HomeMy WebLinkAboutWater Plan Update Appendices_Final_Dec_2012Appendix A
SEPA CHECKLIST AND DNS
Appendix B
AGENCY COMMENT LETTERS AND RESPONSES
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Carollo Text added to Section 3.1.2 to indicate locations.
8
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d
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P
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Wa
t
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W
a
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h
t
s
11
DO
H
&
DO
E
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N/A. N/A.
Sy
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17
DO
H
7
Ta
b
l
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7-
1
0
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.
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e
a
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a
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n
t
h
e
t
e
x
t
.
Carollo Carollo added text and table to Section 7.4.1.2.
18
DO
H
7
Pa
g
e
7-
1
8
Th
e
a
n
a
l
y
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Carollo Section 7.4.2.1 text updated.
pw
:
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Responsible Action
19
DO
H
7
Pa
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7
-
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m
a
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d
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a
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d
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;
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u
n
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n
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th
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s
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f
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po
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s
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d
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.
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a
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c
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a
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da
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d
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m
a
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c
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d
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s
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a
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d
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p
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s
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m
u
l
a
t
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o
n
.
No
c
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e
t
o
P
l
a
n
.
N/A N/A
20
DO
H
7
Pl
e
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o
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c
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m
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d
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P
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a
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m
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d
s
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m
u
l
a
t
i
o
n
.
T
h
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m
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d
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a
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b
r
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d
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s
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d
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t
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d
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a
,
re
p
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v
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n
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S
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A
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A
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(
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.
T
h
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g
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a
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c
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b
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e
m
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l
.
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c
o
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l
y
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h
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d
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mu
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t
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a
y
s
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m
u
l
a
t
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.
No
c
h
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e
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P
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n
.
N/A N/A
21
DO
H
7
Fi
g
u
r
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s
7-
8
th
r
o
u
g
h
7-
1
1
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34
KC
4
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35
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36
KC
5
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City to Carollo Section added.
1
Alena Bennett
From:Lara Kammereck
Sent:Thursday, December 27, 2012 3:45 PM
To:Alena Bennett; Lish Moreau
Subject:FW: Renton Water System Plan - DOH Comment Response
From: Igoe, Paige S (DOH) [mailto:Paige.Igoe@DOH.WA.GOV]
Sent: Thursday, September 06, 2012 1:30 PM
To: Rachel Lanigan; Rodriguez, Richard (DOH)
Cc: Lara Kammereck; Igoe, Paige S (DOH)
Subject: RE: Renton Water System Plan - DOH Comment Response
Hi Rachel, I looked over the response to comments and your proposed actions appear to be on track, although we will
want to see the edits, additions, etc.
I did want to point out a few items:
On Comment 2 – I understand the WFI will be changed to show Wells 4 and 5 to be inactive. I believe Well 4 is described
as decommissioned in Chapter 6. Is that the case? Please check in with Renton and make the appropriate changes.
On Comments 22 and 24 – not sure my original comments were interpreted correctly, so I will wait to see the edits. On
comment 22, typically if deficiencies are identified in the system analysis and improvements are determined – we would
want to see how the pressures and available fire flows improve with the projects in place. And of course, we would
want to see the improvements described in the text and shown in the CIP. For fire flow, the figures provided don’t
appear to include the improvements. I also can’t tell which projects in the CIP address the fire flow deficiencies.
On Comment 23 – I would like to make the point that DOH would want to see project reports for any projects that come
out of the pressure zone optimization project. And again, I can’t tell which projects listed in the CIP table address the
high/low pressure deficiencies identified in the system analysis.
Those are my main comments. Please give me a call if you have additional questions. I look forward to seeing the
resubmittal.
Thanks,
Paige
From: Rachel Lanigan [mailto:RLanigan@carollo.com]
Sent: Thursday, August 30, 2012 2:30 PM
To: Rodriguez, Richard (DOH); Igoe, Paige S (DOH)
Cc: J. D. Wilson; Abdoul Gafour; Lara Kammereck
Subject: Renton Water System Plan - DOH Comment Response
Hi Richard and Paige,
It was nice meeting you two in person last week!
After review with the City, we have prepared a comment response log to address your comments on Renton’s Water
System Plan. Attached is your original review letter dated August 3, 2012 and the response log. As you will see, the log
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includes the City’s reply to each comment and any proposed changes to the plan. Please let us know if you have any
further suggestions or comments and we will begin incorporation of these changes.
Thanks!
Rachel
Rachel Lanigan, P.E.
Carollo Engineers, Inc.
720 SW Washington Street, Suite 550
Portland, OR 97205
503.227.1885
www.carollo.com
Carollo is…Focused on Sustainability.
Please consider the environment before printing this email.
City of Renton Water Utility’s Response to King County UTRC’s Comments and
Questions Regarding the City’s 2012 Water System Plan
Response to King County’s question on water demand projection
King County’s comment: “Affirm that current King County zoning was mapped and used within the future
water demand projection for those portions of the retail service area outside of the City and in
unincorporated King County.”
Affirmed. Most of these areas are zoned R‐6 / R‐6‐P by King County and are already fully developed
with single family dwellings. There is one small area north of S 130th Street / Renton Ave S that is zoned
R‐12 by King County. There is one lot with a single family dwelling on it that is zoned by King County as
R‐8. There is an apartment complex at 13445 Martin Luther King Junior Way S sited on parcels that King
County has zoned R‐24. While this complex is with our retail water service area it is served by Seattle
Public Utilities and will continue to be so served. There is an area zoned R‐4 by King County near the
9800 block of 126 Ave SE. All of this area is fully developed with single family dwellings except for three
parcels: 0423059002, 0423059013, and 0423059014. This was all considered in the demand projection.
Confirmation of King County’s zoning will be incorporated into Chapter 3.
Response to King County’s reminder to complete the King County reclaimed water checklist
King County’s comment: “Complete the King County reclaimed water checklist (attached). Reference to
a pending King County reclaimed water plan on ES‐10 and page 6‐27 is incorrect.”
The checklist was completed and was emailed to Steve Hirschey on December 3, 2012. Reference to the
Checklist will be added to Chapter 6, and the Checklist will be incorporated as Appendix Q. The
references to the pending King County reclaimed water plan have been removed.
Response to King County’s comments on “water use efficiency goal and water loss control plan”
King County’s comment: “Affirm [that] the City’s water use efficiency goal [and] the proposed water loss
control plan are consistent with State law.”
Affirmed. No change made to plan.
Response to King County’s comments on “timely and reasonable water service” policy
King County’s comments: “Clarify and/or provide the City’s adopted service area policies as to what
“timely and reasonable” service is and aspects of reasonable service considered by the City for service to
unincorporated King County”
The City’s policies on providing “timely and reasonable” water service to all properties within the City’s
retail water service area, are consistent with state law RCW 19.27.097, and with the “Guidelines for
Determining Water Availability for New Buildings” as adopted by the Washington State Department of
Health and the Department of Ecology.
City of Renton Water Utility’s Response to King County UTRC’s Comments and
Questions Regarding the City’s 2012 Water System Plan
The City typically processes and issues all requests for water availability within one week of our receipt
of the applications for a King County Certificate of Water Availability.
For new residential subdivisions in King County that are within the City’s water service area, the City will
require a developer’s extension of a City water line to provide service to the individual lots. The City
typically reviews the civil plans for water man extension within two weeks of our receipt of the plans
and the plans are approved as soon as our review comments have been addressed. The City also
coordinates with King County to assure that all county road permits are obtained and that all fees are
paid to the county for plan review and for inspection of the roadway restoration related to the
construction of the water lines within the county roads.
For multi‐family and commercial developments in King County that are within the City’s water service
area, the City will coordinate with King County fire marshal to verify the fire flow requirements and will
require a developer’s extension of a City water line(s) and related appurtenances to provide the
required fire flow demand and also for domestic water service. Our review time of the civil water
improvement plans and for processing of permits is similar with the one for residential development.
No change made to plan.
Response to King County’s comments on water rate for outside City customers
King County’s comments: “Clarify, explain or provide justification why a water service applicant outside
of the City must pay a water rate 1.5 times the residential city rate.
The City charges a higher water rate to customers that are outside of the City limits in order to recover
extra costs incurred by the City in the following situations:
1. The City must obtain a permit from King County and pay all related inspection fees for all work
within a county road for the installation, maintenance and repair of City water mains, water
service lines and meters, hydrants, and related appurtenances.
2. The City must relocate its water mains at the City’s cost in conjunction with the County’s
roadway improvements work and roadway overlay program.
Due to the large number of annexations into the City from 1994 to 2012, there are very few remaining
water customers within King County that are receiving City’s water service. The majority of new
development and of existing water customers bordering the current City limits is served by other water
purveyors.
No change made to plan.
Response to King County’s comments on expiration of water franchise no. 6030.
The water franchise no. 6030 approved by King County on June 11, 1984 was needed for the installation,
operation and maintenance of a City of Renton’s 12‐inch transmission water main located in 80th Ave
City of Renton Water Utility’s Response to King County UTRC’s Comments and
Questions Regarding the City’s 2012 Water System Plan
South from S 112th St to S 128th St to supply wholesale water from the City’s West Hill reservoir to
Skyway Water & Sewer District, formerly known as Bryn‐Mawr Water District. The expiration date of
this 25‐year franchise was June 11, 2009 as correctly stated in your letter.
There are no existing or future City’s water customers connected to this transmission main since the
adjacent properties are within the retail water service area of Skyway Water and Sewer District.
The City’s maintenance work on this transmission is very minimal since the water line is a ductile iron
pipe installed in 1985 with a useful life of 75 years or more.
The City also has another franchise agreement no. 9352 approved by King County on August 12, 1994
with a 25‐year term and an expiration date of August 12, 2019. This franchise covers the operation and
maintenance of all of the remaining City’s water lines within King County roads. This franchise covered
10 small areas within King County that are adjacent to the City limits and also within the City’s retail
water service area. Since 1994 to 2012, 9 out of the 10 areas covered under franchise 9352 have been
annexed to the City and are no longer within King County.
Instead of renewing franchise no. 6030, the City would like to amend the legal description existing
franchise no. 9352 to include the area covered in franchise 6030 for the water transmission main in 80th
Ave S. The amendment of the legal description will also include the removal of the description of the 9
parcels that are no longer within King County.
The City intends to apply for a renewal of franchise no. 6030, at least one‐year before its expiration date
of August 12, 2019, for the operation and maintenance of all remaining City water mains within King
County roadways. We hope that King County will be amenable to our request.
No change made to plan.
Appendix C
ADOPTING RESOLUTION
CITY OF RENTON, WASHINGTON
RESOLUTION NO. 4154
A RESOLUTION OF THE CITY OF RENTON, WASHINGTON, ADOPTING THE 2012
WATER SYSTEM PLAN UPDATE.
WHEREAS, the 2012 Water Systems Plan Update ("Plan") was reviewed by the City of
Renton Environmental Review Committee, which issued a Determination of Non-Significance;
and
WHEREAS, a Notice of Environmental Determination was made public, and no
comments or appeals were received during the public comment and appeal periods, which
ended April 27, 2012; and
WHEREAS, the Plan was presented to the Renton City Council, discussed at a meeting of
the Utilities Committee, and recommended for adoption by the full City Council; and
WHEREAS, the Plan is compatible with the intent of the City's adopted Comprehensive
Plans;
NOW, THEREFORE, THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DOES
RESOLVE AS FOLLOWS:
SECTION I. The above findings are found to be true and correct in all respects.
SECTION II. The 2012 Water System Plan Update is hereby adopted by the City of
Renton.
PASSED BY THE CITY COUNCIL this 13 day of August , 2012.
Bonnie I. Walton, City Clerk
1
RESOLUTION NO. 4154
APPROVED BY THE MAYOR this 13 day of August 2012.
Approved as to form:
Lawrence J. Warren, City Attorney
RES:1565:7/2/12:scr
Denis Law, Mayor
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Appendix D
AGREEMENTS
CITY OF RENTON AND
SKYWAY WATER AND SEWER DISTRICT
FOR THE ESTABLISHMENT OF WATER AND SANITARY SEWER SERVICE
BOUNDARIES
THIS AGREEMENT is entered into this _31st_ day of __December_______,
2003__, by and between SKYWAY WATER AND SEWER DISTRICT, a Washington
municipal corporation, hereinafter referred to as “SWSD”, and the CITY OF RENTON, a
Washington municipal corporation, hereinafter referred to as “RENTON”.
WITNESSETH:
WHEREAS, SWSD is qualified to provide water and sanitary sewer service within
its prescribed area; and
WHEREAS, RENTON is qualified to provide public services, including water and
sanitary sewer service, within its prescribed areas; and
WHEREAS, the former Skyway Water and Sewer and Bryn Mawr-Lakeridge
Water and Sewer Districts have officially merged, with the district subsequently retaining
the name of Skyway Water and Sewer District; and
WHEREAS, the former Skyway Water and Sewer District had existing water and
sewer boundary agreements with RENTON; and
WHEREAS, SWSD provides water and sanitary sewer service in an area
adjacent to and within RENTON’s corporate boundaries and it is in the public interest for
the parties herein to enter into an agreement to provide for the efficient planning and
development of new water and sanitary sewer services in areas which may be served
by either, or both, of the parties; now, therefore,
IT IS HEREBY AGREED by and between the parties hereto as follows:
1. Water Service Area Boundary Between RENTON and SWSD. The attached
legal description, Exhibit A, describes the line separating the RENTON water
service area from SWSD water service area. The attached map, Exhibit B,
depicts the line separating the RENTON water service area from SWSD water
service area. RENTON shall provide water service for the area generally South
and East of the line illustrated. SWSD shall provide water service for the area
generally North and West of the line illustrated.
Any new construction, upgrading, or replacements within the RENTON City
Limits by SWSD for water service shall be in compliance with RENTON design
and construction standards then in effect or SWSD design and construction
standards, whichever are the higher design and construction standards including:
materials, techniques, and fire flow.
2.
City of Seattle Water Service Area: The City of Seattle (SEATTLE) currently
provides direct water service to portions of the service area being discussed in
this agreement. These areas are not contiguous to the remainder of SEATTLE’s
service area, but have been served by SEATTLE for some time. These areas,
herinafter the “Transfer Area”, are identified in the Skyway Coordinated Water
System Plan, as to be transferred to the appropriate purveyors as feasible and /
or required by new development or annexation.
SEATTLE is not a party to this agreement and the agreement should have no
direct effect on SEATTLE. This agreement does not directly discuss the transfer
of the SEATTLE service areas. This agreement only identifies the boundaries of
the local purveyors to whom the service areas would belong to when transferred.
3. Overlaps in Water Service Within Transfer Area: Any overlaps in water service in
the Transfer Area will be addressed at the time of the actual transfer and will not
be determined as part of this agreement. RENTON and SWSD mutually agree to
notify the other and receive concurrence from the other prior to providing service
to any additional customers within the Transfer Area. Properties within the
transfer area are depicted on Exhibit B
4. Transfer of certain Seattle Public Utilities Water Mains Within and Along the
Transfer Area to RENTON: SWSD agrees that RENTON and Seattle Public
Utilities have the right and would not be violating the intent of this agreement to
transfer the ownership of the following water mains from Seattle Public Utilities to
RENTON:
a) the twelve inch diameter water main which runs southeasterly along
Martin Luther King Way from the intersection of 68th Avenue South and
Martin Luther King Way to the intersection of Martin Luther King Way and
South 135th Street then northerly within an easement to South 133rd Street
then easterly along South 133rd Street to the intersection of South 133rd
Street South 132nd Street, and South 134th Street where it is reduced to an
eight inch diameter water main, and
b) the eight inch diameter water main which runs easterly along South 132nd
Street from the twelve inch by eight inch reducer at the intersection of
South 133rd Street South 132nd Street, and South 134th Street to the
intersection of South Langston Road and South 134th Street, and
c) the water main that varies in diameter from eight inches to four inches to
six inches which runs easterly along South 135th Street from the
intersection of South 135th Street and Martin Luther King Way to the
intersection of South 135th Street and 80th Avenue South then northerly
along 80th Avenue South to the intersection of 80th Avenue South and
South 134th Street.
5. Existing SWSD Water Service Connections in RENTON Service Area: SWSD
currently provides water service to properties inside RENTON’s water service
area. RENTON consents to SWSD continuing to provide water service to these
properties. The properties are listed in Exhibit E and depicted in Exhibit B.
6. Existing RENTON Water Service Connections in SWSD Service Area: RENTON
currently provides water service to properties inside SWSD’s water service area.
SWSD consents to RENTON continuing to provide water service to these
properties. The properties are listed in Exhibit F and depicted in Exhibit B.
7. Overlap Areas: It is understood that RENTON and SWSD will continue providing
service within the service area boundaries of the adjacent water utility, as defined
in Sections 5 and 6 of this agreement, and which shall be known as overlap
areas. RENTON and SWSD agree that any retail water service line extending
outside of the service area boundary, as set forth in Section 1, shall be phased
out and service transferred to the adjacent utility by mutual agreement.
8. Sewer Service Area Boundary Between RENTON and SWSD. The attached
legal description, Exhibit C, describes the line separating the RENTON sewer
service area from SWSD sewer service area. The attached map, Exhibit D,
depicts the line separating the RENTON sewer service area from SWSD sewer
service area. RENTON shall provide sanitary sewer service for the area
generally South and East of the line illustrated. SWSD shall provide sanitary
sewer service for the area generally North and West of the line illustrated.
Any new construction, upgrading, or replacements within the RENTON City
Limits by SWSD for sewer service shall be in compliance with RENTON design
and constructions standards then in effect, or SWSD design and construction
standards, whichever are the higher design and construction standards including:
materials and techniques.
9. RENTON’s Service Area Boundaries Overlap SWSD’s Corporate Boundary:
There are areas where RENTON’s service area boundaries and SWSD’s
corporate boundary overlap. RENTON and SWSD acknowledge that, with
regard to providing service, it is the water and sanitary sewer service boundaries
which govern, not the corporate boundaries.
10. Rescission of Prior Agreements: The former Skyway Water and Sewer District
and RENTON entered into an agreement relating to water service area
boundaries between the two jurisdictions dated February 2, 1998. That boundary
has been incorporated into the SWSD boundary adopted by this document and
the agreement is hereby rescinded.
The former Skyway Water and Sewer District and RENTON entered into an
agreement relating to sanitary sewer service area boundaries between the two
jurisdictions dated June 9, 1994. That boundary has been incorporated into the
SWSD boundary adopted by this document and the agreement is hereby
rescinded.
11. Maintenance of Existing Facilities: SWSD and RENTON will each maintain their
own facilities, according to industry standards.
12. SWSD Comprehensive Water and Sewer Planning. SWSD will submit, to
RENTON, all future Comprehensive Water and Sewerage Plans and
amendments thereto involving area and/or improvements within RENTON City
Limits. Said submission of the SWSD Plan(s) is to assure consistency with
adopted city plans, policies, and land use controls, assist in the review of new
development proposals and right-of-way construction permits, and to fulfill the
responsibilities set forth in RCW 57 and King County Title 13. As new facilities
are planned, constructed, maintained, and/or replaced within RENTON, they
shall comply with RENTON design and construction standards then in effect, or
SWSD design and construction standards, whichever are the higher design and
construction standards.
13. Extension of Utilities Across Properties. RENTON and SWSD agree that they
will require property owners who must extend facilities to service their property in
a comprehensive fashion up to and including extending said facilities to the far
side of the property, when appropriate, to provide a connection point for the
future (or existing) facilities of the next property.
14. Franchise Agreement. Upon RENTON annexing property within the SWSD
service area, RENTON shall grant SWSD, for the purposes of continuing use of
rights-of-way, a temporary franchise for utility facilities within the annexed
territory. This franchise shall have the same provisions as stated in the franchise
between King County and SWSD and have a term not to exceed 3 (three) years.
RENTON and SWSD will immediately begin negotiations for a new franchise for
the purposes of rights-of-way use for SWSD service area within RENTON. The
new franchise shall be negotiated within three years.
Upon any subsequent annexations by RENTON within the SWSD service area,
RENTON shall amend the franchise to include the annexed area, in order to
maintain one franchise agreement. The franchise shall maintain the remaining
balance of the term of the franchise. The franchise should include any updated
provisions as approved by RENTON and agreed to by SWSD.
Any franchise agreement issued hereunder shall be consistent with the
respective comprehensive plans of the parties and State law.
15. Governmental Approvals. The parties will give notice of the adoption of this
Agreement to Metropolitan King County, to the Department of Ecology, to the
Department of Health, and to any other agency with jurisdiction, and shall
cooperate and assist in any reasonable manner in procuring any necessary
approvals hereof by those agencies.
16. Miscellaneous. This Agreement constitutes the entire agreement of the parties,
concerning the subject matter herein, and there are no representations or oral
agreements other than those listed herein, which vary the terms of this
Agreement. Future agreements may occur between the parties to identify, agree
upon, or transfer service areas and/or facilities. This Agreement shall have a
term of 25 (twenty-five) years.
17. Obligations Intact. Nothing herein shall be construed to alter the rights,
responsibilities, liabilities, or obligations of either SWSD or RENTON regarding
provisions of water or sewer services to the properties described herein, or other
properties, except as specifically set forth herein.
DATED this ______ day of _________________, 200__.
Authorized by Resolution No. ______ of the City Council of the City of Renton,
Washington, at its regular meeting held on _______ day of ________________,
200__.
CITY OF RENTON
Jesse Tanner, Mayor Date
ATTEST:
Bonnie I. Walton, City Clerk Date
APPROVED AS TO LEGAL FORM:
Lawrence J. Warren, City Attorney
Approved by Resolution No. ______/_____ of the Board of Commissioners of
SKYWAY WATER AND SEWER DISTRICT of King County, Washington,
adopted at its regular meeting held on ______ day of ____________, 200__.
SKYWAY WATER AND SEWER DISTRICT
By:
Title:
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EXHIBIT A
SKYWAY WATER AND SEWER DISTRICT AND CITY OF RENTON
AGREEMENT FOR THE TRANSFER OF FACILITIES
AND ESTABLISHMENT OF SERVICE BOUNDARIES
(WATER SERVICE BOUNDARY LINE)
A water service area boundary line between Skyway Water and Sewer District and the City of Renton
through C.E. Brownell Donation Land Claim No. 41 in Sections 13 and 14, Government Lot 8 and the
Northeast quarter of Section 13, the Southeast quarter of Section 12, all in Township 23 North, Range 4
East, W.M., and the Southwest quarter and Northwest quarter of Section 7, all in Township 23 North,
Range 5 East, W.M., described as follows:
Beginning the aforementioned water service boundary line in the Southeast quarter of said Section 14, at
the intersection of the northeasterly right of way margin of Burlington Northern Railroad with the
northwesterly right of way margin of the vacated street adjoining Lot 33 of Junction Addition to Seattle,
as recorded in Volume 12 of Plats, Page 75, Records of King County, Washington, all situated in C.E.
Brownell Donation Claim No. 41, as recorded in the Records of King County, Washington, said
intersection also being the existing City limits of Renton as annexed by Ordinance No. 4578 and the
existing City limits of Tukwila as annexed by Ordinance Nos. 1503 and 1515;
Thence northerly along said northwesterly right of way margin of said vacated street and said existing
City limits of Tukwila and Renton, to an intersection with the southwesterly right of way margin of
Beacon Coal Mine Road S. Rev.;
Thence northwesterly and northerly along said southerly right of way margin, and said existing City
limits of Tukwila, to an intersection with the south line of the north half of said Donation Claim No. 41;
Thence westerly along said south line, and said existing City limits of Tukwila, to an intersection with the
easterly right of way margin of the Union Pacific Railroad;
Thence northwesterly along said easterly right of way margin and said existing City limits of Tukwila, to
an intersection with the north boundary line of said Donation Claim No. 41;
Thence easterly along said north boundary line and said existing City limits of Tukwila, to an intersection
with the southwesterly right of way margin of Beacon Coal Mine Road S. Rev.;
Thence continuing easterly along said north boundary line, crossing said right of way, to an intersection
with the northeasterly right of way margin of Beacon Coal Mine Road S. Rev.;
Thence southeasterly, southerly, westerly, southerly and southeasterly, along said northeasterly right of
way margin, to the most southwesterly corner of Lot A, King County Lot Line Adjustment No. 8612009,
as approved by King County, Washington on February 4, 1987;
Thence northeasterly along the southerly line of said Lot A, to an intersection with the south line of the
north half of said Donation Claim No. 41;
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Thence easterly along said south line of the north half of said Donation Claim No. 41, to an intersection
with the westerly right of way margin of 68th Avenue S.;
Thence northeasterly along said westerly right of way margin, to an intersection with the southerly right
of way margin of Martin Luther King Junior Way South (State Road No. 2), the center line of said Martin
Luther King Junior Way South right of way being 110 feet northerly of, as measured perpendicular to,
said southerly right of way margin;
Thence easterly along the easterly extension of said southerly right of way margin, crossing said 68th
Avenue S., to an intersection with the easterly right of way margin of said 68th Avenue S.;
Thence northerly along said easterly right of way margin, to an intersection with the southerly right of
way margin of said Martin Luther King Junior Way South, the centerline of said Martin Luther King
Junior Way South right of way being 50 feet northerly, as measured perpendicular to, said southerly right
of way margin;
Thence southeasterly along said southerly right of way margin, to an intersection with the east line of the
west 419.61 feet of the northwest quarter of said Section 13;
Thence northerly along said east line, crossing said Martin Luther King Junior Way South, to an
intersection with the southerly right of way margin of South 133rd Street;
Thence easterly along said southerly right of way margin, to an intersection with the southerly right of
way margin of S. 134th Street;
Thence northwesterly, crossing S. 134th Street, to the point of intersection of the northerly right of way
margin of S. 134th Street and the southerly right of way margin of S. 132nd Street;
Thence northeasterly along said southerly right of way margin of S. 132nd Street, to an intersection with
the westerly right of way margin of 76th Avenue S., said westerly right of way margin also being the west
line of the northeast quarter of said Section 13;
Thence northerly along said westerly right of way margin and said west line of the northeast quarter,
crossing S. 132nd Street, to an intersection with the southerly right of way margin of S. Langston Road
(also known as John Langston Road No. 3 and 78th Avenue S. Extension Revision);
Thence easterly, northeasterly and northerly along said southerly right of way margin of S. Langston
Road, crossing said 76th Avenue S. and S. 130th Street, to the northwest corner of Lot 6, Block 7 of
Earlington Acre Tracts, as recorded in Volume 15 of Plats, Page 84, Records of King County,
Washington;
Thence easterly along the north line of Block 7 of said plat, to the northwest corner of Lot 2 of said Block
7;
Thence southerly along the west line of said Lot 2, to an intersection with the south line of the north 100
feet of said Lot 2;
Thence easterly along said south line, to an intersection with the east line of said Lot 2;
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Thence northerly along said east line, to the northeast corner of said Lot 2 and a point on the north line of
said Block 7;
Thence easterly along said north line, to the northeast corner of Lot 1 of said Block 7, said northeast
corner also being a point on the westerly right of way margin of 80th Avenue S.;
Thence northeasterly, crossing 80th Avenue S., to the point of intersection of the easterly right of way
margin of said 80th Avenue S. with the northeasterly right of way margin of Renton Avenue S., said point
of intersection also being a point on the west line of Lot 6, Block 2 of said plat;
Thence southeasterly along said northeasterly right of way margin, to an intersection with the west line of
Lot 3, Block 8 of said plat;
Thence northerly along the west line of said Lot 3, to the northwest corner thereof;
Thence easterly along the north line of said Block 8 and Block 9 of said plat, to the northwest corner of
Lot 6 of said Block 9, said northwest corner also being the southwest corner of Lot 6, Block 1 of said
plat;
Thence northerly along the west line of said Lot 6 of said Block 1, a distance of 88.16 feet;
Thence easterly, crossing said Lot 6 and Lots 5, 4, 3 and 2 of said Block 1, to a point on the east line of
said Lot 2 being 95.86 feet northerly of the southeast corner thereof;
Thence northerly along the east line of said Lot 2, said east line also being the west line of Lot 1 of said
Block 1, to an intersection with the south line of the north 70 feet of said Lot 1;
Thence easterly along said south line, to an intersection with the east line of said Lot 1, said east line also
being the westerly right of way margin of 84th Avenue S.;
Thence northerly along said east line and said westerly right of way margin, to the northeast corner of
said Lot 1;
Thence northerly, crossing S. 128th Street, to the southeast corner of Lot 20 of the vacated plat of
Clinkingbeards One Fourth Acre Tracts, as recorded in Volume 21 of Plats, Page 26, Records of King
County, Washington, in the Southeast quarter of Section 12, Township 23 North, Range 4 East, W.M.;
Thence northerly along the east line of said Lot 20 and said westerly right of way line of 84th Avenue S.,
to an intersection with the south line of the north 7 feet of said Lot 20;
Thence westerly along said south line and the westerly extension of said south line, to an intersection with
the west line of Lot 19 of said plat;
Thence northerly along the west line of said Lot 19 and Lot 2 of said plat, to the northwest corner of said
Lot 2 and the north line of said plat;
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Thence easterly along said north line, to an intersection with the east line of the west 195 feet of the south
half of the Northeast quarter of the Southeast quarter of the Southeast quarter of the Southeast quarter of
said Section 12;
Thence northerly along said east line, to an intersection with the north line of said subdivision;
Thence easterly along said north line, to an intersection with said westerly right of way margin of 84th
Avenue S.;
Thence northerly along said westerly right of way margin and its northerly extension, and in part, the east
line of Tract A of Mountain View Home Tracts, as recorded in Volume 74 of Plats, Page 28, Records of
King County, Washington, crossing S. 126th Street, to an intersection with the easterly extension of the
northerly right of way margin of S. 126th Street;
Thence westerly along said easterly extension and said northerly right of way margin, said margin also
being, in part, the south line of Lot 17 of Hilltop’s Suburban Club, as recorded in Volume 77 of Plats,
Page 51, Records of King County, Washington, to the southwest corner of said Lot 17;
Thence northerly along the west line of said Lot 17, to the northwest corner thereof, said northwest corner
also being a point on the south line of Lot 16 of said plat;
Thence westerly along said south line of Lot 16, to the southwest corner thereof, said southwest corner
also being the southeast corner of Tract A of said plat;
Thence northerly along the east line of Tract A, to the northeast corner thereof, said northeast corner also
being the northwest corner of Lot 10 of said plat;
Thence easterly along the north line of said Lot 10, to the southwest corner of Lot 9 of said plat;
Thence northerly along the west line of said Lot 9, to the northwest corner thereof, said northwest corner
also being a point on the southerly right of way margin of S. 124th Street;
Thence northwesterly, crossing S. 124th Street, to the southwest corner of Lot 23, Block 60 of Bryn
Mawr, as recorded in Volume 5 of Plats, Page 58, Records of King County, Washington, said southwest
corner being a point on the northerly right of way margin of S. 124th Street;
Thence northerly along the west line of said Lot 23, to the northwest corner thereof;
Thence easterly along the north line of said Lot 23 and the north line of Lots 22 and 21 of said plat, to the
northeast corner of said Lot 21, said northeast corner also being a point on the westerly right of way
margin of said 84th Avenue S.;
Thence easterly, crossing said 84th Avenue S., to the northwest corner of Lot 28, Block 61 of said plat,
said northwest corner also being a point on the easterly right of way margin of said 84th Avenue S.;
Thence easterly along the north line of said Lot 28 and the north line of Lots 27-15, inclusive, of said
Block 61, to the northeast corner of said Lot 15, said northeast corner also being a point on the westerly
right of way margin of 85th Avenue S.;
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Thence northerly along said westerly right of way margin, crossing S. 123rd Place, S. 123rd Street and S.
122nd Street, to the northeast corner of Lot 15, Block 48 of said plat;
Thence easterly, crossing said 85th Avenue S., to the northwest corner of Lot 38, Block 47 of said plat,
said northwest corner being a point on the easterly right of way margin of said 85th Avenue S.;
Thence continuing easterly along the north line of said Lot 38 and the north line of Lot 37 of said Block
47, to the northeast corner of said Lot 37;
Thence southerly along the east line of said Lot 37, to the southeast corner thereof;
Thence easterly along the south line of said Block 47, to an intersection with the west line of Lot 25 of
King County Boundary Line Adjustment No. L96L0074, as recorded under King County Recording No.
9709189007;
Thence northerly along the west line of said Lot 25, to the northwest corner thereof;
Thence easterly along the north line of said Lot 25, to the northeast corner thereof:
Thence southerly along the east line of said Lot 25, to the northwest corner of Lot 28 of said boundary
line adjustment;
Thence easterly along the north line of said Lot 28, to the northeast corner thereof, said northeast corner
also being the northwest corner of Lot 21 of said Block 47;
Thence easterly along the north line of said Lot 21, to the northeast corner thereof, said northeast corner
also being a point on the westerly right of way margin of 87th Avenue S.;
Thence southerly along said westerly right of way margin, to an intersection with the westerly extension
of the south line of Tract 1 of N.H. Latimer’s Lake Washington Plat, as recorded in Volume 6 of Plats,
Page 70, Records of King County, Washington;
Thence easterly along said westerly extension, crossing said 87th Avenue S., to the southwest corner of
said Tract 1, said southwest corner also being a point on the northerly right of way margin of S. 122nd
Street;
Thence easterly along the south line of said Tract 1 and the south line of Tracts 2 and 3 of said plat and
said northerly right of way margin, to an intersection with the east line of the west half of vacated 90th
Avenue S.;
Thence northerly along said east line and the northerly extension of said east line, crossing S. 121st St.,
and, in part, along the existing City limits of Renton as annexed by Ordinance No. 2426, to an
intersection with the south line of Lot 12, Lenz Farmette Tracts, as recorded in Volume 37 of Plats, Page
36, Records of King County, Washington, said south line also being the northerly right of way margin of
S. 121st Street;
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Thence westerly along said south line and said northerly right of way margin and, in part, said existing
City limits, to an intersection with the east line of the west 32 feet of said Lot 12;
Thence northerly along said east line and said existing City limits, to an intersection with the south line of
Lot 11 of said plat;
Thence westerly along said south line and said existing City limits, a distance of 32 feet, to the southwest
corner of said Lot 11;
Thence northerly along the west line of said Lot 11 and said existing City limits, to the northwest corner
thereof;
Thence easterly along the north line of said Lot 11 and said existing City limits, to the northeast corner of
said Lot 11, said northeast corner also being on the westerly right of way margin of Rainier Avenue N.;
Thence northerly along said westerly right of way margin and said existing City limits, to an intersection
with the south line of the Northwest quarter of said Section 7;
Thence westerly along said south line and the existing City limits of Renton as annexed by Ordinance No.
2019, to an intersection with the southerly extension of the west line of Lot 12, Block 40 of said plat of
Bryn Mawr;
Thence northerly along said southerly extension and along the west line of Lot 12, Block 40 of said plat,
and said existing City limits, crossing vacated S. 120th Street, to the northwest corner of said Lot 12, said
northwest corner also being the southeast corner of Lot 22 of said Block 40;
Thence westerly along the south line of said Lot 22, and Lots 23 and 24 of said Block 40, and the
westerly extension of said south line, and said existing City limits, to an intersection with a line lying 8
feet westerly of and parallel with the west line of said Lot 24 and Lots 9 and 24 of Block 35 of said plat;
Thence northerly along said parallel line and said existing City limits, and in part, the existing City limits
of Renton as annexed by Ordinance No. 4090, crossing vacated S. 119th Street, to an intersection with the
southerly right of way margin of S. 118th Street;
Thence easterly along said southerly right of way margin and said existing City limits, to the northwest
corner of Lot 24 of Block 35 of said plat;
Thence northerly along the northerly extension of the west line of said Lot 24, and said existing City
limits, to an intersection with the centerline of that portion of S. 118th Street (Irving Avenue, Wallace
Street) as vacated by Superior Court No. 156371;
Thence easterly along said centerline and said existing City limits, to an intersection with the southerly
extension of the west line of Lot 13, Block 30 of said plat;
Thence northerly along said southerly extension and the west line of said Lot 13 and said existing City
limits, to the northwest corner of said Lot 13;
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Thence easterly along the north line of said Lot 13 and the north line of Lot 14 of said Block 30 and said
existing City limits, to the northeast corner of said Lot 14, said northeast corner also being the southwest
corner of Lot 18 of said Block 30;
Thence northerly along the west line of said Lot 18, to the northwest corner thereof, said northwest corner
also being a point on the southerly right of way margin of Hawthorne Street;
Thence easterly along the north line of said Lot 18, and said southerly right of way margin, to an
intersection with the southerly extension of the west line of the east 15 feet of Lot 15, Block 25 of said
plat;
Thence northerly along said southerly extension, crossing said Hawthorne Street, to an intersection with
the south line of said Lot 15 and the northerly right of way margin of said Hawthorne Street;
Thence easterly along the south line of said Lot 15 and the south line of Lot 16 of said Block 25, and the
easterly extension of said south line and said northerly right of way margin, to an intersection with the
centerline of 89th Avenue S., as vacated by Superior Court No. 156371;
Thence northerly along said centerline, to an intersection with the westerly extension of the north line of
Lot 5, Block 26 of said plat;
Thence easterly along said westerly extension, to the northwest corner of said Lot 5;
Thence continuing easterly along the north line of said Lot 5 and the easterly extension of said Lot 5, said
north line and easterly extension also being said existing City limits, crossing Rainier Avenue N. (Primary
State Highway No. 5, State Road 167), to an intersection with the easterly right of way margin of said
Rainier Avenue N., said intersection also being a point on the existing City limits of Renton as annexed
by Ordinance No. 1300;
Thence northerly along said easterly right of way margin and said existing City limits, to an intersection
with a line which is 5 feet south of and parallel with the common line between Lots 7 and 8, Block 18,
Bryn Mawr, as recorded in Volume 5 of Plats, Page 58, Records of King County, Washington;
Thence South 88°27’28” East, along said parallel line and said existing City limits, a distance of 89.23
feet, to the west line of Defense Plant Corp. 5-24-43;
Thence North 05°16’51” East, along said existing City limits, a distance of 438.90 feet, to an intersection
with a line which is 2 feet south of and parallel with the common line between Lots 1 and 2, Block 17 of
said plat;
Thence North 40°09’47” East, along said existing City limits, a distance of 188.55 feet;
Thence North, along said existing City limits, a distance of 60 feet;
Thence North 29°00’40” West, along said existing City limits, a distance of 197.07 feet;
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Thence South 88°27’28” East, along said existing City limits, a distance of 355.00 feet, to a point on the
Inner Harbor Line of Lake Washington, as shown upon Sheet No. 26 of the Plat of Lake Washington
Shore Lands Survey 1921, as said plat was filed with the Auditor of King County, Washington,
September 19, 1921, under Recording No. 1552504, said point being a distance of 92.62 feet along said
Inner Harbor Line from the angle point “862” on said plat, and the terminus of the herein described water
service boundary line.
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EXHIBIT C
SKYWAY WATER AND SEWER DISTRICT AND CITY OF RENTON
AGREEMENT FOR THE TRANSFER OF FACILITIES
AND ESTABLISHMENT OF SERVICE BOUNDARIES
(SEWER SERVICE BOUNDARY LINE)
A sanitary sewer service area boundary line between the Skyway Water and Sewer District and the City
of Renton through C.E. Brownell Donation Land Claim No. 41 in Sections 13 and 14, Government Lot 8
and the Northeast quarter of Section 13, all in Township 23 North, Range 4 East, W.M., King County,
Washington and the Southwest quarter and the Northwest quarter of Section 7, both in Township 23
North, Range 5 East, W.M., King County Washington, described as follows:
Beginning the aforementioned sanitary sewer boundary line in the Southeast quarter of said Section 14, at
the intersection of the northeasterly right of way margin of Burlington Northern Railroad with the
northwesterly right of way margin of the vacated street adjoining Lot 33 of Junction Addition to Seattle,
as recorded in Volume 12 of Plats, page 75, Records of King County, Washington, all situated in C.E.
Brownell Donation Claim No. 41, as recorded in the Records of King County, Washington, said
intersection also being the existing City limits of Renton as annexed by Ordinance No. 4578 and the
existing City limits of Tukwila as annexed by Ordinance Nos. 1503 and 1515;
Thence northeasterly along the northwesterly right of way margin of said vacated street and said existing
City limits of Tukwila and Renton, to an intersection with the southwesterly right of way margin of
Beacon Coal Mine Road S. Rev.;
Thence northeasterly along said existing City limits of Renton at an angle perpendicular to said southerly
right of way margin, a distance of 40 feet, to an intersection with the northerly right of way line of said
Beacon Coal Mine Road S. Rev.,
Thence southeasterly along said northerly right of way margin and existing City limits, to an intersection
with a line dividing Lot 32 of said plat as described by a deed of conveyance to Charles Monster by
Oregon and Washington Railroad Company dated June 19, 1923;
Thence northeasterly along said dividing line and the existing City limits, crossing 68th Avenue South, to
an intersection with the easterly right of way margin of said 68th Avenue South;
Thence continuing northeasterly along said dividing line and the existing City limits of Renton as
annexed by Ordinance No. 4642, to the northeast corner of said Lot 32, said northeast corner also being a
point on the north line of said plat and also being a point on the northerly right of way margin of South
137th Street;
Thence easterly along said north line of said plat and said northerly right of way margin, to the southwest
corner of the condominium plat of Empire Estates, as recorded in Volume 28 of Condominiums, Pages
106-120, inclusive, Records of King County, Washington, in the Southwest quarter of said Section 13;
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Thence northerly, easterly and northerly along the west line of said condominium plat, to an intersection
with the southerly right of way margin of Martin Luther King Way South (also known as Empire Way
South and State Road No. 2), in the Northwest quarter of said Section 13;
Thence continuing northerly along the northerly extension of said west line, to an intersection with the
centerline of said Martin Luther King Way South;
Thence southeasterly along said centerline, to an intersection with the southerly extension of the west line
of Lot 1, Block 2 of Stiles View Tracts, as recorded in Volume 46 of Plats, Page 85, Records of King
County, Washington;
Thence northerly along said extension and the west line of said Lot 1, to an intersection with the south
line of the north 180 feet of said Block 2;
Thence easterly along said south line, through Lots 1-7, inclusive, of said Block 2, to an intersection with
the east line of said Lot 7, said east line also being the east line of said Donation Claim and the west line
of Lot 8, Block 4 of R.L. Haddock Addition to Earlington, as recorded in Volume 38 of Plats, Pages 4-5,
Records of King County in Government Lot 8 of said Section 13;
Thence northerly along said west line of said Lot 8 and said east line of said Donation Claim, to the
southwest corner of Lot 1 of King County Short Plat No. 982004, recorded under King County Recording
No. 8301040882;
Thence easterly along the south line of said Lot 1 and the easterly extension of said south line, through
Lots 8-6, inclusive, of said Block 4, to an intersection with the east line of said Lot 6;
Thence northerly along said east line to the northeast corner of said Lot 6;
Thence northerly, crossing S. 135th Street, to the southwest corner of Lot 5, Block 3 of said plat;
Thence northerly along the west line of said Lot 5 and the northerly extension of said west line, crossing
S. 134th Street and the Cedar River Pipeline right of way, to an intersection with the northerly right of
way margin of said street and said pipeline;
Thence southeasterly along said right of way margin of said street and pipeline, to an intersection with the
westerly right of way margin of 76th Avenue S., said westerly right of way margin also being the west
line of the Northeast quarter of said Section 13;
Thence northerly along said westerly right of way margin and said west line, crossing S. 132nd Street, to
an intersection with the southerly right of way margin of S. Langston Road (also known as John Langston
Road No. 3 and 78th Avenue S. Extension Revision);
Thence easterly, northeasterly and northerly along said southerly right-of-way margin of S. Langston
Road, crossing said 76th Avenue S. and S. 130th Street, to the northwest corner of Lot 6, Block 7 of
Earlington Acre Tracts, as recorded in Volume 15 of Plats, Page 84, Records of King County,
Washington;
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Thence easterly along the north line of Block 7 of said Plat to the northwest corner of Lot 4 of said Block
being common with the southwest corner of Lot 4, Block 3 of said Plat;
Thence northerly along said west line of said Lot 4 of said Block 3 to the southerly margin of Renton
Avenue;
Thence southeasterly along said margin to the southeast corner of Lot 1 of said Block 3, said southeast
corner also being a point on the westerly right of way margin of 80th Avenue South;
Thence northerly along said westerly right of way margin, to the north line of said Northeast quarter; said
north line also being the centerline of S. 128th Street;
Thence easterly along said north line and said centerline, to the northeast corner of said Section 13, said
northeast corner also being the southwest corner of said Section 7 and a point of intersection with the
centerline of 84th Avenue S.;
Thence continuing easterly along the south line of said Section 7, crossing said 84th Avenue S., to an
intersection with the easterly right of way margin of said 84th Avenue S.;
Thence northerly along said easterly right of way margin, to an intersection with the south line of the
north 125 feet of the south 270 feet of the west half of the Southwest quarter of the Southwest quarter of
said Section 7;
Thence easterly along said south line, a distance of 98 feet, to an intersection with the east line of the west
128 feet of said subdivision;
Thence northerly along said east line, to the north line of said south 270 feet of said subdivision;
Thence easterly along said north line, to the southwest corner of Lot 2 of City of Renton Short Plat No.
023-87, as recorded under King County Recording No. 8712299017, Records of King County,
Washington;
Thence northerly along the west line of said Lot 2 and the existing City limits of Renton as annexed by
Ordinance No. 3801, to the southeast corner of Lot 1 of said short plat;
Thence westerly along the south line of said Lot 1 and said existing City limits, to the southwest corner
thereof, said southwest corner being a point on the easterly right of way margin of said 84th Avenue S.;
Thence northerly along the west line of said Lot 1 and said existing City limits and said easterly right of
way margin, to the northwest corner thereof;
Thence continuing northerly along said easterly right of way margin and the existing City limits of
Renton as annexed by Ordinance No. 1669, to the southwest corner of Lot 3, Block A of Conner’s Lake
View Park No. 2, as recorded in Volume 78 of Plats, Page 64, Records of King County, Washington;
Thence continuing northerly along the west line of said plat, said easterly right of way margin and said
existing City limits, to the northwest corner of said plat;
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Thence easterly along the north line of said plat and said existing City limits, to an intersection with the
southerly extension of the west line of Lot A of King County Boundary Line Adjustment No. L96L0145,
as recorded under King County Recording No. 9704091385, Records of King County, Washington;
Thence northerly along said extension and the west line of Lots A and B of said boundary line
adjustment, to the northwest corner of said Lot B;
Thence easterly along the north line of said Lot B and the easterly extension of said Lot B, crossing
Stevens Avenue NW (87th Avenue S.), to an intersection with the easterly right of way margin of said
Stevens Avenue NW, said intersection being a point on the existing City limits of Renton as annexed by
Ordinance No. 1461;
Thence northerly along said easterly right of way margin and existing City limits, crossing Taylor Place
NW, to the northwest corner of Lot 3, Block 1 of Latimers Lake Park Addition, as recorded in Volume 18
of Plats, Page 63, Records of King County, Washington;
Thence easterly along the north line of said Lot 3 and its easterly extension, crossing Lind Avenue NW,
to the southwest corner of Lot 2, Block 14 of said plat;
Thence northerly along the west line of said Lot 2 and along the west line of Lot 1 of said Block 14, to the
northwest corner of said Lot 1, said northwest corner also being a point on the southerly right of way
margin of NW 7th Street (S. 122nd Street);
Thence easterly along said southerly right of way margin and said existing City limits, crossing Taylor
Avenue NW, to the northwest corner of Lot 1, Block 16 of said plat;
Thence northerly along the northerly extension of the west line of said Lot 1, to the centerline of that
portion of NW 7th Street vacated under City of Renton Vacation Ordinance No. 3455;
Thence easterly along said centerline, to an intersection with the westerly right of way margin of Rainier
Avenue North;
Thence northerly along said westerly right of way margin, crossing S. 121st Street, to the northeast corner
of Lot 11 of Lenz Farmette Tracts, as recorded in Volume 37 of Plats, Page 36, Records of King County,
Washington;
Thence easterly along the easterly extension of the north line of said Lot 11, crossing Rainier Avenue
North, to an intersection with the easterly right of way margin of said Rainier Avenue North;
Thence northerly along said easterly right of way margin, following the tangent and curving courses
thereof, said easterly right of way margin being, in part, the existing City limits of Renton as annexed by
Ordinance No. 1300, to an intersection with a line which is 5 feet south of and parallel with the common
line between Lots 7 and 8, Block 18, Bryn Mawr , as recorded in Volume 5 of Plats, Page 58, Records of
King County, Washington;
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Thence South 88°27’28” East, along said parallel line and said existing City limits, a distance of 89.23
feet, to the west line of the Defense Plant Corp. 5-24-43;
Thence North 05°16’51” East, along said existing City limits, a distance of 438.90 feet, to an intersection
with a line which is 2 feet south of and parallel with the common line between Lots 1 and 2, Block 17 of
said plat;
Thence North 40°09’47” East, along said existing City limits, a distance of 188.55 feet;
Thence North, along said existing City limits, a distance of 60 feet;
Thence North 29°00’40” West, along said existing City limits, a distance of 197.07 feet;
Thence South 88°27’28” East, along said existing City limits, a distance of 355.00 feet, to a point on the
Inner Harbor Line of Lake Washington, as shown upon Sheet No. 26 of the Plat of Lake Washington
Shore Lands Survey 1921, said plat being filed with the Auditor of King County, Washington, September
19, 1921, under Recording Number 1552504, said point being a distance of 92.62 feet along said Inner
Harbor Line from angle point “862” on said plat, and the terminus of said sewer service area boundary
line.
EXHIBIT E
Existing SWSD Water Service Connections in RENTON Service Area:
ADDRESS KING COUNTY PARCEL NUMBER
8543 S 124th Street i.e., King County tax lot 072305-9049
12424 84th Avenue S i.e., King County tax lot 072305-9058
12620 84th Avenue S i.e., King County tax lot 072305-9061
12426 84th Avenue S i.e., King County tax lot 072305-9068
8423 S 124th Street i.e., King County tax lot 072305-9069
8547 S 124th Street i.e., King County tax lot 072305-9072
8539 S 124th Street i.e., King County tax lot 072305-9073
12422 84th Avenue S i.e., King County tax lot 072305-9074
8435 S 124th Street i.e., King County tax lot 072305-9075
12540 84th Avenue S i.e., King County tax lot 072305-9077
8537 S 124th Street i.e., King County tax lot 072305-9081
8428 S 124th Street i.e., King County tax lot 072305-9088
12200 85th Avenue S i.e., King County tax lot 118000-5471
12117 87th Avenue S i.e., King County tax lot 118000-5520
12116 85th Avenue S i.e., King County tax lot 118000-5600
12121 87th Avenue S i.e., King County tax lot 118000-5601
12133 87th Avenue S i.e., King County tax lot 118000-6780
12308 85th Avenue S i.e., King County tax lot 118000-6890
8556 S 123rd Place i.e., King County tax lot 118000-6980
8550 S 123rd Place i.e., King County tax lot 118000-6990
8544 S 123rd Place i.e., King County tax lot 118000-7005
8540 S 123rd Place i.e., King County tax lot 118000-7015
8532 S 123rd Place i.e., King County tax lot 118000-7026
8524 S 123rd Place i.e., King County tax lot 118000-7036
8518 S 123rd Place i.e., King County tax lot 118000-7045
12320 85th Avenue S i.e., King County tax lot 118000-7055
12314 85th Avenue S i.e., King County tax lot 118000-7056
vacant i.e., King County tax lot 118000-8225
8525 S 123rd Place i.e., King County tax lot 118000-8235
8529 S 123rd Place i.e., King County tax lot 118000-8245
8535 S 123rd Place i.e., King County tax lot 118000-8255
8541 S 123rd Place i.e., King County tax lot 118000-8265
8547 S 123rd Place i.e., King County tax lot 118000-8270
8553 S 123rd Place i.e., King County tax lot 118000-8275
8554 S 124th Street i.e., King County tax lot 118000-8290
8548 S 124th Street i.e., King County tax lot 118000-8295
8542 S 124th Street i.e., King County tax lot 118000-8315
EXHIBIT E
8536 S 124th Street i.e., King County tax lot 118000-8325
8530 S 124th Street i.e., King County tax lot 118000-8335
8524 S 124th Street i.e., King County tax lot 118000-8345
8518 S 124th Street i.e., King County tax lot 118000-8355
12820 84th Avenue S i.e., King County tax lot 182305-9204
12811 84th Avenue S i.e., King County tax lot 214480-0005
12823 84th Avenue S i.e., King County tax lot 214480-0006
12819 84th Avenue S i.e., King County tax lot 214480-0007
12852 80th Avenue S i.e., King County tax lot 214480-0225
7830 S Langston Road i.e., King County tax lot 214480-0336
7840 S Langston Road i.e., King County tax lot 214480-0341
7835 S 130th Street i.e., King County tax lot 214480-0342
7931 S 130th Street i.e., King County tax lot 214480-0345
8531 S 124th Street i.e., King County tax lot 796140-0025
EXHIBIT F
Existing RENTON Water Service Connections in SWSD Service Area:
ADDRESS KING COUNTY PARCEL NUMBER
8231 S 121st Street i.e., King County tax lot 118000-5795
8246 S 122nd Street i.e., King County tax lot 118000-5850
8324 S 122nd Street i.e., King County tax lot 118000-5855
8240 S 122nd Street i.e., King County tax lot 118000-5880
8232 S 122nd Street i.e., King County tax lot 118000-5890
8222 S 122nd Street i.e., King County tax lot 118000-5900
8218 S 122nd Street i.e., King County tax lot 118000-5910
8208 S 122nd Street i.e., King County tax lot 118000-5915
Vacant i.e., King County tax lot 118000-5930
12209 82nd Avenue S i.e., King County tax lot 118000-6230
Vacant i.e., King County tax lot 118000-6250
Vacant i.e., King County tax lot 118000-6350
8207 S 122nd Street i.e., King County tax lot 118000-6360
8217 S 122nd Street i.e., King County tax lot 118000-6375
8223 S 122nd Street i.e., King County tax lot 118000-6390
8239 S 122nd Street i.e., King County tax lot 118000-6405
8241 S 122nd Street i.e., King County tax lot 118000-6415
8247 S 122nd Street i.e., King County tax lot 118000-6425
8323 S 122nd Street i.e., King County tax lot 118000-6445
8254 S 123rd Street i.e., King County tax lot 118000-6460
8246 S 123rd Street i.e., King County tax lot 118000-6475
8240 S 123rd Street i.e., King County tax lot 118000-6477
8228 S 123rd Street i.e., King County tax lot 118000-6500
8220 S 123rd Street i.e., King County tax lot 118000-6520
8214 S 123rd Street i.e., King County tax lot 118000-6530
8202 S 123rd Street i.e., King County tax lot 118000-6550
12202 84th Avenue S i.e., King County tax lot 118000-6560
8411 S 122nd Street i.e., King County tax lot 118000-6570
Vacant i.e., King County tax lot 118000-6650
Vacant i.e., King County tax lot 118000-6660
8412 S 123rd Street i.e., King County tax lot 118000-6670
12212 84th Avenue S i.e., King County tax lot 118000-6685
12300 84th Avenue S i.e., King County tax lot 118000-7080
8411 S 123rd Street i.e., King County tax lot 118000-7095
Vacant i.e., King County tax lot 118000-7105
8432 S 123rd Street i.e., King County tax lot 118000-7106
12309 85th Avenue S i.e., King County tax lot 118000-7108
EXHIBIT F
8438 S 123rd Place i.e., King County tax lot 118000-7120
8426 S 123rd Place i.e., King County tax lot 118000-7140
8416 S 123rd Place i.e., King County tax lot 118000-7185
12312 84th Avenue S i.e., King County tax lot 118000-7200
8410 S 123rd Place i.e., King County tax lot 118000-7210
Vacant i.e., King County tax lot 118000-7220
8211 S 123rd Street i.e., King County tax lot 118000-7230
8217 S 123rd Street i.e., King County tax lot 118000-7245
8223 S 123rd Street i.e., King County tax lot 118000-7255
8241 S 123rd Street i.e., King County tax lot 118000-7265
8229 S 123rd Street i.e., King County tax lot 118000-7275
8235 S 123rd Street i.e., King County tax lot 118000-7285
12309 84th Avenue S i.e., King County tax lot 118000-7295
12315 84th Avenue S i.e., King County tax lot 118000-7300
12311 84th Avenue S i.e., King County tax lot 118000-7315
vacant i.e., King County tax lot 118000-7316
8230 S 123rd Place i.e., King County tax lot 118000-7375
8222 S 123rd Place i.e., King County tax lot 118000-7405
8216 S 123rd Place i.e., King County tax lot 118000-7410
8210 S 123rd Place i.e., King County tax lot 118000-7415
8200 S 123rd Place i.e., King County tax lot 118000-7420
8205 S 123rd Place i.e., King County tax lot 118000-7850
8211 S 123rd Place i.e., King County tax lot 118000-7865
8223 S 123rd Place i.e., King County tax lot 118000-7875
8217 S 123rd Place i.e., King County tax lot 118000-7880
8233 S 123rd Place i.e., King County tax lot 118000-7900
8243 S 123rd Street i.e., King County tax lot 118000-7915
12333 84th Avenue S i.e., King County tax lot 118000-7931
12408 84th Avenue S i.e., King County tax lot 118000-8060
8409 S 123rd Place i.e., King County tax lot 118000-8070
8415 S 123rd Place i.e., King County tax lot 118000-8080
8427 S 123rd Place i.e., King County tax lot 118000-8090
12323 85th Avenue S i.e., King County tax lot 118000-8105
AGREEMENT FOR THE SALE OF WATER
IN AN EMERGENCY BY
THE CITY OF RENTON TO THE CITY OF SEATTLE
This AGREEMENT made and entered into this _30th day of _November_, 2002, by
the CITY OF RENTON, a municipal corporation of the State of Washington, hereinafter
called "RENTON" and the CITY OF SEATTLE, a municipal corporation of the State of
Washington, acting through Seattle Public Utilities, hereinafter called "SEATTLE".
WHEREAS, SEATTLE and RENTON have existing interties between their water
systems;
WHEREAS, SEATTLE sometimes experiences a Spring water supply shortage due
to low snowpack, precipitation and inflows in the Cedar and Tolt River watersheds, or, a hot
Summer with high water consumption coupled with a delay in usual Fall rains;
WHEREAS, SEATTLE may also experience other types of emergency situations
that call for an augmentation of its water supply, such as a transmission pipeline break or
an episode of high turbidity in one of its reservoirs;
WHEREAS, RENTON, in the spirit of intergovernmental cooperation during such
water supply emergencies, is willing to sell an increment of water to SEATTLE when
available during non-peak periods;
WHEREAS, SEATTLE is willing to sell water to RENTON to allow RENTON's
ground water aquifer to recharge, when water is available following a water shortage
emergency; and,
WHEREAS, the parties desire to enter into an AGREEMENT providing for the sale
of water in an emergency from RENTON to SEATTLE, and for the subsequent sale of an
equivalent amount of water from SEATTLE to RENTON, if necessary, to allow recharge of
RENTON's Aquifer.
NOW THEREFORE, IT IS AGREED AS FOLLOWS:
1) Term of AGREEMENT. The effective date of this AGREEMENT shall be
_____________________, 2002. The AGREEMENT shall be in effect until
December 31, 2011, unless terminated by either party in accordance with Section
17 of this AGREEMENT. The rates and quantities of water sold are set forth in
Sections (2), (8), and (11).
2) Sale Price of Renton Water. SEATTLE shall pay to RENTON for all water delivered
$1.30 per 100 cubic feet, which is a special wholesale rate for 2002; and revised
each year during the term of the agreement. The rates charged by RENTON are
based on RENTON's analysis of cost of providing non-peaking service to Seattle
under the conditions stated herein. This rate was calculated using the American
Water Works Association (AWWA) "Base Extra Capacity" method of rate analysis.
The rate charged to SEATTLE shall be adjusted each year using the AWWA "Base
Extra Capacity" method and RENTON's retail water rate for each year.
Agreement for the Sale of Water in an Emergency by the City of Renton to the City of Seattle
Page 2 of 5
3) Location of Interties: This Agreement is limited to the two (2) intertie locations
described as follows: Tiffany Park Pump Station Interties located at the intersection
of Kirkland Avenue SE and the Cedar River Pipeline right-of-way (Section 21
Township 23 Range 5); and Union Avenue Intertie, located at the intersection of
Union Avenue SE and SE 2nd Street (Section 16 Township 23 Range 5). The
physical arrangement of the interties is shown in Exhibits 1 and 2.
4) Metering. SEATTLE shall provide, and RENTON shall own and maintain, an
appropriate metering device to measure the water flowing from RENTON's system
into SEATTLE's system at the point of service connection. Additional metering
equipment approved by RENTON to transmit signals to RENTON's recording
equipment located elsewhere shall be provided as determined by RENTON, all at
SEATTLE's expense.
5) Meter Charge. A monthly meter charge shall be paid by SEATTLE in accordance
with the meter charges as stated in RENTON's City Code at the time the meter is in
service.
6) Priority and Continuity of Service. The determination of whether water is available
for SEATTLE shall be at the sole discretion of RENTON. In the event of a condition
requiring restrictions on the delivery of water, RENTON shall have the right to
restrict or interrupt service to SEATTLE. RENTON may voluntarily interrupt or
reduce deliveries of water to SEATTLE if RENTON determines that such
interruption or reduction is necessary or reasonable. Except in cases of emergency
and in order that SEATTLE's operations will not be unreasonably interfered with,
RENTON shall give SEATTLE reasonable notice of any such interruption or
reduction, the reason therefor, and the probable duration thereof. SEATTLE shall
discontinue or reduce service from RENTON upon reasonable notice to RENTON.
Service shall be reactivated or increased again subject to the aforementioned
conditions.
7) Water Quality. The quality of water delivered under this AGREEMENT shall comply
with all applicable provisions of State and Federal law and rules and regulations of
the appropriate State agency governing water quality. In addition to the above
requirements, RENTON agrees to deliver water which shall be of no less quality
than is delivered to its customers throughout the RENTON service area. Prior to
any delivery of water, information on current water quality will be provided to the
receiving party so that blending, compatibility and other water quality issues can be
evaluated and addressed.
(8) Quantity of Water. Depending upon water availability in the RENTON system,
RENTON shall make available for purchase by SEATTLE up to the approximate
amount of two million (2,000,000) gallons per day from the existing emergency
intertie located at the Tiffany Park Pump Station. The rate of delivery of water from
Tiffany Park Pump Station system to SEATTLE's system shall vary between zero
and approximately 1,400 gallons per minute. Also in the fall and winter RENTON
may make available an additional amount up to approximately three and one-half
million (3,500,000) gallons per day from the intertie at Union Avenue SE and SE
2nd Street. The rate of delivery of water from this intertie shall vary between zero
and approximately 2,400 gallons per minute.
Agreement for the Sale of Water in an Emergency by the City of Renton to the City of Seattle
Page 3 of 5
9) Miscellaneous Control Devices. RENTON reserves the right to require SEATTLE to
install, as a condition of water service, pressure reducing valves, backflow
preventative devices, pressure relief valves, back-pressure sustaining valves,
pipeline flow limiting devices or similar devices at locations where RENTON
determines a need to protect its facilities.
10) Coordination and Project Management.
A) Operations:
For the purpose of operating the interties between RENTON and SEATTLE,
coordination shall occur between representatives of the systems, who are:
Ms. Lys Hornsby, City of Renton
and
Mr. George Schneider, City of Seattle
(or their designated representatives or replacements).
The coordination shall consist of exchanging operational information such as the
interties used, the respective flow rates, back-pressure sustaining valve setpoints,
system pressure effects, water quality characteristics, and other operational
information as necessary to accomplish the purposes of this AGREEMENT while
maintaining safe operation of both systems.
B. Engineering:
For the purposes of coordinating engineering issues regarding the RENTON and
SEATTLE interties, the following personnel shall be the designated representatives:
Ms. Lys Hornsby, City of Renton
and
Mr. George Schneider, City of Seattle
(or their designated representatives or replacements)
The engineering issues addressed shall include operational criteria as well as
hydraulic behavior, water quality considerations, and other appropriate engineering
issues.
C. Administration:
For the purposes of AGREEMENT administration and AGREEMENT modifications
or interpretations, the following personnel shall be the designated representatives:
Ms. Lys Hornsby, City of Renton
and
Mr. George Schneider, City of Seattle
(or their designated representatives or replacements)
Agreement for the Sale of Water in an Emergency by the City of Renton to the City of Seattle
Page 4 of 5
11) RENTON's Aquifer Recharge. It is recognized that runoff into SEATTLE's surface
water storage facilities generally exceeds the storage capacity during the winter and
spring months. It may be necessary, due to RENTON supplying water to
SEATTLE, to allow RENTON's aquifer to recharge during the winter and spring
months. Following a water shortage emergency and recovery of SEATTLE's water
system impoundments on the Cedar and Tolt Rivers, SEATTLE will sell water to
Renton. The water sale will be based on availability at the intertie locations
between SEATTLE and RENTON's systems and at such flow rate as is available
from the intertie location during the following winter or spring. The quantity of
SEATTLE's water, made available for allowing RENTON's Aquifer to recharge, shall
not exceed the quantity of water that was supplied by RENTON to SEATTLE during
the water shortage emergency. SEATTLE will sell the water to RENTON at $0.77
per 100 cubic-feet which is SEATTLE's non-peak, old water rate charged by
SEATTLE to its purveyors in 2002. This rate shall be revised each year during the
term of the agreement. This flow rate, quantity and price is an integral part of this
AGREEMENT and should not be considered as a precedent in possible future water
sales to RENTON or to other existing or future wholesale customers.
The determination of whether water is available for RENTON, to allow RENTON's
Aquifer to recharge, shall be at the sole discretion of SEATTLE. SEATTLE may
voluntarily interrupt or reduce delivery of said water, providing that such interruption
or reduction is necessary or reasonable. Except in cases of emergency, and in
order that Renton's operations will not be unreasonably interfered with, SEATTLE
shall give RENTON reasonable notice of such interruptions or reduction, the reason
therefor, and the probable duration thereof.
12) Payment. The party supplying water shall read the meter once each month at
approximately thirty (30) day intervals. Payment shall be made by the party
receiving water as soon as possible after receipt of statement from the party
supplying water, and in any event, not later than the tenth (10) of the second month
following the presentation of the bill.
In the event a meter shall fail to register or obviously register incorrectly, the amount
of water considered delivered through said meter shall be the amount delivered the
previous day or the last day that the meter was previously known to be properly
functioning and the total amount registered shall be pro-rated based on the number
of days multiplied times the reading used.
13) Penalties For Late Payment. The party supplying water may assess a late charge
on the party receiving water for failure to comply with the provisions in Section (12).
This charge shall be at the rate of twelve percent (12%) per year. In the event that
the party receiving water should fail to make any payment for a period of sixty (60)
days after the same becomes due, the party supplying water shall have the right to
terminate further water service until such delinquency is cured.
14) Procedure for Amending the Contract. Either party can request the other to
consider an amendment of the AGREEMENT. Any proposed amendments shall be
made in writing. Amendments may be made if they are mutually acceptable to
RENTON and SEATTLE and signed by both parties.
Agreement for the Sale of Water in an Emergency by the City of Renton to the City of Seattle
Page 5 of 5
15) Access to Facilities and Records. Each party shall be entitled to inspect the
facilities of the other at any reasonable time. Both parties agree to make mutually
available such information or records as are at their disposal and as may be
reasonably necessary to properly implement any section of this AGREEMENT.
16) Non-Assignability. Neither this AGREEMENT nor any interest therein shall be
transferred or assigned by SEATTLE without prior written consent of RENTON.
17) Termination. This AGREEMENT may be terminated in whole or in part by either
party any time after one year from the date of this AGREEMENT, upon ten (10)
days written notice sent by certified mail to the other party.
IN WITNESS WHEREOF, the parties have hereunto set their hands this day and year
above written.
CITY OF RENTON CITY OF SEATTLE
By:__________________________________ By: ________________________________
Jesse Tanner, Mayor Chuck Clarke,
Director of Seattle Public Utilities
ATTEST/AUTHENTICATED: ATTEST/AUTHENTICATED:
_____________________________________ ___________________________________
Bonnie I. Walton, City Clerk Judith Pippin, City Clerk
APPROVED AS TO LEGAL FORM:
_____________________________________
Larry Warren, City Attorney
Emergency_water_supply_contract.DOC
H/FILESYS/WTR-11-0012
Appendix E
WATER RIGHTS DOCUMENTS
STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
SUPERSEDING PERMIT
TO APIROPRIATE PUBLIC WATERS OF THE STATE OF WASHINGTON
Surface Water (Issued tn accordance svitlt the provisions of Chapter t 17,Laws ofWashington for t9t7,and
amendments thereto,and the rules and regulations ofthe Department of Ecology)
Ground \Vater (Issued in accordance with the provisions ofChapter 263.Laws olWashington for 945,and
amendments thereto,and the niles and regulations of the Dcpart,nent ofEcology)
PRIORITY DATE APPLICATION NUMBER PERMIT NUMBER CERTIFICATE NUMBER
January 2,1986 Gl-24781 G1-24781P
NAIvIE
City of Renton Public Works
ADDRESS (STREET)(CITY)(STATE)(ZIP CODE)
1055 South Grady Way Renton WA 98057
ilte applicant is hereby granted a permit to appropriate theIn/lotting public st’alers oftlte Slate of Washington,subject to exismtg rigltts and to the Iintitation,c and provisions set
herein.
PUBLIC WATERS TO BE APPROPRIATED
SOURCE
Well #1 1
TRIBUTARY OF (IF SURFACE WATERS)
MAXIMUM CUBIC FEET PER SECOND MAXIMUM GALLONS PER MINUTE MAXIMUM ACRE FEET PER YEAR
1600 1792*
QUANTITY,TYPE OF USE,PERIOD OF USE
Municipal supply
*yearly quantity is already covered by existing rights totaling 14,809 acre-feet.Use from all sources shall not exceed 14,809
acre-feet.
LOCATION OF DIVERSION/WITHDRAWAL
APPROXIMATE LOCATION OF DIVERSION--WITHDRAWAL
500 feet west and 450 feet south from the northeast corner of Section 21.
LOCATED WITHIN (SMALLEST LEGAL SUBDIVISION)SECTION TOWNSHIP N RANGE,)E.OR \V )W El V RI A COUNTY
NE1/4NE1/4 21 23N 5E 8 King
RECORDED PLATTED PROPERTY
LOT BLOCK OF (GIVE NAME OF PLAT OR ADDITION)
.LEGAL DESCRIPTION OF PROPERTY ON WHICH WATER IS TO BE USED
City of Renton Municipal Water Supply service area within Township 23 north,Range 4 and 5 east and Township 24 north,Range 5 east
along with wholesale water to Lakeridge/Bryn-Mawr Water District through an intertie.Emergency interties for exchange of water exists
between Renton and the following service areas:Seattle and Kent.
___________________________
DESCRIPTION OF PROPOSED WORKS
Well 345 feet deep,16-inch diameter
Static water level 11 feet below top of well
Connection to reservoirs
DEVELOPMENT SCHEDULE
BEGIN PROJECT BY THiS DATE.COMPLETE PROJECT BY Tills DATE.WATER PUTTO FULL USE BY THIS DATE.
Completed Completed September 30,2021
SUPERSEDING PERMIT
PROViSIONS
Totalannualwithdrawalfromthisallocation(Gl-24781)andallrightsheldbyRentonshallnotexceed14,809acre-feet.
AnapprovedmeasuringdeviceshallbeinstalledandmaintainedinaccordancewithRCW90.03.360,WAC508-64-020throughWAC508-
64-040andasupdated.MeterreadingsshallberecordedmonthlyandthisdatashallbemaintainedandbemadeavailabletotheDepartmentof
Ecologyuponrequest.
Staticwaterlevel(SWL)shallbemeasuredatleastonceeachmonth.Measurementsshallbetakenaflerthepumphasbeenshutoffandthe
waterlevelinthewellhasbeenstabilized.ThedatashallbemaintainedandmadeavailabletoEcologyuponrequest.However,Ecology’s
WaterResourcesSection(NWRO)shallbenotifiediftheSWLisdetemiinedtobebelowthelevelnormallyrecordedatthattimeofyear.
RentonshallmonitortheshallowandintennediateaquifersatleastmonthlytodeterminethebestapproachformaintainingCedarRiverflows
inthereachassociatedwiththeMaplewoodGolfCourseaquifers.
TheUSGSgage12119000(locatedindowntownRenton)shallbepermanentlymaintained.
Priortousingtheinstantaneousportionofthiswaterrightasadditivetoexistingrights,amanagementplanshallbesubmittedtoNWROWater
Resourcesandapproved.Themanagementplanshallprovidedetailedproceduresformonitoring,pumping,andassuringthatinstrearnflowsin
theCedarRiverwillnotbeimpairedbypumping.
AnestimateofwaterconservationsavingsasapercentreductioninaveragedailypercapitaconsumptionshallbeprovidedtoNWROWater
Resources.Thisestimateofwaterconservationsavingswillbereplacedbyevidenceofactualwaterusereductionbeforeafinalwaterright
certificatewillbeissuedbytheDepartment.
Acertificateofwaterrightwillnotbeissueduntilafinalinvestigationismade.AspartoftheinvestigationRentonshallsubmitcollecteddata.
Thispermitshallbesubjecttocancellationshouldthepennitteefrilltocomplyii’iththeabovedevelopmentscheduleand/orfail
togivenoticetotheDepartmentofEcoloD’onformsprovidedbythatDepartmentdocumentingsuchcompliance.
Givenundermyhandandthesealof/hisofficeatBellevue,Washington,thisayof2011.
DepartmentoEco1ogy
REVIEWEDBY
OKAY(_)
By
_
.JerryL.Lisak,ActingSectionManager,WaterResources
SUPERSEDINGPERMIT2G1-24781
rPE
NOV 0 4 20fl
CITY OF RENTON
STATE OF WASHINGTON UTILITY SYSTEMS
DEPARTMENT OF ECOLOGY
Northwest Regional Office •3190 160th Ave SE •Bellevue,WA 98008-5452 •425-649-7000
711 for Washington Relay Service •Persons with a speech disability can call 877-833-6341
NOV 032011
Lys Homsby
Utility Systems Director
City of Renton
1055 South Grady Way
RentonWA 98057
Re:Water Right No.G1-24781P
Dear Lys Hornsby:
Enclosed is your Superseding Permit to be retained for your records.Please read the
enclosed information sheet,as well as your entire superseding permit.
You must meet the provisions of your superseding permit before we will issue a final
Certflcate of Water Right.
Our information indicates your system has been completed.We are enclosing a Proofof
Appropriation of Waterform which is to be filed when the water has actually been put to
full beneficial use.This form will need to include your County Assessor’s Parcel
Number and must be notarized.
If you cannot put the water to full beneficial use by September 30,2021:
•You y submit the Proof ofAppropriation for a lesser quantity,or
•You must contact this office to apply for an extension.
If you have any questions,please contact Jerry Liszak at 425-649-7013.
Sinely,
4t
Jerry L.Liszak
Acting Section Manager
Water Resources Program
JL/ng
Enclosures:Superseding Permit
Proof of Appropriation of Water
Important Information About Your Water Right *
STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
SUPERSEDING PERMIT
TO APPROPRIATE PUBLIC WATERS OF TI-IE STATE OF WASHINGTON
Surface Water (Issued in accordance with the provisions afChapter 117,Laws of Washington for 1917,and
amendments thereto,and the rules and regulations of the Department ofEcalogy)
Ground Water (Issued in accordance with the provisions of Cltapter 263,Laws ofWashington for 1945,and
-ansendmnents thereto,and the niles and regulations ofthe DepartmentofEcology
PRIORITY DATE APPLICATION NUMBER PERMIT NUMBER CERTIFICATE NUMBER
January 2,1986 Gl-24782 G1-24782P
NAME
City of Renton Public Works
ADDRESS (STREET)(CITY)(STATE)(ZIP CODE)
1055 South Grady Way Renton WA 98057
T/te applicant is hereby granted a penn/I (a appropriate the,fol/ott’ing public n’ute,s of/he State /‘Washington.subject to existing rights and to the limitations and prot’islans set
herein.
PUBLIC WATERS TO BE APPROPRIATED
SOURCE
Well #12
TRIBUTARY OF (IF SURFACE WATERS)
MAXIMUM CUBIC FEET PERSECOND MAXIMUM GALLONS PER MINUTE MAXIMUM ACRE FEET PER YEAR
1600 1792*
QUANTITY,TYPE OF USE,PERIOD OF USE
Municipalsupply
*Total annual withdrawal from this allocation and all rights held by Renton shall not exceed 14,809 acre-feet.
LOCATION OF DIVERSION/WITHDRAWAL
APPROXIMATE LOCATION OF DIVERSION--WITHDRAWAL
LOCATED WITI-Ifl’l (SMALLEST LEGAL SUBDIVISION)SECTION TOWNSHIP N RANGE,(EOR W )W M W R I A.COUNTY
SEI/4 SEI/4 16 23N SE 8 King
RECORDED PLATTED PROPERTY
LOT BLOCK OF (GIVE NAME OF FLAT OR ADDITION)
LEGAL DESCRIPTION OF PROPERTY ON WHICH WATER IS TO BE USED
City ofRenton Municipal Water Supply service area within Township 23 north,Range 4 and 5 east and Township 24 north,Range S east
along with wholesale water to Lakeridge/Bryn-Mawr Water District through an intertie.Emergency interties for exchange of water exists
between Renton and the following service areas:Seattle and Kent.
DESCRIPTION OF PROPOSED WORKS
DEVELOPMENT SCHEDULE
BEGIN PROJECT BY TIllS DATE COMPLETE PROJECT BY THIS DATE WATER PUTTO FULL USE BY THIS DATE.
Completed Completed September 30,2021
SUPERSEDING PERMIT
PROVISIONS
Totalannualwithdrawalfiomthisallocation(G1-24782)andallrightsheldbyRentonshallnotexceed14,809acre-feet.
Theamountofwatergrantedisamaximumlimitthatshallnotbeexceededandthewaterusershallbeentitledonlytothatamountofwater
withinthespecifiedlimitthatisbeneficiallyused.
InstallationandmaintenanceofanaccessportasdescribedinGroundWalerBulletinNo.Iisrequired.Anairlineandgaugemaybeinstalled
inadditiontotheaccessport.
AllwaterwellsconstructedwithinthestateshallmeettheminimumstandardsforconstructionandmaintenanceasprovidedunderRCW
18.104(WashingtonWellConstructionActof1971)andChapter173-160WAC(MinimumStandardsforConstructionandMaintenanceof
WaterWells).
Staticwaterlevel(SWL)shallbemeasuredatleastonceeachmonth.Measurementsshallbetakenafterthepumphasbeenshutoffandthe
waterlevelinthewellhasbeenstabilized.ThedatashallbemaintainedandmadeavailabletoEcologyuponrequest.However,Ecology’s
WaterResourcesSection(NWRO)shallbenotifiediftheSWLisdeterminedtobebelowthelevelnormallyrecordedatthattimeofyear.
AnapprovedmeasuringdeviceshallbeinstalledandmaintainedinaccordancewithRCW90.03.360,WAC508-64-020throughWAC508-
64-040andasupdated.MeterreadingsshallberecordedmonthlyandthisdatashallbemaintainedandbemadeavailabletotheDepartmentof
Ecologyuponrequest.
RentonshallmonitortheshallowandintermediateaquifersatleastmonthlytodeterminethebestapproachformaintainingCedarRiverflows
inthereachassociatedwiththeMaplewoodGolfCourseaquifers.
TheUSGSgage12119000(locatedindowntownRenton)shallbepermanentlymaintained.
Priortousingtheinstantaneousportionofthiswaterrightasadditivetoexistingrights,amanagementplanshallbesubmittedtoNWROWater
Resourcesandapproved.Themanagementplanshallprovidedetailedproceduresformonitoring,pumping,andassuringthatinstreamflowsin
theCedarRiverwillnotbeimpairedbypumping.
AnestimateofwaterconservationsavingsasapercentreductioninaveragedailypercapitaconsumptionshallbeprovidedtoNWROWater
Resources.Thisestimateofwaterconservationsavingswillbereplacedbyevidenceofactualwaterusereductionbeforeafinalwaterright
certificatewillbeissuedbytheDepartment.
Acertificateofwaterrightwillnotbeissueduntilafinalinvestigationismade.AspartoftheinvestigationRentonshallsubmitcollecteddata.
Thispermitshallbesubjecttocancellationshouldthepermitteefailtocomplywiththeabovedevelopmentscheduleand/orfail
togivenoticetotileDepartmentofEcoloon/lirinsprovidedbythatDepartmentdocumentingsue/icompliance.
A)
Givenundermyhandandthesealoftillsof/IceatBellevue,Washington,tills>dayof,2011.
DepartmentofEcology
By
_______________
JerL.Liszak’AclingectionManager,WaterResources
SUPERSEDINGPERMIT2Gl-24782
RECEIVED
NOV 0 4 2Q11
CITY OF RENTON
STATE OF WASHINGTON UTILiTY SYSTEMS
DEPARTMENT OF ECOLOGY
Northwest Regional Office •3190 160th Ave SE •Bellevue,WA 98008-5452 •425-649-7000
711 for Washington Relay Service •Persons with a speech disability can call 877-833-6341
NOV 03 2011
Lys Hornsby
Utility Systems Director
City of Renton
1055 South Grady Way
Renton WA 98057
Re:Water Right No.G1-25396P
Dear Lys Homsby:
Enclosed is your Superseding Permit to be retained for your records.Please read the
enclosed information sheet,as well as your entire superseding permit.
You must meet the provisions of your superseding permit before we will issue a final
Certificate of Water Right.
Our information indicates your system has been completed.We are enclosing a Proofof
Appropriation of Waterform which is to be filed when the water has actually been put to
full beneficial use.This form will need to include your County Assessor’s Parcel
Number and must be notarized.
If you cannot put the water to full beneficial use by September 30,2021:
•You y submit the ProofofAppropriation for a lesser quantity.or
•You must contact this office to apply for an extension.
If you have any questions,please contact Jerry Liszak at 425-649-7013.
Sincrely,/
‘/*‘,/
Jry L Liszak
Acting Section Manager
Water Resources Program
JL/ng
Enclosures:Superseding Permit
Proof of Appropriation of Water
Important Information About Your Water Right 0
STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
SUPERSEDING PERMIT
TO APPROIRIATE PUBLIC WATERS OF TFIE STATE OF WASI-IINGTON
Surface Water (Issand in accordance with he provisions ofChapter I 17,Laws of Washington for 1917,and
irnendtnents thereto,and the rales and regulations ofthe Department ofEcology)
Ground Water (Issued in occordance with the provisions ofChapter 263,Lasvs of Washington for 1945,and
amendments thereto,and the rules and regulations ofthe Department of Ecology)
PRIORITY DATE APPLICATION NUMBER PERMIT NUMBER CERTIFICATE NUMBER
February 23,1989 G1-25396 G1-25396P
NAME
City of RentonPublic Works
ADDRESS(STREET)(CITY)(STATE)(ZIP CODE)
1055 South Grady Way Renton WA 98057
The applicant is Itereby g,’anted a perutit to appropriate tltefolloit’i,tg public hatersof the State of Wash,ngto,t,subject to exis!utg rights and to the lintitat,ons and provisio,ts set
herein.
PUBLIC WATERS TO BE APPROPRIATED
SOURCE
Well #1 1
TRIBUTARY OF (IF SURFACE WATERS)
MAXIMUM CUBIC FEETPER SECOND MAXIMUM GALLONS PERMINUTE MAXIMUM ACRE FEET PER YEAR
900 1008*
QUANTITY,TYPE OF USE.PERIODOF USE
Municipal supply
*Total annual withdrawal from this allocation and all rights held by Renton shall not exceed 14,809 acre-feet.
LOCATION OF DIVERSION/WITHDRAWAL
APPROXIMATE LOCATION OF DIVERSION--WITI IDRAWAL
500 feet west and 450 feet south from the northeast corner of Section 21
LOCATED WITI-IIN (SMALLEST LEGAL SUISDIVISION)SECTION TOWNSHIP N RANGE,(E.OR W)V El V R.I A.COUNTY
NE1/4NEI/4 21 23N ‘5E 8 King
RECORDED PLATTED PROPERTY
LOT BLOCK OF (GIVE NAME OF FLAT OR ADDITION)
LEGAL DESCRIPTION OF PROPERTY ON WHICH WATER IS TO BE USED
City of Renton Municipal Water Supply service area within Township 23 north,Range 4 and 5 east and Township 24 north,Range 5 east
along with wholesale water to Lakeridge/Bryn-Mawr Water District through an intertie.Emergency interties for exchange of water exists
between Renton and the following service areas:Seattle and Kent.
DESCRIPTION OF PROPOSED WORKS
Well 345 deep,16”diameter
Connection to reservoirs
DEVELOPMENT SCHEDULE
BEGIN PROJECT BY THIS DATE.COMPLETE PROJECT BY THIS DATE.WATER PUT 10 FULL USE BY TI(IS DATE.
Completed Completed September 30,2021
SUPERSEDING PERMIT
PROVISIONS
Totalannualwithdrawalfromthisallocation(G1-25396)andallrightsheldbyRentonshallnotexceed14,809acre-feet.
Staticwaterlevel(SWL)shallbemeasuredatleastonceeachmonth.Measurementsshallbetakenafterthepumphasbeenshutoffandthe
waterlevelinthew’ellhasbeenstabilized.ThedatashallbemaintainedandmadeavailabletoEcologyuponrequest.However,Ecology’s
WaterResourcesSection(NWRO)shallbenotifiediftheSWLisdeterminedtobebelowthelevelnoniallyrecordedatthattimeofyear.
AnapprovedmeasuringdeviceshallbeinstalledandmaintainedinaccordancewithRCW90.03.360,WAC508-64-020throughWAC508-
64-040andasupdated.MeterreadingsshallberecordedmonthlyandthisdatashallbemaintainedandbemadeavailabletotheDepartmentof
Ecologyuponrequest.
RentonshallmonitortheshallowandintermediateaquifersatleastmonthlytodeterminethebestapproachformaintainingCedarRiverflows
inthereachassociatedwiththeMaplewoodGolfCourseaquifers.
TheUSGSgage12119000(locatedindowntownRenton)shallbepermanentlymaintained.
Priortousingtheinstantaneousportionofthiswaterrightasadditivetoexistingrights,amanagementplanshallbesubmittedtoNWROWater
Resourcesandapproved.Themanagementplanshallprovidedetailedproceduresformonitoring,pumping,andassuringthatinstreamflowsin
theCedarRiverwillnotbeimpairedbypumping.
AnestimateofwaterconservationsavingsasapercentreductioninaveragedailypercapitaconsumptionshallbeprovidedtoNWROWater
Resources.Thisestimateofwaterconservationsavingswillbereplacedbyevidenceofactualwaterusereductionbeforeafinalwaterright
certificatewillbeissuedbytheDepartment.
Acertificateofwaterrightwillnotbeissueduntilafinalinvestigationismade.AspailoftheinvestigationRentonshallsubmitcollecteddata
tothisoffice.
Tinspermitshallbesubjecttocancellationshouldthepermnitteefailtocomplywiththeabovedevelopmentscheduleand/orfail
togivenoticetotheDepartmentofEcolo’onformnsprovidedbythatDepartmentdocumentingsuchcompliance.
•J)/1
GivenundermyhandandthesealofthisofficeatBellevue,Washington,this-dayof2011.
DepartmentofEcology
REVIEWEDDY/
OKAY.CJ By-
JerryL.Liszak,ActingSecti&iManager,WaterResources
SUPERSEDINGPERMIT2Gl-25396
RECEVD
NOV 0 4 2011
STATE OF WASHINGTON CTV OF RENTON
DEPARTMENT OF ECOLOGY UTILITYSYSTEMS
Northwest Regional Office •3190 160th Ave SE •Bellevue,WA 98008-5452 •425-649-7000
711 for Washington Relay Service •Persons with a speech disability can call 877-833-6341
NOV 03 2011
Lys Hornsby
Utility Systems Director
City of Renton
1055 South Grady Way
Renton WA 98057
Re:Water Right No.G1-25397P
Dear Lys Hornsby:
Enclosed is your Superseding Permit to be retained for your records.Please read the
enclosed information sheet,as well as your entire superseding permit.
You must meet the provisions of your superseding permit before we will issue a final
Certificate of Water Right.
Our information indicates your system has been completed.We are enclosing a Proofof
Appropriation of Water form which is to be filed when the water has actually been put to
full beneficial use.This form will need to include your County Assessor’s Parcel
Number and must be notarized.
If you cannot put the water to full beneficial use by September 30,2021:
•You submit the Proof ofAppropriation for a lesser quantity,or
•You must contact this office to apply for an extension.
If you have any questions,please contact Jerry Liszak at 425-649-7013.
Sincerely,
7),,c7_
f\5 y
Jrry IZ.Liszak
Acting Section Manager
Water Resources Program
JL/ng
Enclosures:Superseding Permit
Proof of Appropriation of Water
Important Information About Your Water Right 0
STATE OF WASHINGTON
DEPARTMENT OF ECOLOGY
SUPERSEDING PERMIT
TO APPROPRIATE PUBLIC WATERS OF TI-IE STATE OF WASHINGTON
Surface Water (Issued in accordance with tine provisions ofChapter 7,Laws of Washington for 1917,and
amendnnents thereto,and tine rules and regulations ofthe Depannient ofEcology)
Ground ‘Vater (Issued in accordance svgln the provisions ofC’hapter 2i,3,Laws of Washington for 1945,and
amendments thereto,arid the rules and regulationsofthe Department ofEcology
PRIORITY DATE APPLICATION NUMBER PERMIT NUMBER CERTIFICATE NUMBER
February 23,1989 Gl-25397 G1-25397P
NAME
City of Renton Public Works
ADDRESS (STREET)(CITY)(STATE)(ZIP CODE)
1055 South Grady Way Renton WA 98057
The applicant ishei’eby granteda perntu to appropriate thefollott’ingpublic waters ofthe State qi I Vasltington,subject to existing tights and to the hntitations and provisions set
he,’eui.
PUBLIC WATERS TO BE APPROPRIATED
SOURCE
Well #17
TRIBUTARY OF (IF SURFACE WATERS)
MAXIMUM CUBIC FEET PER SECOND MAXIMUMGALLONS PER MINUTE MAXIMUM ACRE FEET PER YEAR
1500 1680*
QUANTITY,TYPE OF USE,PERIOD OF USE
Municipal supply
*Total annual withdrawal from this allocation and all rights held by Renton shall not exceed 14,809 acre-feet.
LOCATION OF DIVERSION/WITHDRAWAL
APPROXIMATE LOCATION OF DIVERSION--WITI IDRAW’AL
450 feet west and 450 feet south from the northeast corner of Section 21
LOCATED \VITHIN (SMALLEST LEGAL SUBDIVISION)SECTION TOWNSHIP N RANGE,(E OR W )viM.W R I A COUNTY
NEI/4NE1/4 21 23N 5E 8 King
RECORDED PLATTED PROPERTY
LOT BLOCK OF (GIVE NAME OF FLAT OR ADDITION)
LEGAL DESCRIPTION OF PROPERTY ON WHICH WATER IS TO BE USED
City of Renton Municipal Water Supply service areawithin Township 23 north,Range 4 and 5 east and Township 24 north,Range 5 east
along with wholesale water to Lakeridge/Bryn-Mawr Water District through an intertie.Emergency interties for exchange of water exists
between Renton and the following service areas:Seattle and Kent.
DESCRIPTION OF PROPOSED WORKS
Well 346 feet deep,20 inch diameter
..DEVELOPMENT SCHEDULE
BEGIN PROJECT BY TillS DATE COMPLETE PROJECT DV TIltS DATE.-WATER PUT TO FULLUSE BY THIS DATE.
Completed Completed September 30,2021
SUPERSEDING PERMIT
PROVISIONS
Totalannualwithdrawalfromthisallocation(Gl-25397)andallrightsheldbyRentonshallnotexceed14,809acre-feet.
AnapprovedmeasuringdeviceshallbeinstalledandmaintainedinaccordancewithRCW90.03.360,WAC508-64-020throughWAC508-
64-040andasupdated.MeterreadingsshallberecordedmonthlyandthisdatashallbemaintainedandbemadeavailabletotheDepartmentof
Ecologyuponrequest.
Staticwaterlevel(SWL)shallbemeasuredatleastonceeachmonth.Measurementsshallbetakenafterthepumphasbeenshutoffandthe
waterlevelinthewellhasbeenstabilized.ThedatashallbemaintainedandmadeavailabletoEcologyuponrequest.However,Ecology’s
WaterResourcesSectionNWRO)shallbenotifiediftheSWLisdeterminedtobebelowthelevelnoimallyrecordedatthattimeofyear.
RentonshallmonitortheshallowandintermediateaquifersatleastmonthlytodeterminethebestapproachformaintainingCedarRiverflows
inthereachassociatedwiththeMaplewoodGolfCourseaquifers.
TheUSGSgage12119000(locatedindowntownRenton)shallbepermanentlymaintained.
Priortousingtheinstantaneousportionofthiswaterrightasadditivetoexistingrights,amanagementplanshallbesubmittedtoNWROWater
Resourcesandapproved.Themanagementplanshallprovidedetailedproceduresformonitoring,pumping,andassuringthatinstreamflowsin
theCedarRiverwillnotbeimpairedbypumping.
AnestimateofwaterconservationsavingsasapercentreductioninaveragedailypercapitaconsumptionshallbeprovidedtoNWROWater
Resources.Thisestimateofwaterconservationsavingswillbereplacedbyevidenceofactualwaterusereductionbeforeafinalwaterright
certificatewillbeissuedbytheDepartment.
Acertificateofwaterrightwillnotbeissueduntilafinalinvestigationismade.AspartoftheinvestigationRentonshallsubmitcollecteddata
tothisoffice.
Thispermitshallbesubjecttocancellationshouldthepermi/teefailtocomply.wit/itheabovedevelopmentscheduleand/orfail
togivenoticeto1/icDepartmentofEcolo’onformnsprovidedbythatDepartmentdocumentingsuchcompliance.
Givenundermyhandand1/icsealofthisofficeatBellevue,Washington,1/usayof,20/1.
DepartmentofEcology
REVIEWEDBY
OKAY_________;/
By/L7
JeiiyL.Liszak,ActiligSectinManager,WaterResources
SUPERSEDINGPERIVIIT2G1-25397
Appendix F
SYSTEM MAPS
Appendix G
CROSS CONNECTION CONTROL PLAN
2
INTRODUCTION
PURPOSE:
The purpose of the City of Renton’s Cross Connection Control Plan is to document the planning, implementation,
codes and policies of the City’s Cross Connection Control Program. The City has an on‐going cross connection
control program with authority established by City Ordinance 4312, which complies with WAC 246‐290‐490 and
with the Department of Health’s requirements. An Engineering Specialist II with the Water Utility section, with a
State certification as Cross‐Connection Control Specialist administers the program and implements City codes,
policies, standard operating procedures and other elements related to the program.
The City’s program follows and complies with the minimum elements of a cross connection control program
identified in WAC 246‐290‐490 (3) as listed below:
Element 1: The purveyor shall adopt a local ordinance, resolution, code, bylaw, or other written legal
instrument…
An Ordinance No. 4312 was adopted by City Council On May 13, 1991, amending City Codes on “Water, Health
and Sanitation” by adding a Cross‐Connection Control section, to protect the health of water customers and the
potability of the water in the distribution system. The ordinance established the City’s authority for
implementing the cross‐connection control program.
The following Renton Municipal Code (RMC) meets the requirements of Element 1 and its subsections:
RMC 4‐6‐020 CROSS CONNECTION CONTROL STANDARDS:
A PURPOSE:
1. National standards of safe drinking water have been established. The City, as a water purveyor, has the
primary responsibility for preventing water from unapproved sources, or any other substances, from
entering the public potable water system. (Ord. 4312, 5‐13‐1991)
2. This Section is to protect the health of the water consumer and the potability of the water in the
distribution system. This is accomplished by eliminating or controlling all actual (direct) and potential
(indirect) cross connections between potable and nonpotable systems through the use of approved
backflow prevention assemblies.
B APPLICABILITY:
This Chapter applies throughout the water service area of the City. It applies to all systems installed prior to
or after its enactment. Therefore, anyone wanting or using water from the City is responsible for
compliance with these regulations and shall be strictly liable for all damage incurred as a result of failure to
comply with the express terms and provisions contained herein.
C AUTHORITY:
The Administrator of the Department of Public Works will administer the provisions of the Chapter. He/she
will designate cross connection specialists and propound all needful rules and regulations to implement
these provisions. The Water Utility Section of the Utility Systems Division will be responsible for monitoring
and inspecting all existing cross connection assemblies and for keeping all records generated by the cross
connection control program. The Plan Review Section of the Development Services Division of the
Department of Community and Economic Development will be responsible for reviewing all new and
3
revised plans for cross connections. (Ord. 5450, 3‐2‐2009)
D INSTALLATION OF BACKFLOW PREVENTION ASSEMBLIES:
Backflow prevention assemblies required by this Chapter must be installed so as to be readily accessible for
maintenance and testing. All assemblies shall be connected at the meter, the property line when meters
are not used, or within any premises where, in the judgment of the City Cross Connection Control
Specialist, the nature and extent of activity on the premises or the materials used or stored on the premises
could present a health hazard should a cross connection occur. This includes:
1. Premises having an auxiliary water supply.
2. Premises having internal cross connections that are not correctable, or intricate plumbing arrangements
which make it impractical to ascertain whether or not cross connections exist.
3. Premises where entry is restricted so that inspections for cross connections cannot be made with
sufficient frequency or at sufficient short notice to assure that cross connections do not exist.
4. Premises having a repeated history of cross connections being established or re‐established.
5. Premises on which any substance is handled under pressure so as to permit entry into the public water
system, or where a cross connection could reasonably be expected to occur. This includes the handling of
process waters and cooling waters.
6. Premises where materials of a toxic or hazardous nature are handled such that if backsiphonage should
occur, a health hazard may result.
7. Hospitals, mortuaries, clinics.
8. Laboratories.
9. Piers and docks.
10. Sewage treatment plants.
11. Food or beverage processing plants.
12. Chemical plants using a water process.
13. Metal plating industries.
14. Petroleum processing or storage plants.
15. Radioactive material processing plants or nuclear reactors.
16. Car washes.
17. Process waters or cooling towers.
18. Fire sprinkler systems.
19. Irrigation systems.
20. Solar hot water systems.
21. Others specified by the Administrator of the Department of Planning/Building/Public Works.
E TYPES OF BACKFLOW PREVENTION ASSEMBLIES REQUIRED:
Specific types of backflow prevention assemblies are required in the following conditions:
1. An air‐gap separation or reduced principle backflow prevention assembly shall be installed where the
water supply may be contaminated by industrial waste of a toxic nature or any other contaminant which
would cause a health or system hazard.
2. An air gap must be used between a potable water supply and sewer connected wastes.
3. Lawn sprinkler or irrigation systems, which are supplied by City water only, shall be required to have a
pressure vacuum breaker. If such system contains an auxiliary pump or is subject to chemical additives a
double‐check valve assembly, air‐gap separation or a reduced pressure principle backflow prevention
assembly will be required.
F RESPONSIBILITIES OF OWNER AND UTILITY:
1. Water Utilities Section:
a. The Water Utilities Section will perform evaluations and inspections of plans/or premises of all existing
facilities and inform the owner, by letter, of any corrective action deemed necessary, the method of
4
achieving the correction and the time allowed for the correction to be made.
b. The Water Utilities Section shall insure that all backflow prevention assemblies are tested annually to
insure satisfactory operation.
c. The Water Utilities Section shall inform the owner, by letter, of any failure to comply by the time of the
first reinspection. An additional fifteen (15) days will be allowed for the correction. In the event the owner
fails to comply with the necessary correction by the time of the second reinspection, the Water Utilities
Section will inform the owner, by letter, that the water service to the owner’s premises will be terminated
within a period not to exceed five (5) days.
d. If the Water Utilities Section determines at any time that a serious threat to the public health exists, the
water service will be terminated immediately and without notice.
2. Plan Review Section: On new installations the Plan Review Section will provide on‐site evaluation and/or
inspection of plans in order to determine if cross connections exist and what type of backflow preventer, if
any, will be required before a water meter permit can be issued.
3. Owner:
a. The owner shall be responsible for the elimination or protection of all cross connections on his property.
b. The owner, whether notified by the City or not, shall at his expense install, maintain and have tested by
a certified tester any and all backflow preventers on his premises.
c. The owner shall return to the City the assembly test reports within thirty (30) days after receipt of the
yearly test notification.
d. The owner shall inform the Water Utilities Section of any proposed or modified cross connections.
e. Owners who cannot shut down operation for testing of assemblies must provide bypass piping with an
additional backflow assembly at their expense.
f. The owner shall only install backflow preventers which are approved by the Washington State
Department of Health.
g. The owner shall install backflow preventers only in a manner approved by the Washington State
Department of Health.
h. The owner may be required to install a backflow preventer at the service entrance if a private water
source is maintained on his premises, even if it is not cross connected to the City’s system.
i. Failure of the owner to cooperate in the installation, maintenance, repair, inspection and testing of
backflow preventers required by this Section shall be grounds for the termination of water service or the
requirements of an air‐gap separation.
G ANNUAL INSPECTION AND TESTING REQUIREMENTS:
All reduced pressure principle backflow assemblies, double check valve assemblies, pressure vacuum
breaker assemblies and air gaps installed in lieu of a backflow preventer shall be inspected and tested
annually or more often when successive inspections indicate failure. All inspections and testing will be
performed by a certified tester. The test reports shall be returned to the City within thirty (30) days after
receipt of the yearly test notification. (Ord. 4312, 5‐13‐1991)
5
Element 2: The purveyor shall develop and implement procedures and schedules for evaluating new and existing
service connections to assess the degree of hazard posed by the consumer's premises to the purveyor's
distribution system and notifying the consumer ……
New Installations: As part of the City’s review of an application for water service and for the issuance of a water
meter permit for domestic, landscape irrigation, fire sprinkler system of for other water uses:
1. The Water Utility section reviews all plans for development and redevelopement projects, including
plans for tenant improvements of existing and new buildings, and evaluates the cross‐connection
hazards. All new multi‐family, commercial and industrial development and redevelopment projects are
required to have “premise isolation” by having an approved Reduced‐Pressure Backflow Assembly
(RPBA) installed behind the domestic meter and as close as possible to the meter, conforming to the
City’s water utility standards details. The Water Utility may allow the installation of an approved Double
Check Valve Assembly (DCVA) for premise isolation, after the review of the building plumbing plans and
after verification that the use of the building is not considered as “severe or high‐hazard’ facilities per
Table 9 of WAC 246‐290‐490. A Double Check Valve Assembly (DCVA) is required on a landscape
irrigation meter and a Detector Double Check Valve Assembly (DDCVA) is required for a fire protection
service.
2. The City’s Building/Plumbing inspector evaluates the cross‐connection hazards from the building
internal plumbing and requires the installation of proper backflow prevention assemblies for in‐premise
isolation. The Water Utility coordinates its review of the plans with the Building/Plumbing inspector
when the backflow prevention assemblies are used both for premise and for in‐premise isolation.
3. The Public Works utility inspector inspects the installation of all backflow prevention assemblies
installed outside of the buildings. The Building/Plumbing inspector inspects all backflow prevention
assemblies installed inside the buildings.
4. Satisfactory backflow test reports must be submitted to the Water Utility for review prior to the final
occupancy of the building.
Periodic reevaluations: The Water Utility Cross‐Connection Control Program manager periodically reevaluates
connections and assess hazards as part of the preparation and submittal of the Annual Summary Report to the
Department of Health. Connections are also evaluated and hazards assessed when they are brought to the
attention of the Cross Connection Control Program Manager, for example during a tenant improvement project
or when a building/plumbing inspector notices something of concern.
Element 3: The purveyor shall develop and implement procedures and schedules for ensuring that:
(i) Cross‐connections are eliminated whenever possible
(ii) When cross‐connections cannot be eliminated, they are controlled by installation of approved backflow
preventers commensurate with the degree of hazard; and
(iii) Approved backflow preventers are installed in accordance with the requirements of subsection (6) of this
section.
1. The City’s Cross‐Connection Control Program endeavors to eliminate all actual or potential physical
cross‐connection where possible.
2. An approved air‐gap is required for a severe hazard facility such as the King County Wastewater
Treatment Plant. RPBA’s are required for premise isolation for all high‐hazard facilities and for all
facilities listed in Table 9 of WAC 246‐290‐490.
6
3. The City has adopted codes and published standards details and procedures for the installation and
testing of backflow prevention assemblies consistent with the “Cross‐Connection Control Manual
Accepted Procedure and Practice”, latest edition.
Element 4: The purveyor shall ensure that personnel, including at least one person certified as a CCS, are
provided to develop and implement the cross‐connection control program.
The City’s Cross‐Connection Control Program manager is a State certified Cross‐Connection Control Specialist.
Several staff in the Water Utility section and Water Maintenance section are also State certified Cross‐
Connection Control Specialists and Backflow Assembly Testers.
Element 5: The purveyor shall develop and implement procedures to ensure that approved backflow preventers
relied upon to protect the public water system are inspected and/or tested (as applicable) under subsection (7) of
this section.
The Cross Connection Control Program Manager maintains current a database of backflow prevention
assemblies installed within the water customers’ premises and at the water meters. The program manager
sends annual “Notice to Test” to owners of backflow prevention assemblies and reviews the tests reports
submitted by State certified backflow assembly testers. The program manager notifies the owners by letter
when an assembly fails the test and requires that the assembly be repaired or replaced and a satisfactory test
report must be submitted to the City. The program manager inspects all new installation of backflow assemblies
for premise‐isolation. The Building/Plumbing inspector inspects the installation of assemblies inside the
buildings. A hazard assessment is conducted as part of the inspection to ensure that protection is provided
commensurate with the assessed degree of hazard. A State certified BAT inspects air gap, RPBA’s, DCVA’s,
DDCVA’s and all other approved assemblies and sends the test reports to the City.
Element 6: The purveyor shall develop and implement a backflow prevention assembly testing quality control
assurance program, including, but not limited to, documentation of BAT certification and test kit calibration, test
report contents, and time frames for submitting completed test reports.
The Cross Connection Control Program Manager reviews the test reports submitted by State certified BATs for
completeness and accuracies. Test reports must be submitted within 30 days of completing the test. If
information is missing on the report, or errors are found, the program manager notifies the testers to resubmit a
revised report. The program manager may also inspect the assembly in question.
The program manager requires that the testers submit copies of their current certification and their test kit
calibration reports. This information in entered into the City database. A list of certified backflow device testers
in the King County area is kept in the Cross Connection Control Program files. Copies of this list are made
available to the public. A current list of backflow prevention assemblies approved for installation in Washington
State is also kept in the program's files. Both of these lists are updated on a regular basis.
Element 7: The purveyor shall develop and implement (when appropriate) procedures for responding to backflow
incidents.
This element is covered in the City of Renton Water System Emergency Response Plan and also in the Security‐
Terrorism Appendix. Each backflow incident is investigated by the City upon its discovery or knowledge.
Reports of investigations and findings are sent to the Department of Health for each actual backflow incident.
7
The City Public Works staff has been trained on response to various emergencies including a contamination of
water system through cross‐connection.
Element 8: The purveyor shall include information on cross‐connection control in the purveyor's existing program
for educating consumers about water system operation. The public education program may include periodic bill
inserts, public service announcements, pamphlet distribution, notification of new consumers and consumer
confidence reports.
The City provides information on cross‐connection through its website and trough the annual Water Quality
Report. Public outreach and education are conducted through special events, such as Renton River Days and
through regional participation with other Cities and Water purveyors.
Element 9: The purveyor shall develop and maintain cross‐connection control records including, but not limited
to, the following
(i) A master list of service connections and/or consumer's premises where the purveyor relies upon approved
backflow preventers to protect the public water system from contamination, the assessed hazard level of each,
and the required backflow preventer(s);
(ii) Inventory information on backflow preventers that protect the public water system including:
(A) Approved air gaps installed in lieu of approved assemblies including exact air gap location, assessed degree of
hazard, installation date, history of inspections, inspection results, and person conducting inspections;
(B) Approved backflow assemblies including exact assembly location, assembly description (type, manufacturer,
model, size, and serial number), assessed degree of hazard, installation date, history of inspections, tests and
repairs, test results, and person performing tests; and
(C) Approved AVBs used for irrigation system applications including location, description (manufacturer, model,
and size), installation date, history of inspection(s), and person performing inspection(s).
(iii) Cross‐connection program summary reports and backflow incident reports required under subsection (8) of
this section.
1. The City’s Cross‐Connection Control Program currently uses XC2 software and track the following
information on each backflow prevention assembly and facility served with City water: level of hazard,
type of backflow prevention assembly used, premise or in‐premise use, location of assembly or air‐gap,
installation date, inspection history, test and repair history, test results, tester’s information, inspection
of assembly.
2. The City keeps records of all backflow incidents investigations and findings and of the annual summary
reports.
Element 10: Purveyors who distribute and/or have facilities that receive reclaimed water within their water
service area shall meet any additional cross‐connection control requirements imposed by the department in a
permit issued under chapter 90.46 RCW.
The King County Wastewater treatment plant used reclaimed water produced by the plant. There is an
approved air‐gap between the City’s water supply and the domestic water tank owned by King County.
The Boeing Customer Training Center has a support facility that uses reclaimed water for its cooling system, and
there is an approved Double Check Valve Assembly at the City’s domestic meter to the facility and a Reduced
Pressure Backflow Assembly at the service branch to the cooling system.
Appendix H
DRINKING WATER QUALITY MONITORING PLAN
TABLE OF CONTENTS
I. Introduction
II. Water System and Treatment
III. Monitoring For Operations
A. Chlorine
B. Fluoride
C. Turbidity
D. Temperature
E. Polyphosphate
F. Iron
G. Manganese
H. Ammonia
I. Hydrogen Sulfide
J. pH
K. Well Water Level
L. Production Rates
IV. Regulatory Monitoring
A. Volatile Organic Chemical (VOC)
B. Synthetic Organic Chemical (SOC)
C. Trihalomethanes & Haloacetic Acids
D. Inorganic Chemical and Physical (IOC)
E. Bacteriological
F. Radionuclides
G. Tap Sampling for Lead and Copper
V. Aquifer Management Monitoring
A. Downtown Aquifer Water Quality
B. Downtown Aquifer Water Levels
C. Maplewood Aquifer Water Levels
VI. Water Quality Regulations of Current Significance to the City of Renton
A. Groundwater Rule
B. Stage 2 Disinfectants and Disinfection Byproducts Rule
C. Unregulated Contaminant Monitoring Rule 3
Appendix A Coliform Monitoring Plan
Appendix B Stage 2 Disinfectants & Disinfection Byproducts Rule Monitoring Plan
I. Introduction
This plan summarizes all the drinking water quality monitoring conducted by the City of Renton. The
monitoring includes, operational parameters such as fluoride and chlorine; regulatory requirements such as
volatile organics and inorganics, and aquifer management such as groundwater level measurement and
contaminate detection.
The document is divided into five sections. The first section describes the City of Renton water system and
treatment operations. The second section describes water quality monitoring for operations. Each parameter
is listed and under each parameter is a paragraph that describes the parameter, sampling and analysis
methods, sample locations, and recording and reporting. The third section describes water quality monitoring
per regulation (regulatory monitoring). Each parameter (or parameter family) is listed and under each
parameter is a paragraph that describes the required analytes, sampling locations, sampling and analysis
methods, sampling frequency and recording and reporting. The fourth section describes aquifer management
monitoring. Three objectives are listed and under each objective is a goal. The fifth section discusses current
or upcoming water quality regulations that are currently, or soon to have , a significant impact on water utility
operations at the staffing and or infrastructure level.
Appendix A to this plan is the City of Renton’s Coliform Monitoring Plan.
Appendix B to this plan is the City of Renton’s Stage 2 Disinfection & Disinfectants Byproducts Rule
Compliance Monitoring Plan.
II. Water System and Treatment
The City of Renton water system provides water service to an area of approximately 16 square miles and
64,000 customers through 17,368 service connections and one wholesale customer, Skyway Water and Sewer
District, via a single metered connection. The City’s water supply sources include nine wells (RW-1, RW-2,
RW-3, PW-5A, PW-8, PW-9, PW-11, PW-12 and PW-17) and one artesian spring (Springbrook Springs). The
City has an additional well, EW-3, available for emergency use. Wells RW-1, RW-2, RW-3, PW-8, PW-9 and
EW-3 are located in Liberty Park and Cedar River Park and pump from the Cedar River Delta Aquifer. Wells
PW-11, PW-12 and PW-17 are located on the Maplewood Golf Course and pump from the deep Maplewood
Aquifer. Well PW-5A pumps from a deep aquifer located in the Kennydale area of north Renton.
The City is a wholesale customer of Seattle Public Utilities (SPU). The City has six metered interties with
SPU transmission mains, which are available to serve wholesale water to the Renton distribution system.
The water distribution system serves the valley floor and five surrounding hills: West Hill, Highlands, Renton
Hill, Talbot Hill and Rolling Hills. There are 15 hydraulically distinct pressure zones, nine on-line booster
pump stations and two standby booster pump stations located throughout the City. There are 10 reservoirs
in the system and approximately 305 miles of water main in service.
Gaseous chlorine or sodium hypochlorite is added to all of the City's sources for disinfection and sodium
fluoride is also added to prevent dental caries / cavities. Sodium hydroxide is added at Wells RW-1, RW-2,
RW-3, PW-8, PW-9, and EW-3, as well as at Springbrook Springs, to raise the pH of the water delivered to
the distribution system. The Maplewood treatment facility treats water from wells PW-11, PW-12, and PW-
17. The Maplewood Treatment Plant: (1) removes hydrogen sulfide by converting it to sulfate by adding
oxygen (granular activated carbon is used as a catalyst), (2) removes manganese using green sand filters, and
(3) converts ammonia in the water to nitrogen gas by reacting it with sodium hypochlorite in a contact basin.
A sequestering agent (Aqua Mag) is used in Well 5A to treat for iron and manganese. Since there is also
naturally occurring ammonia in the water at Well 5A, the chlorine dosage is set to create monochloramines
for disinfection. From an aesthetics perspective the existing treatment is marginal (taste, odor and staining
problems still exist), therefore this source is used sparingly. Aqua Mag is also added at the Mt Olivet Booster
Pump Station, the West Hill Booster Pump Station, and Pressure-Reducing Valve (PRV) Station 20 in the
Renton Hill area for corrosion control because of the significant number of cast iron distribution pipelines in
these areas.
III. Monitoring For Operations
A. Chlorine
Parameters: Chlorine demand is calculated in mg/l, free chlorine residual is measured in mg/l and total
chlorine residual is measured in mg/l.
Sampling and Analysis Methods: Free chlorine is measured continuously by analyzer at all sources.
The analyzer data is recorded by SCADA and the results are stored in the SCADA System History
database. Grab samples are collected and measured daily by water quality staff for free chlorine from
each source that is operating when staff is present and at nine (9) sampling stations located throughout
the distribution system. Free and total chlorine are measured by water quality staff during compliance
bac-t sampling at bac-t sampling stations located throughout the distribution system. Grab samples at
the source and in the field are collected in a glass tube and analyzed using the DPD colorimetric method
(Hach Methods 10069 and 10070) using a Hach Pocket Colorimeter II.
Chlorine Grab Sample Locations:
Sampling Station Name Water Quality Database ID
Well RW-1-2-3 End of CT Pipe Loop MS040
Well PW-8 Fluoride sample tap PS026
Well PW-9 Fluoride sample tap PS027
Well PW-5A Treated Water FH NE668 POE14
Maplewood 565 Treated Water SA#14 PS010
Maplewood 590 Treated Water SA#14 PS010
Well EW-3 Treated Water PS024
Springbrook Springs Sampling Stn POE13
311 Chelan Ave SE Sampling Station MS030
1614 Hoquiam PL NE Sampling Station MS034
Highlands BPS 435 Zone Tap PS001
2510 Meadow Av N Sampling Station MS033
North Talbot BPS 490 Zone Tap PS005
S 180th & West Vly - Sampl Station MS028
West Hill BPS 495 Zone Tap PS009
806 High Ave S - Sampling Station MS026
Lind NW & Taylor Pl NW Sampling Stn MS032
See Coliform Monitoring Plan for the locations of the bac-t sampling stations.
Recording and Reporting: Water quality staff record raw data on the form, City of Renton Pump /
Chemical Feed Stations. Data from this form is used to complete the forms sent to DOH. Chlorine
demand is calculated based on volume of water produced and pounds of chlorine consumed. The
combined chlorine demand is calculated daily for all the chlorine gas supplied sources (Springbrook
Springs; RW-1, 2 & 3; PW-8 & 9 and EW-3) and for the sodium hypochlorite supplied sources (PW-11,
12 & 17). This value is recorded on the form, CHLORINATION PLANT & TURBIDITY REPORT,
which is sent to DOH monthly. The high value and low value of free chlorine measured by water quality
staff as well as the number of samples measured and the average value of the samples measured is
recorded daily on the form, CHLORINATION PLANT & TURBIDITY REPORT, for the chlorine gas
supplied sources (combined) and the sodium hypochlorite supplied sources (combined). This form is
sent to DOH monthly. The value of chlorine residual measured at each operating source is recorded
daily on the form, GROUND WATER TREATMENT PLANT REPORT, which is sent to DOH
monthly. The value of free chlorine and total chlorine which is measured during bac-t sampling is
recorded on the bac-t test forms which are sent to the commercial laboratory. A copy of the form is
returned to water quality staff with a detect or non-detect indication for coliform bacteria. Copies of
these reports are provided to water utility engineering staff.
B. Fluoride
Parameters: Fluoride demand is calculated in mg/l. Fluoride is measured in mg/l.
Sampling and Analysis Methods: Fluoride samples are collected and measured daily by water quality
staff from each source that is operating when staff is present and at seven (7) sampling stations located
throughout the distribution system. Once a month, at every source that ran for that month, two fluoride
samples are collected. One sample is tested at the city shop by water quality staff using the city test
equipment. The result of the test along with the second sample are sent to a state certified laboratory for
analyses. The result from the laboratory along with the result from the city shop is sent to the
Washington State Department of Health for comparison to ensure proper calibration of the city’s test
equipment. Fluoride samples are collected in a plastic bottle and transported to the city shop laboratory
for analysis by the colorimetric method (SPADNS 2 10225) using an Accuvac SPADNS 2 reagent for
fluoride with a Hach Model DR2700 spectrophotometer (Hach Method 8029).
Fluoride Sampling Locations:
Sampling Station Name Water Quality Database ID
Well RW-1-2-3 End of CT Pipe Loop MS040
Well PW-8 Fluoride sample tap PS026
Well PW-9 Fluoride sample tap PS027
Well PW-5A Treated Water FH NE668 POE14
Maplewood 565 Treated Water SA#14 PS010
Maplewood 590 Treated Water SA#14 PS010
Well EW-3 Treated Water PS024
Springbrook Springs Sampling Stn POE13
311 Chelan Ave SE Sampling Station MS030
1614 Hoquiam PL NE Sampling Station MS034
Highlands BPS 435 Zone Tap PS001
2510 Meadow Av N Sampling Station MS033
North Talbot BPS 490 Zone Tap PS005
S 180th & West Vly - Sampl Station MS028
Lind NW & Taylor Pl NW Sampling Stn MS032
Recording and Reporting: Water quality staff record raw data on the form, City of Renton Pump /
Chemical Feed Stations. Data from this form is used to complete the forms sent to DOH. Fluoride
demand is calculated based on volume of water produced and pounds of chlorine consumed. Daily
fluoride demand for each source running is calculated and recorded on the form, FLUORIDE PLANT
REPORT, which is sent to DOH monthly. Fluoride, measured daily at each source running, is reported
to DOH on the form, FLUORIDE PLANT REPORT, which is sent to DOH monthly. Flouride,
measured daily at each source running, is also reported to DOH on the form, GROUND WATER
TREATMENT PLANT REPORT, which is sent to DOH monthly. Copies of these reports are provided
to water utility engineering staff.
C. Turbidity
Parameters: Turbidity is measured as NTU.
Sampling and Analysis Method: Turbidity is measured daily from each source that is operating
when staff is present. Turbidity samples are taken at the source, before treatment and dosing with
chlorine and fluoride (raw water sample). The water samples are collected in a plastic bottle and
transported to the Corrosion Control Treatment Facility laboratory for turbidity analysis by a Hach
2100N Turbidimeter.
Turbidity Sampling Locations: See Temperature Monitoring.
Recording and Reporting: Results are recorded on the form, City of Renton Pump / Chemical Feed
Stations. The daily high value and low value for turbidity for the gas chlorine supplied sources
(combined) and the sodium hypochlorite supplied sources (combined) is transferred to the form,
CHLORINATION PLANT & TURBIDITY REPORT, which is sent to DOH monthly. A copy of
these reports is provided to water utility engineering staff.
D. Temperature
Parameters: Temperature is measured in degrees C.
Sampling and Analysis Method: Temperature is measured daily from each source that is operating
when staff is present. Temperature is measured at the source, before treatment and dosing with chlorine
and fluoride (raw water sample).
Temperature and Turbidity Sampling Locations:
Sampling Station Name Water Quality Database ID
Well RW-1 - Raw 472853122115701
Well RW-2 - Raw 472853122115601
Well RW-3 - Raw 472853122115602
Well PW-8 - Raw 472901122114901
Well PW-9 - Raw 472858122114201
Springbrook Springs Trtmt Bldg Raw MS016
Well EW-3 Raw Water 472902122115501
Well PW-5A - Raw 473050122114501
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Recording and Reporting: Results are recorded on the form, City of Renton Pump / Chemical Feed
Stations and transferred to the form, GROUND WATER TREATMENT PLANT REPORT, which is
sent to DOH monthly. A copy of this report is provided to water utility engineering staff.
E. Polyphosphate
Parameters: Phosphate (PO43-) measured in mg/l..
Sampling and Analysis Method: The city adds ortho-polyphosphates to its water in areas of the
distribution system which contain a high number of unlined cast iron water mains. Ortho-
polyphosphates act to control the corrosion of the interior surfaces of water mains. Ortho
polyphosphates are added at the Mt Olivet Booster Pump Station, West Hill Booster Pump Station and
PRV 20. The city tests for phosphate concentration in the water supply in these areas daily. Samples are
collected in a plastic bottle and transported to the city shops laboratory by water quality staff for analysis
by the colorimetric method using a Hach Model DR2700 spectrophotometer with Hach Permachem
Reagents – PhosVer3 Phosphate Reagent. (Hach Method 8048).
Polyphosphate Sampling Locations:
Sampling Station Name Water Quality Database ID
Highlands BPS 435 Zone Tap PS001
2510 Meadow Av N Sampling Station MS033
806 High Ave S - Sampling Station MS026
Lind NW & Taylor Pl NW Sampling Stn MS032
Recording and Reporting: Results are recorded on the form, City of Renton Pump / Chemical Feed
Stations, and transferred to the form, Iron and Phosphate, which is provided to water utility engineering
staff.
F. Iron
Parameters: Iron (Fe) measured in mg/l.
Sampling and Analysis Method: On a daily basis the city measure for iron in the distribution system
in areas with a high concentration of cast iron mains and in areas supplied by the Maplewood wells (PW-
11, 12 & 17). Samples are collected in a plastic bottle and transported to the city shops laboratory by
water quality staff for analysis by the colorimetric method using a Hach Model DR2700
spectrophotometer with Hach Permachem Reagents – Ferrover Iron Reagent. (Hach Method 8146).
When running and if time allows, water quality staff measure iron at the Maplewood Treatment plant.
Samples are collected at the raw water intake, mid-point of the Chlorine Contact Chamber and at the low
lift pump discharge pipe (when running). Samples are analyzed using a Hach Model DR4000 located in
the treatment plant lab.
Iron Sampling Locations:
Sampling Station Name Water Quality Database ID
311 Chelan Ave SE Sampling Station MS030
1614 Hoquiam PL NE Sampling Station MS034
Highlands BPS 435 Zone Tap PS001
2510 Meadow Av N Sampling Station MS033
806 High Ave S - Sampling Station MS026
Lind NW & Taylor Pl NW Sampling Station MS032
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Maplewood Chlor Cntct Chamber SA#11 PS023
Maplewood Low Lift Pumps SA#12 MS037
Recording and Reporting: Results are recorded on the form, City of Renton Pump / Chemical Feed
Stations, and transferred to the form, Iron and Phosphate, which is provided to water utility engineering
staff. Results from the Maplewood Treatment Plant are recorded in the Maplewood Treatment Plant
operations log.
G. Manganese
Parameters: Manganese (Mn) measured in mg/L
Sampling and Analysis Method: When running and if time allows, water quality staff measure
manganese at the Maplewood Treatment plant. Samples are collected at the raw water intake, mid-point
of the Chlorine Contact Chamber and at the low lift pump discharge pipe (when running). Samples are
analyzed using a Hach Model DR4000 located in the treatment plant lab (Hach Method 8149).
Manganese Sampling Locations:
Sampling Station Name Water Quality Database ID
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Maplewood Chlor Cntct Chamber SA#11 PS023
Maplewood Low Lift Pumps SA#12 MS037
Recording and Reporting: Results are recorded in the Maplewood Treatment Plant operations log.
H. Ammonia
Parameters: Ammonia (NH3-N) measured in mg/L
Sampling and Analysis Method: When running and if time allows, water quality staff measure
ammonia at the Maplewood Treatment plant. Samples are collected at the raw water intake and at the
mid-point of the Chlorine Contact Chamber. Samples are analyzed using a Hach Model DR4000 located
in the treatment plant lab (Hach Method 10023).
Ammonia Sampling Locations:
Sampling Station Name Water Quality Database ID
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Maplewood Chlor Cntct Chamber SA#11 PS023
Recording and Reporting: Results are recorded in the Maplewood Treatment Plant operations log.
I. Hydrogen Sulfide
Parameters: Hydrogen Sulfide (H2S) measured in mg/L
Sampling and Analysis Method: When running and if time allows, water quality staff measure
hydrogen sulfide at the Maplewood Treatment plant. Samples are collected at the raw water intake and at
the mid-point of the Chlorine Contact Chamber. Samples are analyzed using a Hach Model DR4000
located in the treatment plant lab (Hach Method 8131).
Hydrogen Sulfide Sampling Locations:
Sampling Station Name Water Quality Database ID
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Maplewood Chlor Cntct Chamber SA#11 PS023
Recording and Reporting: Results are recorded in the Maplewood Treatment Plant operations log.
J. pH
Parameters: pH.
Sampling and Analysis Method: The city measures the pH of treated water continuously by analyzer
at all sources. The analyzer data is recorded by SCADA and the results are stored in the SCADA System
History database. Water quality personnel measure pH on a daily basis at sources operating when they
are present, both before NaOH injection and after NaOH injection and at several sampling stations
located throughout the distribution system. Samples are collected in a plastic bottle and transferred to
the CCTF for analysis by a Thermoelectron Corporation pH meter.
pH Monitoring Locations, by Grab Sample:
Sampling Station Name Water Quality Database ID
Well RW-1 – Raw (before NaOH injection) 472853122115701
Well RW-2 – Raw (before NaOH injection) 472853122115601
Well RW-3 – Raw (before NaOH injection) 472853122115602
Well PW-8 – Raw (before NaOH injection) 472901122114901
Well PW-9 – Raw (before NaOH injection) 472858122114201
Well EW-3 Raw Water (before NaOH injection) 472902122115501
Well PW-5A – Raw (before NaOH injection) 473050122114501
Springbrook Springs Trtmt Bldg Raw (before
NaOH injection)
MS016
Well PW-11 Raw Water SA#2 PS014
Well PW-12 Raw Water SA#1 PS013
Well PW-17 Raw Water SA#3 PS015
Well RW-1-2-3 End of CT Pipe Loop (after NaOH
injection)
MS040
Well PW-8 Fluoride sample tap (after NaOH
injection)
PS026
Well PW-9 Fluoride sample tap (after NaOH
injection)
PS027
Well PW-5A Treated Water FH NE668 (after
NaOH injection)
POE14
Maplewood 565 Treated Water SA#14 (after
NaOH injection)
PS010
Maplewood 590 Treated Water SA#14 (after
NaOH injection)
PS010
Well EW-3 Treated Water (after NaOH injection) PS024
Springbrook Springs Sampling Stn (after NaOH
injection)
POE13
311 Chelan Ave SE Sampling Station MS030
Highlands BPS 435 Zone Tap PS001
2510 Meadow Av N Sampling Station MS033
North Talbot BPS 490 Zone Tap PS005
S 180th & West Vly - Sampl Station MS028
Lind NW & Taylor Pl NW Sampling Stn MS032
Recording and Reporting: pH, pre sodium hydroxide injection and post sodium hydroxide injection, is
measured by water quality personnel and recorded on the form, City of Renton Pump / Chemical Feed
Stations and transferred to the forms, PH, and GROUND WATER TREATMENT PLANT REPORT.
The form, PH, and, GROUND WATER TREATMENT PLANT REPORT, are provided to water
utility engineering staff. The form, GROUND WATER TREATMENT PLANT REPORT, is sent to
DOH monthly.
K. Well Water Level
Parameters: Feet from Top Of Case (TOC).
Sampling and Analysis Method: Well transducers automatically record water level data and store it
in the SCADA System History database. Water quality staff measure water level at production wells on a
weekly basis, whether the well is in operation or not.
Locations: Well RW-1, RW-2, RW-3, PW-8, PW-9, EW-3, PW-5A, PW-11, PW-12 & PW-17.
Recording and Reporting: Water levels measured by water quality staff are recorded on the form, City
of Renton Pump / Chemical Feed Stations, and transferred to the form, Well Level Measurements
YYYY, which is provided to water utility engineering staff.
L. Production Rates
Parameters: Measured in gallons.
Sampling and Analysis Method: All sources and all booster pump stations except Tiffany Park and Fred
Nelson are metered. Meter data is recorded by the SCADA system and stored in the SCADA System
History database. Water quality staff record meter readings on a daily basis for each source.
Locations: All sources and all booster pump stations except Tiffany Park and Fred Nelson.
Recording and Reporting: Meter readings measured by water quality staff are recorded on the form, City
of Renton Pump / Chemical Feed Stations, and summarized and transferred to the form, RENTON
WATER UTILITY MONTHLY REPORT, which is provided to water utility engineering staff.
IV. Regulatory Monitoring
A. Volatile Organic Chemical (VOC)
Regulated Under sections of WAC-246-290 and sections of 40 CFR 141.
REQUIRED ANALYTES:
EPA Regulated Analytes {40 CFR 141.61 (a)} and EPA Unregulated Analytes {reference not
known}.
Currently these analytes are covered by, WA DOH TEST PANEL: VOC1, however this may
change. Direct the laboratory to analyze for VOC’s for drinking water compliance monitoring.
SAMPLING LOCATIONS:
Reference: 40 CFR 141.24(f)
A minimum of one sample at every entry point to the distribution system which is representative of
each well after treatment.
Entry Point Sampling Station Name Water Quality Database ID
RW-1, RW-2, RW-3 Well RW-1-2-3 End of CT
Pipe Loop
MS040
PW-8 Well PW-8 Fluoride sample
tap
PS026
PW-9 Well PW-9 Fluoride sample
tap
PS027
PW-5A Well PW-5A Treated Water
FH NE668
POE14
PW-11, PW-12, PW-17 Maplewood 565 Treated Water
SA#14
PS010
PW-11, PW-12, PW-17 Maplewood 590 Treated Water
SA#14
PS010
EW-3 Well EW-3 Treated Water PS024
Springbrook Springs Springbrook Springs Sampling
Stn
POE13
SAMPLING AND ANALYSIS METHODS:
Reference 40 CFR 141.24(e)
Treated source water samples are collected in glass tubes provided by the commercial laboratory and
placed in a cooler. Analysis is done by a commercial laboratory using EPA Method 524.2.
SAMPLING FREQUENCY:
Reference: 40 CFR 141.24(f)
Once per every 3 years unless waived by DOH.
RECORDING AND REPORTING:
The commercial laboratory reports results directly to DOH and sends the shop a hard copy. The
shop sends the Water Utility engineering section a copy. Data are entered into the water quality data
base by Water Utility personnel.
B. Synthetic Organic Chemical (SOC)
Regulated Under sections of WAC-246-290 and sections of 40 CFR 141.
REQUIRED ANALYTES:
EPA Regulated Analytes {40 CFR 141.61 (c)} and EPA Unregulated Analytes {reference not
known}.
Currently these analytes are covered by, WA DOH TEST PANEL: PEST1, HERBS, FUMIGANT
and INSECT, however this may change. Direct the laboratory to analyze for SOC’s for drinking
water compliance monitoring. DOH may require one, two three or all four test panels.
SAMPLING LOCATIONS:
Reference: 40 CFR 141.24(h)
A minimum of one sample at every entry point to the distribution system which is representative of
each well after treatment.
Entry Point Sampling Station Name Water Quality Database ID
RW-1, RW-2, RW-3 Well RW-1-2-3 End of CT
Pipe Loop
MS040
PW-8 Well PW-8 Fluoride sample
tap
PS026
PW-9 Well PW-9 Fluoride sample
tap
PS027
PW-5A Well PW-5A Treated Water
FH NE668
POE14
PW-11, PW-12, PW-17 Maplewood 565 Treated Water
SA#14
PS010
PW-11, PW-12, PW-17 Maplewood 590 Treated Water
SA#14
PS010
EW-3 Well EW-3 Treated Water PS024
Springbrook Springs Springbrook Springs Sampling
Stn
POE13
SAMPLING AND ANALYSIS METHODS:
Reference 40 CFR 141.24(e)
Treated source water samples are collected in glass tubes provided by the commercial laboratory and
placed in a cooler. Analysis is done by a commercial laboratory using EPA Methods specified in 40
CFR 124.24(e).
SAMPLING FREQUENCY:
Reference: 40 CFR 141.24(h)
Twice per every 3 years unless waived by DOH.
RECORDING AND REPORTING:
The commercial laboratory reports results directly to DOH and sends the shop a hard copy. The
shop sends the Water Utility engineering section a copy. Data are entered into the water quality data
base by Water Utility personnel.
C. Trihalomethanes and Haloacetic Acids
Regulated Under sections of WAC-246-290 and sections of 40 CFR 141.
Trihalomethanes and Haloacetic Acids are regulated by the Stage 2 Disinfectants and Disinfection
Byproducts Rule (Stage 2 DBPR). Trihalomethanes are also included in the WA DOH TEST
PANEL: VOC1. See Stage 2 DBPR Compliance Monitoring Plan for more information on
distribution system monitoring and see VOC sampling reports for sampling results for samples taken
from the source, after treatment.
D. Inorganic Chemical and Physical (IOC)
Regulated Under sections of WAC-246-290 and sections of 40 CFR 141.
REQUIRED ANALYTES:
WAC 246-290-300(4).
Currently these analytes are covered by, WA DOH TEST PANEL: IOC, however this may change.
Direct the laboratory to analyze for IOC’s and Physical Characteristics for drinking water compliance
monitoring.
SAMPLING LOCATIONS:
Reference: WAC-246-290-300 (Table 3)
A minimum of one sample at every entry point to the distribution system which is representative of
each well after treatment. Asbestos is monitored in the distribution system per WAC-246-290-300.
Entry Point Sampling Station Name Water Quality Database ID
RW-1, RW-2, RW-3 Well RW-1-2-3 End of CT
Pipe Loop
MS040
PW-8 Well PW-8 Fluoride sample
tap
PS026
PW-9 Well PW-9 Fluoride sample
tap
PS027
PW-5A Well PW-5A Treated Water
FH NE668
POE14
PW-11, PW-12, PW-17 Maplewood 565 Treated Water
SA#14
PS010
PW-11, PW-12, PW-17 Maplewood 590 Treated Water
SA#14
PS010
EW-3 Well EW-3 Treated Water PS024
Springbrook Springs Springbrook Springs Sampling
Stn
POE13
SAMPLING AND ANALYSIS METHODS:
Reference 40 CFR 141.23(a) & 40 CFR 143.4
Treated source water samples are collected in glass tubes provided by the commercial laboratory and
placed in a cooler. Analysis is done by a commercial laboratory using various methods.
SAMPLING FREQUENCY:
Reference: 40 CFR 141.23(a)
Once per every three years unless waived by DOH. Nitrate and Nitrite must be sampled at every
source yearly. There is no waiver for Nitrate and Nitrite.
RECORDING AND REPORTING:
The commercial laboratory reports results directly to DOH and sends water quality staff a hard copy.
The water quality staff sends the Water Utility engineering section a copy. Data are entered into the
water quality data base by Water Utility personnel.
E. Bacteriological
Regulated Under sections of WAC-246-290.
REQUIRED ANALYTES: Total Coliform Bacteria, absence or presence.
SAMPLING LOCATIONS: See Coliform Monitoring Plan.
SAMPLING AND ANALYSIS METHODS: Samples are collected in plastic bottles provided
by the commercial laboratory. The bottles are provided with a reducing agent to dechlorinate the
samples. Typically thiosulfate is used. See Coliform Monitoring Plan for more details of routine
bacteriological sampling.
SAMPLING FREQUENCY: See Coliform Monitoring Plan.
RECORDING AND REPORTING: The commercial laboratory reports the results directly to
DOH and sends a hard copy of the results to water quality staff.
F. Radionuclides
Regulated under section 40 CFR 141.26.
REQUIRED ANALYTES: Gross Alpha in pCi/L and Radium 228 in pCi/L.
SAMPLING LOCATIONS:
Entry Point Sampling Station Name Water Quality Database ID
RW-1, RW-2, RW-3 Well RW-1-2-3 End of CT
Pipe Loop
MS040
PW-8 Well PW-8 Fluoride sample
tap
PS026
PW-9 Well PW-9 Fluoride sample
tap
PS027
PW-5A Well PW-5A Treated Water
FH NE668
POE14
PW-11, PW-12, PW-17 Maplewood 565 Treated Water
SA#14
PS010
PW-11, PW-12, PW-17 Maplewood 590 Treated Water
SA#14
PS010
EW-3 Well EW-3 Treated Water PS024
Springbrook Springs Springbrook Springs Sampling
Stn
POE13
SAMPLING AND ANALYSIS METHODS: Samples are collected in a plastic bottle provided by
the commercial laboratory. Analysis is done by a commercial laboratory using methods, EPA 900.0:
RL-GPC-001 and EPA 904.0: RL-RA-001.
SAMPLING FREQUENCY: Currently once every three years.
RECORDING AND REPORTING: The commercial laboratory reports results directly to DOH
and sends water quality staff a hard copy. The water quality staff sends the Water Utility engineering
section a copy. Data are entered into the water quality data base by Water Utility personnel.
G. Tap Sampling for Lead and Copper
Regulated under 40 CFR 141.86, 40 CFR 141.87 & 40 CFR 141.88.
REQUIRED ANALYTES: Lead and copper in mg/L
SAMPLING LOCATIONS: Currently the Water Utility is required to sample 30 sites. Lead and
copper sampling sites are identified in the water quality database under the SITE_ID column by the
designation: LS***. Currently there are 119 qualified sites entered in the database.
SAMPLING AND ANALYSIS METHODS: Samples are collected at single family home kitchen
and bathroom water faucets, by the residents, in plastic bottles provided by the commercial
laboratory and delivered by the Water Utility. Residents are instructed not to run their water for 6
hours prior to taking their sample. The Water Utility collects the filled bottles and delivers them to
the commercial laboratory for analysis. Notify the laboratory that these samples are for compliance
with mandatory lead and cooper tap sampling. Water Utility engineering staff manage the lead and
copper tap sampling program.
SAMPLING FREQUENCY: At this time the Water Utility is on a 3 year cycle approved by DOH.
Samples should be collected between June and September.
RECORDING AND REPORTING: The commercial laboratory reports the results directly to
DOH and sends a copy to engineering staff. The results are entered in the water quality database by
water utility personnel.
V. Aquifer Management Monitoring
Goal: To provide an early warning of contaminates present in production well capture zones and to
track the short term (seasonal) and the long term changes in the elevation of the aquifer water table.
The City owns (owned) 58 monitoring wells which can be used to collect water samples and measure
the elevation of the water table.
Status of Monitoring Wells: In 2009 the City contracted with Pacific Groundwater Group to assess
the state of the City’s monitoring wells. Pacific Groundwater Group could not locate two wells,
determined that two wells had been abandoned and four had been decommissioned. Pacific
Groundwater Group provided the City with a list of recommended maintenance and upgrades to the
monitoring wells to make them more secure and more usable. The City has hired Pacific
Groundwater Group to provide a risk assessment of the aquifer; prioritze the monitoring wells based
on the outcome of the risk assessment, and repair and secure the monitoring wells.
A. Downtown Aquifer Water Quality
Goal:
To sample the water quality of the downtown aquifer for contaminates which may reach our
downtown drinking water wells. Past sampling has been sporadic.
The City has contracted with Pacific Groundwater Group to perform a risk assessment of the
downtown aquifer and prioritize the monitoring wells based on their probability of detecting a
contamination event. Based on Pacific Groundwater Group’s findings and staffing availability, the
Water Utility will identify the monitoring wells to sample as well as the frequency of sampling. If
contaminates are detected in a monitoring well, the Water Utility will conduct follow up sampling.
The test results are entered into the Water Quality database.
B. Downtown Aquifer Water Level
Goal:
To measure water levels in the downtown aquifer on a monthly basis, September - May and a bi-
weekly basis June – August. The data is used to analyze the seasonal and long term changes in the
water table. The measurements are entered in the Water Level database. The following monitoring
wells are measured:
MW-1, MW-10, MW-18, MW-20, MW-21, MW-30S, MW-30D, MW-31S, MW-31D, MW-34S, MW-
34D, OSP-9 & HC-6I. Recently monitoring wells MW-27, MW-25S and MW-25D were added to
this list.
C. Maplewood Aquifer Water Level
Goal:
To measure water levels in the shallow and deep aquifers at the Maplewood Golf Course. The data
is used to analyze the impact of production well pumping on the aquifers. The Water Utility has
installed pressure transducers in several of the groundwater wells located in the Maplewood aquifers
(MW-36S & D, MW-37S & D and MW-38S & D). The transducers measure pressure and
temperature and are programmed to take a measurement every 10 minutes. The data is downloaded
from the transducers and stored on the City of Renton’s H drive.
Issues:
The transducers breakdown frequently. The manufacturer re-designs the transducers on a regular
basis and does not provide technical support for older models, which forces the Water Utility to
often upgrade the transducers. The program to manage and maintain the transducers is time
consuming and expensive. At this time the Water Utility is exploring other options for measuring
groundwater levels in the shallow and deep Maplewood aquifers.
VI. Water Quality Regulations of Current Significance to the City of Renton
A. The Groundwater Rule
The Groundwater Rule (GWR) was signed October 11, 2006 by EPA Administrator Stephen L. Johnson;
published in the Federal Register on November 08, 2006; adopted by the Washington State Department
of Health on October 1, 2010, and placed into effect on November 1, 2010. A correction to the table on
Analytical Methods For Source Water Monitoring was published in the Federal Register November 21,
2006. The rule builds upon the Total Coliform Rule (TCR) by addressing the health risks of fecal
contamination in groundwater sources used by public water system.
The GWR applies to all Group A public water systems that:
• Rely entirely on one or more groundwater sources.
• Receive finished groundwater from another public water system.
• Mix surface water sources (or groundwater under the direct influence of surface water)
with groundwater. Systems that combine all of their sources before treatment are exempt
from the rule.
The GWR’s risk-based strategy addresses risks through an approach that relies on four major
components:
Periodic sanitary surveys of systems that require the evaluation of eight critical elements of a public
water system and the identification of significant deficiencies (e.g., a well located near a leaking septic
system);
Triggered source water monitoring when a system (that does not already treat drinking water to
remove 99.99 percent (4-log) of viruses) identifies a positive sample during its Total Coliform Rule
monitoring and assessment monitoring (at the option of the state) targeted at high-risk systems;
Corrective action is required for any system with a significant deficiency or source water fecal
contamination; and
Compliance monitoring to ensure that treatment technology installed to treat drinking water reliably
achieves 99.99 percent (4-log) inactivation or removal of viruses.
City of Renton Action:
Currently City of Renton water quality personnel collect source water samples, from sources in operation,
when they collect coliform samples for compliance with the Total Coliform Rule. This allows immediate
identification of E. coli positive or negative source water samples in case the City finds a coliform
positive sample in the distribution system. These source water samples count as triggered source water
samples. If an E. coli positive sample is detected in a source water sample the Washington State
Department of Health will direct the City to either take corrective action or take five additional source
samples within 24 hours. If E. coli continues to be present in source water samples the Department of
Health will direct the City to take corrective action and issue public notification. In addition the
Groundwater Rule increases the frequency of sanitary surveys from once every five years to once every
three years if certain requirements are not met.
The City of Renton is currently in the preliminary design phase of a chlorine contact system for wells
PW-8, PW-9, EW-3 and Springbrook Springs to provide 4-log treatment of viruses in conjunction with
compliance monitoring. Once the system is approved by the Department of Health and placed into
operation, the City will no longer have to meet the triggered source water monitoring requirements and
will be allowed to maintain a sanitary survey frequency of 5 years. However, the City will be required to
perform compliance monitoring of the 4 log inactivation or removal of viruses and comply with
corrective action and public notification as directed by DOH for compliance violations.
Wells RW-1, 2 & 3 receive 4 log treatment of viruses through the existing CT6 pipeline installed in
Liberty Park. Wells PW-11, 12 & 17 receive 4 log treatment of viruses through the chlorine contact
chamber operating at the Maplewood Treatment Plant.
B. Stage 2 Disinfectants and Disinfection Byproducts Rule (Stage 2 DBPR)
Published in the Federal Register on January 4, 2006 with an effective date of March 6, 2006. The
Washington State Department of Health adopted the rule and began enforcement January 4, 2010.
The purpose of the rule is to increase public health protection by reducing the potential risk of adverse
health effects associated with disinfection byproducts (DBPs) throughout the distribution system. Stage
2 DBPR Builds on the Stage 1 Disinfectants and Disinfection Byproducts Rule (Stage 1 DBPR) by
focusing on monitoring for and reducing concentrations of two classes of DBPs –TTHM and HAA5 – in
drinking water.
Initial Distribution System Evaluation (IDSE)
Stage 2 DBPR requires some systems to complete an IDSE to characterize DBP levels in their
distribution systems and identify locations to monitor DBPs for stage 2 DBPR compliance. The Stage 2
DBPR bases TTHM and HAA5 compliance on a locational running annual average (LRAA) calculated at
each monitoring location. The IDSE options are: Standard Monitoring, System Specific Study (SSS),
40/30 Certification (no IDSE monitoring requirements) and Very Small System Waiver (no IDSE
monitoring requirements)
Major changes from Stage 1 DBPR to the Stage 2 DBPR include:
Consecutive systems now must monitor if any water they provide is treated with any type of chlorination
or ozone, even if only the supplier uses it.
The number of samples served is now only related to population served and source type.
Sample locations are based on locations of highest TTHM and HAA5 averages based on both interim
stage 2 DBPR monitoring during initial distribution system evaluation, if required, and Stage 1 DBPR
monitoring. Large systems must include some Stage 1 DBPR locations.
Determining maximum contaminant level compliance now is based on the locational annual average.
Compliance Dates:
Schedule 1 systems (systems serving populations greater or equal to 100,000) must begin routine
monitoring according to Stage 2 rule by April 1, 2012.
Sampling requirements:
Ground water systems serving populations of 100,000 – 499,999 must take 6 samples per quarter.
Groundwater systems serving populations equal to or greater than 500,000 must take 8 samples per
quarter.
City of Renton Action:
The City of Renton applied for and received 40/30 Certification and therefore is not required to
complete an IDSE. Currently Renton samples once yearly, in summer, for TTHM and HAA5 from 6
sites. Renton continues to comply with the 40/30 certification by maintaining TTHM at all sites below
40 micro-grams per liter and HAA5 at all sites below 30 micro-grams per liter. At the time of this writing
Renton is waiting for direction from DOH on how to prepare the Stage 2 DBPR Compliance Monitoring
Plan. Renton is classified as a Schedule 1 system and must begin routine monitoring according to the
Stage 2 DBP Rule by April 1, 2012. Renton will be required to sample at either 6 or 8 sites, depending on
the combined population of the Seattle Public Utilities’ water service area and the Renton Water Utility
service area.
C. Unregulated Contaminants Monitoring Rule 3
As proposed, UCMR 3 would require public water systems (PWSs) to monitor for 28 chemicals and two
viruses. All PWSs serving more than 10,000 people, and a representative sample of 800 PWSs serving
10,000 or fewer people, would be required to conduct Assessment Monitoring for 28 "List 1" chemicals
during a continuous 12-month period from January 2013 through December 2015. In addition, a targeted
group of 800 PWSs serving 1,000 or fewer people would be required to conduct Pre-Screen Testing for
two "List 3" viruses during a 12-month period from January 2013 through December 2015.
Contaminants listed are:
17-B-estradiol; 17-a-ethynylestradiol; 16-a-hydroxyestradiol; equilin; estrone; testosterone; 4-androstene-3,
17-dione; 1,2,3-trichloropropane; 1,3-butadiene; chloromethane; 1,1-dichloroethane; n-propylbenzene;
bromomethane; sec-butylbenzene; chlorodifluoromethane; bromochloromethane; 1,4-dioxane; vanadium;
molybdenum; colbalt; strontium; chlorate; perfluorooctane sulfonate; perfluorooctanoic acid;
perfluorononanoic acid; perfluorohexane sulfonic acid; perfluoroheptanoic acid; perfluorobutane sulfonic
acid; enteroviruses; noroviruses.
City of Renton Action:
The City is monitoring the development of this rule.
Appendix A
To Drinking Water Quality Monitoring Program
Coliform Monitoring Plan
The plan consists of six components:
I. SYSTEM INFORMATION
II. SAMPLING INFORMATION
III. PUBLIC NOTIFICATION
IV. PLAN PREPARATION INFORMATION
V. MAP
VI. DEPARTMENT OF HEALTH PRESS RELEASE TEMPLATE
I. SYSTEM INFORMATION
1) Water System Name: City of Renton
2) System ID number: 71850L, Class 1
3) Location: King County
4)
a) Sources:
DOH Source # DOH Source
Name
Renton
Source Name
Source
Category
Well Depth
(ft)
Source Location
(degrees, minutes,
seconds)
S01 Well #1 RW-1 Well 57 122°12'1.106"W
47°28'52.748"N
S02 Well #2 RW-2 Well 52 122°12'1.343"W
47°28'52.754"N
S03 Well #3 RW-3 Well 50 122°12'1.588"W
47°28'52.935"N
S04 Well #5 PW-5A Well 276 122°11'48.756"W
47°30'47.583"N
S05 Springbrook
Springs
Springbrook
Springs
Spring N/A 122°12'29.883"W
47°25'30.372"N
S06 Well #4 Well-4 Well 92
S07 Well #8 PW-8 Well 66 122°11'52.625"W
47°28'54.91"N
S08 77050Y/Seattle Intertie N/A Multiple
S09 Well #9 PW-9 Well 65 122°11'48.233"W
47°28'58.933"N
S10 Wellfield Wells RW1,
RW2, & RW3
Wellfield 50
DOH Source # DOH Source
Name
Renton
Source Name
Source
Category
Well Depth
(ft)
Source Location
(degrees, minutes,
seconds)
S11 Well #11 PW-11 Well 285 122°9'56.274"W
47°28'21.134"N
S12 Well #17 PW-17 Well 286 122°9'56.915"W
47°28'21.378"N
S13 Wellfield Wells PW-11,
PW-12 &
PW-17
Wellfield 285
S15 Well #12 PW-12 Well 298 122°10'7.983"W
47°28'27.56"N
S16 Well #3 EW-3 Well 35 122°11'54.97"W
47°29'1.782"N
b) Alternate Outside Supply Connections:
i. Interties
Name Location Receiving Zone Type Connection
Size
PRV #28
SPU #33
Shattuck Ave S & S
23rd St
Talbot Hill 350 One-Way Intertie –
Seattle to Renton
6-inch
Fred Nelson
SPU #34
Benson Rd S & S
26th St. Fred
Nelson BPS
Rolling Hills 590 One-Way Intertie –
Seattle to Renton
8-inch
SPU Station #36 Jones Ave S & S 7th
St.
Rolling Hills 490 One-Way Intertie
Seattle to Renton
6-inch
PRV #6
SPU #37
Beacon Way Near
Renton Ave S.
Scenic Hill 370 One-Way Intertie –
Seattle to Renton
3-inch / 3-
inch
PRV #35
SPU #38
S 134th St &
Thomas Ave. S.
Earlington 370 One-Way Intertie –
Seattle to Renton
6-inch
Tiffany Park
SPU #39
Kirkland Ave SE &
SE 158th St.
Tiffany Park BPS
Rolling Hills 590 Two-Way Intertie –
Seattle & Renton
10-inch / 8-
inch
PRV #24
Bow Lake Pipeline
SPU #196
1901 Oakesdale
Ave SW (1,250 feet
south)
Downtown 196 One-Way Intertie –
Seattle to Renton
8-inch
Renton / Seattle Union Ave SE & SE
2nd PL.
N/A One-Way Intertie –
Renton to Seattle
10-inch
Name Location Receiving Zone Type Connection
Size
PRV #25
Renton – Kent
SW 43rd Street &
Lind Avenue SW
Downtown 196 Two–Way Intertie 10-inch
Skyway Wholesale 80th Ave S & S 116th
St
N/A One-Way Intertie –
Renton to Skyway
10-inch
Boeing Plant
Meter-East
SPU #179
Logan Ave S & S 2nd
St.
N/A One Way Intertie –
Seattle to Boeing Plant
10-inch
Boeing Plant
Meter-West
SPU #180
Logan Ave S & S 2nd
St.
N/A One Way Intertie –
Seattle to Boeing Plant
10-inch
ii. Emergency Interties
Name Location Receiving Zone Type Connection
Size
PRV #53 Coal
Creek Utility
District
2610 Lynnwood
Ave NE
N/A One Way Emergency
Intertie –
Renton to Coal Creek
Utility District
8-inch
PRV #23
Renton – Tukwila
17300 West Valley
Hwy S.
Downtown 196 Two–Way Emergency
Intertie
8-inch
Dimmit Booster
Pump Station
Skyway Water &
Sewer District -
Renton
12603 82nd Ave S West Hill 495 Two Way Emergency
Intertie
6-inch
12-inch
5) Storage/Reservoirs
Reservoir Name (Zone) Address (street & zip) Capacity in Gallons (Nominal)
North Talbot (196) 1912 Talbot Rd. S., 98055 5 million
Mt Olivet (196) 250 Bronson Way NE, 98056 3 million
Highlands (435) 3410 NE 12th Street, 98056 1.5 million
Highlands (435) 3410 NE 12th Street, 98056 2 million
Reservoir Name (Zone) Address (street & zip) Capacity in Gallons (Nominal)
Highlands (565) 3410 NE 12th Street, 98056 750,000
Hazen (565) 4900 NE 12th Street, 98059 4.2 million
Rolling Hills (590) 2401 Puget Drive SE, 98055 300,000
Rolling Hills (490) 2401 Puget Drive SE, 98055 3 million
West Hill (495) 12603 82nd Ave S, 98178 1.4 million
South Talbot (350) 4300 Main Ave S, 98055 1.5 million
Maplewood Clearwell 4030 Maple Valley Hwy, 98058 212,000
6) Zone Transfer Stations
a) Pressure Reducing Stations
Station No. Station Location Receiving Zone Supplying Zone
1 Taylor Pl NW, SE of intersection of
Taylor Pl NW and Stevens Ave NW –
602 Taylor PL NW
West Hill 300 West Hill 495
2 NW 4th Street & Lind Ave NW – 371
Lind Ave NW
West Hill 300 West Hill 495
3 SW Langston Rd SW & Bagley Place
SW – 510 Langston Rd SW
West Hill 300 Earlington 370
47 NW 3rd Street & Maple Ave NW –
301 Maple Ave NW
West Hill 300 West Hill 495
4 Mill Ave S & S 6th Street – 536 Mill
Ave S
Scenic Hill 370 Rolling Hills 490
5 Cedar Ave S & S 5th Street – 444
Cedar Ave S
Scenic Hill 370 Rolling Hills 490
6 Beacon Way S between Renton Ave
S & Cedar Ave S, 1318 Beacon Way S
Scenic Hill 370 Seattle Public Utilities
Cedar River Pipeline #3
Station No. Station Location Receiving Zone Supplying Zone
22 Renton Ave S & Beacon Way S – 424
Renton Ave S
Scenic Hill 370 Rolling Hills 490
7 Benson Rd S & S 15th Street, South of
1240 Benson Rd S
East Talbot Hill 300 Rolling Hills 490
8 Eagle Ridge Dr & S 15th Street, North
of 1600 S Eagle Ridge Drive
East Talbot Hill 300 Rolling Hills 490
9 North Talbot Booster Pump Station -
730 S 19th Street
Talbot Hill 350 Rolling Hills 490
12 S 23rd Street & Williams Ave S – 2217
Williams Ave S
Talbot Hill 350 Rolling Hills 490
28 S 23rd Street & Shattuck Ave S –
2226 Shattuck Ave S
Talbot Hill 350 Seattle Public Utilities
Bow Lake Pipeline 490
49 S 35th Street & Wells Ave S, West of
1001 S 35th Street
Talbot Hill 350 Rolling Hills 490
10 S 16th Street & Talbot Rd S, East of
1605 Talbot Rd S
West Talbot Hill 300 Talbot Hill 350
29 S 23rd Street & Shattuck Ave S –
2226 Shattuck Ave S
West Talbot Hill 300 Talbot Hill 350
13 Meadow Ave N & N 28th Street –
1440 N 28th Street
Kennydale 320 Highlands 435
14 Meadow Ave N & N 32nd Street –
1415 N 32nd Street
Kennydale 320 Highlands 435
16 NE 3rd Street & Sunset Blvd N, South
of 324 Sunset Blvd N
Kennydale 320 Highlands 435
26 Marina Landing Apartments – 1300
N 20th Street
Kennydale 320 Highlands 435
39 Inside Houser Way Booster Pump
Station – 325 Houser Way N
Kennydale 320 Highlands 435
43 N 26th Street & Park Ave N – 1405 N
26th Street
Kennydale 320 Highlands 435
Station No. Station Location Receiving Zone Supplying Zone
52 North of West Hill Booster Pump
Station @ 615 West Perimeter Road
Kennydale 320 West Hill 495
23 Tukwila Emergency Intertie – 17300
West Valley Highway
Valley 196 Tukwila 360
24 Boeing Longacres Intertie, PID
0886700140
Valley 196 Seattle Public Utilities
Bow Lake Pipeline 490
25 Kent Intertie, SW 43rd Street & Lind
Ave SW – 4208 Lind Ave SW
Valley 196 Kent 220
30 Park Ave N & N 8th Street – 750 Park
Ave N
Valley 196 Kennydale 320
31 636 Park Ave N Valley 196 Kennydale 320
32 SW Sunset Blvd & Maple Ave SW –
203 SW Sunset Blvd
Valley 196 West Hill 300
36 Talbot Rd S & 177th Ave SE – 17600
Talbot Rd S
Talbot Hill 270 Talbot Hill 350
37 East of N 4th Street & Houser Way N,
North of 353 Sunset Blvd N
Valley 196 Highlands 435
40 Inside Maplewood Booster Pump
Station – 4030 Maple Valley
Highway
Valley 196 Rolling Hills 590
48 NW Corner of Maplewood Booster
Pump Station – 4030 Maple Valley
Highway
Valley 196 Highlands 565
34 Benson Rd S & S 26th Street, SE
Corner of 2223 Benson Rd S
Rolling Hills 490 Rolling Hills 590
46 SE 8th Place Between S 7th Court & SE
8th Street, NW of 1701 SE 8th St.
Rolling Hills 490 Rolling Hills 590
35 Thomas Ave SW & SW Langston Rd,
PID 1823059026
Earlington 370 Seattle Public Utilities
Cedar River Pipeline #2,
520
Station No. Station Location Receiving Zone Supplying Zone
41 84th Ave S & Renton Ave S, 13223
84th Ave S
Earlington 370 West Hill 495
38 Inside Monroe Ave Booster Pump
Station, Transfer Valve @ SE Corner
of 401 Monroe Ave NE
Highlands 435 Highlands 565
44 Shadow Hawk Condos – SE 12th
Street & Kirkland Ave SE
Rolling Hills 395 Rolling Hills 590
45 Shadow Hawk Condos, SE 12th Street
& Harrington Place SE
Rolling Hills 395 Rolling Hills 590
50 East of 4127 Wells Ave N Kennydale 218 Kennydale 320
51 N 42nd Place & N 43rd Street Kennydale 218 Kennydale 320
53 2610 Lynnwood Ave NE Coal Creek Utility
District 440
Highlands 565
b) Booster Pump Stations
Name Address (street & zip) Receiving Zone Supplying Zone
Mt. Olivet
BPS
250 Bronson Way NE, 98056 Highlands 435 Valley 196
Houser
Way BPS
325 Houser Way N, 98057 Kennydale 320
Highlands 435
Valley 196
Valley 196
Monroe
Ave BPS
401 Monroe Ave NE, 98056 Highlands 565 Highlands 435
Highlands
BPS
3410 NE 12th St, 98056 Highlands 565 Highlands 435
West Hill
BPS
615 West Perimeter Rd, 98057 West Hill 495 Valley 196
Rolling Hills
BPS
2401 Puget Drive SE, 98055 Rolling Hills 590 Rolling Hills 490
Name Address (street & zip) Receiving Zone Supplying Zone
North
Talbot BPS
730 S 19th St, 98055 Rolling Hills 490
Talbot Hill 350
Valley 196
Valley 196
Maplewood
BPS
4030 Maple Valley Hwy, 98058 Rolling Hills 590
Highlands 565
Maplewood 79
Maplewood 79
South
Talbot BPS
50 S 43rd St, 98057 Talbot Hill 350 Valley 196
Tiffany Park
BPS
2000 Kirkland Ave SE, 98058 Rolling Hills 590 Seattle Public Utilities
490
Fred Nelson
BPS
2300 Benson Rd S, 98055 Rolling Hills 590 Seattle Public Utilities
490
Dimmitt
BPS
12603 82nd Ave S, 98178 West Hill 495 Skyway 460
Windsor
Hills BPS,
581 Sunset Blvd NE, 98056 Decommissioned Decommissioned
7) Treatment Plants
Name & Address Source Treated Process Utilized Objective
Pumphouse for RW-1,
RW-2 & RW-3,
1398 Houser Way N,
98057
RW-1, RW-2 & RW-3 Chlorination &
Fluoridation
Secondary Disinfection
& Dental Hygiene
CT Pipeline,
1398 Houser Way N,
98057
RW-1, RW-2 & RW-3 CT-6 - contact time for
chlorine
Primary Disinfection
Pumphouse for Well
PW-5A,
2401 NE 24th Street,
98056
PW-5A Chloramination
Fluoridation
Polyphoshate
Secondary Disinfection,
Dental Hygiene, Iron &
Manganese
Sequestering
Name & Address Source Treated Process Utilized Objective
Pumphouse for Well
PW-8,
1701 Maple Valley Hwy,
98057
PW-8 Chlorination Secondary Disinfection
Pumphouse for Well
PW-9,
1707 Maple Valley Hwy,
98057
PW-9 Chlorination Secondary Disinfection
Fluoridation Building,
1703 Maple Valley Hwy,
98057
PW-8 & PW-9 Fluoridation Dental Hygiene
Treatment Building at
Springbrook Springs,
5750 Talbot Rd S.,
98055
Springbrook Springs Chlorination
Fluoridation
Sodium Hydroxide
Secondary Disinfection,
Dental Hygiene &
Corrosion Control
Pumphouse for EW-3
1500 Houser Way N,
98055
EW-3 Chlorination
Fluoridation
Secondary Disinfection
& Dental Hygiene
Corrosion Control
Treatment Facility,
1705 Maple Valley Hwy,
98057
RW-1, RW-2, RW-3, PW-
8, PW-9 & EW-3
Sodium Hydroxide Corrosion Control
Maplewood Booster
Pump Station,
4030 Maple Valley Hwy,
98058
PW-11, PW-12 & PW-17 Fluoridation Dental Hygiene
Name & Address Source Treated Process Utilized Objective
Maplewood Treatment
Plant,
4032 Maple Valley Hwy,
98058
PW-11, PW-12 & PW-17 GAC Filter Process
Greensand Filter
Process
Chlorine Contact
Chamber
Hydrogen Sufide to
Sulfate Conversion,
Manganese Removal,
Ammonia to Nitrogen
Gas Conversion,
Primary & Secondary
Disinfection
Mt Olivet Booster Pump
Station,
250 Bronson Way NE,
98056
Highlands 435 Zone Ortho/polyphosphate
addition
Corrosion Control
8) Population Served & Service Connections By Pressure Zone
Pressure Zone Population (estimated) Connections
Valley 196 15770 2829
Kennydale 218 144 124
Kennydale 320 7602 1288
Highlands 435 10067 3358
Highlands 565 17948 5894
West Hill 300 609 216
Earlington 370 1460 313
West Hill 495 1160 431
Scenic Hill 370 127 85
East Talbot Hill 300 98 26
West Talbot Hill 300 593 363
Talbot Hill 350 2963 1066
Rolling Hills 395 144 54
Pressure Zone Population (estimated) Connections
Rolling Hills 490 1838 684
Rolling Hills 590 3477 1244
Total 64,000 17,975
II. SAMPLING INFORMATION
This section provides a summary of WAC-246-290-300, WAC-246-290-320, WAC-246-290-480
and 40 CFR 141.201 – 208 as it relates to bacteriological monitoring. Reference these codes for
complete information.
1) Routine Samples:
Per WAC 246-290-300, the minimum number of monthly routine samples required by the
Washington State Department of Health is 90. On a weekly schedule at least 23 samples are
collected from the 25 sites listed in subsection 3 of this section and one sample is collected from
each source that is in operation when the sampling is performed.
2) Repeat Samples:
Per WAC 246-290-320(2)(a), for each colifom presence sample that is not invalidated:
i) the City shall ensure that the sample is analyzed for E. coli or fecal coliforms,
ii) triggered source water monitoring is conducted per WAC-246-290-320(2)(g),
iii) the Department of Health is notified in accordance with WAC-246-290-480,
iv) repeat samples are collected in accordance with WAC-246-290-320(2)(b);
v) and the cause of the coliform presence is determined and corrected.
Repeat samples shall be collected and submitted for analysis within 24 hours of being notified
by the lab of the coliform presence sample. Three repeat samples shall be collected, one each
at:
• the site of the original sample,
• within 5 active services upstream of the site of the original sample,
• and within 5 active services downstream of the site of the original sample.
Repeat sample sites are identified in subsection 3 of this section.
3) Routine Sample and Repeat Sample - Sampling Site Locations:
WQ Data Base
ID
Coliform Sampling
Station
Downstream Repeat Sites Upstream Repeat Sites
MS030 SE 4th St. & Chelan Ave SE
(sampling station)
318 Chelan Ave SE (hose
bib)
4524 SE 4th St. (hose bib)
312 Chelan Ave SE (hose
bib)
4518 SE 4th St. (hose bib)
RES003 Hazen Reservoir north
most station (sampling
station marked coliform)
4807 NE 13th Pl. (hose bib) 1300 Duvall Ave NE, Bldg F
of Honey Creek Apts (hose
bib)
4813 NE 13th Pl (hose bib) 1300 Duvall Ave NE, Bldg
E of Honey Creek Apts
(hose bib)
MS034 1622 Hoquiam Pl. NE
(sampling station)
1621 Hoquiam Pl. NE (hose
bib)
1609 Hoquiam Pl. NE
(hose bib)
1625 Hoquiam Pl. NE (hose
bib)
1605 Hoquiam Pl. NE
(hose bib)
MS029 1718 Monroe Ave NE
(sampling station)
3325 NE 17th Pl. (hose bib) 1718 Monroe Ave NE
(hose bib)
3324 NE 17th Pl. (hose bib) 1717 Monroe Ave NE
(hose bib)
PS001 Highlands Booster Pump
Station (hose bib off of
main)
1204 Monroe Ave NE (hose
bib)
3501 NE 12th St. (hose bib)
1210 Monroe Ave NE (hose
bib)
1203 Pierce Pl NE (hose
bib)
PS028 City Public Works Shops
(lab faucet)
City Shops Bldg C (sink) Hydrant NE 518
Hydrant NE 517 (behind
Bldg C)
Hydrant NE 514
MS027 NE 43rd St. & Jones Ave
NE (sampling station)
Hydrant NE 12 Hydrant NE 338
1717 NE 43rd St (hose bib) Hydrant NE 11
MS033 2510 Meadow Ave N
(sampling station)
2509 Meadow Ave N (hose
bib)
2510 Meadow Ave N
(hose bib)
2515 Meadow Ave N (hose
bib)
2604 Meadow Ave N
(hose bib)
MS043 Coulon Beach Park
(sampling station SE
corner of northern most
bathroom. Loop end of
road)
2727 Mountain View Ave N
(hose bib)
Park Maintenance Bldg
2731 Mountain View Ave N
(hose bib)
Kidd Valley Restaurant
(restroom faucet)
PS011 Houser Way Booster
Pump Station (bathroom
sink)
1655 N 4th St (hose bib) 1530 N Marion St
(hose bib)
1675 N 4th St (hose bib) 1544 N Marion St (hose
bib)
WQ Data Base
ID
Coliform Sampling
Station
Downstream Repeat Sites Upstream Repeat Sites
MS032 Lind Ave NW & Taylor
Ave NW (sampling
station south side of
intersection)
463 Lind Ave NW
(hose bib)
521 Lind Ave NW
(hose bib)
472 Lind Ave NW
(hose bib)
529 Taylor Ave NW
(hose bib)
MS044 552 Raymond Pl NW
(sampling station)
540 Raymond PL NW
(hose bib)
12421 84th Ave S (hose
bib)
552 Raymond PL NW
(hose bib)
12433 84th Ave S
(hose bib)
pH_Smpl_Site_8 Williams Ave S & S Tobin
St
78 Williams Ave S
(hose bib)
806 N Riverside Dr
(hose bib)
79 Williams Ave S
(hose bib)
100 Williams Ave N
(hose bib)
PS025 Rolling Hills Booster
Pump Station (hose bib
in recirculation pump
room)
1712 Edmonds Ave SE
(hose bib)
Hydrant S 258
1707 Edmonds Ave SE
(hose bib)
Hydrant SW 290
MS041 Royal Hills Apartments
(sampling station)
Hydrant SE 74 Hydrant SE 73
Hydrant SE 75 Hydrant SE 72
PS005 N Talbot Booster Pump
Station (hose bib off of
water main, 490 Zone)
1300 S Puget Drive,
Heritage Hills Apts
(hose bib left side of office)
No upstream taps.
2022 S Puget Drive
(restroom sink)
No upstream taps.
MS036 432 S 26th St (sampling
station)
505 S 26th St (hose bib) 432 S 26th St (hose bib)
511 S 26th St (hose bib) 428 S 26th St (hose bib)
POE13 Springbrook Springs
(sampling station on
driveway)
Hydrant S 432 No upstream taps
19221 Talbot Rd S (hose
bib)
No upstream taps
MS049 901 SW 27th St (Sampling
Station)
Hydrant SW 615 Hydrant SW 415
Hydrant SW 091 Hydrant SW 416
MS028 S 180th & West Valley
Hwy (sampling station)
17850 W Valley Hwy
(hose bib)
7200 SW 180th (hose bib)
17750 W Valley Hwy
(hose bib)
7220 SW 180th
(hydrant in front of bldg)
MS042 601 Monster Rd SW
(sampling station)
Hydrant SW 603 600 Oakesdale Ave SW
(hose bib)
Hydrant SW 156 1300 SW 7th St (hose bib)
MS026 806 High Ave S (sampling
station)
802 High Ave S (hose bib) 803 High Ave S (hose bib)
806 High Ave S (hose bib) 810 High Ave S (hose bib)
MS031 Maplewood Golf Course
(sampling station east of
clubhouse)
No downstream taps. Maplewood Treatment
Facility (lab sink)
No downstream taps. Golf Course Clubhouse
(men’s restroom sink)
WQ Data Base
ID
Coliform Sampling
Station
Downstream Repeat Sites Upstream Repeat Sites
PS010 Maplewood 565 Zone
Sample Tap @
Maplewood Treatment
Facility (in lab)
174 Madrona Dr, Sunnydale
Mobile Home Park (hose
bib)
No upstream taps.
151 Madrona Dr, Sunnydale
Mobile Home Park (hose
bib)
No upstream taps.
PS009 West Hill Booster Pump
Station (hose bib on
main-495 Zone)
Hydrant NW 002 Hydrant N 215
Hydrant NW 010 Hydrant N 274
4) Coliform Presence In Repeat Samples
When repeat samples are found to have coliform presence the City shall immediately contact
the Department of Health and proceed as required by WAC-246-290-320(2)(b)(v).
5) Invalid Samples
Per WAC 246-290-320(2)(d) a certified laboratory, the analyzing laboratory or the Department
of Health may determine that a sample is invalid. Follow up sampling is required within 24
hours of the determination that a sample is invalid. Contact the Department of Health for
guidance.
6) Month Following Unsatisfactory Sample
Because the City collects 90 plus samples each month. This requirement is addressed and no
further action is required.
7) Public Notification (see 40 CFR 141.201 – 208 for complete requirements)
Tier 1 Public Notice Requirements:
Groundwater systems with an E. coli positive source water sample that is not invalidated under
WAC-246-290-320(2)(g)(vii), must:
i) provide a Tier 1 public notice under Part 7, Subpart A, of WAC-246-290 and special
notification under WAC-246-290-71005 (4) and (5).
ii) If directed by the Department of Health, take corrective action as required under WAC-246-
290-453(1); and
iii) Systems that are not directed by the Department of Health to take corrective action must
collect five additional samples from the same source within 24 hours of being notified of the
E. coli positive source water sample. If any of the five additional samples are E. coli positive,
the system must take corrective action under WAC-246-290-453(1).
Tier 2 Public Notice Requirements:
i) Groundwater systems that fail to meet any of the monitoring requirements of WAC 246-
290-320(2)(g), Triggered Source Water Monitoring, must conduct Tier 2 public notification
under Part 7, Subpart A of WAC 246-290.
Tier 3 Public Notice Requirements:
i) As required under Part 7, Subpart A of WAC 246-290.
8) Supplier System / Receiver System Notification
Any consecutive groundwater system that has a total coliform-positive routine sample collected
under WAC 246-290-300(3) and not invalidated under WAC-246-290-320(2)(d), must notify each
wholesale system it receives water from within 24-four hours of being notified of the total
coliform-positive sample and comply with WAC-246-290-320(2)(g), Triggered Source Water
Monitoring.
i) A wholesale groundwater system that receives notice from a consecutive system under
WAC-246-290-320(2)(g)(vi) must conduct triggered source water monitoring under WAC-
246-290-320(2)(g) the Department of Health determines and documents in writing that the
total coliform-positive sample collected was caused by a distribution system deficiency in
the consecutive system.
ii) If the wholesale groundwater system source sample is E. coli positive, the wholesale system
must notify all consecutive systems served by that groundwater source within twenty-four
hours of being notified of the results and must meet the requirements of WAC-246-290-
320(2)(g)(v)
iii) Any consecutive groundwater system receiving water from a source with an E. coli positive
sample must notify all their consumers as required under WAC-246-290-320(2)(g)(v)(A)
III. PUBLIC NOTIFICATION
1) Notification Content Assistance and Approval
i) Washington State Department of Health
Coordinate with the Washington State Department of Health, Division of Environmental
Health, Office of Drinking Water, Northwest Regional Office (DOH) to issue public
notifications, unless the urgency is immediate and coordination with DOH is not possible.
The Department of Health staffs a Public Information Office headed by a Public Information
Officer. The Department of Health Public Information Officer will coordinate with the City
to issue tier 1 public notifications.
Department of Health:
Buisness Hours:
Carol Stuckey, Coliform Program Manager: 253-395-6775
After hours:
Office of Drinking Water Hotline: 1-877-481-4901
ii) City of Renton – Public Information Officer
Public notification messages should be approved by the Public Information Officer, City of
Renton Executive Department, Communications Division, unless the urgency is immediate
and coordination with the Communications Division is not possible. The Public Information
Officer will assist with message delivery means and methods.
Renton Public Information Officer:
Business hours: 425-430-6569
After hours: 206-491-8158
iii) City of Renton – Emergency Management Duty Officer
After hours contact for the Mayor, Chief Executive Officer, Public Works Director and other
public officials can be obtained from the Emergency Management Duty Officer.
Renton Emergency Management Duty Officer:
Business hours: 425-430-7027
After hours: 425-430-2720
2) Notification Delivery
Methods to convey public notification include:
• City of Renton emergency information web at rentonwa.gov
• CodeRED emergency notification system
• Posting information at neighborhood information centers
• Posting information at City facilities
• Social media outlets
• Government Access Channel (Channel 21)
• Broadcast media (television and radio)
• Newspapers and other print media
• Electronic media
• Community meetings and other outreach activities
3) Department of Health Responsibility
The Department of Health and the City of Renton Communications Division are available to
assist with public notification as required by Federal and State law. The Department of Health is
not required to issue public notification. It is exclusively the responsibility of the City of Renton
to comply with the public notification requirements of 40 CFR 141.201 – 208.
The water testing laboratory that finds the e-coli positive sample is not required to notify the
Department of Health. The City should always notify the Department of Health of an E. coli
positive sample or other water quality related issue.
The City is currently developing protocol for the Public Works Department to follow for public
notification. As of the development of this plan, the protocol is not available.
IV. PLAN PREPARATION INFORMATION
1) Prepared by: Tom Malphrus
a. Title: Water Utility Engineer
b. Phone Number: 425-430-7313
c. Date Prepared: August 29, 2011
2) Reviewed By: J. D. Wilson
a. Title: Water Utility Engineer
b. Phone Number: 425-430-7295
c. Date Reviewed: September 6, 2012
3) Reviewed By: Craig Pray
a. Title: Water Maintenance Supervisor
b. Phone Number: 425-430-7400
c. Date Reviewed: September 5, 2012
V. MAP
See attached overview map and individual site maps.
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075 MG
Rolling
Hills
494 Reservoir
Springbrook
Springs Upper
GallerySpringbrook
Springs Lower
Gallery
HighlandsBPS
Tiffany
Park BPS
SouthTalbot
BPS
West HillReservoir
Monroe
Avenue
BPS
North
Talbot
Reservoir
SpringbrookSprings
Treatment Bldg
SouthTalbot
Reservoir
RollingHills 594
Reservoir
Rolling
Hills
BPS
NorthTalbot
BPS
Mt Olivet Reservoir
West
Hill BPS
Houser
WayBPS
Maplewood
BPS Chlorine
Contact
Basin
Maplewood
Clearwell
Highlands 2.0 MG
435 Reservoir
Highlands
1.5 MG - 435
Maplewood CCB
Fred Nelson BPS
Highlands
Re-chlorination Station
HazenReservoir
BensonBenson
KennydaleKennydale
WestWest
HillHill
ValleyValley
City CenterCity Center
HighlandsHighlands
CedarCedar
RiverRiver
FairwoodFairwoodTalbotTalbot
MaplewoodMaplewood
CommunityCommunity
ParkPark
Soos CreekSoos Creek
Park andPark and
TrailTrail
Soos CreekSoos Creek
Park andPark and
TrailTrail
CavanaughCavanaugh
NaturalNatural
AreaArea
Cedar RiverCedar River
NaturalNatural
ZoneZone
MayMay
CreekCreek
ParkPark
Black RiverBlack River
RiparianRiparian
ForestForest
CoalCoal
CreekCreekParkPark
CougarCougar
MountainMountain
May
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r
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g
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r
o
o
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Cr
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Black
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r
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w
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r
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r
Lake
Boren
Panther
Lake
Lake
Washington
PW-10PW-11
PW-17
PW-12
EW-3
RW-1RW-2
RW-3 PW-8
PW-9
PW-5A
PW-4
MS026
MS031
MS032
MS043
MS036
MS044
MS030
MS033
pH_Smpl_Site_8
POE13
PS028
MS029
MS049
MS028
MS041
MS034
MS042
MS027
SW541
NW040
μ
00.510.25 Miles
G!.Stage 2 Disinfection Sampling Station-Hydrants
"Îi Stage 2 Disinfection and Coliform Sampling Station
"Îi Coliform Sampling Stations
UT EnclosedStorageFacility
[Ú PumpStationDSpring
KJ StorageBasin
3Q TreatmentPlant
&%ProductionWell
Coal Creek WD 440 Pressure Zone
Earlington 370 Pressure Zone
East Talbot Hill 300 Pressure Zone
Highlands 435 Pressure Zone
Highlands 565 Pressure Zone
Kennydale 218 Pressure Zone
Kennydale 320 Pressure Zone
Kent 240 Pressure Zone
Maplewood 79 Pressure Zone
Rolling Hills 395 Pressure Zone
Rolling Hills 490 Pressure Zone
Rolling Hills 590 Pressure Zone
Scenic Hill 370 Pressure Zone
Seattle Public Utilities 520 Pressure Zone
Skyway WD 460 Pressure Zone
Talbot Hill 350 Pressure Zone
Tukwila 360 Pressure Zone
Valley 196 Pressure Zone
West Hill 300 Pressure Zone
West Hill 495 Pressure Zone
West Talbot Hill 300 Pressure Zone
H:\File Sys\WTR - Drinking Water Utility\WTR-09 - Plans\WTR-09-0023 - 2012 Water System Plan\Maps\Routine Coliform Sampling Sites and Stage 2 DBP Sample Sites.mxd
City of Renton Routine
Coliform Sampling Sites and
Stage 2 DBP Sample Sites
NW066
Coordinate System: NAD 1983 HARN StatePlane Washington North FIPS 4601
Projection: Lambert Conformal Conic
Datum: North American 1983 HARN
Data Sources: City of Renton, King County
This document is a graphic representation, not guaranteed
to survey accuracy, and is based on the best information
available as of the date shown. This map is intended for
City display purposes only.
Public Works Department,
Water Utiliity,
Engineering Division
mapsupport@rentonwa.gov
Printed on: 08/29/2012
Coliform Routine Sample Site RES003
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site PS028
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site PS025
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
4,800
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
800 0 400800 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site PS011
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
949
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
158 0 79158 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Sample Site PS010 - Page 2
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
2,400
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
09/06/2012
Legend
400 0 200400 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Sample Site PS010 - Page 1
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
09/06/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site PS009
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
2,097
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
350 0 175350 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site PS005
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,828
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
305 0 152305 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site PS001
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site POE13
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,351
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
225 0 113225 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site pH_Smpl_Site_8
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site MS049
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,525
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
254 0 127254 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS044
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
726
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
121 0 60121 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site MS043 - Upstream
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
2,400
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
400 0 200400 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site MS043 - Downstream
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS027
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS042
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
3,168
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
528 0 264528 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site MS041
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,922
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
320 0 160320 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site MS036
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
658
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
110 0 55110 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site MS034
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS033
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,200
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS032
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
748
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
125 0 62125 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Plug
Reducer
ReducingCoupling
Riser
ServiceSaddle
ServiceSaddleWithStop
Sleeve
Spool
Tap
TappingSleeve
Tee
VerticalCross
Weld
Coliform Routine Sample Site MS031
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
2,369
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
395 0 197395 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site MS030
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
480
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
80 0 4080 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS029
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
881
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/28/2012
Legend
147 0 73147 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS028
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
2,024
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
337 0 169337 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Main Other System
Pressurized Pipe - By Pressure Zone
<all other values>
TH270, -1
TH270, 3
TH270, 8
TH270, 12
TH270, 16
<Null>, 2-1/2-inch
Coal Creek WD 440 Pressure Zone, 2-inch
Coal Creek WD 440 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, 12-inch
Earlington 370 Pressure Zone, 2-inch
Earlington 370 Pressure Zone, 3-inch
Earlington 370 Pressure Zone, 4-inch
Earlington 370 Pressure Zone, 6-inch
Earlington 370 Pressure Zone, 8-inch
Earlington 370 Pressure Zone, Other
East Talbot Hill 300 Pressure Zone, 10-inch
East Talbot Hill 300 Pressure Zone, 12-inch
East Talbot Hill 300 Pressure Zone, 16-inch
East Talbot Hill 300 Pressure Zone, 2-inch
East Talbot Hill 300 Pressure Zone, 3-inch
East Talbot Hill 300 Pressure Zone, 8-inch
East Talbot Hill 300 Pressure Zone, Other
Fictitious, Other
Highlands 435 Pressure Zone, 1-inch
Highlands 435 Pressure Zone, 1/2-inch
Highlands 435 Pressure Zone, 10-inch
Highlands 435 Pressure Zone, 12-inch
Highlands 435 Pressure Zone, 14-inch
Highlands 435 Pressure Zone, 16-inch
Highlands 435 Pressure Zone, 2-1/2-inch
Highlands 435 Pressure Zone, 2-inch
Highlands 435 Pressure Zone, 24-inch
Highlands 435 Pressure Zone, 3-inch
Highlands 435 Pressure Zone, 3/4-inch
Highlands 435 Pressure Zone, 4-inch
Highlands 435 Pressure Zone, 6-inch
Highlands 435 Pressure Zone, 8-inch
Highlands 435 Pressure Zone, Other
Highlands 565 Pressure Zone, 1-inch
Highlands 565 Pressure Zone, 1/2-inch
Highlands 565 Pressure Zone, 10-inch
Highlands 565 Pressure Zone, 12-inch
Highlands 565 Pressure Zone, 16-inch
Highlands 565 Pressure Zone, 2-inch
Highlands 565 Pressure Zone, 3/4-inch
Highlands 565 Pressure Zone, 4-inch
Highlands 565 Pressure Zone, 6-inch
Highlands 565 Pressure Zone, 8-inch
Kennydale 218 Pressure Zone, 1-inch
Kennydale 218 Pressure Zone, 10-inch
Kennydale 218 Pressure Zone, 2-1/2-inch
Kennydale 218 Pressure Zone, 2-inch
Kennydale 218 Pressure Zone, Other
Kennydale 320 Pressure Zone, 1-inch
Coliform Routine Sample Site MS027
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
1,201
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
200 0 100200 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
Coliform Routine Sample Site MS026
This map is a user generated static output from an Internet mapping site and
is for reference only. Data layers that appear on this map may or may not beaccurate, current, or otherwise reliable.
687
THIS MAP IS NOT TO BE USED FOR NAVIGATION
1:
NAD_1983_HARN_StatePlane_Washington_North_FIPS_4601
Notes
08/29/2012
Legend
115 0 57115 Feet
J.D. Wilson
jwilson@Rentonwa.gov
Anode
Cathodic Protection Test Station
SCADA Sensor
Well
<all other values>
MonitoringWellCity
MonitoringWellPrivate
ProductionWell
ProductionWellOtherDistrict
Wellhead Protection Site
<all other values>
ContaminationSite
FacilityInspection
LUST
RCRASite
UST
Sampling Station
Control Valve
<all other values>
AirGap
AirVac
Altitude
ComboAirVacAirRelease
CVAirRelease
DCDA
DCVA
FlapCheck
FootCheck
RPBA
RPDA
SilentCheck
SingleCheck
SwingCheck
VacReliefAirInlet
System Valve
<all other values>
Ball
Butterfly
Cone
Diaphragm
Gate
GateFoot
GateShutoff
Plug
Fitting
<all other values>
Bend11Q
Bend22H
Bend45
Bend90
BlindFlange
CorpStop
CouplingAdapter
Cross
EndCap
ExpansionJoint
Offset
VI. DEPARTMENT OF HEALTH PRESS RELEASE TEMPLATE (Attached)
Your logo or
company name here. News Release
For Immediate Release: <DATE>
Contact: Water purveyor/system contact name and telephone number
<Water System> announces boil water advisory for all customers in <area>
CITY NAME The <SYSTEM NAME> is advising all water customers to boil their drinking
water after recent samples showed the presence of <fecal coliform, E. coli, total coliform>. The
Washington State Department of Health (DOH) has been notified and <SYSTEM NAME> is
working closely with the Office of Drinking Water to find the source of contamination and fix
the problem, which may include disinfecting the system. The boil water advisory will remain in
effect until further notice.
<System spokesperson quote> (e.g. “We are doing all we can to eliminate the bacteria from the
water system. Safe and reliable drinking water is critical to good health and responding to this
kind of emergency is our highest priority,” said system spokesperson.)
<NUMBER or NO> illnesses related to the community’s drinking water have been reported. To
correct the problem <WHAT IS BEING DONE> (e.g. Chlorine was applied to the entire system
on DATE.)
The boil water advisory includes several precautionary steps that customers should take. These
include using purchased treated bottled water or boiled water for any water that might be
consumed: drinking, brushing teeth, dishwashing, preparing food and making ice. Water should
come to a rolling boil for one minute, then allowed to cool before using.
The advisory will remain in effect until <SYSTEM NAME> and DOH are confident there is no
longer a threat of illness to their customers. Once satisfactory results are reported, customers
will be notified that the advisory has been lifted.
If you have any questions, please call us at <TELEPHONE NUMBER>.
###
10-17-08
Appendix B
To Drinking Water Quality Monitoring Program
Stage 2 Disinfectants & Disinfection Byproducts Rule Monitoring
Plan
The plan consists of six components:
I. SYSTEM INFORMATION
II. SAMPLING INFORMATION
III. MAPS
IV. PLAN PREPARATION INFORMATION
I. SYSTEM INFORMATION
System Name: City of Renton
Public Water System ID #: 71850L
Location: King County, Washington
II. SAMPLING INFORMATION
Sampling Period: Quarterly, beginning the second week of May, 2012
Number of Sample Required: 8 dual sets (Total Trihalomethanes & Haloacetic Acids)
Sampling Locations:
Name Water Quality
Database ID
Used in Stage 1 DBPR
Sampling
Comments
Sampling Station - 600
block of Monster Rd.
SW
MS042 Yes
Sampling Station - 1622
Hoquiam Pl. NE
MS034 Yes
Sampling Station - 3000
Royal Hills Dr.
MS041 Yes
Sampling Station - Jones
Ave NE & NE 43rd St
MS027 No Replaces Fire Hydrant
NE360 used in Stage I
sampling. Captures
same zone but provides
better sampling
functionality.
Sampling Station - S
180th & West Valley
Hwy
MS028 No Added for Stage II
sampling. Best
probability for
capturing Springbrook
Springs source water.
Fire Hydrant SW541 DBP_Smpl_Site_8 Yes
Fire Hydrant NW040 DBP_Smpl_Site_7 Yes
Fire Hydrant NW066 DBP_Stage2_7 No Added for Stage II
sampling. Captures
West Hill 495 Zone after
a long main run.
Compliance:
Each quarter calculate the locational running annual average (LRAA) for Total Trihalomethanes (TTHM) and
Haloacetic Acids (HAA5) for each monitoring location. Compliance will be achieved if the TTHM and the HAA5
LRAA at each monitoring location for the four most recent quarters is less than or equal to 0.080 mg/L for TTHM
and less than or equal to 0.060 mg/L for HAA5.
Disinfectant Monitoring:
Chlorine residuals must be measured at the same time and place as routine or repeat coliform samples. The
MRDL for chlorine and chloramines = 4.0 mg/l as CL2.
Disinfectant Monitoring Compliance:
Compliance is based on the running annual average (RRA) of 12 consecutive months. Daily residual
measurements will be included in the compliance calculations.
III. MAPS
Sample Site Maps are attached.
The system map is located in Appendix F of the Comprehensive Water System Plan.
IV. PLAN PREPARATION INFORMATION
1) Prepared by: Tom Malphrus
a. Title: Water Utility Engineer
b. Phone Number: 425-430-7313
c. Date Prepared: January 25, 2012
2) Reviewed By: Abdoul Gafour
a. Title: Utility Engineering Supervisor
b. Phone Number: 425-430-7210
c. Date Reviewed: January 30, 2012
3) Reviewed By: Ray Sled
a. Title: Water Maintenance Manager
b. Phone Number: 425-430-7400
c. Date Reviewed: January 31, 2012
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Appendix I
DEMOGRAPHIC PROJECTION METHODOLOGY
February 2, 2012 - DRAFT 1
pw://Carollo/Documents/Client/WA/Renton/8595A00/Deliverables/Appendices/App_I
City of Renton
APPENDIX I – DEMOGRAPHIC AND DEMAND PROJECTION
METHODOLOGY
This appendix describes the methodology used to develop demographic and water demand
projections for the City of Renton’s (City’s) Water System Plan Update (Plan). Projecting a realistic
future water demand is necessary for planning infrastructure projects and securing adequate water
supply to meet future growth.
1.0 AVAILABLE DATA SOURCES
This section summarizes the available sources of information used to develop the demographic
and water demand projections summarized in Chapter 3 of the City’s Water System Plan Update
Report.
1.1 Puget Sound Regional Council
Population, employment, and household projections developed by the Puget Sound Regional
Council (PSRC) form the backbone of the demographic and population projections for the Water
System Plan Update.
The PSRC Population, Households, and Employment Forecast database contains historical and
future year estimates of key demographic and employment values for the Puget Sound region by
forecast analysis zone (FAZ). FAZs are the geographic units used by the PSRC to report its small
area forecasts of population, households, and employment. They are built up from traffic analysis
zones (TAZs), with each FAZ containing between 1 to 20 TAZs. Data provided in the PSRC
database is available in ten-year increments, starting with 1980 and extending through 2040.
Because the City’s retail water service area (RWSA) and pressure zone boundaries do not
coincide with the PRSC FAZ boundaries or TAZ boundaries, City staff allocated the key
demographic and employment variables (total households, total population, total employment) to
each pressure zone within the RWSA using geographic information system (GIS) techniques. The
City provided the resulting demographic projections in excel spreadsheet format through year
2040.
1.2 Historical Account and Water Production/Consumption Data
The City provided historical account information by pressure zone and account type for the years
of 2004 through 2010. In addition, the City provided historical water consumption data by customer
class and production data for years 2004 to 2009. These data were not broken down by pressure
zone.
February 2, 2012 - DRAFT 2
pw://Carollo/Documents/Client/WA/Renton/8595A00/Deliverables/Appendices/App_I
1.3 2006 Buildable Lands Database
The City planning department provided a copy of its 2006 Buildable Lands Database spreadsheet
in excel format. The information presented in this spreadsheet, however, is applicable to the City of
Renton as a whole, not specifically to the RWSA. Furthermore, shapefiles related to the Buildable
Lands Database (i.e., vacant land, etc.) were not available in order to be able to break out which
parcels should apply to the RWSA by pressure zone. Therefore, the usefulness of the Buildable
Lands Database to develop demographic projections by pressure zone was limited.
1.4 City Zoning Map
The City’s zoning map was provided in GIS format. This map was used in conjunction with the
City’s list of vacant parcels to determine the vacant land area per pressure zone by zoning
designation.
1.5 List of Vacant Parcels
The City’s water department provided a list of vacant parcels within the RWSA in excel
spreadsheet format. This list was transferred into GIS to determine the vacant land area per
pressure zone by zoning type.
1.6 Redevelopment Area Environmental Impact Statements
The City identified two redevelopment areas for which detailed demographic information has been
developed. These are the Regional Urban Center and the Sunset Area Community Planned Action
areas. Two environmental impact statements (EISs) were provided with demographic projections
for these areas. These are the Boeing Renton EIS and the Sunset Area Community Planned
Action EIS.
2.0 DEMOGRAPHIC PROJECTIONS
The demographic projections used in the City’s Water System Plan Update are based on Total
Population, Total Households, and Total Employment projections per pressure zone. The following
steps summarize how the demographic projections were developed:
Step 1 - Estimate Infill Capacity: This was accomplished by quantifying the infill potential of
each pressure zone and adding it to the existing developed land. For each pressure zone,
the total area of vacant land by zoning type was identified based on the list of vacant parcels
generated by the City’s water division. The vacant land totals were then converted to
numbers of households, population, and employees using the residential and commercial
density assumptions (e.g., households per acre). The infill capacity herein defined is
therefore existing development plus development of currently vacant lands.
Step 2 - Estimate Projections from PSRC: The future number of households, population,
and employees was estimated from the PSRC data for each pressure zone. In all pressure
zones, the estimated PSRC growth exceeded the infill capacity identified in Step 1 by the
February 2, 2012 - DRAFT 3
pw://Carollo/Documents/Client/WA/Renton/8595A00/Deliverables/Appendices/App_I
year 2040. This indicates that the PSRC projections anticipate all vacant lands be
developed, plus additional redevelopment occurs to reach the growth projections by the year
2040. The estimated projections for the year 2070 assume linear growth continues beyond
2040.
Step 3 – Revise Location of Growth: The City anticipates that the growth projected by the
PSRC will likely occur in the two identified redevelopment areas. These areas overlap the
Highlands 435, Highlands 565, Kennydale 320, and Valley 196 Zones. The net increase in
growth from the redevelopment areas was added to these pressure zones (using the highest
density redevelopment provided in the EISs). Per City staff, the Regional Urban Center is not
expected to be fully built out until the 2070 time frame. Build out of the Sunset Area is
assumed to occur by 2030, based on the Sunset Area Community Planned Action EIS. The
demographic growth was phased linearly according to these projections.
Step 4 - Establish the Base Growth Scenario: The base growth scenario assumes a
development “cap” that only allows infill and the redevelopment from the Sunset and RUC
areas. To estimate this, the household, employment, and population growth for each
pressure zone was limited to the infill capacity plus the redevelopment assumptions. Each
pressure zone was allowed to grow until it reached the growth cap for households,
population, and employment. The build out year for each pressure zone was assumed to be
when the growth projections intersect with the calculated growth “cap.” An example of this
process is illustrated below.
The attached Tables D-1 through D-6 summarize the projected population, employment, and
number of households per pressure zone through 2071. Demographic growth charts per pressure
zone are also attached for reference (Figures D-1 through D-16).
0
10
20
30
40
50
60
70
2011202120312041205120612071
Ho
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P
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s
Year
PSRC Projection Per Zone
Calculated Growth "Cap"
Water System Plan Projection
Projected Build Out Year
February 2, 2012 - DRAFT 4
pw://Carollo/Documents/Client/WA/Renton/8595A00/Deliverables/Appendices/App_I
3.0 ACCOUNT PROJECTIONS
The next step in the development of the projected water demands was to transform the projected
demographic increases into increases in the number of connections. The population, household,
and employment projections were converted into percentage growth rates for each pressure zone
relative to the 2010 population, household, and employment values developed by the PSRC.
The future number of connections per pressure zone were determined by multiplying the accounts
in 2010 by the derived growth rates per zone. Residential accounts were multiplied by the total
household growth rates. Commercial, industrial, and irrigation accounts were multiplied by the
employment growth rates.
Table A-1 summarizes the projected number of accounts per pressure zone. Account projections
per pressure zone are also shown on Figures A-1 through A-16.
4.0 EQUIVALENT RESIDENTIAL UNIT PROJECTIONS
Once the number of projected connections were determined per pressure zone, these connections
were converted into the number of equivalent residential units (ERUs) by multiplying the projected
number of accounts provided by the number of ERUs per account (see Chapter 3 text for more
information on how this was calculated).
It should be noted that the number of ERUs does not include unaccounted for water,
miscellaneous water use, wholesale, and large water user demand. Water demands associated
with these elements were considered separately and added on top of the computed water
demands by pressure zone.
Table E-1 summarizes the projected number of ERUs per pressure zone. Figure E-1 shows the
projected number of ERUs in the RWSA through 2071.
5.0 WATER DEMAND PROJECTIONS
The projected average day demands (ADD) per pressure zone was determined by multiplying the
projected number of ERUs by the demand per ERU (171 gpd/ERU). In addition, unaccounted for
water, miscellaneous water use, and wholesale water to project the total average day demand
were also added, as described below:
Unaccounted-for Water: Unaccounted-for water fluctuated between 15.8 percent and 20.2
percent of the total City production between 2004 and 2009, with an average of 17.8 percent.
The demand projections assume that unaccounted-for water will continue to account for
roughly 17.8 percent of the total City demand through year 2071.
Other Authorized Water Consumption: Other authorized water consumption fluctuated
between 0.38 and 0.88 percent of the total City production between 2004 to 2009, with an
average of 0.57 percent. The demand projections assume that other authorized water
consumption will account for 0.57 percent of total City demand through 2071. However,
February 2, 2012 - DRAFT 5
pw://Carollo/Documents/Client/WA/Renton/8595A00/Deliverables/Appendices/App_I
tracking of this demand is anticipated to grow as the City improves tracking of other
authorized uses.
Wholesale Water Consumption to Skyway: Wholesale demands for Skyway are taken
from the Skyway Water and Sewer District Comprehensive Plan - Water and Sewer
Systems. Forecast demands were only available through 2022. Skyway wholesale water
demands from 2031 through 2071 are assumed to be equal to the 2022 demands.
Top Water Users: The City has two additional customers that are considered large water
users: the Boeing Plant and the King County Wastewater Treatment Plant. For the purposes
of the future water demand projections, it was assumed that the King County Wastewater
Treatment Plant and the Boeing Plant’s water demand would not increase in the future.
Based on consumption data provided by the City for these two users, there was a downward
trend in water demand from these customers from 2004 to 2009.
The projected maximum day demand (MDD) is simply the projected ADD multiplied by the
MDD/ADD factor of 1.83 (see Chapter 3 for derivation of this value). The projected MDD for the
Skyway Wholesale demand was based on the projections provided from the 2005 Skyway
Comprehensive Plan.
Tables W-1 and W-2 provides the projected ADD and MDD by customer type per pressure zone.
Table W-3 summarizes the ADD and MDD by pressure zone. Figure W-1 provides a visual
representation of the projected system-wide ADD and MDD.
DEMOGRAPHIC GROWTH PROJECTION TABLES BY PRESSURE ZONE
Table D-1 Total Household Forecasts By Pressure Zone
Table D-1 Water System Plan Update
Table D-1 City of Renton
Pressure Zone20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY1965,9125,9866,0606,1346,208 6,2826,3676,4526,7937,6468,4989,35010,20310,972
Exist + Vacant 5,9125,9145,9175,9195,9215,9235,9255,9275,9365,9585,9796,0016,0236,044
RUC Redevelopment0721432152873594425258571,6882,5193,3504,1804,928
Exist + Vac+RUC Redev5,9125,9866,0606,1346,2086,2826,3676,4526,7937,6468,4989,35010,20310,972
Pressure Zone KD218 5353535353535353535353535353
Pressure Zone KD3202,9433,0303,1163,2033,290 3,3773,4753,5733,9654,9455,9256,9047,8848,864
Exist + Vacant 2,9432,9492,9552,9602,9662,9722,9782,9843,0083,0663,1253,1843,2433,302
RUC Redevelopment0811622433244054975899571,8782,7993,7204,6415,562
Exist + Vac + RUC Redev 2,9433,0303,1163,2033,2903,3773,4753,5733,9654,9455,9256,9047,8848,864
Pressure Zone HLD4353,7493,7933,8363,8803,923 3,9674,0104,0544,2284,6224,6414,6614,6814,700
Exist + Vacant 3,7493,7513,7533,7553,7573,7593,7613,7633,7713,7913,8103,8303,8503,869
Sunset Redevelopment04283125166208249291457831831831831831
Exist + Vac+Suns Redev3,7493,7933,8363,8803,9233,9674,0104,0544,2284,6224,6414,6614,6814,700
Pressure Zone HLD5656,5366,6246,7136,8026,891 6,9807,0687,1577,5128,3178,3678,4188,4688,519
Exist + Vacant 6,5366,5416,5466,5516,5566,5616,5666,5716,5916,6426,6926,7436,7936,844
Sunset Redevelopment0841682513354195035869211,6751,6751,6751,6751,675
Exist + Vac+Suns Redev6,5366,6246,7136,8026,8916,9807,0687,1577,5128,3178,3678,4188,4688,519
Pressure Zone WH300 242242243244245245246247249256263263263263
Pressure Zone EARL370575583591599608616624632665747821821821821
Pressure Zone WH495 439441444446448450452454463484504504504504
Pressure Zone SH370 4646464647474747485052525252
Total Household Forecasts by Individual Pressure Zones
Pressure Zone ETH300 3636373738383939414651515151
Pressure Zone WTH300214215215216217218219219222230237237237237
Pressure Zone TH350 9909961,0021,0091,0151,0211,0271,0341,0591,1221,1781,1781,1781,178
Pressure Zone RH395 5252525252525252525252525252
Pressure Zone RH490 663669675681687693699705729788842842842842
Pressure Zone RH590 1,2561,2631,2711,2781,286 1,2931,3011,3081,3381,4141,4811,4811,4811,481
Total 23,70424,03024,35524,68025,00625,33125,67926,02727,41830,77032,96334,86536,76838,587
Table D-2 Total Population Forecasts By Pressure Zone
Table D-2 Water System Plan Update
Table D-2 City of Renton
Pressure Zone 20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY19613,39813,48513,57113,65713,743 13,82913,92914,02814,42715,43016,48517,54018,59419,550
Exist + Vacant 13,39813,39813,39813,39813,39813,39813,398 13,39813,39813,40413,46213,52013,57813,636
RUC Redevelopment0861722583444305306301,0292,0263,0224,0195,0165,914
Exist + Vac+RUC Redev13,39813,48513,57113,65713,74313,82913,929 14,02814,42715,43016,48517,54018,59419,550
Pressure Zone KD218 122122122122122122122122122122122122122122
Pressure Zone KD3206,4536,5516,6486,7456,842 6,9397,0507,1607,6028,7239,98611,24912,51213,775
Exist + Vacant 6,4536,4536,4536,4536,4536,4536,4536,4536,4536,4696,6276,7856,9427,100
RUC Redevelopment0971942913894865967071,1492,2543,3594,4645,5696,674
Exist + Vac+RUC Redev6,4536,5516,6486,7456,8426,9397,0507,1607,6028,7239,98611,24912,51213,775
Pressure Zone HLD4358,5468,6428,7388,8348,930 9,0269,1229,2189,60210,47110,52410,57710,62910,682
Exist + Vacant 8,5468,5468,5468,5468,5468,5468,5468,5468,5468,5518,6048,6578,7098,762
Sunset Redevelopment0961922883844805766721,0561,9201,9201,9201,9201,920
Exist + Vac+Suns Redev8,5468,6428,7388,8348,9309,0269,1229,2189,60210,47110,52410,57710,62910,682
PZHLD565 15248 15441 15635 15828 16022 16215 16409 16602 17376 19132 19267 19402 19537 19672
Total Population Forecasts by Individual Pressure Zones
Pressure Zone HLD565 15,248 15,441 15,635 15,828 16,022 16,215 16,409 16,602 17,376 19,132 19,267 19,402 19,537 19,672
Exist + Vacant 15,24815,24815,24815,24815,24815,24815,248 15,24815,24815,26115,39715,53215,66715,802
Sunset Redevelopment01943875817749681,1611,3552,1293,8703,8703,8703,8703,870
Exist + Vac+Suns Redev15,24815,44115,63515,82816,02216,21516,40916,60217,37619,13219,26719,40219,53719,672
Pressure Zone WH300 517517517517517517517517517518527536545554
Pressure Zone EARL3701,2391,2391,2391,2391,239 1,2391,2391,2391,2391,2501,3581,4661,5741,681
Pressure Zone WH495 9859859859859859859859859859871,0161,0441,0721,100
Pressure Zone SH370 108108108108108108108108108108111113116118
Pressure Zone ETH300 838383838383838383849197104111
Pressure Zone WTH300503503503503503503503503503504514524535545
Pressure Zone TH350 2,5152,5152,5152,5152,515 2,5152,5152,5152,5152,5232,6062,6882,7712,854
Pressure Zone RH395 122122122122122122122122122122122122122122
Pressure Zone RH490 1,5601,5601,5601,5601,560 1,5601,5601,5601,5601,5671,6461,7241,8031,881
Pressure Zone RH590 2,9522,9522,9522,9522,952 2,9522,9522,9522,9522,9623,0613,1603,2593,359
Total 54,35154,82455,29655,76956,24256,71557,21457,71459,71364,50367,43470,36473,29476,125
Table D-3 Total Employment Forecasts By Pressure Zone
Table D-3 Water System Plan Update
Table D-3 City of Renton
Pressure Zone 20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY19622,70023,00123,30123,60223,902 24,20324,50324,80426,00629,48336,72539,73042,73645,742
Exist + Vacant 22,70022,70022,70022,70022,70022,70022,700 22,70022,70023,17127,40727,40727,40727,407
RUC Redevelopment03016019021,2021,5031,8032,1043,3066,3129,31712,32315,32918,334
Exist + Vac+RUC Redev22,70023,00123,30123,60223,90224,20324,503 24,80426,00629,48336,72539,73042,73645,742
Pressure Zone KD218 126126126126126126126126126126126126126126
PressureZoneKD320 10555 11583 12469 13310 14150 14991 15285 15580 16758 19702 22647 25591 28536 31481
Total Employment Forecasts by Individual Pressure Zones
Pressure Zone KD320 10,555 11,583 12,469 13,310 14,150 14,991 15,285 15,580 16,758 19,702 22,647 25,591 28,536 31,481
Exist + Vacant 10,55510,74310,78810,78810,78810,78810,788 10,78810,78810,78810,78810,78810,78810,788
RUC Redevelopment08411,6812,5223,3624,2034,497 4,7925,9708,91411,85914,80317,74820,693
Exist + Vac+RUC Redev10,55511,58312,46913,31014,15014,99115,285 15,58016,75819,70222,64725,59128,53631,481
Pressure Zone HLD4351,4391,4941,5491,6041,660 1,7151,7701,8252,0462,5432,5432,5432,5432,543
Exist + Vacant 1,4391,4391,4391,4391,4391,4391,4391,4391,4391,4391,4391,4391,4391,439
Sunset Redevelopment0551101662212763313866071,1041,1041,1041,1041,104
Exist + Vac+Suns Redev1,4391,4941,5491,6041,6601,7151,7701,8252,0462,5432,5432,5432,5432,543
Pressure Zone HLD5652,4552,6102,7642,9193,038 3,1503,2613,3723,8184,8194,8194,8194,8194,819
Exist + Vacant 2,4552,4982,5422,5852,5932,5932,5932,5932,5932,5932,5932,5932,5932,593
Sunset Redevelopment01112233344455566687791,2242,2262,2262,2262,2262,226
Exist + Vac+Suns Redev2,4552,6102,7642,9193,0383,1503,2613,3723,8184,8194,8194,8194,8194,819
Pressure Zone WH3001,0081,0151,0151,0151,015 1,0151,0151,0151,0151,0151,0151,0151,0151,015
Pressure Zone EARL3702,2912,3312,3722,4122,453 2,4932,5342,5742,7422,8672,8672,8672,8672,867
Pressure Zone WH4951,3821,3821,3821,3821,382 1,3821,3821,3821,3821,3821,3821,3821,3821,382
Pressure Zone SH370180180180180180180180180180180180180180180
Pressure Zone ETH300139139139139139139139139139139139139139139
Pressure Zone WTH300838838838838838838838838838838838838838838
Pressure Zone TH3502,2672,2672,2672,2672,267 2,2672,2672,2672,2672,2772,3282,3782,4292,474
Pressure Zone RH395203203203203203203203203203203203203203203
Pressure Zone RH4902,5992,5992,5992,5992,599 2,5992,5992,5992,5992,6022,6182,6342,6502,664
Pressure Zone RH5904,9204,9204,9204,9204,920 4,9204,9204,9204,9204,9204,9204,9204,9204,920
Total53,10254,68856,12557,51658,87360,22161,02361,82565,03973,09783,34989,36695,382101,392
DEMOGRAPHIC GROWTH PROJECTION TABLES BY PRESSURE ZONE
Table D-4 Total Household Growth By Pressure Zone
Table D-4 Water System Plan Update
Table D-4 City of Renton
Pressure Zone20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY1960.0%1.2%2.5%3.7%5.0%6.2%7.7%9.1%14.9%29.3%43.7%58.2%72.6%85.6%
Pressure Zone KD2180.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone KD3200.0%3.0%5.9%8.9%11.8%14.8%18.1%21.4%34.7%68.0%101.3%134.6%167.9%201.2%
Pressure Zone HLD4350.0%1.2%2.3%3.5%4.6%5.8%7.0%8.1%12.8%23.3%23.8%24.3%24.8%25.4%
Pressure Zone HLD5650.0%1.4%2.7%4.1%5.4%6.8%8.2%9.5%14.9%27.3%28.0%28.8%29.6%30.3%
Pressure Zone WH3000.0%0.3%0.6%0.9%1.1%1.4%1.7%2.0%3.1%6.0%8.6%8.6%8.6%8.6%
Pressure Zone EARL3700.0%1.4%2.8%4.3%5.7%7.1%8.5%10.0%15.7%29.9%42.7%42.7%42.7%42.7%
Pressure Zone WH4950.0%0.5%1.0%1.5%2.0%2.4%2.9%3.4%5.4%10.2%14.6%14.6%14.6%14.6%
Pressure Zone SH3700.0%0.4%0.8%1.2%1.7%2.1%2.5%2.9%4.6%8.7%12.4%12.4%12.4%12.4%
Pressure Zone ETH3000.0%1.4%2.8%4.2%5.7%7.1%8.5%9.9%15.5%29.7%42.4%42.4%42.4%42.4%
Pressure Zone WTH3000.0%0.4%0.7%1.1%1.4%1.8%2.2%2.5%4.0%7.6%10.8%10.8%10.8%10.8%
Pressure Zone TH3500.0%0.6%1.3%1.9%2.5%3.2%3.8%4.4%7.0%13.3%19.0%19.0%19.0%19.0%
Pressure Zone RH3950.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone RH4900.0%0.9%1.8%2.7%3.6%4.5%5.4%6.3%9.9%18.9%27.0%27.0%27.0%27.0%
Pressure Zone RH5900.0%0.6%1.2%1.8%2.4%3.0%3.6%4.2%6.6%12.6%18.0%18.0%18.0%18.0%
Total0.0%1.4%2.7%4.1%5.5%6.9%8.3%9.8%15.7%29.8%39.1%47.1%55.1%62.8%
Table D-5 Total Population Growth By Pressure Zone
Table D-5 Water System Plan Update
Table D-5 City of Renton
Total Household Growth Rates by Individual Pressure Zones (Percent Growth Compared to 2010)
Pressure Zone 20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY1960.0%0.6%1.3%1.9%2.6%3.2%4.0%4.7%7.7%15.2%23.0%30.9%38.8%45.9%
Pressure Zone KD218 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone KD320 0.0%1.5%3.0%4.5%6.0%7.5%9.2%11.0%17.8%35.2%54.7%74.3%93.9%113.4%
Pressure Zone HLD4350.0%1.1%2.2%3.4%4.5%5.6%6.7%7.9%12.4%22.5%23.1%23.8%24.4%25.0%
Pressure Zone HLD5650.0%1.3%2.5%3.8%5.1%6.3%7.6%8.9%14.0%25.5%26.4%27.2%28.1%29.0%
Pressure Zone WH3000.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.2%1.9%3.7%5.5%7.2%
Pressure Zone EARL3700.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.9%9.6%18.3%27.0%35.7%
Pressure Zone WH4950.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.3%3.2%6.0%8.9%11.8%
Pressure Zone SH370 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.2%2.6%4.9%7.2%9.5%
Pressure Zone ETH3000.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.8%8.7%16.6%24.5%32.5%
Pressure Zone WTH3000.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.2%2.2%4.3%6.3%8.3%
Pressure Zone TH350 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.3%3.6%6.9%10.2%13.5%
Pressure Zone RH395 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone RH490 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.5%5.5%10.6%15.6%20.6%
Pressure Zone RH590 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.3%3.7%7.1%10.4%13.8%
Total 0.0%0.9%1.7%2.6%3.5%4.3%5.3%6.2%9.9%18.7%24.1%29.5%34.9%40.1%
Table D-6 Total Employment Growth By Pressure Zone
Table D-6 Water System Plan Update
Table D-6 City of Renton
Pressure Zone 20102011201220132014201520162017202120312041205120612071
Pressure Zone VLY1960.0%1.3%2.6%4.0%5.3%6.6%7.9%9.3%14.6%29.9%61.8%75.0%88.3%101.5%
Pressure Zone KD218 0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
PZKD320 00%97%181%261%341%420%448%476%588%867%1146%1425%1704%1982%
Total Employment Growth Rates by Individual Pressure Zones (Percent Growth Compared to 2010)
Total Population Growth Rates by Individual Pressure Zones (Percent Growth Compared to 2010)
Pressure Zone KD320 0.0%9.7%18.1%26.1%34.1%42.0%44.8%47.6%58.8%86.7%114.6%142.5%170.4%198.2%
Pressure Zone HLD4350.0%3.8%7.7%11.5%15.3%19.2%23.0%26.9%42.2%76.7%76.7%76.7%76.7%76.7%
Pressure Zone HLD5650.0%6.3%12.6%18.9%23.8%28.3%32.8%37.4%55.5%96.3%96.3%96.3%96.3%96.3%
Pressure Zone WH3000.0%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%0.7%
Pressure Zone EARL3700.0%1.8%3.5%5.3%7.1%8.8%10.6%12.4%19.7%25.2%25.2%25.2%25.2%25.2%
Pressure Zone WH4950.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone SH3700.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone ETH3000.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone WTH3000.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone TH3500.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.4%2.7%4.9%7.1%9.1%
Pressure Zone RH3950.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Pressure Zone RH4900.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.1%0.7%1.3%1.9%2.5%
Pressure Zone RH5900.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Total0.0%3.0%5.7%8.3%10.9%13.4%14.9%16.4%22.5%37.7%57.0%68.3%79.6%90.9%
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
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2011202120312041205120612071
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Total Population Forecast
Total Employment Forecast
Figure D-1
Valley 196 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
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o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐2
Kennydale 218 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
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.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐3
Kennydale 320 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
10,000
12,000
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
2,000
4,000
6,000
8,000
10,000
12,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐4
Highlands 435 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
5,000
10,000
15,000
20,000
25,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐5
Highlands 565 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
1,000
1,200
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
200
400
600
800
1,000
1,200
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐6
West Hill 300 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
500
1,000
1,500
2,000
2,500
3,000
3,500
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐7
Earlington 370 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
1,400
1,600
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
200
400
600
800
1,000
1,200
1,400
1,600
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐8
West Hill 495 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
20
40
60
80
100
120
140
160
180
200
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐9
Scenic Hill 370 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
140
160
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
20
40
60
80
100
120
140
160
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐10
East Talbot Hill 300 Pressure
Zone Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
100
200
300
400
500
600
700
800
900
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐11
West Talbot Hill 300 Pressure
Zone Growth Projections
Water System Plan Update
City of Renton
2,500
3,000
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
500
1,000
1,500
2,000
2,500
3,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐12
Talbot Hill 350 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
50
100
150
200
250
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐13
Rolling Hills395 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
2,500
3,000
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
500
1,000
1,500
2,000
2,500
3,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐14
Rolling Hills490 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
DEMOGRAPHIC GROWTH PROJECTION CHARTS BY PRESSURE ZONE
0
1,000
2,000
3,000
4,000
5,000
6,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐15
Rolling Hills590 Pressure Zone
Growth Projections
Water System Plan Update
City of Renton
100,000
120,000
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
0
20,000
40,000
60,000
80,000
100,000
120,000
2011202120312041205120612071
Ho
u
s
e
h
o
l
d
,
P
o
p
.
a
n
d
E
m
p
.
F
o
r
e
c
a
s
t
s
YearTotal Household Forecast
Total Population Forecast
Total Employment Forecast
Figure D‐16
Renton Water ServiceArea
Growth Projections
Water System Plan Update
City of Renton
Table A-1 Projected Connections by Pressure Zone
Table A-1 Water System Plan Update
Table A-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Valley 196
Single Family1,0521,0651,0781,0911,1041,1191,1341,1941,3441,4931,6431,7931,928
Multi Family 271275278281285289292308347385424462497
Commercial 7287377477567667757858239331,1621,2571,3521,447
Industrial 61626263646566697897105113121
Government 45464646464747485255596266
Irrigation 321325330334338342346363412513555597639
Subtotal 2,4782,5092,5402,5712,6032,6362,6702,8053,1643,7054,0424,3794,698
Kennydale 218
Single Family31313131313131313131313131
Multi Family0000000000000
Commercial 1 1 1 1 1 1 1 1 1 1 1 1 1
VALLEY OPERATIONAL AREA
HIGHLANDS 435/KENNYDALE OPERATIONAL AREA
Planning Year
Commercial 1 1 1 1 1 1 1 1 1 1 1 1 1
Industrial 0000000000000
Government0000000000000
Irrigation6666666666666
Subtotal 38383838383838383838383838
Kennydale 320
Single Family9309569831,0101,0361,0661,0961,2171,5171,8182,1192,4192,720
Multi Family109112115119122125129143178213249284319
Commercial8793100106112114117125147170192214236
Industrial14151617181919212428323539
Government10101011111111121415171921
Irrigation6671768085878995112129145162179
Subtotal1,2161,2581,3001,3421,3851,4231,4611,6131,9932,3732,7533,1343,514
Highlands 435
Single Family2,9713,0053,0393,0733,1073,1423,1763,3123,6203,6363,6513,6673,682
Multi Family188190192195197199201210229230231232233
Commercial6265676972747685106106106106106
Industrial 0000000000000
Government7777778899999
Irrigation 76798184879093104129129129129129g
Subtotal 3,3043,3463,3873,4293,4703,5123,5533,7194,0934,1104,1264,1434,159
Highlands 565
Single Family4,7594,8234,8864,9505,0145,0785,1425,3975,9746,0116,0476,0836,120
Multi Family499505512519525532539566626630634637641
Commercial176187197205213220228258326326326326326
Industrial 1111111222222
Government23242424242525262929292930
Irrigation163172182189196203210238300300300300300
Subtotal5,6215,7125,8035,8895,9746,0606,1456,4867,2587,2987,3387,3787,419
West Hill 300
Single Family176176177177178178179181186190190190190
Multi Family24242424242424252526262626
Commercial11111111111111111111111111
Industrial 0000000000000
Government0000000000000
Irrigation1111111111111
Subtotal 212 212 213213214 214 215217 223228228228228
HIGHLANDS 565 OPERATIONAL AREA
WEST HILL OPERATIONAL AREA
Earlington 370
Single Family280284288292296300304319359394394394394
Multi Family24252525262626283134343434
Commercial2222222233333
Industrial 0000000000000
Government0000000000000
Irrigation3333333444444
Subtotal309314318322327331336353396434434434434
West Hill 495
Single Family417419421423425427429437458476476476476
Multi Family1111111111111
Commercial9999999999999
Industrial 0000000000000
Government0000000000000
Irrigation0000000000000
Subtotal427429431433435437439447468486486486486
Table A-1 Projected Connections by Pressure Zone
Table A-1 Water System Plan Update
Table A-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Planning Year
Scenic Hill 370
Single Family71727272727373747780808080
Multi Family 11111111111111121212121212
Commercial0000000000000
Industrial 0000000000000
Government0000000000000
Irrigation1111111111111
Subtotal 83848484858585879093939393
East Talbot Hill 300
Single Family5555555667777
Multi Family19202020202121222527272727
Commercial0000000000000
Industrial 0 0 0 0 0 0 0 0 0 0 0 0 0
ROLLING HILLS/TALBOT HILL OPERATIONAL AREA
Industrial 0 0 0 0 0 0 0 0 0 0 0 0 0
Government0000000000000
Irrigation2222222222222
Subtotal26272727282828303336363636
West Talbot Hill 300
Single Family344345347348349350352357369380380380380
Multi Family6666666667777
Commercial0000000000000
Industrial 0000000000000
Government1111111111111
Irrigation1111111111111
Subtotal352354355356357359360365377389389389389
Tablot Hill 350
Single Family783788793798803808813832882926926926926
Multi Family160161162163164165166170180189189189189
Commercial26262626262626262627272828
Industrial 0000000000000
Government1111111111111
Irrigation37373737373737373738394040
Subtotal 1,007 1,0131,0191,0251,0311,037 1,0431,066 1,126 1,1811,182 1,184 1,185,,,,,,,,,,,,,
Rolling Hills 395
Single Family0000000000000
Multi Family45454545454545454545454545
Commercial0000000000000
Industrial 0000000000000
Government1111111111111
Irrigation2222222222222
Subtotal48484848484848484848484848
Rolling Hills 490
Single Family538543547552557562567586634677677677677
Multi Family108109110111112113114118127136136136136
Commercial13131313131313131313131313
Industrial 0000000000000
Government1111111111111
Irrigation24242424242424242424242425
Subtotal684690695701707713718741799851851851852
Rolling Hills 590
Single Family1,0821,0891,0951,1021,1081,1151,1211,1471,2111,2701,2701,2701,270
Multi Family 110110111112112113114116123129129129129y
Commercial7777777777777
Industrial 0000000000000
Government3333333333333
Irrigation24242424242424242424242424
Subtotal1,2261,2331,2401,2471,2551,2621,2691,2971,3681,4321,4321,4321,433
Total
Single Family13,43913,60113,76213,92414,08614,25314,42015,08916,66817,38817,89018,39218,880
Multi Family1,5761,5941,6131,6321,6501,6701,6901,7681,9562,0652,1442,2222,297
Commercial1,1221,1511,1801,2061,2311,2531,2751,3611,5821,8331,9512,0692,187
Industrial7678808284858691104127138150162
Government93949495969798101110116122128133
Irrigation7277487707898088238399021,0551,1741,2341,2931,353
Grand Total17,03217,26617,49917,72817,95518,18118,40719,31221,47422,70323,47924,25425,011
TOTAL
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
500
1,000
1,500
2,000
2,500
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
Year
Single Family Multi Family
Commercial Industrial
Government Irrigation
Figure A-1
Valley 196 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
30
35
0
5
10
15
20
25
30
35
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
Year
Single Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐2
Kennydale 218 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
500
1,000
1,500
2,000
2,500
3,000
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐3
Kennydale 320 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
3,500
4,000
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐4
Highlands 435 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐5
Highlands 565 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
180
200
0
20
40
60
80
100
120
140
160
180
200
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐6
West Hill 300 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
50
100
150
200
250
300
350
400
450
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐7
Earlington 370 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
450
500
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
0
50
100
150
200
250
300
350
400
450
500
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐8
West Hill 495 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
10
20
30
40
50
60
70
80
90
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐9
Scenic Hill 370 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
25
30
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
0
5
10
15
20
25
30
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐10
East Talbot Hill 300 Pressure
Zone Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
50
100
150
200
250
300
350
400
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐11
West Talbot Hill 300 Pressure
Zone Account Projections
Water System Plan Update
City of Renton
900
1,000
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
0
100
200
300
400
500
600
700
800
900
1,000
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐12
Talbot Hill 350 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
5
10
15
20
25
30
35
40
45
50
2011202120312041205120612071
Pr
o
j
e
c
t
N
u
m
b
e
r
o
f
A
c
c
o
u
n
t
s
YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐13
Rolling Hills 395 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
700
800
Pr
o
j
e
c
t
N
u
m
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2011202120312041205120612071
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YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐14
Rolling Hills 490 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
ACCOUNT PROJECTION CHARTS BY PRESSURE ZONE
0
200
400
600
800
1,000
1,200
1,400
2011202120312041205120612071
Pr
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YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐15
Rolling Hills 590 Pressure Zone
Account Projections
Water System Plan Update
City of Renton
18,000
20,000
Pr
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4,000
6,000
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16,000
18,000
20,000
2011202120312041205120612071
Pr
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YearSingle Family Multi Family
Commercial Industrial
Government Irrigation
Figure A‐16
RentonWater Service Area
Account Projections
Water System Plan Update
City of Renton
Table E-1 Projected ERUs by Pressure Zone
Table E-1 Water System Plan Update
Table E-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Valley 196
Single Family1,0521,0651,0781,0911,1041,1191,1341,1941,3441,4931,6431,7931,928
Multi Family1,4681,4861,5041,5221,5401,5611,5821,6661,8752,0842,2932,5022,690
Commercial4,7144,7764,8374,8994,9615,0225,0845,3306,0437,5278,1438,7599,375
Industrial 5905986066136216296366677569421,0191,0971,174
Government396398401403406409412423453484515546574
Irrigation 2,3802,4112,4432,4742,5052,5362,5672,6913,0513,8014,1124,4234,734
Subtotal 10,60010,73410,86811,00211,13611,27611,41511,97213,52116,33117,72519,11920,475
Kennydale 218
Single Family31313131313131313131313131
Multi Family0000000000000
Commercial6666666666666
Planning Year
VALLEY OPERATIONAL AREA
HIGHLANDS 435/KENNYDALE OPERATIONAL AREA
Industrial 0000000000000
Government0000000000000
Irrigation44444444444444444444444444
Subtotal 82828282828282828282828282
Kennydale 320
Single Family9309569831,0101,0361,0661,0961,2171,5171,8182,1192,4192,720
Multi Family5906076246416586776967739631,1541,3451,5361,727
Commercial5626056466867277417568139561,0981,2411,3841,527
Industrial138149159169179183186200236271306341376
Government89909193949597103118135152169186
Irrigation4885255615966326446567068309541,0781,2021,326
Subtotal2,7972,9333,0643,1953,3263,4073,4883,8114,6205,4316,2417,0527,863
Highlands 435
Single Family2,9713,0053,0393,0733,1073,1423,1763,3123,6203,6363,6513,6673,682
Multi Family1,0181,0291,0411,0531,0651,0761,0881,1351,2401,2451,2511,2561,261
Commercial404419434448463478493553687687687687687
Industrial 0000000000000
Government62636364656566697575767676
Irrigation562583603624645666686769956956956956956
Subtotal 5,0165,0985,1805,2635,3455,4275,5095,8376,5796,6006,6216,6426,663
Highlands 565
Single Family4,7594,8234,8864,9505,0145,0785,1425,3975,9746,0116,0476,0836,120
Multi Family2,6982,7342,7702,8062,8422,8782,9143,0593,3873,4073,4283,4483,469
Commercial1,1431,2111,2791,3311,3801,4291,4781,6732,1112,1112,1112,1112,111
Industrial10111212121313151919191919
Government203206209211214216219229252254256257259
Irrigation1,2051,2771,3481,4031,4551,5061,5581,7632,2262,2262,2262,2262,226
Subtotal10,01910,26110,50310,71410,91711,12011,32312,13613,96914,02814,08714,14514,204
West Hill 300
Single Family176176177177178178179181186190190190190
Multi Family130131131131132132132134138141141141141
Commercial72727272727272727272727272
Industrial 0000000000000
Government0000000000000
Irrigation7777777777777
Subtotal385386387388388389390394402410410410410
HIGHLANDS 565 OPERATIONAL AREA
WEST HILL OPERATIONAL AREA
Earlington 370
Single Family280284288292296300304319359394394394394
Multi Family132134135137139141143150169185185185185
Commercial13131414141415161616161616
Industrial 0000000000000
Government0000000000000
Irrigation23232324242525272828282828
Subtotal447454460467473479486512571623623623623
West Hill 495
Single Family417419421423425427429437458476476476476
Multi Family5556666666666
Commercial58585858585858585858585858
Industrial 0000000000000
Government0000000000000
Irrigation0000000000000
Subtotal481483485487489491493501522540540540540
Table E-1 Projected ERUs by Pressure Zone
Table E-1 Water System Plan Update
Table E-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Planning Year
Scenic Hill 370
Single Family71727272727373747780808080
Multi Family 60606060616161626567676767
Commercial0000000000000
Industrial 0000000000000
Government0000000000000
Irrigation7777777777777
Subtotal 138139140140141141142144149154154154154
East Talbot Hill 300
Single Family5555555667777
Multi Family104106107109110111113119133146146146146
Commercial0000000000000
Industrial 0000000000000
ROLLING HILLS/TALBOT HILL OPERATIONAL AREA
Government0000000000000
Irrigation15151515151515151515151515
Subtotal124126127129130132133139155168168168168
West Talbot Hill 300
Single Family344345347348349350352357369380380380380
Multi Family33333333333333343536363636
Commercial0000000000000
Industrial 0000000000000
Government9999999999999
Irrigation7777777777777
Subtotal393394396397398400401407420433433433433
Tablot Hill 350
Single Family783788793798803808813832882926926926926
Multi Family8668718768828878938989209751,0241,0241,0241,024
Commercial168168168168168168168168169173177180184
Industrial 0000000000000
Government999999999991010
Irrigation274274274274274274274274275282288294299
Subtotal2,1002,1102,1212,1312,1412,1522,1622,2042,3102,4132,4232,4342,443
Rolling Hills 395
Single Family0000000000000
Multi Family243243243243243243243243243243243243243
Commercial0000000000000
Industrial 0000000000000
Government9999999999999
Irrigation15151515151515151515151515
Subtotal267267267267267267267267267267267267267
Rolling Hills 490
Single Family538543547552557562567586634677677677677
Multi Family584589594600605610615636688735735735735
Commercial84848484848484848485858686
Industrial 0000000000000
Government9999999999101011
Irrigation178178178178178178178178178179180181182
Subtotal1,3931,4031,4131,4231,4331,4431,4531,4931,5931,6851,6871,6891,691
Rolling Hills 590
Single Family1,0821,0891,0951,1021,1081,1151,1211,1471,2111,2701,2701,2701,270
Multi Family593597600604607611614628664696696696696
Commercial45454545454545454545454545
Industrial 0000000000000
Government26262626262626262627282930
Irrigation178178178178178178178178178178178178178
Subtotal1,9251,9351,9451,9551,9651,9751,9852,0252,1252,2162,2172,2172,218
Total
Single Family13,43913,60113,76213,92414,08614,25314,42015,08916,66817,38817,89018,39218,880
Multi Family8,5238,6248,7268,8278,9289,0349,1409,56410,58011,17011,59612,02212,427
Commercial7,2717,4587,6447,8147,9808,1208,2598,81910,24911,88012,64313,40614,169
Industrial7397587767948138248368831,0111,2321,3441,4571,569
Government8118188258328398478548859591,0111,0631,1151,164
Irrigation5,3845,5455,7045,8475,9866,1026,2186,6837,8198,6999,1429,58410,026
Grand Total36,16736,80437,43738,03838,63239,18039,72941,92247,28551,38153,67855,97658,234
TOTAL
20
0
0
0
30
,
0
0
0
40
,
0
0
0
50
,
0
0
0
60
,
0
0
0
70
,
0
0
0
mber of Equivalent Residential Units
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0
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2
1
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3
1
20
4
1
20
5
1
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6
1
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7
1
Num
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Table W-1 Projected ADD by Pressure Zone and Customer Type
Table W-1 Water System Plan Update
Table W-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Valley 196
Single Family 0.1800.1820.1840.1870.1890.1910.1940.2040.2300.2560.2810.3070.330
Multi Family 0.2510.2540.2570.2600.2640.2670.2710.2850.3210.3570.3920.4280.460
Commercial0.8070.8170.8280.8380.8490.8590.8700.9121.0341.2881.3931.4991.604
Industrial0.1010.1020.1040.1050.1060.1080.1090.1140.1290.1610.1740.1880.201
Government0.0680.0680.0690.0690.0690.0700.0700.0720.0770.0830.0880.0930.098
Irrigation 0.4070.4130.4180.4230.4290.4340.4390.4610.5220.6500.7040.7570.810
SPU Boeing/KC WWTP0.2970.2970.2970.2970.2970.2970.2970.2970.2970.2970.2970.2970.297
Other (Misc.+DSL)0.4760.4810.4860.4910.4960.5020.5070.5290.5880.6970.7500.8040.856
Subtotal 2.5872.615 2.643 2.6712.6992.7292.758 2.875 3.1993.7894.0814.373 4.657
Kennydale 218
Single Family 0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
Multi Family 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Commercial0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Iiti 0008 0008 0008 0008 0008 0008 0008 0008 0008 0008 0008 0008 0008
Projected Average Day Demand (mgd)
VALLEY OPERATIONAL AREA
HIGHLANDS 435/KENNYDALE OPERATIONAL AREA
Irrigation 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008 0.008
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Subtotal 0.0170.0170.0170.0170.0170.0170.0170.0170.0170.0170.0170.0170.017
Kennydale 320
Single Family 0.1590.1640.1680.1730.1770.1820.1880.2080.2600.3110.3630.4140.465
Multi Family 0.1010.1040.1070.1100.1130.1160.1190.1320.1650.1980.2300.2630.296
Commercial0.0960.1030.1100.1170.1240.1270.1290.1390.1640.1880.2120.2370.261
Industrial0.0240.0260.0270.0290.0310.0310.0320.0340.0400.0460.0520.0580.064
Government0.0150.0150.0160.0160.0160.0160.0170.0180.0200.0230.0260.0290.032
Irrigation 0.0830.0900.0960.1020.1080.1100.1120.1210.1420.1630.1840.2060.227
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.1080.1130.1180.1230.1280.1310.1340.1470.1780.2090.2410.2720.303
Subtotal 0.586 0.615 0.642 0.6700.6970.7140.7310.7990.9691.1391.3091.4791.649
Highlands 435
Single Family 0.5080.5140.5200.5260.5320.5380.5430.5670.6190.6220.6250.6270.630
Multi Family 0.1740.1760.1780.1800.1820.1840.1860.1940.2120.2130.2140.2150.216
Commercial0.0690.0720.0740.0770.0790.0820.0840.0950.1180.1180.1180.1180.118
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0110.0110.0110.0110.0110.0110.0110.0120.0130.0130.0130.0130.013
Irrigation 0.0960.1000.1030.1070.1100.1140.1170.1320.1640.1640.1640.1640.164
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.1930.1970.2000.2030.2060.2090.2120.2250.2540.2540.2550.2560.257
Subtotal 1052 1069 1086 1103 1121 1138 1155 1224 1379 1384 1388 1393 1397Subtotal1.052 1.069 1.086 1.103 1.121 1.138 1.155 1.224 1.379 1.384 1.388 1.393 1.397
Highlands 565
Single Family 0.8140.8250.8360.8470.8580.8690.8800.9231.0221.0291.0351.0411.047
Multi Family 0.4620.4680.4740.4800.4860.4930.4990.5230.5790.5830.5870.5900.594
Commercial0.1960.2070.2190.2280.2360.2440.2530.2860.3610.3610.3610.3610.361
Industrial0.0020.0020.0020.0020.0020.0020.0020.0030.0030.0030.0030.0030.003
Government0.0350.0350.0360.0360.0370.0370.0370.0390.0430.0430.0440.0440.044
Irrigation 0.2060.2180.2310.2400.2490.2580.2670.3020.3810.3810.3810.3810.381
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.3860.3960.4050.4130.4210.4290.4370.4680.5390.5410.5430.5450.548
Subtotal 2.1012.1512.202 2.246 2.2892.332 2.3742.5442.9292.9412.9542.966 2.978
West Hill 300
Single Family 0.0300.0300.0300.0300.0300.0300.0310.0310.0320.0330.0330.0330.033
Multi Family 0.0220.0220.0220.0220.0230.0230.0230.0230.0240.0240.0240.0240.024
Commercial0.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.0120.012
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0150.0150.0150.0150.0150.0150.0150.0150.0160.0160.0160.0160.016
Subtotal 0.0810.0810.0810.0810.0810.082 0.082 0.083 0.0840.086 0.086 0.086 0.086
Earlington 370
HIGHLANDS 565 OPERATIONAL AREA
WEST HILL OPERATIONAL AREA
Single Family 0.0480.0490.0490.0500.0510.0510.0520.0550.0610.0670.0670.0670.067
Multi Family 0.0230.0230.0230.0230.0240.0240.0240.0260.0290.0320.0320.0320.032
Commercial0.0020.0020.0020.0020.0020.0020.0020.0030.0030.0030.0030.0030.003
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0040.0040.0040.0040.0040.0040.0040.0050.0050.0050.0050.0050.005
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0170.0170.0180.0180.0180.0180.0190.0200.0220.0240.0240.0240.024
Subtotal 0.0940.095 0.096 0.098 0.0990.1010.102 0.1070.1200.1310.1310.1310.131
West Hill 495
Single Family 0.0710.0720.0720.0720.0730.0730.0730.0750.0780.0810.0810.0810.081
Multi Family 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Commercial0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.010
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Wholesale 0.1640.1700.1770.1830.1890.1950.2010.2260.2500.2500.2500.2500.250
Other (Misc.+DSL)0.0560.0570.0580.0600.0610.0630.0640.0700.0760.0770.0770.0770.077
Subtotal 0.302 0.3100.318 0.326 0.3340.342 0.3500.3810.416 0.4200.4200.4200.420
Table W-1 Projected ADD by Pressure Zone and Customer Type
Table W-1 Water System Plan Update
Table W-1 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Projected Average Day Demand (mgd)
Scenic Hill 370
Single Family 0.0120.0120.0120.0120.0120.0120.0130.0130.0130.0140.0140.0140.014
Multi Family 0.0100.0100.0100.0100.0100.0100.0100.0110.0110.0110.0110.0110.011
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0050.0050.0050.0050.0050.0050.0050.0060.0060.0060.0060.0060.006
Subtotal 0.0290.0290.0290.0290.0290.0300.0300.0300.0310.032 0.032 0.032 0.032
East Talbot Hill 300
Single Family 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Multi Family 0.0180.0180.0180.0190.0190.0190.0190.0200.0230.0250.0250.0250.025
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Whll 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
ROLLING HILLS/TALBOT HILL OPERATIONAL AREA
Wholesale 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Other (Misc.+DSL)0.0050.0050.0050.0050.0050.0050.0050.0050.0060.0060.0060.0060.006
Subtotal 0.026 0.026 0.0270.0270.0270.028 0.028 0.0290.032 0.035 0.035 0.035 0.035
West Talbot Hill 300
Single Family 0.0590.0590.0590.0600.0600.0600.0600.0610.0630.0650.0650.0650.065
Multi Family 0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0020.0020.0020.002
Irrigation 0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0150.0150.0150.0150.0150.0150.0150.0160.0160.0170.0170.0170.017
Subtotal 0.082 0.083 0.083 0.083 0.0840.0840.0840.085 0.088 0.0910.0910.0910.091
Tablot Hill 350
Single Family 0.1340.1350.1360.1370.1370.1380.1390.1420.1510.1580.1580.1580.158
Multi Family 0.1480.1490.1500.1510.1520.1530.1540.1570.1670.1750.1750.1750.175
Commercial0.0290.0290.0290.0290.0290.0290.0290.0290.0290.0300.0300.0310.031
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0020.0020.0020.002
Irrigation 0.0470.0470.0470.0470.0470.0470.0470.0470.0470.0480.0490.0500.051
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0810.0810.0820.0820.0830.0830.0830.0850.0890.0930.0930.0940.094
Subtotal 0.4400.442 0.445 0.4470.4490.4510.453 0.462 0.4840.506 0.508 0.5100.512
RollingHills395Rolling Hills 395
Single Family 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Multi Family 0.0420.0420.0420.0420.0420.0420.0420.0420.0420.0420.0420.0420.042
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.0010.001
Irrigation 0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.010
Subtotal 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056
Rolling Hills 490
Single Family 0.0920.0930.0940.0940.0950.0960.0970.1000.1080.1160.1160.1160.116
Multi Family 0.1000.1010.1020.1030.1030.1040.1050.1090.1180.1260.1260.1260.126
Commercial0.0140.0140.0140.0140.0140.0140.0140.0140.0140.0150.0150.0150.015
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0010.0010.0010.0010.0010.0010.0010.0010.0020.0020.0020.0020.002
Irrigation 0.0300.0300.0300.0300.0300.0300.0300.0300.0300.0310.0310.0310.031
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0540.0540.0540.0550.0550.0560.0560.0580.0610.0650.0650.0650.065
Subtotal 0.292 0.2940.296 0.298 0.3000.302 0.305 0.313 0.3340.353 0.3540.3540.354
Rolling Hills 590
Single Family 0.1850.1860.1870.1890.1900.1910.1920.1960.2070.2170.2170.2170.217
Multi Family 0.1010.1020.1030.1030.1040.1050.1050.1080.1140.1190.1190.1190.119
Commercial0.0080.0080.0080.0080.0080.0080.0080.0080.0080.0080.0080.0080.008
Industrial 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government 0.0040.0040.0040.0040.0040.0040.0040.0040.0040.0050.0050.0050.005
Irrigation 0.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.030
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0740.0750.0750.0750.0760.0760.0770.0780.0820.0850.0850.0850.086
Subtotal 0.4040.406 0.408 0.4100.412 0.4140.416 0.425 0.446 0.465 0.465 0.465 0.465
Total
Single Family 2.3002.3272.3552.3832.4102.4392.4672.5822.8522.9753.0613.1473.231
Multi Family 1.4581.4761.4931.5101.5281.5461.5641.6371.8101.9111.9842.0572.126
Commercial1.2441.2761.3081.3371.3651.3891.4131.5091.7542.0332.1632.2942.425
Industrial0.1260.1300.1330.1360.1390.1410.1430.1510.1730.2110.2300.2490.268
Government0.1390.1400.1410.1420.1440.1450.1460.1510.1640.1730.1820.1910.199
Irrigation 0.9210.9490.9761.0011.0241.0441.0641.1441.3381.4891.5641.6401.716
Wholesale/Top Users0.4620.4680.4740.4800.4860.4920.4990.5230.5470.5470.5470.5470.547
Other (Misc.+DSL)1.4981.5241.5501.5751.5991.6211.6441.7341.9462.1042.1932.2812.368
Grand Total8.1498.2908.4308.5648.6968.8188.9419.43110.58511.44411.92512.40712.881
TOTAL
Table W-2 Projected MDD by Pressure Zone and Customer Type
Table W-2 Water System Plan Update
Table W-2 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Valley 196
Single Family 0.3290.3330.3370.3410.3450.3490.3540.3730.4200.4660.5130.5600.602
Multi Family 0.4580.4640.4700.4750.4810.4880.4940.5200.5860.6510.7160.7810.840
Commercial1.4721.4921.5111.5301.5491.5691.5881.6651.8872.3512.5432.7362.928
Industrial0.1840.1870.1890.1920.1940.1960.1990.2080.2360.2940.3180.3420.367
Government0.1240.1240.1250.1260.1270.1280.1290.1320.1410.1510.1610.1700.179
Irrigation 0.7430.7530.7630.7730.7820.7920.8020.8410.9531.1871.2841.3811.479
SPU Boeing/KC WWTP0.5430.5430.5430.5430.5430.5430.5430.5430.5430.5430.5430.5430.543
Other (Misc.+DSL)0.8680.8780.8870.8970.9060.9160.9260.9651.0741.2721.3701.4681.563
Subtotal 4.722 4.773 4.825 4.876 4.9274.9805.0345.2475.8406.915 7.448 7.982 8.501
Kennydale 218
Single Family 0.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.0100.010
Multi Family 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Commercial0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Iiti 0014 0014 0014 0014 0014 0014 0014 0014 0014 0014 0014 0014 0014
Projected Maximum Day Demand (mgd)
VALLEY OPERATIONAL AREA
HIGHLANDS 435/KENNYDALE OPERATIONAL AREA
Irrigation 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014 0.014
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.0060.006
Subtotal 0.0310.0310.0310.0310.0310.0310.0310.0310.0310.0310.0310.0310.031
Kennydale 320
Single Family 0.2900.2990.3070.3150.3240.3330.3420.3800.4740.5680.6620.7560.850
Multi Family 0.1840.1900.1950.2000.2060.2110.2170.2410.3010.3610.4200.4800.539
Commercial0.1750.1890.2020.2140.2270.2320.2360.2540.2980.3430.3880.4320.477
Industrial0.0430.0470.0500.0530.0560.0570.0580.0630.0740.0850.0960.1070.118
Government0.0280.0280.0290.0290.0290.0300.0300.0320.0370.0420.0480.0530.058
Irrigation 0.1520.1640.1750.1860.1970.2010.2050.2200.2590.2980.3370.3750.414
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.1970.2060.2160.2250.2340.2400.2450.2680.3250.3820.4390.4960.553
Subtotal 1.0701.122 1.172 1.223 1.273 1.3041.335 1.4591.768 2.078 2.3892.6993.009
Highlands 435
Single Family 0.9280.9390.9490.9600.9710.9810.9921.0341.1311.1361.1401.1451.150
Multi Family 0.3180.3220.3250.3290.3320.3360.3400.3540.3870.3890.3910.3920.394
Commercial0.1260.1310.1350.1400.1450.1490.1540.1730.2150.2150.2150.2150.215
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0190.0200.0200.0200.0200.0200.0210.0210.0230.0240.0240.0240.024
Irrigation 0.1750.1820.1880.1950.2010.2080.2140.2400.2990.2990.2990.2990.299
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.3530.3590.3650.3700.3760.3820.3880.4110.4630.4640.4660.4670.469
Subtotal 1920 1951 1983 2014 2045 2077 2108 2234 2518 2526 2534 2542 2550Subtotal1.920 1.951 1.983 2.014 2.045 2.077 2.108 2.234 2.518 2.526 2.534 2.542 2.550
Highlands 565
Single Family 1.4861.5061.5261.5461.5661.5861.6061.6861.8661.8771.8891.9001.911
Multi Family 0.8420.8540.8650.8760.8880.8990.9100.9551.0581.0641.0711.0771.083
Commercial0.3570.3780.3990.4160.4310.4460.4610.5220.6590.6590.6590.6590.659
Industrial0.0030.0030.0040.0040.0040.0040.0040.0050.0060.0060.0060.0060.006
Government0.0640.0640.0650.0660.0670.0680.0680.0720.0790.0790.0800.0800.081
Irrigation 0.3760.3990.4210.4380.4540.4700.4860.5510.6950.6950.6950.6950.695
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.7050.7220.7390.7540.7680.7830.7970.8540.9830.9870.9910.9951.000
Subtotal 3.8343.9274.0204.1004.178 4.256 4.333 4.6445.346 5.368 5.3915.413 5.436
West Hill 300
Single Family 0.0550.0550.0550.0550.0550.0560.0560.0560.0580.0590.0590.0590.059
Multi Family 0.0410.0410.0410.0410.0410.0410.0410.0420.0430.0440.0440.0440.044
Commercial0.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.0220.022
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0270.0270.0270.0270.0270.0270.0270.0280.0280.0290.0290.0290.029
Subtotal 0.1470.148 0.148 0.148 0.1490.1490.1490.1510.1540.1570.1570.1570.157
Earlington 370
HIGHLANDS 565 OPERATIONAL AREA
WEST HILL OPERATIONAL AREA
Single Family 0.0870.0890.0900.0910.0920.0940.0950.1000.1120.1230.1230.1230.123
Multi Family 0.0410.0420.0420.0430.0430.0440.0450.0470.0530.0580.0580.0580.058
Commercial0.0040.0040.0040.0040.0040.0040.0050.0050.0050.0050.0050.0050.005
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0070.0070.0070.0070.0080.0080.0080.0080.0090.0090.0090.0090.009
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0310.0320.0320.0330.0330.0340.0340.0360.0400.0440.0440.0440.044
Subtotal 0.1710.1740.176 0.1790.1810.183 0.186 0.196 0.2190.2390.2390.2390.239
West Hill 495
Single Family 0.1300.1310.1320.1320.1330.1330.1340.1370.1430.1490.1490.1490.149
Multi Family 0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Commercial0.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.0180.018
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Wholesale 0.5490.5690.5900.6100.6310.6510.6720.7530.8350.8350.8350.8350.835
Other (Misc.+DSL)0.1010.1040.1070.1090.1120.1150.1170.1280.1400.1410.1410.1410.141
Subtotal 0.8000.8240.848 0.872 0.895 0.9190.943 1.038 1.138 1.145 1.145 1.145 1.145
Table W-2 Projected MDD by Pressure Zone and Customer Type
Table W-2 Water System Plan Update
Table W-2 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Projected Maximum Day Demand (mgd)
Scenic Hill 370
Single Family 0.0220.0220.0220.0230.0230.0230.0230.0230.0240.0250.0250.0250.025
Multi Family 0.0190.0190.0190.0190.0190.0190.0190.0190.0200.0210.0210.0210.021
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0100.0100.0100.0100.0100.0100.0100.0100.0110.0110.0110.0110.011
Subtotal 0.053 0.053 0.053 0.0540.0540.0540.0540.055 0.0570.0590.0590.0590.059
East Talbot Hill 300
Single Family 0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Multi Family 0.0330.0330.0330.0340.0340.0350.0350.0370.0420.0460.0460.0460.046
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Irrigation 0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
Whll 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
ROLLING HILLS/TALBOT HILL OPERATIONAL AREA
Wholesale 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Other (Misc.+DSL)0.0090.0090.0090.0090.0090.0090.0090.0100.0110.0120.0120.0120.012
Subtotal 0.048 0.048 0.0490.0490.0500.0500.0510.053 0.0590.0640.0640.0640.064
West Talbot Hill 300
Single Family 0.1080.1080.1080.1090.1090.1090.1100.1110.1150.1190.1190.1190.119
Multi Family 0.0100.0100.0100.0100.0100.0100.0100.0110.0110.0110.0110.0110.011
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Irrigation 0.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.0020.002
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0280.0280.0280.0280.0280.0280.0280.0290.0300.0300.0300.0300.030
Subtotal 0.1500.1510.1510.152 0.152 0.153 0.153 0.156 0.1610.166 0.166 0.166 0.166
Tablot Hill 350
Single Family 0.2450.2460.2480.2490.2510.2520.2540.2600.2750.2890.2890.2890.289
Multi Family 0.2700.2720.2740.2750.2770.2790.2810.2870.3040.3200.3200.3200.320
Commercial0.0530.0530.0530.0530.0530.0530.0530.0530.0530.0540.0550.0560.057
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Irrigation 0.0860.0860.0860.0860.0860.0860.0860.0860.0860.0880.0900.0920.093
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.1480.1480.1490.1500.1510.1510.1520.1550.1630.1700.1710.1710.172
Subtotal 0.8040.808 0.812 0.816 0.8200.823 0.8270.843 0.8840.9240.9270.9310.935
RollingHills395Rolling Hills 395
Single Family 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Multi Family 0.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.0760.076
Commercial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Irrigation 0.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.0050.005
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0190.0190.0190.0190.0190.0190.0190.0190.0190.0190.0190.0190.019
Subtotal 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102 0.102
Rolling Hills 490
Single Family 0.1680.1690.1710.1720.1740.1750.1770.1830.1980.2110.2110.2110.211
Multi Family 0.1820.1840.1860.1870.1890.1910.1920.1990.2150.2300.2300.2300.230
Commercial0.0260.0260.0260.0260.0260.0260.0260.0260.0260.0270.0270.0270.027
Industrial0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government0.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.0030.003
Irrigation 0.0560.0560.0560.0560.0560.0560.0560.0560.0560.0560.0560.0570.057
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.0980.0990.0990.1000.1010.1020.1020.1050.1120.1190.1190.1190.119
Subtotal 0.533 0.5370.5410.5440.548 0.552 0.556 0.5710.6100.645 0.646 0.646 0.647
Rolling Hills 590
Single Family 0.3380.3400.3420.3440.3460.3480.3500.3580.3780.3970.3970.3970.397
Multi Family 0.1850.1860.1870.1890.1900.1910.1920.1960.2070.2170.2170.2170.217
Commercial0.0140.0140.0140.0140.0140.0140.0140.0140.0140.0140.0140.0140.014
Industrial 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Government 0.0080.0080.0080.0080.0080.0080.0080.0080.0080.0080.0090.0090.009
Irrigation 0.0560.0560.0560.0560.0560.0560.0560.0560.0560.0560.0560.0560.056
Wholesale 0.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.0000.000
Other (Misc.+DSL)0.1350.1360.1370.1380.1380.1390.1400.1420.1500.1560.1560.1560.156
Subtotal 0.7370.7410.7440.748 0.752 0.756 0.7600.775 0.813 0.848 0.848 0.8490.849
Total
Single Family 4.1974.2484.2984.3494.3994.4524.5044.7135.2065.4315.5875.7445.897
Multi Family 2.6622.6942.7252.7572.7882.8222.8552.9873.3043.4893.6223.7553.881
Commercial2.2712.3292.3872.4402.4922.5362.5802.7543.2013.7103.9494.1874.425
Industrial0.2310.2370.2420.2480.2540.2570.2610.2760.3160.3850.4200.4550.490
Government0.2530.2550.2580.2600.2620.2640.2670.2760.3000.3160.3320.3480.364
Irrigation 1.6821.7321.7821.8261.8701.9061.9422.0872.4422.7172.8552.9933.131
Wholesale/Top Users1.0921.1121.1331.1531.1741.1941.2141.2961.3781.3781.3781.3781.378
Other (Misc.+DSL)2.7352.7822.8292.8742.9182.9603.0013.1653.5533.8414.0024.1644.323
Grand Total15.12315.39015.65515.90816.15816.39016.62317.55519.69921.26622.14523.02523.889
TOTAL
Table W-3 Projected ADD, MDD, and PHD by Pressure Zone
Table W-3 Water System Plan Update
Table W-3 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Valley 196
Average Day Demand2.592.622.642.672.702.732.762.873.203.794.084.374.66
Max Day Demand4.724.774.824.884.934.985.035.255.846.927.457.988.50
Peak Hour Demand6.997.067.147.227.297.377.457.778.6410.2311.0211.8112.58
Subtotal
Average Day Demand 2.592.622.642.672.702.732.762.873.203.794.084.374.66
Max Day Demand4.724.774.824.884.934.985.035.255.846.927.457.988.50
Peak Hour Demand6.997.067.147.227.297.377.457.778.6410.2311.0211.8112.58
Kennydale 218
Average Day Demand0.020.020.020.020.020.020.020.020.020.020.020.020.02
Max Day Demand0.030.030.030.030.030.030.030.030.030.030.030.030.03
Peak Hour Demand0.050.050.050.050.050.050.050.050.050.050.050.050.05
Kennydale 320
Average Day Demand0.590.610.640.670.700.710.730.800.971.141.311.481.65
Max Day Demand1.071.121.171.221.271.301.331.461.772.082.392.703.01
Peak Hour Demand1.601.671.751.821.901.941.992.182.643.103.564.034.49
Highlands 435
Average Day Demand1.051.071.091.101.121.141.161.221.381.381.391.391.40
Max Day Demand1.921.951.982.012.052.082.112.232.522.532.532.542.55
Peak Hour Demand2.862.912.963.003.053.103.143.333.763.773.783.793.80
Subtotal
Average Day Demand 1.661.701.751.791.841.871.902.042.372.542.712.893.06
Max Day Demand3.023.103.193.273.353.413.473.724.324.644.955.275.59
Peak Hour Demand4.514.634.754.875.005.095.185.556.446.917.397.868.34
Highlands 565
Average Day Demand2.102.152.202.252.292.332.372.542.932.942.952.972.98
Max Day Demand3.833.934.024.104.184.264.334.645.355.375.395.415.44
Peak Hour Demand5.665.805.936.056.176.286.406.867.897.937.967.998.03
Subtotal
Average Day Demand 2.102.152.202.252.292.332.372.542.932.942.952.972.98
Max Day Demand3.833.934.024.104.184.264.334.645.355.375.395.415.44
Peak Hour Demand5.665.805.936.056.176.286.406.867.897.937.967.998.03
West Hill 300
Average Day Demand0.080.080.080.080.080.080.080.080.080.090.090.090.09
Max Day Demand0.150.150.150.150.150.150.150.150.150.160.160.160.16
Peak Hour Demand0.240.240.240.240.240.240.240.250.250.260.260.260.26
Earlington 370
Average Day Demand0.090.100.100.100.100.100.100.110.120.130.130.130.13
Max Day Demand0.170.170.180.180.180.180.190.200.220.240.240.240.24
Peak Hour Demand0.280.280.290.290.290.300.300.320.360.390.390.390.39
West Hill 495
Average Day Demand0.300.310.320.330.330.340.350.380.420.420.420.420.42
Max Day Demand0.800.820.850.870.900.920.941.041.141.141.141.141.14
Peak Hour Demand1.301.341.381.421.461.501.531.691.851.861.861.861.86
Subtotal
Average Day Demand 0.480.490.500.510.510.520.530.570.620.640.640.640.64
Max Day Demand1.121.151.171.201.231.251.281.381.511.541.541.541.54
Peak Hour Demand1.821.861.911.951.992.042.082.252.462.512.512.512.51
Scenic Hill 370
Average Day Demand0.030.030.030.030.030.030.030.030.030.030.030.030.03
Max Day Demand0.050.050.050.050.050.050.050.060.060.060.060.060.06
Peak Hour Demand0.060.070.070.070.070.070.070.070.070.070.070.070.07
East Talbot Hill 300
Average Day Demand0.030.030.030.030.030.030.030.030.030.040.040.040.04
Max Day Demand0.050.050.050.050.050.050.050.050.060.060.060.060.06
Peak Hour Demand0.060.060.060.060.060.060.060.070.070.080.080.080.08
West Talbot Hill 300
Average Day Demand0.080.080.080.080.080.080.080.090.090.090.090.090.09
Max Day Demand0.150.150.150.150.150.150.150.160.160.170.170.170.17
Peak Hour Demand0.180.180.190.190.190.190.190.190.200.200.200.200.20
Tablot Hill 350
Average Day Demand0.440.440.440.450.450.450.450.460.480.510.510.510.51
Max Day Demand0.800.810.810.820.820.820.830.840.880.920.930.930.93
Peak Hour Demand0.980.990.991.001.001.011.011.031.081.131.141.141.14
Rolling Hills 395
Average Day Demand0.060.060.060.060.060.060.060.060.060.060.060.060.06
Max Day Demand0.100.100.100.100.100.100.100.100.100.100.100.100.10
Peak Hour Demand0.130.130.130.130.130.130.130.130.130.130.130.130.13
Projected Demand1-6 (mgd)
VALLEY OPERATIONAL AREA
HIGHLANDS 435/KENNYDALE OPERATIONAL AREA
HIGHLANDS 565 OPERATIONAL AREA
WEST HILL OPERATIONAL AREA
ROLLING HILLS/TALBOT HILL OPERATIONAL AREA
Table W-3 Projected ADD, MDD, and PHD by Pressure Zone
Table W-3 Water System Plan Update
Table W-3 City of Renton
Pressure Zone2011201220132014201520162017202120312041205120612071
Projected Demand1-6 (mgd)
Rolling Hills 490
Average Day Demand0.290.290.300.300.300.300.300.310.330.350.350.350.35
Max Day Demand0.530.540.540.540.550.550.560.570.610.640.650.650.65
Peak Hour Demand0.650.660.660.670.670.680.680.700.750.790.790.790.79
Rolling Hills 590
Average Day Demand0.400.410.410.410.410.410.420.420.450.460.460.460.47
Max Day Demand0.740.740.740.750.750.760.760.770.810.850.850.850.85
Peak Hour Demand0.900.910.910.920.920.930.930.951.001.041.041.041.04
Subtotal
Average Day Demand 1.331.341.341.351.361.361.371.401.471.541.541.541.55
Max Day Demand2.432.442.452.472.482.492.502.562.692.812.812.822.82
Peak Hour Demand2.972.993.003.023.033.053.073.133.293.443.443.453.45
Grand Total
Average Day Demand 8.158.298.438.568.708.828.949.4310.5811.4411.9312.4112.88
Max Day Demand15.1215.3915.6515.9116.1616.3916.6217.5519.7021.2722.1523.0223.89
Peak Hour Demand21.9522.3422.7423.1123.4823.8324.1825.5628.7231.0232.3233.6334.91
Notes:
1. Average Day Demand = Projected ERUs x 171 gpd/ERU + Wholesale Demand + Top Users + Miscellaneous Consumption + Leakage.
2. Wholesale demand projections for Skyway from the Skyway Water and Sewer District Comprehensive Plan - Water and Sewer Systems.
3. Miscellaneous Consumption is estimated to be 0.57 percent of the total system demand.
4. Distribution system leakage is assumed to be 17.8 percent of total system demand.
5. Maximum Day Demand = 1.83 x Average Day Demand (Skyway maximum day to average day peaking factor is from Skyway).
6. Peak Hour Demand/MDD peaking factors are 1.48 (Valley), 1.63 (West Hills), 1.49 (Highlands 435), 1.48 (Highlands 565), 1.22 (Rolling Hills)
TOTAL
1015202530
Water Demand (mgd)
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Appendix J
STANDARD SPECIFICATIONS & DETAILS
1
City of Renton
General Design and Construction Standards
for Water Main Extensions
The design of all water main extensions of the City of Renton Water System shall conform to
the design standards and requirements of the City and of the State of Washington Department
of Health’s latest Water System Design Manual and standards for Group A Public Water
Systems.
The construction of all City water system improvements shall comply with the City
Development regulations and standards, the latest City adopted version of Washington State
Department of Transportation (WSDOT) Standard Specifications for Road, Bridge, and
Municipal Construction as amended by APWA and by the City of Renton Public Works
Department.
GENERAL REQUIREMENTS FOR EXTENSION OF WATER MAINS
Fireflow requirements
Fireflow requirements shall be as determined by the City of Renton Fire Marshal.
A. The City Water Utility will determine the available fireflow using its computer
simulated hydraulic model of the City water system.
B. The minimum system pressure during fireflow analysis is 20psi at the fire location and
30 psi throughout the rest of the distribution system.
New developments or redevelopment of existing sites are required to meet the minimum City
fireflow requirements. The developer shall provide information to the City to determine the
fireflow requirements for the development or redevelopment. The developer is responsible for
the design and installation of all necessary water main improvements to provide the required
fireflow including off‐site and on‐site water mains. The change of use of existing buildings or
areas may also require the installation of the water main improvements.
Water main Sizing
The diameter of transmission main(s) shall be determined by hydraulic analysis to verify that
the main(s) can deliver the required fire flow demand for a proposed development or
2
redevelopment project. The minimum size distribution system line shall not be less than eight
(8) inches in diameter and for a looped system.
The minimum size distribution system in single family residential areas shall not be less than
eight inches (8”) in pipe diameter when the main is serving hydrants and domestic water
services. Exception to the minimum diameter might be made in short cul‐de‐sacs and in areas
where looping of a water main is not feasible and when no future extension will be required. In
these cases the main stubs could be a minimum of four inches (4”) in diameter if no fire
hydrants are connected. The sizing of dead‐end water main without fire hydrants shall provide
sufficient flow to the domestic meters and water services.
Water mains in multi‐family residential and in non‐residential areas shall be sized to provide the
required fire flow demand and shall not be less than eight inches (8”) in pipe diameter.
Water main Oversizing
If it is determined that it would be to the best interests of the City and the general locality to be
benefited thereby to install a larger size main than one then needed or considered by the
owners or developers immediately abutting the street, alley or easement in which such a main
is to be placed, then the City may at its own discretion, require the installation of such a larger
main in which case the City shall pay the difference in cost between the installation cost of the
similar main and of the larger main.
Any party required to oversize the water mains may request the City Water Utility participate in
the cost of the project.
Pipeline Velocities
In accordance with DOH recommendations, the City of Renton requires that the design of new
distribution mains provide for operating velocities less than or equal to eight feet per second (8
ft/sec) under fire flow conditions and other emergency demand conditions, and under peak
hour demand.
Water main Extension and Location
All water main extensions within the City of Renton will be extended in a manner in and along
routes which comply with the City’s comprehensive water system plan.
All water main extensions shall extend through and across the full frontage of the properties to
be served and shall also be extended through and to the extreme boundaries of the properties
being developed or redeveloped. Whenever possible, provisions shall be made for looping all
existing and new dead‐end mains associated with the proposed development or
3
redevelopment projects. An easement shall be provided to the adjacent property line or right‐
of‐way for looping of a temporary dead‐end main.
Preferred location for new water mains in City streets, absent conflict with other existing
utilities, is as follows:
(a) Water mains to be located on the north or east side of the street
(b) Water mains with diameter of 10‐inch or less to be located within the paved area of a
roadway and 4 feet from the face of the curb line.
(c) Water mains with diameter of 12‐inch or larger to be located within the paved area of
roadway and 6 feet from the face of curb line.
(d) Fittings (horizontal bends and blocking) shall be used when necessary to maintain the
uniform offset from the face of the curb line. Pipe deflection may be used on long
radius curve (radius of 500 feet) and shall not exceed one‐half of the pipe
manufacturer’s recommended maximum joint deflection.
(e) Water mains shall be installed with no less than three (3) feet cover from finish grade
for pipe with diameter of 10‐inch or less and with no less than four (4) feet of cover for
pipe with diameter 12‐inch or larger. Water mains shall have no more than six (6) feet
of cover from finish grade.
(f) When water mains are constructed on private properties and within paved areas, the
water mains shall be located outside of the parking stalls when possible.
(g) Easements are required for all water mains to be located on private properties and shall
have a minimum width of fifteen (15) feet.
(h) Water mains shall be encased in a steel casing when crossing under improvements
where the ability to remove and replace the pipe without disturbance to the
improvement is needed. Casings are required when water mains crossings occur under
rockeries over 4 feet high, under retaining wall footings, under reinforced earth
retaining walls, and under railroad tracks. Casings shall extend a minimum of 5 feet past
each edge of the improvements, or a distance equal to the depth of pipe whichever is
greater. The carrier pipe shall be supported by casing spacers, where casing length
exceeds 10 feet.
(i) Building setback requirements
10 feet minimum from building and retaining walls to water main
4
5 feet minimum from covered parking to water main
Clearances from Other Utilities
A. All clearances between water mains and other utilities listed below are from outside
edge to outside edge if each pipe
Utility Horizontal Clearance Vertical Clearance
Sanitary 10 feet 18 inches
Reclaimed Water 10 feet 18 inches
Storm 10 feet 18 inches
Gas, Electrical Power,
Telephone, Fiber Optics
5 feet 12 inches
B. Water services shall have at least 5 feet of horizontal separation from sanitary and
storm sewer stubs.
C. At points where thrust blocking is required, the minimum clearance between the back
of the concrete blocking and other buried utilities and structures shall be 5 feet.
D. When water main crosses above or below a sanitary sewer line, one full length of water
pipe shall be used with the pipe centered for maximum joint separation, and in
accordance with Washington Department of Ecology design criteria.
E. Vertical bends and blocking shall be used when joint deflection would exceed one‐half
of the pipe manufacturer’s recommended maximum deflection.
F. Pipe joints shall be restrained where slopes are 20% or greater. Joint restraint on slopes
shall be Megalug restrainer for mechanical joint fittings and tie/rod retainer clamp
assemblies for DI push‐on joints, or other methods as approved by the City. Anchor
blocks per City Standard details shall be used in conjunction with joint restraint system
where slope are 20% or greater.
G. A blow‐off assembly shall be installed at the end of all dead‐end lines 6‐inch or less in
diameter. A fire hydrant shall be installed at the end of all dead‐end lines 8‐inch or
larger in diameter.
H. Air/vacuum relief combination valves shall be installed at local high points in the water
main.
Fire Hydrants
5
The following information is provided as a guideline to be used during the design of water main
improvements and extensions. The final number of hydrants and their location shall be
determined and approved by the City of Renton Fire Marshal, in accordance with City codes,
development regulations and good fire engineering practice and standards.
A. All buildings constructed within the City of Renton shall be served by fire hydrants
installed in accordance with City’s codes and development regulations.
B. No building permit shall be issued until required plans have been submitted and
approved by the City.
C. No construction beyond the foundation shall be allowed until hydrants and mains are in
place.
D. Existing hydrants that do not conform to current City standard shall be replaced with
new conforming hydrants as part of the development and redevelopment projects.
E. Buildings, other than single family residences, located with portions of the building
more than one hundred and fifty feet (150’) in vehicular travel from a fire hydrant shall
have additional hydrants installed at the owner and/or developer’s expense.
F. Fire hydrants shall be located at intersections of public and private roads. The lateral
spacing of hydrants along roadways shall be predicated on hydrants being located at the
roadway intersections.
G. Single‐family residential: The maximum spacing of hydrants in single‐family residential
areas shall be 600 feet apart. Hydrant coverage shall be no more than 300 feet to any
residential dwellings and the distance shall be measured from the hydrant and along a
traveled roadway, access road and driveway to the dwellings.
H. Multi‐family/commercial: The location of the hydrants and the number of hydrants
shall be determined by the Fire Marshal. One hydrant will be required per 1,000 gallons
per minute of fireflow requirement. The maximum distance between hydrants in multi‐
family (including duplex), commercial, industrial areas shall be 300 feet. These hydrants
shall be located no closer than 50 feet from the structure and no greater than 300 feet.
The primary hydrant shall be no further than 150 feet from the structure.
I. Buildings that have a required fireflow of less than 2,500 gallons per minute may have
fire hydrants on one side of the building only.
J. When the required fireflow for a development or redevelopment project is over 2,500
gallons per minute, on‐site fire hydrants will be required and the fire hydrants shall be
6
served by a water main which loops around the building or complex of buildings and
reconnects back to a distribution supply main.
K. Fire hydrant runs over 50 feet in length must be 8‐inch in diameter and be terminated
with a tee, plug and hydrant assembly. Fire hydrant run less than 50 feet in length shall
be 6‐inch in diameter.
L. The pumper port of the fire hydrant shall face the street or fire access road. A 3‐feet
minimum clearance shall be provided around the outside of the hydrant for operation.
A 5‐feet minimum clearance shall be provided from the outside of the hydrant to
concrete walls, structures, utility poles and above grade electrical enclosures.
M. A fire hydrant is required within 50 feet of a fire department connection to a fire
sprinkler system.
N. Fire hydrants shall be installed in conformance with the latest City standard details and
specifications.
Water Valving
A. Water valves for twelve‐inch (12”) diameter and smaller water mains shall be resilient
seated gate valves. Butterfly valves shall be used when water mains exceed twelve‐inch
(12”) in diameter.
B. Water valves shall be installed along the water mains at a maximum spacing of four
hundred (400) feet and at the intersection of lateral lines. Additional valving may be
required for area isolation.
C. At water main intersections, valves shall be placed on 4 out 4 legs at each cross, and 3
out 3 legs at each tee (unless tapping an existing main). Water valves shall be located in
clusters when possible.
D. A water valve may be required near the end of the water main where future extensions
are anticipated.
E. Water valves should not be placed within the wheel path of vehicle traffic.
Water Service
All water service and appurtenances shall be installed in accordance to the City of Renton latest
Water Utility standard details and specifications.
1. Domestic Water Service:
7
A. Ownership: The City owns and shall maintain the service line from the tap at the main
to the meter, the meter setter, the meter tailpiece, and the meter box. The property
owner owns and shall maintain the connection fitting to the meter tailpiece, the service
line downstream of the meter tailpiece, and other appurtenances such as pressure
reducing valves, backflow prevention assemblies, etc. behind the meter.
B. A separate water meter and water service line will be required for each single‐family
residence, detached accessory dwelling unit, townhome, and commercial building.
C. All meters shall be the same size as the tap and service connection.
D. The minimum allowable size for a water meter to a single family residence shall be
5/8” x 3/4” with a 3/4” service line from the main to the meter. The developer shall
verify that minimum pressure can be maintained when service is flowing at anticipated
maximum levels and shall increase the size of the meter and the size of the private
water service line as necessary to reduce friction losses and drop in pressure.
E. The minimum allowable water service to a single family residence with a residential fire
sprinkler system shall be 1” x 1”. The developer shall check with the fire sprinkler
designer to verify the adequate size for the service line and for the water meter to
provide the required flow for domestic use and for the sprinkler system.
F. The minimum meter and service line for all commercial and multi‐family development is
1” x 1”.
G. Water services and meters of three inches (3”) and larger, including meter vaults, full‐
size by‐pass piping, valves, and associated piping will be purchased and installed by the
developer/contractor under City observation.
H. All new mixed‐used buildings shall have separate meters for the multi‐family portion
and the commercial portion of the building.
I. The location and size of the meters shall be shown on the project plans. The sizing of
water meters and service lines shall be determined by the developer based on the most
recent adopted version of the Uniform Plumbing Code. Water meters shall be located in
a level unobstructed area as close to the City main as possible with the distance not to
exceed fifty (50) feet.
J. Meters to single family residences shall be placed in landscape strips, or behind the
sidewalk, and within the right‐of‐way. Meters shall not be installed within driveways.
8
K. Meters to commercial development should be located near driveway entrances within
the right‐of‐way or within public utility easements in landscape areas, and near access
driveways.
L. An individual pressure reducing valve assembly (PRV) shall be installed downstream of
the water meter in accordance with the City standard details and with the latest edition
of the Uniform Plumbing Code when the service connection pressure exceeds 80 psi.
2. Fire Sprinkler Service:
A. Fire sprinkler service to all buildings, except for single‐family residences, shall be
installed by a separate water main connection and service line.
B. Fire sprinkler system connections to the City’s water system shall be owned and
maintained by the property owner, beginning immediately downstream of the
gate valve where the system connects to the City’s water main.
C. A backflow prevention assembly equipped with detector check meter shall be
installed on all fire sprinkler lines as required by and in accordance with the
latest revisions of WAC 246.290.490 or subsequent revisions, the City of Renton
Development Standards and Regulations, the City’s Cross‐Connection Control
Program Manual and the City standard details.
D. When the distance from the point of connection to a City water main to the fire
sprinkler riser assembly is less than fifty (50) feet, the backflow prevention
assembly may be installed as part of the sprinkler riser assembly and be placed
within the building riser room that is adjacent to an exterior wall of the building.
E. A post indicator valve (PIV) shall be placed at the property line for the fire
sprinkler connection between the public water main within the right‐of‐way and
the private fire sprinkler supply line. A PIV shall also be placed behind the
backflow prevention assembly for the fire sprinkler system.
F. Fire Department Connections (FDC’s) shall be placed within fifty (50) feet of a
fire hydrant assembly or as directed by the Fire Marshal.
G. The fire sprinkler system and supply line shall be designed by a Fire Protection
Engineer. Separate plans shall be submitted to the City Fire Marshal for review
and permitting.
H. Underground fire sprinkler supply lines shall be installed by a Washington State
Certified Level “U” contractor in accordance with WAC 212‐80‐010.
9
3. Landscape Irrigation
A separate landscape irrigation meter and service line shall be installed for all multi‐
family, mixed‐used, commercial development where water is used for landscape
purposes and will not enter the sanitary sewer system.
Backflow Prevention
All irrigation systems, fire sprinklers and other water uses which may or will cause the
contamination of the potable water supply by backflow, shall be required to install approved
backflow prevention assemblies to meet the requirements of WAC 246‐290‐490 “Cross‐
Connection Control Regulations in Washington State:, and the recommendations of the PNWS‐
AWWA Cross Connection Control Manual, latest edition, and the City’s Cross‐Connection
Control Program – Appendix G. Requirements may include premise isolation, point of use
protection, or a combination of the two.
All new multi‐family, mixed‐used, and commercial development or redevelopment projects
shall have a Reduced Pressure Backflow Assembly at the water meter or as near as possible to
the water meter for premise isolation. Premise isolation at the water meter by an approved air
gap or a reduced pressure backflow assembly is required for all sites utilizing an auxiliary
supply.
All backflow prevention assemblies installed shall be on the State of Washington DOH list of
approved backflow prevention assemblies, most recent edition at the time of installation.
Satisfactory testing shall be completed upon the installation, repair, or relocation of all
backflow assemblies, and annually thereafter. A complete test report must be submitted to the
Water Utility or Plumbing Inspector prior to final acceptance.
Connections to Existing System
A. Connections to existing mains including the installation of in‐line valve(s) shall be done
by a cut‐in tee and valve(s) unless otherwise approved by the City Water Utility.
B. When authorized by the City Water Utility, water mains shall be tapped by a City‐
approved “wet‐tap” contractor and under the City’s observation. Materials for tapping
tee and valves are described in the following section for Material Requirements and
Construction Standards for Water main Pipes and Appurtenances.
C. Size on size tapping tees are not allowed, unless a shell cutter, one size smaller than the
existing water man is used.
10
D. Connections to existing mains smaller than 8‐inch in diameter shall be made by cutting
in a tee, unless otherwise approved by the City Water Utility.
Easements for Public Water Main Improvement and Extension
A public water utility easement to the City is required for the installation, operation, and
maintenance of water mains on private property. The easement shall extend a minimum of
seven and one‐half (7.5) feet to each side of the centerline of the main, water meters, hydrants.
The easement shall be provided on City’s standard easement form. Legal description of the
easement along with a sketch of the easement shall be stamped and signed by a licensed land
surveyor and incorporated in the easement form as exhibits.
Material Requirements and Construction Standards for Water main Pipes and Appurtenances
Specifications for City approved materials of water main pipes, fittings and related
appurtenances and for the construction of water main improvements are shown in the
attached City’s Special Provisions and Amendments to the latest adopted version of WSDOT
Standards Plans for Road, Bridge and Municipal Construction and Water Utility Standard
Details.
It is the responsibility of the owner, designer, developer, contractor to verify with the City of
Renton regarding the latest update and revisions to these standards and details before the
preparation and submittal of the project development plans.
11
PREFACE FOR THE
CITY OF RENTON
CONSTRUCTION STANDARDS
FOR WATER MAIN IMPROVEMENTS
All utility, grading, street and other civil construction within the City Renton shall abide and fully
comply with the following standards:
A. City’s General Standards applicable to Developer Extensions of City Utility System per
Renton Municipal Code (RMC) 4‐6, and with the City’s Trench Restoration and Street
Overlay Requirements.
B. Washington State Department of Transportation (WSDOT) Standard Plans for Road and
Bridge Construction as amended and supplemented by the City of Renton Standard
Details, and the (2010) or latest adopted version of WSDOT Standard Specifications for
Road and Bridge Construction as amended and supplemented by the City of Renton
Standard Specifications contained herein. All reference to pay items are not applicable.
C. Manual on Uniform Traffic Control Devices (MUTCD) for Streets and Highways, current
edition
D. American Water Works Association Standards (AWWA), current edition.
E. These standards are to be used in addition to the information supplied on the approved
plans.
12
7-09 PIPE AND FITTINGS FOR WATER MAINS
7-09.3(15)A Ductile Iron Pipe
The first paragraph of Section 7-09.3(15)A is revised as follows:
(******)
Long radius (500 feet or more) curves, either horizontal or vertical, may be laid with standard pipe by
deflecting the joints. If the pipe is shown curved in the Plans and no special fittings are shown, the
Contractor can assume that the curves can be made by deflecting the joints with standard lengths of pipe.
If shorter lengths are required, the Plans will indicate maximum lengths that can be used. The amount of
deflection at each pipe joint when pipe is laid on a horizontal or vertical curve shall not exceed one half of
the manufacturer’s printed recommended deflections.
7-09.3(15)B Polyvinyl Chloride (PVC) Pipe (4 inches and Over)
Section 7-09.3(15)B is supplemented as follows:
(******)
Polyvinyl Chloride (PVC) Pipe shall not be used for water mains and appurtenances.
7-09.3(17) Laying Ductile Iron Pipe and Fittings with Polyethylene Encasement
The title and text of section 7-09.3(17) has been revised as follows:
(******)
The Contractor shall lay ductile iron pipe with a polyethylene encasement. Pipe and polyethylene
encasement shall be installed in accordance with AWWA C105. The polyethylene encasement shall also
be installed on all appurtenances, such as pipe laterals, couplings, fittings, and valves, with 8-mil
polyethylene plastic in accordance with Section 4-5 of ANSI 21.5 or AWWA C105.
The polyethylene wrap shall be tube type and black color. Any damage that occurs to the wrap shall be
repaired in accordance with ANSI/AWWA C105/A21.5-93.
Installation of the polyethylene encasement shall be considered incidental to the installation of the pipe
and no additional payment shall be allowed.
7-09.3(19)A Connections to Existing Mains
Section 7-09.3(19)A is revised and supplemented as follows:
(******)
The Contractor may be required to perform the connection during times other than normal working hours.
The Contractor shall not operate any valves on the existing system. Water system personnel will operate
all valves on the existing system for the Contractor when required.
No Work shall be performed on the connections unless a representative of the water department is present
to inspect the Work.
When not stated otherwise in the special provisions or on the plans, all connections to existing water
mains will be done by City forces as provided below:
City Installed Connections:
Connections to existing piping and tie-ins are indicated on the drawings. The Contractor must verify all
existing piping, dimensions, and elevations to assure proper fit.
Connections to the existing water main shall not be made without first making the necessary
arrangements with the Engineer in advance.
A two-week advance notice shall be required for each connection which requires a cutting of the existing
water mains or a shut-down of the existing water mains. The City reserves the right to re-schedule the
connection if the Work area is not ready at the scheduled time for the connection.
Work shall not be started until all the materials, equipment and labor necessary to properly complete the
13
Work are assembled on site.
The Contractor shall provide all saw-cutting, removal and disposal of existing surface improvements,
excavation, haul and disposal of unsuitable materials, shoring, de-watering, foundation material, at the
connection areas before the scheduled time for the connection by the City. The Contractor shall provide
all materials necessary to install all connections as indicated on the construction plans, including but not
limited to the required fittings, couplings, pipe spools, shackle materials to complete the connections.
The Contractor shall provide and install concrete blocking, polywrap the piping at the connections,
backfill and surface restoration at the locations shown on the plans for the connections to the existing
water mains.
The City will cut the existing main and assemble all materials.
7-09.3(21) Concrete Thrust Blocking and Dead-Man Block
Section 7-09.3(21) has been supplemented by adding the following:
(******)
Provide concrete blocking at all hydrants, fittings and horizontal or vertical angle points. Conform to the
City of Renton Standard Details for general blocking, and vertical blocks herein. All fittings to be
blocked shall be wrapped with 8-mil polyethylene plastic. Concrete blocking shall be properly formed
with plywood or other acceptable forming materials and shall not be poured around joints. The forms
shall be stripped prior to backfilling. Joint restraint (shackle rods), where required, shall be installed in
accordance with Section 7-11.3(15).
Provide concrete dead-man blocks at locations shown on the plans. The dead-man block shall include
reinforcing steels, shackle rods, installation and removal of formwork.
Blocking shall be commercial concrete (hand-mixed concrete is not allowed) and poured in place.
7-09.3(23) Hydrostatic Pressure Test
Section 7-09.3(23) is supplemented and revised as follows:
(******)
A hydrant meter and a backflow prevention device will be used when drawing water from the City
system. These may be obtained from the City by completing the required forms and making the required
security deposits. There will be a charge for the water used. Before applying the specified test pressure,
air shall be expelled completely from the pipe, valves and hydrants. If permanent air vents are not located
at all high points, the contractor shall install corporation cocks at such points so that the air can be
expelled as the line is filled with water. After all the air has been expelled, the corporation cocks shall be
closed and the test pressure applied. At the conclusion of the pressure test, the corporation cocks shall be
removed and plugged.
The quantity of water required to restore the pressure shall be accurately determined by either 1) pumping
from an open container of suitable size such that accurate volume measurements can be made by the
Owner or, 2) by pumping through a positive displacement water meter with a sweep unit hand registering
1 gallon per revolution. The meter shall be approved by the Engineer.
Acceptability of the test will be determined by two factors, as follows:
1. The quantity of water lost from the main shall not exceed the number of gallons per hour as listed
in the following table.
2. The loss in pressure shall not exceed 5 psi during the 2 hour test period.
All water used to perform hydrostatic pressure shall be charged a usage fee.
Allowable leakage per 1000 ft. of pipeline* in GPH
14
Nominal Pipe Diameter in inches
PSI 6" 8"10"12"16"20"24"
450 0.95 1.271.591.912.553.183.82
400 0.90 1.201.501.802.403.003.60
350 0.84 1.121.401.692.252.813.37
275 0.75 1.001.241.491.992.492.99
250 0.71 0.951.191.421.902.372.85
225 0.68 0.901.131.351.802.252.70
200 0.64 0.851.061.281.702.122.55
*If the pipeline under test contains sections of various diameters, the allowable leakage will be the sum of the computed leakage for each size. For those diameters or pressures not listed, the formula below shall be used:
The quantity of water lost from the main shall not exceed the number of gallons per hour as determined by the formula
L=ND P
7400
in which:
L = Allowable leakage, gallons/hour
N = No. of joints in the length of pipeline tested
D = Nominal diameter of the pipe in inches
P = Average test pressure during the leakage test, psi
The paragraph stating that “There shall not be an appreciable or abrupt loss in pressure during the 15 minute test period.” Is deleted.
7-09.3(24)A Flushing and "Poly-pigging" Section 7-09.3(24)A shall be revised and supplemented as follows: (******) Sections of pipe to be disinfected shall first be poly-pigged to remove any solids or contaminated material that may have become lodged in the pipe. If the main cannot be "poly-pigged", then a tap shall be provided large enough to develop a velocity of at least 2.5 fps in the main. The "Poly-pig" shall be equal to Girard Industries Aqua-Swab-AS, 2lb/cu-ft density foam with 90A durometer urethane rubber coating on the rear of the "Poly-pig" only. The "Poly-pig" shall be cylinder shaped with bullet nose or squared end. The paragraph stating: “Where dry calcium hypochlorite is used for disinfection of the pipe, flushing shall be done after disinfection.” is deleted. Dechlorination of all water used for disinfection shall be accomplished in accordance with the City of Renton Standard Details. Water containing chlorine residual in excess of that carried in the existing water system, shall not be disposed into the storm drainage system or any water way.
7-09.3(24)D Dry Calcium Hypochlorite Section 7-09.3(24)D has been replaced with: (******) Dry calcium hypochlorite shall not be placed in the pipe as laid.
15
7-09.3(24)K Retention Period
Section 7-09.3(24)K has been revised as follows:
(******)
Treated water shall be retained in the pipe at least 24 hours but no longer than 48 hours. After this period,
the chlorine residual at pipe extremities and at other representative points shall be at least 25 mg/l.
7-09.3(24)N Final Flushing and Testing
Section 7-09.3(24)N has been revised as follows:
(******)
Before placing the lines into service, a satisfactory report shall be received from the local or State health
department or an approved testing lab on samples collected from representative points in the new system.
Samples will be collected and bacteriological tests obtained by the Engineer.
7-09.3(25) Joint Restraint Systems
Section 7-09.3(25) is a new additional section:
(******)
General:
Where shown on the plans or in the specifications or required by the Engineer, joint restraint system
(shackle rods) shall be used. All joint restraint materials used shall be those manufactured by Star
National Products, 1323 Holly Avenue, PO Box 258, Columbus Ohio 43216, unless an equal alternate is
approved in writing by the Engineer.
Materials:
Steel types used shall be:
High strength low-alloy steel (cor-ten), ASTM A242, heat-treated, superstar "SST" series.
High strength low-alloy steel (cor-ten), ASTM A242, superstar "SS" series.
Items to be galvanized are to meet the following requirements:
ASTM A153 for galvanizing iron and steel hardware.
ASTM A123 for galvanizing rolled, pressed and forged steel shapes.
Joint restrainer system components:
Tiebolt: ASTM A242, type 2, zinc plated or hot-dip galvanized. SST 7:5/8" for 2" and 3" mechanical
joints, 3/4" for 4" to 12" mechanical joints, ASTM A325, type 3D, except tensile strength of full-
body threaded section shall be increased to 40,000 lbs. minimum for 5/8" and 60,000 lbs. minimum
for 3/4" by heat treating (quenching and tempering) to manufacturer’s reheat and hardness
specifications. SST 753: 3/4" for 14" to 24" mechanical joints. same ASTM specification as SST 7.
SST 77: 3/4" same as SST 7, except 1" eye for 7/8" rod. same ASTM specification as SST 7.
Tienut: heavy hex nut for each tiebolt: SS8: 5/8" and 3/4", ASTM A563, grade C3, or zinc plated.
S8: 5/8" and 3/4", ASTM A563, grade A, zinc plated or hot-dip galvanized.
Tiecoupling: used to extend continuous threaded rods and are provided with a center stop to aid
installation, zinc plated or hot-dip galvanized. SS10: for 5/8" and 3/4" tierods, ASTM A563, grade
C3. S10: for 5/8" and 3/4" tierods, ASTM A563, grade A.
Tierod: continuous threaded rod for cutting to desired lengths, zinc plated or hot-dip galvanized.
SS12: 5/8" and 3/4" diameter, ASTM A242, type 2; ANSI B1.1. S12: 5/8" and 3/4" diameter, ASTM
A36, A307.
16
Tiewasher: round flat washers, zinc plated or hot-dip galvanized. SS17: ASTM A242, F436. S17:
ANSI B18.22.1.
Installation:
Install the joint restraint system in accordance with the manufacturer’s instructions so all joints are
mechanically locked together to prevent joint separation. Tiebolts shall be installed to pull against
the mechanical joint body and not the MJ follower. Torque nuts at 75-90 foot pounds for 3/4" nuts.
Install tiecouplings with both rods threaded equal distance into tiecouplings. Arrange tierods
symmetrically around the pipe.
Pipe Diameter Number of 3/4"
Tie Rods Required
4" ............................................. 2
6" ............................................. 2
8" ............................................. 3
10" ............................................ 4
12" ............................................ 6
14" ............................................ 8
16" ............................................ 8
18" ............................................ 8
20" ............................................ 10
24" ............................................ 14
30" ............................................ (16‐7/8"rods)
36" ............................................ (24‐7/8"rods)
Where a manufacturer’s mechanical joint valve or fitting is supplied with slots for "T" bolts instead of holes, a flanged valve with a flange by mechanical joint adapter shall be used instead, so as to provide adequate space for locating the tiebolts. Where a continuous run of pipe is required to be restrained, no run of restrained pipe shall be greater than 60 feet in length between fittings. Insert long body solid sleeves as required on longer runs to keep tierod lengths to the 60 foot maximum. Pipe used in continuously restrained runs shall be mechanical joint pipe and tiebolts shall be installed as rod guides at each joint. Where poly wrapping is required all tiebolts, tienuts, tiecouplings, tierods, and tiewashers, shall be galvanized. All disturbed sections will be painted, to the Inspector’s satisfaction, with koppers bitomastic no. 300-m, or approved equal. Where poly wrapping is not required all tiebolts, tienuts, tiecouplings, tierods and tiewashers may be galvanized as specified in the preceding paragraph or plain and painted in the entirety with koppers bitumastic no. 800-m, or approved equal. Tiebolts, tienuts, tiecouplings, tierods, and tiewashers shall be considered incidental to installation of the pipe and no additional payment shall be made. 7-09.4 Measurement Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-09.4 is revised as follows: (******) Measurement of bank run gravel for trench backfill will be by the cubic yard measured by the calculation of neat lines based on maximum trench width per Section 2-09.4 or by the ton, in accordance with Section 1-09.
17
Measurement for payment of concrete thrust blocking and dead-man blocks will be per cubic-yard when
these items are included as separate pay items. If not included as separate pay items in the contract, then
thrust blocking and dead-man blocks shall be considered incidental to the installation of the water main
and no further compensation shall be made.
Measurement for payment for connections to existing water mains will be per each for each connection to
existing water main(s) as shown on the Plans.
7-09.5 Payment Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-09.5 is revised and supplemented as follows:
(******)
"Furnish and Install ____Ductile Iron Water Main & Fittings”, per lineal foot.
The unit contract price per linear foot for each size and kind of “Furnish and Install ____Ductile Iron
Water Main & Fittings" shall be full pay for the bid item as described in Section 1-09.14.
"Concrete Thrust Blocking and Dead-Man Anchor Blocks", per cubic yard.
The unit contract price per cubic yard for "Concrete Concrete Thrust Blocking and Dead-Man Anchor
Blocks " shall be full pay for the bid item as described in Section 1-09.14.
"Connection to Existing Water Mains", per each.
The unit contract price per each for “Connection to Existing Water Mains” shall be full pay for the bid
item as described in Section 1-09.14.
“Select Imported Trench Backfill”, per cubic yard or ton.
The unit contract price per cubic yard or ton for “Select Imported Trench Backfill” shall be full pay for
the bid item as described in Section 1-09.14.
"Removal and Replacement of Unsuitable Foundation Material", per ton or cubic yard.
The unit contract price per cubic yard or ton for "Removal and Replacement of Unsuitable Foundation
Material" shall be full pay for the bid item as described in Section 1-09.14. 7-12 VALVES FOR WATER MAINS
7-12.3(1) Installation of Valve Marker Post
Section 7-12.3(1) has been revised as follows:
(******)
Where required, a valve marker post shall be furnished and installed with each valve. Valve marker posts
shall be placed at the edge of the right-of-way opposite the valve and be set with 18 inches of the post
exposed above grade.
The rest of this section is deleted.
7-12.3(2) Adjust Existing Valve Box to Grade
Section 7-12.3(2) is a new section:
(******)
Valve boxes shall be adjusted to grade in the same manner as for manholes, as detailed in Section 7-
18
05.3(1) of the City of Renton Standard Details. Valve box adjustments shall include, but not be limited to,
the locations shown on the Plans.
Existing roadway valve boxes shall be adjusted to conform to final finished grades. The final installation
shall be made in accordance with the applicable portions of Section 7-12.
In the event that the existing valve box is plugged or blocked with debris, the Contractor shall use
whatever means necessary to remove such debris, leaving the valve installation in a fully operable
condition.
The valve box shall be set to an elevation tolerance of one-fourth inch (1/4") to one-half inch (1/2") below
finished grade.
7-12.4 Measurement Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-12.4 is supplemented by adding the following:
(******)
Adjustment of existing valve boxes to grade shall be measured per each, if included as a separate pay item
in the Contract; if not a separate pay item but required to complete the Work, then value box adjustment
shall be considered incidental.
Hydrant auxiliary gate valve will be included in the measurement for hydrant assembly and will not be
included in this measurement item.
7-12.5 Payment Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-12.5 is replaced with the following:
(******)
"Furnish and Install ____-Inch Gate Valve Assembly”, per each.
The unit contract price per each for "Furnish and Install ____-Inch Gate Valve Assembly" shall be full pay
for the bid item as described in Section 1-09.14.
"Air-Release/Air-Vacuum Valve Assembly," per each.
The unit contract price per for air-release/air-vacuum valve assembly shall be for all, labor, equipment and
material to complete the installation of the assembly including but not limited to, excavating, tapping the
main, laying and jointing the pipe and fittings and appurtenances, backfilling, testing, flushing, and
disinfection, meter box and cover, at location shown on the plans, and per the City of Renton Standard
Details, latest revision.
"Adjust Existing Valve Box to Grade (RC)," per each.
The contract bid price for "Adjust Existing Valve Box to Grade" above shall be full compensation for all
labor, material, tools and equipment necessary to satisfactorily complete the Work as defined in the
Contract Documents, including all incidental Work. If not included as a separate pay item in the Contract,
but required to complete other Work in the Contract, then adjustment of valve boxes shall be considered
incidental to other items of Work and no further compensation shall be made.
19
7-14 HYDRANTS
7-14.3(1) Setting Hydrants
Paragraph four and five of Section 7-14.3(1) is revised and the section is supplemented as follows:
(******)
After all installation and testing is complete, the exposed portion of the hydrant shall be painted with two
field coats. The type and color of paint will be designated by the Engineer.
Any hydrant not in service shall be identified by covering with a burlap or plastic bag approved by the
Engineer.
Hydrants shall be installed in accordance with AWWA specifications C600-93, Sections 3.7 and 3.8.1 and
the City of Renton Standard Details. Hydrant and guard posts shall be painted in accordance with the
standard details. Upon completion of the project, all fire hydrants shall be painted to the City of Renton
specifications and guard posts painted with two coats of preservative paint NO. 43-655 Safety Yellow or
approved equal. Fire hydrants shall be of such length as to be suitable for installation with connections to
6", 8" AND 10" piping in trenches 3 - 1/2 feet deep unless otherwise specified. The hydrant shall be
designed for a 4-1/2 foot burial where 12" and larger pipe is shown unless otherwise noted on the plan.
Fire hydrant assembly shall include: cast-iron or ductile iron tee (MJ x FL), 6" gate valve (FL x MJ), 6"
DI spool (PE x PE), 5-1/4" MVO fire hydrant (MJ connection), 4" x 5" Stortz adapter, cast iron valve box
and cover, 3/4" shackle rods and accessories, concrete blocks and two concrete guard posts (only if
hydrants are outside of right-of-way).
Joint restraint (Shackle Rods) shall be installed in accordance with Section 7-11.3(15).
7-14.3(3) Resetting Existing Hydrants
Section 7-14.3(3) is supplemented by adding the following:
(******)
All hydrants shall be rebuilt to the approval of the City (or replaced with a new hydrant). All rubber
gaskets shall be replaced with new gaskets of the type required for a new installation of the same type.
7-14.3(4) Moving Existing Hydrants
Section 7-14.3(4) is supplemented by adding the following:
(******)
All hydrants shall be rebuilt to the approval of the City (or replaced with a new hydrant). All rubber
gaskets shall be replaced with new gaskets of the type required for a new installation of the same type.
7-14.5 Payment Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-14.5 is revised as follows:
(******)
Payment will be made in accordance with Section 1-04.1, for each of the following bid items that are
included in the proposal:
“Furnish and Install Hydrant Assembly”, per each.
The unit contract price per each for " Furnish and Install Hydrant Assembly”, shall be full pay for the bid
item as described in Section 1-09.14.
“Resetting Existing Hydrants”, per each.
The unit contract price per each for “Resetting Existing Hydrant” shall be full pay for all Work to reset the
20
existing hydrant, including rebuilding (or replacement with a new hydrant), shackling, blocking, painting,
and guard posts and reconnecting to the main. The new pipe connecting the hydrant to the main shall be
considered incidental and no additional payment shall be made. Guard posts, shown on the Plans shall be
incidental to the contract.
“Moving Existing Hydrants”, per each.
The unit contract price per each for “Moving Existing Hydrant” shall be full pay for all Work to move the
existing hydrant, including new tee, rebuilding (or replacement with a new hydrant), shackling, blocking,
painting, and guard posts and reconnecting to the main. The new pipe connecting the hydrant to the main
shall be considered incidental and no additional payment shall be made. Guard posts, shown on the Plans
shall be incidental to the contract.
7-15 SERVICE CONECTIONS
7-15.3 Construction Details
Section 7-15.3 is supplemented as follows:
(******)
Pipe materials used to extend or replace existing water service lines shall be copper.
Where installation is in existing paved streets, the service lines shall be installed by a trenchless
percussion and impact method (hoe-hogging). If the trenchless percussion and impact method fails,
regular open trench methods may be used. 7-15.5 Payment Measurement and Payment Schedule for installation of water mains and appurtenances is shown in Section 1-09.14
Section 7-15.5 is revised as follows:
(******)
Payment will be made in accordance with Section 1-04.1, for the following bid item when it is included in
the proposal:
“Furnish and Install ____ In. Water Service Connection”, per each.
The unit contract price per each for " Furnish and Install ____ In. Water Service Connection”, shall be full
pay for the bid item as described in Section 1-09.14.
21
9-30 WATER DISTRIBUTION MATERIALS
9-30.1(1) Ductile Iron Pipe (RC)
Section 9-30.1(1) is revised as follows:
(******)
Ductile iron pipe shall be centrifugally cast and meet the requirements of AWWA C151. Ductile iron pipe
shall have a cement-mortar lining meeting the requirements of AWWA C104. All other ductile iron pipe
shall be Standard Thickness Class 52 or the thickness class as shown in the Plans.
9-30.3(1) Gate Valves (3 inches to 12 inches)
Section 9-30.3(1) is replaced with:
(******)
Valves shall be designed for a minimum water operating pressure of 200 PSI. Gate valves shall be Iowa
List 14, Mueller Company No. A2380, Kennedy, or M&H.
Approval of valves other than models specified shall be obtained prior to bid opening.
All gate valves less than 12" in diameter shall include an 8" x 24" cast iron gate valve box and extensions,
as required.
Gate valves shall conform to AWWA C500 and shall be iron body, bronze-mounted, double disc with
bronze wedging device and O-ring stuffing box.
Resilient Seated Gate Valves:
Resilient seated gate valves shall be manufactured to meet or exceed the requirements of AWWA Standard
C509 latest revisions.
All external and internal ferrous metal surfaces of the gate valve shall be coated for corrosion protection
with fusion bonded epoxy. The epoxy coating shall be factory applied to all valve parts prior to valve
assembly and shall meet or exceed the requirements of AWWA Standard C-550 latest revision. Valves
shall be provided with two (2) internal O-ring stems seals. The valves shall be equipped with one (1)
anti-friction washer. The resilient gate valve shall have rubber sealing surfaces to permit bi-directional
flow. The stem shall be independent of the stem nut or integrally cast.
Manufacturers of Resilient Seated Gate Valves shall provide the City on request that the valve materials
meet the City specifications.
Valves shall be designed for a minimum water operating pressure of 200 psi.
End connections shall be mechanical joints, flanged joints or mechanical by flanged joints as shown on
the project plans.
Resilient Seated Gate Valves shall be U.S. Metroseal 250, Clow, M&H Style 3067, Mueller Series 2370,
Kennedy.
Approval of valves other than model specified shall be obtained prior to bid opening. All gate valves less
than 12 inches in diameter shall include an 8"x24" cast iron gate valve box and extensions, as required.
All 12 inch diameter and larger resilient seated gate valves shall have a 1 inch by-pass assembly and shall
be installed in a concrete vault per City of Renton Standard Details, latest revision.
9-30.3(3) Butterfly Valves
Section 9‐30.3(3) is supplemented by adding the following:
(******)
22
Butterfly valves shall be Dresser 450 or Pratt Groundhog.
9-30.3(5) Valve Marker Posts
Section 9‐30.3(5) has been deleted and replaced with the following:
(******)
The valve markers shall be fabricated and installed in conformance with the Standard Drawings.
Valve markers shall be carsonite composite utility marker .375"x 6'‐0" or approved equal with blue label
"water.”
9-30.3(7) Combination Air Release/Air Vacuum Valves
Section 9‐30.3(7) has been supplemented as follows:
(******)
Air and vacuum release valves shall be APCO‐ Valve and Primer Corp, "Heavy‐Duty," combination air
release valve, or equal.
Installation shall be per the City of Renton Standard Details, latest revision.
Piping and fitting shall be copper or brass. Location of the air release valve as show on the plans is
approximate. The installation shall be set at the high point of the line.
9-30.3(8) Tapping Sleeve and Valve Assembly
Section 9‐30.3(8) is revised as follows:
(******)
Tapping sleeves shall be cast iron, ductile iron epoxy‐coated steel, or other approved material.
9-30.3(9) Blow-Off Assembly
Section 9‐30.3(9) is a new section:
(******)
Permanent blow‐off assembly shall be #78 Kupferle Foundry Co. or approved equal. Installation of
blow‐off permanent blow‐off assembly shall be per City of Renton Standard Details, latest revision. Pipe
and fittings shall be galvanized. Blow‐off assembly shall be installed at location(s) shown on the plans.
Temporary blow‐off assembly on new dead‐end water main shall be installed at location shown on the
plans.
Temporary blow‐off assemblies for testing and flushing of the new water mains will not be included
under this item and shall be considered incidental to the contract and no additional payment shall be
made.
23
9-30.5 Hydrants
Section 9-30.5 is supplemented by adding the following:
(******)
Fire hydrants shall be Iowa, Corey Type (opening with the pressure) or approved equal conforming to
AWWA C-502-85. Approval must be obtained prior to bid opening.
Compression type fire hydrants (opening against pressure) shall be Clow Medallion, M&H 929, Mueller
Super Centurion 200, conforming to AWWA C-502-85.
9-30.5(1) End Connections (RC)
Section 9‐30.5(1) is supplemented by adding the following:
(******)
Hydrants shall be constructed with mechanical joint connection unless otherwise specified in bid
proposal description.
9-30.5(2) Hydrant Dimensions
Section 9‐30.5(2) is replaced with the following:
(******)
Fire hydrants shall be Corey type (opening with the pressure) or compression type (opening against
pressure) conforming to AWWA C‐502‐85 with a 6 inch mechanical joint inlet and a main valve opening
(M.V.O.) of 5 1/4 inches, two 2 1/2 inch hose nozzles with National Standard Threads 7 1/2 threads per
inch and one 4 inch pumper nozzles with the new Seattle Pattern 6 threads per inch, 60 degrees V.
Threads, outside diameter of male tread 4.875 and root diameter 4.6263. Hydrants shall have a 1‐1/4"
pentagon operating nut opened by turning counter clockwise (left).
The two 2‐1/2" hose nozzles shall be fitted with cast iron threaded caps with operating nut of the same
design and proportions as the hydrant stem nut. Caps shall be fitted with suitable neoprene gaskets for
positive water tightness under test pressures.
The 4" pumper nozzle shall be fitted with a Stortz adapter, 4" Seattle Thread x 5" Stortz. Stortz adapter
shall be forged and/or extruded 6061‐T6 aluminum alloy, hardcoat anodized. Threaded end portion
shall have no lugs and 2 set screws 180 degrees apart. Stortz face to be metal, no gasket to weather.
Stortz cap to have synthetic molded rubber gasket, and shall be attached to hydrant adapter with 1/8"
coated stainless steel aircraft cable.
Fire hydrants shall be installed per City of Renton Standard Details for fire hydrants, latest revisions.
9-30.6(3)B Polyethylene Pipe
Section 9‐30.6(3)B has been modified as follows:
(******)
Polyethylene pipe shall not be used.
24
9-30.6(4) Service Fittings
Section 9‐30.6(4) has been revised as follows:
(******)
Fittings used for copper tubing shall be compression type with gripper ring.
9-30.6(5) Meter Setters
Section 9‐30.6(5) has been supplemented as follows:
(******)
Meter setters shall be installed per the City of Renton Standard Details for water meters, latest revision.
SECTION 10 REMOVAL OF UTILITY LOCATE MARKINGS FROM SIDEWALKS REQUIRED
The permittee will be required to remove utility locate marks on sidewalks only within the Downtown Core Area. The permittee shall remove the utility locate marks within 14 days of job completion.
Water Standard Details Index
300.0 – Water Plan General Notes
300.1 – Connection to Water Main with
Tapping Tee & Valve
300.2 – Connection to Water Main Cut In‐Line
& One Valve
300.3 – Connection to Water Main In‐Line Tee
& Two Valves
300.4 – Connection to Water Main In‐Line Tee
& Three Valves
300.5 – Connection to Water Main Existing Tee
or End Line Cap
300.6 – Poly Pig Station for Cleaning of Water
Mains
310.1 – Fire Hydrant Assembly
310.3 – Hydrant Marker Layout
320.1 – ¾” and 1” water Service
320.2 – 1 ½” and 2” Water Service Located in
Planting Strip
320.3 – 2” and 1 ½” Water Service Located in
Right of Way Behind Sidewalk
320.4 – 3”, 4”, & 6” Compound Domestic
Water Meter Assembly
330.1 – Valve Box, Marker & Operating Nut
Extension
330.2 – Concrete Blocking for Horizontal and
Downward Vertical Bends
330.3 – Concrete Blocking for Vertical Fittings
330.5 – Shackle Rods and Tie Bolts
340.1 – 2” Blow‐Off Permanent Assembly
340.2 – 2” Blow‐Off Temporary Assembly
340.3 – 1” Air & Vacuum Release Assembly
340.4 – 2” air & Vacuum Release Assembly
340.5 – ¾” & 1” Individual Pressure Reducing
Valve Assembly
340.6 – Pressure reducing Station In‐Vault
Standard
340.7 – Pressure Reducing Station In‐Vault
with In‐Line Valve
340.8 – ¾” to 2” Double Check Valve Assembly
for Irrigation or Residential Fire
Sprinkler
350.2 – Reduced Pressure Backflow Assembly
in Hot Box
360.1 – 4” DDCV Assembly with Standpipe
Outside Connection
360.2 – 6”, 8”, & 10” Double Detector Check
Assembly with Standpipe Outside
Installation
360.3 – 4” DDCV Assembly without Standpipe
Outside Installation
360.4 – 6”, 8”, & 10” Double Detector Check
Assembly without Standpipe Outside
Installation
360.5 – Inside Building Install for 3” and Larger
Detector Double Check Valve Assembly
Utility Specifications
Water Utility Notes and Specifications
THESE NOTES SHALL APPEAR ON PROJECTS FOR THE WATER UTILITY.
1. All work material shall be in conformance with the standards and specifications of the
City of Renton Planning/Building/Public Works Department and the latest edition of the
WSDOT/APWA Standards and Specifications, as approved and modified by the City of
Renton in the Renton Standard Plans & Specifications. A set of approved plans shall be
kept on site at all times during construction.
2. The hours of work in the street right of way shall be limited to 8:30 AM to 3:30 PM on
weekdays unless otherwise approved in writing by the Public Works Department at
(425) 430-7301. The Police Department, Fire Department, and 911 shall be notified 24
hours in advance of any work in the right of way.
3. All locations of existing utilities shown are approximate and it shall be the contractor’s
responsibility to verify the true and correct location so as to avoid damage or
disturbance. For utility locates call 48-hour locators 800-424-5555.
4. An approved Traffic Control Plan is required to be submitted at the Pre-Construction
meeting.
5. Datum for Vertical Control shall be North American Vertical Datum 1988 Meters, and for
Horizontal Control shall be North American Datum 1983/1991 Meters unless otherwise
approved by the City of Renton Public Works Department. Reference benchmark and
elevations are noted on the plans.
6. All watermain pipe is to be cement lined ductile iron pipe conforming to AWWA C110
and C111 or latest revision, thickness Class 52. Cement mortar lining and seal coating
shall conform to AWWA C104 or latest revision. Pipe joints to be push-on or mechanical
joint. Bedding to be Class C. All ductile iron pipe and fittings shall be polyethylene
wrapped per ANSI/AWWA C105/A21.5-93 Standards.
7. Cast iron and ductile iron fittings shall be cement lined, pressure rated as noted on
plans, and in accordance with ANSI/AWWA C110/A21.10-87. Cement lining shall be in
accordance with ANSI/AWWA C104/421/4-90. If fittings are 3 to 12 inches in diameter
and have mechanical joints, the fittings shall in accordance with either ANSI/AWWA
C110-A21.10-87 or ANSI/AWWA C153/A21.53-94. Three (3) inch to 12 inch diameter
fittings, which have mechanical joints and/or flanged joints, shall be in accordance with
ANSI/AWWA C110/A21.10.87 or a combination of ANSI/AWWA C110/A21.10.87 and
ANSI/AWWA C153/A21.53-94 such that the portion of the fitting with a mechanical
joint(s) may be with ANSI/AWWA C153/A21.53-94 and that portion of the fitting with
flanged joint(s) shall be in accordance with AWWA C110/A21.10-87. Acceptance testing
in accordance with section 53.53 of ANSI/AWWA section 10-4.3 of ANSI/AWWA
C110/A21.10-87 shall be obtained by the contractor and transmitted to the owner.
8. Gate valves shall be iron body, bronzed-mounted, double disc with bronze wedging
device and O-ring stuffing box (AWWA C500) or of resilient seated type (AWWA C509).
Utility Specifications
Valves shall be designed for a minimum water operating pressure of 200 psi. Gate
valves shall be Clow List 14, Mueller Company NO. A2380 or M & H.
9. Fire hydrants shall be Corey type (opening with the pressure) or compression type
(opening against pressure) conforming to AWWA C-502-85 with a 6 inch mechanical
joint inlet and a main valve opening (M.V.O.) of 5-1/4 inch, two 2-1/2 inch hose nozzles
with National Standard Threads 7-1/2 threads per inch and one 4 inch pumper nozzle
with the new Seattle Pattern 6 threads per inch, 60 degrees V. Threads: outside
diameter of male thread 4.875 and root diameter 4.6263. Hydrants shall have a 1-1/4
inch pentagon operating nut opened by turning counter clockwise (left).
10. The two 2-1/2 inch hose nozzles shall be fitted with cast iron threaded caps with
operating nut of the same design and proportions as the hydrant stem nut. Caps shall
be fitted with suitable neoprene gaskets for positive water tightness under test
pressures.
11. The 4 inch pumper nozzle shall be fitted with a Storz adapter, 4 inch Seattle Thread x 5
inch Storz. Storz adapter shall be forged and/or extruded 6061-T6 aluminum alloy,
hardcoat anodized. Threaded end portion shall have no lugs and two set screws 180
degrees apart. Storz face to be metal, no gasket to weather. Storz cap to have
synthetic molded rubber gasket, and shall be attached to hydrant adapter with 1/8 inch,
coated, stainless steel, aircraft cable.
12. Fire hydrants shall be painted with two coats of paint. Preservative paint number 43-
655 safety yellow or approved equal.
13. Pumper connection to face roadway assembly.
14. Fire hydrants shall be installed per City of Renton Standard Detail for fire hydrants,
latest revision.
15. All watermains 10 inches and smaller to maintain a minimum cover of 36 inches below
finish grade. All watermain 12 inches and larger shall be at a minimum of 48 inches
below finish grade. Where utility conflicts occur, watermains are to be lowered to clear.
16. All watermains 6 inches and larger in diameter shall be cleaned with pipe cleaning
“PIGS” prior to disinfection. The “Poly pigs” shall be Girard Industries Aqua Swab-AS or
approved equal, 2 lb/cu. ft. density foam with 90A durometer urethane rubber coating
on the rear of “PIG” only.
17. “PIGS” shall be cylinder shaped with bullet nose or square end. The contractor will
perform the cleaning operation.
18. All watermains and services shall be pressure tested to a minimum of 200 psi or 150 psi
over operating pressure, in accordance with the specifications of the City of Renton and
the Washington State Health Department. All pressure testing shall be done in the
presence of a representative of the City of Renton. The quantity of water lost from the
main shall not exceed the number of gallons per hour as listed in City of Renton
Utility Specifications
Standard Plans & Specifications 7-11.3(11). The loss in pressure shall not exceed 5 psi
during the 2 hour test period.
19. All watermains and services shall be disinfected by the injection of a 50 ppm (minimum
concentration) chlorine/water solution. Dry Calcium Hypochlorite shall NOT be placed in
the pipe as laid. Chlorine shall be metered/injected in accordance with Section 7-
11.3(12)E or 7-11.3(12)F of the Standard Specifications referenced above.
20. A pre-construction conference is required prior to any construction. A minimum of five
(5) working days notice is required for scheduling.
21. Twenty-four (24) hours notice will be required prior to starting new construction.
22. It shall be the contractor’s responsibility to secure all necessary permits prior to starting
construction.
23. Installation of corporate stops, water services, lines and meters shall not be done until
all service agreements, meter applications, construction permits, and payment of fees
have been made to the City of Renton.
24. All connection to existing mains is to be accomplished by the City of Renton, except wet
taps, which may be made by approved wet tap contractors with prior approval from the
Public Works Department. All necessary excavation and materials are to be supplied by
the contractor and be on-site prior to City notifications.
25. Inspection will be accomplished by a representative of the City of Renton. It shall be
the contractor’s responsibility to notify Development Services twenty four (24) hours in
advance of backfilling all construction. The contractor, as well as the engineers, shall
keep as-built drawings.
26. Contractor to provide plugs and temporary blow-off assemblies for testing and purity
acceptance prior to final tie-in.
27. All joint restraint systems (shackle rods, nuts, bolts, etc.) shall be as manufactured by
the Star Manufacturing Company of Columbus Ohio, or equal, approved in writing by the
Public Works Department.
28. Asphalt and concrete street paving shall be sawcut to a minimum depth of two (2)
inches. Oil mat streets may be spade cut. All surface concrete, pavement, sidewalks,
curb, gutters, and driveway approaches shall be sawcut to a minimum depth of two (2)
inches or removed to an existing expansion joint.
29. A temporary cold mix asphalt patch shall be placed on the day of initial excavation with
a permanent, sealed patch to be placed, to City of Renton policy, within 10 days. Call
for subgrade inspection prior to placement of final patch. *
30. For City projects such as telemetry conduit, the PVC pipe used shall be All chemical
process lines shall be schedule 80 PVC pipe. Schedule 40 in unimproved areas and
schedule 80 PVC pipe under improved areas.
1
CITY OF RENTON
TRENCH RESTORATION AND STREET OVERLAY REQUIREMENTS
Amended April 4, 2005 by Ordinance 5131
SECTION 1 PURPOSE
The purpose of this code section is to establish guidelines for the restoration of City streets disturbed by installation of
utilities and other construction activities. Any public or private utilities, general contractors, or others permitted to work in the
public right-of-way will adhere to the procedures set forth in this policy.
SECTION 2 DEFINITIONS
Engineer: The term engineer shall denote the City project manager, inspector and/or plan reviewer, or their designated
representative.
SECTION 3 HOURS OF OPERATIONS
Hours for work within the roadway for asphalt overlays or trench restoration shall be as directed by the Traffic Control Plan
requirements and as approved by the Traffic Operations Engineer.
SECTION 4 APPLICATION
1. The following standards shall be followed when doing trench or excavation work within the paved portion of any
City of Renton right-of-way.
2. Modifications or exemptions to these standards may be authorized by the Planning/Building/Public Works
Administrator, or authorized representative, upon written request by the permittee, their contractor or engineer and
demonstration of an equivalent alternative.
SECTION 5 INSPECTION
The Engineer may determine in the field that a full street-width (edge-of-pavement to edge-of-pavement) overlay is required
due to changes in the permit conditions such as, but not limited to the following:
1. There has been damage to the existing asphalt surface due to the contractor's equipment.
2. The trench width was increased significantly or the existing pavement is undermined or damaged.
3. Any other construction related activities that require additional pavement restoration.
SECTION 6 CITY OF RENTON STANDARDS
1. All materials and workmanship shall be in accordance with the City of Renton Standard and Supplemental
Specifications (current adopted version) except where otherwise noted in these Standards. Materials and
workmanship are required to be in conformance with standards for the Standard Specifications for Road, Bridge,
and Municipal Construction prepared by the Washington State Chapter of the American Public Works Association
(APWA) and the Washington State Department of Transportation (WSDOT) and shall comply with the most current
edition, as modified by the City of Renton Supplemental Specifications.
2
An asphalt paver shall be used in accordance with Section 5-04.3(3) of Standard Specifications. A “Layton
Box” or equal may be used in place of the power-propelled paver. Rollers shall be used in accordance with
Section 5-04.3(4) of the Standard Specifications. “Plate Compactors” and “Jumping Jacks” SHALL NOT be
used in lieu of rollers.
2. Trench backfill and resurfacing shall be as shown in the City of Renton Standard Details, unless modified by the
City Permit. Surfacing depths shown in the Standard Details are minimums and may be increased by the Engineer
to meet traffic loads or site conditions.
SECTION 7 REQUIREMENT FOR PATCHING, OVERLAY, OVERLAY WIDTHS
All trench and pavement cuts shall be made by sawcut or by grinding. Sawcuts or grinding shall be a minimum of one foot
(1’) outside the trench width. The top two inches (2") of asphalt shall be ground down to a minimum distance of one foot (1’)
beyond the actual outside edges of the trench and shall be replaced with two inches (2”) of Class B asphalt, per City of
Renton Standards. At the discretion of the engineer, a full street width overlay may be required.
Lane-width or a full street-width overlay will be determined based upon the location and length of the proposed trench within
the roadway cross-section. Changes in field conditions may warrant implementation of additional overlay requirements.
1. Trenches (Road Crossings):
a. The minimum width of a transverse patch (road crossing) shall be six and one-half feet (6.5’). See City of
Renton Standard Plan Drawing #HR –23 (SP Page: H032A).
b. Any affected lane will be ground down two inches (2”) and paved for the entire width of the lane.
c. Patch shall be a minimum of one foot (1’) beyond the excavation and patch length shall be a minimum of
an entire traveled lane.
d. If the outside of the trenching is within three feet (3’) of any adjacent lane line, the entire adjacent traveled
lane affected will be repaved
e. An area including the trench and one foot (1’) on each side of the trench but not less than six and one half
feet (6.5’) total for the entire width of the affected traveled lanes will be ground down to a depth of two
inches (2”). A two-inch (2”) overlay of Class B asphalt will be applied per City standards.
2. Trenches Running Parallel With the Street:
a. The minimum width of a longitudinal patch shall be four and one-half feet (4.5’). See City of Renton
Standard Plan Drawing #HR-05 (SP Page H032).
b. If the trenching is within a single traveled lane, an entire lane-width overlay will be required.
c. If the outside of the trenching is within three feet (3') of any adjacent lane line, the entire adjacent traveled
lane affected will be overlaid.
d. If the trenching is greater than, or equal to 30% of lane per block (660-foot maximum block length), or if the
total patches exceed 12 per block, then the lanes affected will be overlaid. Minimum overlay shall include all
patches within the block section.
3
e. The entire traveled lane width for the length of the trench and an additional ten feet (10’) at each end of the
trench will be ground down to a depth of two inches (2”). A two-inch (2”) overlay of Class B will be applied
per City standards.
3. Potholing: Potholing shall meet the same requirements as trenching and pavement restoration. Potholing shall
be a minimum of one foot (1’) beyond the excavation. All affected lanes will be ground down to a depth of two
inches (2”) and paved not less than six and one half feet (6.5’) wide for the entire width of the lane. Potholes
greater than five feet (5’) in length, width or diameter shall be restored to trench restoration standards. In all cases,
potholes shall be repaired per Renton Standard Plan # HR05 (SP Page H032). Restoration requirements
utilizing vactor equipment will be determined by the engineer.
SECTION 8 PAVEMENT REMOVAL IN LIEU OF GRINDING
The contractor in all cases can remove the pavement in the replacement area instead of grinding out the specified
two inches (2”) of asphalt. Full pavement replacement to meet or exceed the existing pavement depth will be
required for the area of pavement removal.
SECTION 9 TRENCH BACKFILL AND RESTORATION CONSTRUCTION REQUIREMENTS
1. Trench restoration shall be either by a patch or overlay method, as required and indicated on City of Renton
Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033).
2. All trench and pavement cuts, which will not be overlaid, shall be made by sawcut or grinding. Sawcuts shall be a
minimum of two feet (2') outside the excavated trench width.
3. All trenching within the top four feet (4') shall be backfilled with crushed surfacing materials conforming to Section
4-04 of the Standard Specifications. Any trenching over four feet (4') in depth may use materials approved by the
Engineer or Materials Lab for backfilling below the four-foot (4') depth. If the existing material (or other material) is
determined by the Engineer to be suitable for backfill, the contractor may use the native material, except that the
top six inches (6") shall be crushed surfacing top course material. The trench shall be compacted to a minimum
ninety-five percent (95%) density, as described in Section 2-03 of the Standard Specifications. In the top six feet
(6') of any trench, backfill compaction shall be performed in eight to 12-inch (8-12”) lifts. Any trench deeper than six
feet (6') may be compacted in 24-inch lifts, up to the top six-foot (6') zone.
All compaction shall be performed by mechanical methods. The compaction tests may be performed in maximum
four-foot (4') vertical increments. The test results shall be given to the Engineer for review and approval prior to
paving. The number and location of tests required shall be determined by the Engineer.
4. Temporary restoration of trenches for overnight use shall be accomplished by using MC mix (cold mix), Asphalt
Treated Base (ATB), or steel plates, as approved by the Engineer. ATB used for temporary restoration may be
dumped directly into the trench, bladed out and rolled. After rolling, the trench must be filled flush with asphalt to
provide a smooth riding surface. If the temporary restoration does not hold up, the Contractor shall repair the patch
within eight hours of being notified of the problem by the City. This requirement applies 24 hours per day, seven
days a week. In the event that the City determines to repair the temporary patch, the contractor shall reimburse the
City in an amount that is double the City’s cost in repairing the patch, with the second half of the reimbursement to
represent City overhead and hidden costs.
5. Asphalt Concrete Class E or Class B shall be placed to the compacted depth as required and indicated on City of
Renton Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033) or as directed by the
Engineer. The grade of asphalt shall be AR-4000W. The materials shall be made in conformance with Section 9-
02.1(4) of the Standard Specifications.
4
6. Tack coat shall be applied to the existing pavement at edge of saw cuts and shall be emulsified asphalt grade CSS-
1, as specified in Section 9-02.1(6) of the Standard Specifications. Tack shall be applied as specified in Section 5-
04 of the Standard Specifications.
7. Asphalt Concrete Class E or Class B, shall be placed in accordance with Section 5-04 of the Standard
Specifications; except those longitudinal joints between successive layers of asphalt concrete shall be displaced
laterally a minimum of twelve inches (12”), unless otherwise approved by the Engineer. Fine and coarse aggregate
shall be in accordance with Section 9-03.8 of the Standard Specifications.
All street surfaces, walks or driveways within the street trenching areas shall be feathered and shimmed to an
extent that provides a smooth-riding connection and expeditious drainage flow for the newly paved surface.
Feathering and shimming shall not decrease the minimum vertical curb depth below four inches (4") for storm water
flow. The Engineer may require additional grinding to increase the curb depth available for storm water flow in
areas that are inadequate. Shimming and feathering, as required by the Engineer, shall be accomplished by raking
out the oversized aggregates from the Class B mix as appropriate.
Surface smoothness shall be per Section 5-04.3(13) of the Standard Specifications. The paving shall be corrected
by removal and repaving of the trench only. Asphalt patch depths will vary based upon the streets being trenched.
The actual depths of asphalt and the work to be performed shall be as required and indicated on City of Renton
Standard Plans #HR-05, HR-23, and HR-22 (SP Pages #H032, H032A, and H033).
Compaction of all lifts of asphalt shall be a minimum ninety-two percent (92%) of density as determined by WSDOT
Test Method 705. The number of tests required shall be determined by the Engineer.
Testing shall be performed by an independent testing lab with the results being supplied to the Engineer. Testing is
not intended to relieve the contractor from any liability for the trench restoration. It is intended to show the
inspector, and the City, that the restoration meets these specifications.
8. All joints shall be sealed using paving asphalt AR-4000W.
9. When trenching within the unpaved roadway shoulder(s), the shoulder shall be restored to its original condition, or
better.
10. The final patch or overlay shall be completed as soon as possible and shall not exceed fifteen (15) working days
after first opening the trench. This time frame may be adjusted if delays are due to inclement paving weather or
other adverse conditions that may exist. However, delaying of final patch or overlay work is subject to the
Engineer's approval. The Engineer may deem it necessary to complete the work within the fifteen (15) working day
time frame and not allow any time extension. Should this occur, the Contractor shall perform the necessary work,
as directed by the Engineer.
11. A City of Renton temporary Traffic Control Plan (from Renton Transportation Engineering) shall be submitted and
approved by the Engineer a minimum of three (3) working days prior to commencement of work.
SECTION 10 REMOVAL OF UTILITY LOCATE MARKINGS FROM SIDEWALKS REQUIRED
The Permittee will be required to remove utility locate marks on sidewalks only within the Downtown Core Area. The
permittee shall remove the utility locate marks within 14 days of job completion.
H:\Trench Restoration\TRS 2005.doc
Appendix K
HYDRAULIC MODELING, CALIBRATION AND RESULTS
1218 THIRD AVENUE, SUITE 1600 • SEATTLE, WASHINGTON 98101 • P. 206.684.6532 • F. 206.903.0419
CITY OF RENTON
WATER SYSTEM PLAN UPDATE
HYDRAULIC MODEL DEVELOPMENT AND
CALIBRATION
FINAL
February 14, 2012
CAROLLO ENGINEERS i February 14, 2012
pw://Carollo/Documents/Client\WA\Renton\8595A00\Deliverables\Appendices\App_K.docx
CITY OF RENTON
WATER SYSTEM PLAN UPDATE
HYDRAULIC MODEL DEVELOPMENT AND CALIBRATION
TABLE OF CONTENTS
Page
1.0 INTRODUCTION ....................................................................................................... 1
2.0 HYDRAULIC MODEL DEVELOPMENT .................................................................... 1
2.1 Model Demands .............................................................................................. 1
2.2 Operational Area Diurnal Patterns ................................................................... 1
3.0 HYDRAULIC MODEL CALIBRATION ....................................................................... 2
3.1 Model Calibration Overview and Methodology ................................................. 3
3.1.1 Macro Calibration .............................................................................. 3
3.1.2 Fire Flow Test Calibration ................................................................. 3
3.2 Model Calibration Results................................................................................ 8
4.0 SUMMARY ................................................................................................................ 8
LIST OF TABLES
Table 1 Fire Flow Field Test Data ................................................................................ 6
Table 2 Hydraulic Model Fire Test Calibration Results ................................................ 9
LIST OF FIGURES
Figure 1 Renton System-Wide Diurnal Patterns ............................................................ 2
Figure 2 Fire Flow Test Locations ................................................................................. 5
CAROLLO ENGINEERS 1 February 14, 2012
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City of Renton
APPENDIX K – HYDRAULIC MODEL
1.0 INTRODUCTION
This appendix provides an overview of the procedures used in the development and calibration
of the City of Renton’s (City’s) water system hydraulic model, as part the City’s Water System
Plan Update.
2.0 HYDRAULIC MODEL DEVELOPMENT
The City provided its existing hydraulic computer model of the water distribution system to
Carollo for use as part of the Water System Plan Update. The existing hydraulic model uses the
InfoWater modeling software platform, developed by Innovyze (formerly MWH Soft).
This section summarizes the procedures used to update the existing hydraulic model per the
Water System Plan Update Scope of Services.
2.1 Model Demands
Water demands in the City’s existing hydraulic model were geocoded by the City based on
customer billing records for the year 2010. As part of the model update process, these demands
were reviewed by pressure zone to verify the demand estimates provided in Chapter 3 of the
Water System Plan Update.
The 2010 water demands in the City’s existing water model were allocated based on the City’s
total annual water consumption. The demands were then scaled to match the total demand
(including unaccounted for water) for both the summer (maximum day demand) and winter
(average day demand) scenarios. Existing average and maximum day demands per pressure
zone and per operational area are discussed in Chapter 3 of the Water System Plan Update.
2.2 Operational Area Diurnal Patterns
Custom diurnal patterns for both winter and summer demands were developed for each of the
City’s five operational areas. The custom diurnal patterns are based on SCADA data provided
by the City for winter and summer periods in 2009, and normalized so that the average of the
hourly multipliers is equal to one. The diurnal patterns are then multiplied by the 24-hour
average demands input at the model nodes for the planning scenario to simulate the normal
daily demand variations that occur during a typical winter or summer demand condition. This
provides operating data on how the tanks and pumps move water through the system.
The diurnal patterns were developed by performing a mass balance between production (i.e.,
well and other source flows), storage tank inflow or outflow, and booster pump station flows in
each operational area. Because SCADA data was not provided for the City’s pressure reducing
valves (PRVs), it was assumed that these facilities were not operating during the time period for
which the diurnal patterns were developed.
CITY OF RENTON
HYDRAULIC MODEL
CAROLLO ENGINEERS 2 February 14, 2012
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As shown on Figure 1, the system-wide winter diurnal shows minimal demands during the early
morning hours with more significant peaking occurring from the hours of 6:00 a.m. to 2:00 p.m.
The maximum hourly peaking factor for the system-wide winter diurnal is 1.47, which occurs
during the 12:00 p.m. hour.
The system-wide summer diurnal pattern is characterized by a more consistent water demand
throughout the day, with a maximum peaking factor of 1.34, which occurs during the 8:00 p.m.
hour. A typical diurnal pattern is usually characterized by having two peaks, one occurring in the
morning around the 6:00 a.m. to 8:00 a.m. hours, and the other occurring at night around the
6:00 p.m. to 7:00 p.m. hour.
The individual operational area diurnals are included as an attachment to this appendix on
pages A-1 through F-2 following the main text of the appendix. These will be used during
system analysis EPS runs.
Figure 1 Renton System-Wide Diurnal Patterns
3.0 HYDRAULIC MODEL CALIBRATION
The purpose of the water system hydraulic model is to estimate, or predict, how the water
system will respond under a given set of demand conditions. One way to test the accuracy of
the hydraulic model is to create a set of known conditions in the water system and then
compare the results observed in the field against the results of the hydraulic model simulation
using the same conditions. Flow tests conducted in the field on the water system are a standard
method to verify the models accuracy and confirm the accuracy of the data used in the hydraulic
model construction. Analysis of the flow test data also provides a greater understanding of how
the water system operates.
Field testing can indicate errors in the data used to develop the hydraulic model, or show that a
condition might exist in the field not otherwise known. For example, valves, which are reported
as being open, might actually be closed (or vice versa), an obstruction could exist in a pipeline,
or pressure settings for a PRV may be slightly different than noted. Field testing can also correct
erroneous model data such as incorrect pipe diameters or connections. Data obtained from the
field tests can be used to determine appropriate roughness coefficients for mains, as roughness
coefficients can vary with age and pipe material.
0.0
0.2
0.4
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Renton System-Wide Winter Diurnal
Renton System-Wide
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Renton System-Wide Winter Diurnal
Renton System-Wide
Renton System-Wide Summer Diurnal Renton System-Wide Winter Diurnal
CITY OF RENTON
HYDRAULIC MODEL
CAROLLO ENGINEERS 3 February 14, 2012
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3.1 Model Calibration Overview and Methodology
The model calibration consisted of two parts, a macro calibration and a fire flow (hydrant) test
calibration. This section describes both of the calibration steps.
3.1.1 Macro Calibration
The initial calibration process consisted of a macro calibration. Carollo ran the model under
existing demand conditions in order verify that the model forecasted pressures are reasonable
and to make sure that the reservoirs were replenishing following peak hour demands.
The macro calibration process included executing the following steps to ensure that the model
produces reasonable results.
· Transmission Main Connectivity. Carollo used the connectivity features of the hydraulic
modeling software to verify the connectivity of the transmission and distribution mains
within the distribution system. Proper connectivity verifies that there are no interruptions
in the pipe connections. Possible issues found using the connectivity locators are
reviewed on a case-by-case basis to determine whether adjustments needed to be
made to the connectivity of the model. The model output reports on headloss (ft/kft) and
velocity (ft/s) were also used to locate possible connectivity issues that required
adjustment.
· System Pressures. The macro calibration compared the model output to typical
pressures of each pressure zone. This process allowed Carollo to verify that model
facility size (pipe diameters and pump capacity), ground elevations, connectivity, and
operational controls were reasonable.
· Facility Characteristics. Hydraulic model results for the City’s wells, booster pump
stations, and tanks were reviewed and compared to the City’s available SCADA data to
verify that data input into the hydraulic model (e.g., pump curves, operational controls,
PRV settings, etc.) produced results comparable to what the system experiences.
3.1.2 Fire Flow Test Calibration
The second step in model calibration after macro calibration is to compare model results to field
pressures measured during a series of fire flow tests. This process is used to develop a
calibrated hydraulic model by closely matching model simulated pressures to field pressures
under similar demand and system boundary conditions. The model parameters that are
adjusted during this process are primarily the pipeline roughness coefficients, although other
parameters can also be adjusted as calibration results are generated.
Hazen-Williams roughness coefficients, or C-factors, have industry accepted value ranges
based on pipeline material, diameter, and age. Characteristics specific to the City’s water
distribution system such as water quality, temperature, construction methodologies, material
suppliers, and other factors may result in roughness coefficients that differ from the average of
the industry accepted ranges. Fire flow calibration refines the value of roughness coefficients
that best indicate the conditions of the City’s distribution system.
CITY OF RENTON
HYDRAULIC MODEL
CAROLLO ENGINEERS 4 February 14, 2012
pw://Carollo/Documents/ pw://Carollo/Documents/Client\WA\Renton\8595A00\Deliverables\Appendices\App_K.docx
During average day flows, roughness coefficients have a relatively small effect on the operation
of the distribution system. However, as the flows increase in the system on higher demand days
or during fire flows, velocity within pipelines increase and roughness coefficients contribute
more to overall system headloss. Fire flow tests artificially create high demand events to
generate more headloss, allowing a better estimation of the pipeline roughness coefficients.
Fire flow tests stress the distribution system by creating a differential between the hydraulic
grade line (HGL) at the point of hydrant flow and the system HGL at neighboring hydrants. This
HGL differential increases the effect of the roughness coefficients on system losses and allows
adjustments to the model to match model pressures to field pressures within an acceptable
tolerance. As the model is adjusted to match system pressures, roughness coefficients should
be adjusted only within a tolerance of industry accepted roughness coefficient ranges. If a
model is unable to match the calibration results without leaving the acceptable range of
roughness coefficient values for a given pipeline material and age, there may be cause for
further investigation of a previously unknown field condition. Examples of such conditions, which
typically arise during hydraulic model calibration, include closed valves, partially closed or
malfunctioning valves, extreme corrosion within pipelines, connectivity and diameter errors, and
diurnal patterns of large water users.
The City performed hydrant flow tests as part of this project so that the most current data
available could be utilized to update the model. Nineteen sites were selected within the City’s
service area. The sites were selected so that each of the City’s pressure zones had at least one
fire flow test and so that the locations were not near pump stations, valves, or storage facilities,
if possible. In general, the test sites are consistent with fire test sites used in the previous Water
System Plan, although some sites were relocated. As part of the previous Water System Plan,
the City did not conduct Fire Test 8. For this reason, Fire Test 8 was not conducted as part of
this Water System Plan Update. The fire flow test locations are shown on Figure 2. The fire flow
test data is included in Table 1.
Each fire test was conducted by first measuring static pressures at two “pressure” hydrants.
Next, two “flowing” hydrants were opened to release a large amount of flow and to cause a
significant headloss and pressure drop. With the flowing hydrants open, measurements were
recorded to quantify the flow rate from each hydrant, and to determine the residual pressure of
the two pressure hydrants.
The City also provided SCADA data for the majority of major system facilities, including supply
sources (i.e., wells, Springbrook Springs), tanks, and booster pump stations. SCADA data were
not available for the City’s PRVs.
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10
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14
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15
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16
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17
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6
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t
3
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6
18
N
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3
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19
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20
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2
IDAdjacent Hydrant 2 Elevation (feet)Adjacent Hydrant 2 Pressure Gage IDAdjacent Hydrant 2 Static Pressure (psi)Adjacent Hydrant 2 Residual Pressure (psi)
N2
4
2
3
2
1
7
2
5
4
.
5
N
3
0
7
3
4
4
7
1
.
8
5
8
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3
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8
2
7
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5
3
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3
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4
6
4
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3
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1
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9
2
6
4
7
3
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4
6
4
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2
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8
2
2
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4
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1
.
6
2
0
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6
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6
5
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3
4
1
7
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6
6
8
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5
SW
2
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6
4
7
2
.
7
5
5
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1
7
6
2
9
1
7
2
.
5
5
2
.
5
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0
0
1
1
1
5
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2
1
8
5
5
7
N
W
0
0
3
1
7
8
4
3
5
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6
1
9
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3
3
8
6
4
8
3
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4
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1
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1
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8
9
4
1
8
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3
1
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2
9
1
2
1
.
5
4
8
5
5
5
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5
3
2
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3
1
1
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4
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1
1
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3
1
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5
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5
3
6
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3
2
1
3
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1
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6
4
0
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4
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4
5
1
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2
3
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7
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7
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1
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6
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6
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4
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8
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2
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8
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5
4
3
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5
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3
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2
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1
3
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2
NW
0
5
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3
2
1
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3
.
1
4
5
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5
N
W
0
5
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2
6
6
1
9
7
6
0
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1
0
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4
0
0
1
7
4
5
5
S
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1
0
9
3
8
8
4
7
9
6
2
NE
1
3
5
4
1
6
.
5
1
6
4
5
2
N
E
1
3
7
4
1
8
4
6
4
.
1
4
9
NE
5
6
4
4
5
6
1
4
6
.
1
3
4
.
4
N
E
5
8
9
4
5
3
4
4
6
.
7
3
7
.
8
SE
0
6
2
4
5
2
4
5
8
2
5
.
4
S
E
1
2
8
4
6
6
.
5
1
5
3
.
3
2
0
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8
SE
1
7
0
4
5
3
4
5
9
.
3
2
1
.
8
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1
6
6
4
1
4
1
7
5
3
7
.
1
Pr
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s
s
u
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d
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a
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t
D
a
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a
CAROLLO ENGINEERS 8 February 14, 2012
pw://Carollo/Documents/Client\WA\Renton\8595A00\Deliverables\Appendices\App_K.docx
Two model simulations, or scenarios, were created in the hydraulic model for each fire flow test.
The first scenario was called the "static" run, which simulated the water system just prior to each
test. The second scenario, referred to as the "residual" run, simulated the system during the test
while the hydrants were flowing. A total of 19 tests were performed on the system and therefore
a total of 38 computer simulations were created to calibrate the model. According to City staff,
the West Hill Reservoir and the West Hill Booster Pump Station were out of service for all of the
fire flow tests, except for tests 5, 10, and 15. For test 5, 10, and 15, the West Hill Reservoir and
West Hill Booster Pump Station were back in service, but the Hazen Reservoir was out of
service.
In both static and residual model scenarios, model demands were scaled up or down to
represent the model demand during the fire flow test as reasonably as possible. Based on
SCADA data provided by the City, the system-wide daily demand for March 2011 is estimated to
have been roughly 4,000 gpm. These demands were then adjusted to account for the time of
day using the operational area diurnal pattern multipliers presented in Section 2.2. Tank levels
were also adjusted in each fire test scenario to match the actual tank levels recorded during the
tests. In addition, the initial status of the City’s wells and booster pumps were modified so that
they matched actual conditions (i.e., open or closed) recorded during the tests.
The residual model scenarios are identical to the appropriate static model scenarios, except that
fire flow demands were added to the appropriate nodes.
3.2 Model Calibration Results
Numerous simulations were performed during the calibration phase. For several test locations,
the hydrant tests were re-run to check system changes and verify test results. Adjustments were
made to the model between runs to minimize the differences between the model and field
results. A detailed summary of the calibration results is shown in Table 1. The table lists the
results of each field test conducted and corresponding hydraulic model results.
For the pressure hydrants, the results are considered acceptable if the model simulated
pressures are within 10 psi or have a 10 percent difference to the field data. Model pressures
within 5 psi or 5 percent of the field measurements are considered very good. As shown in
Table 2, all of the model simulations resulted in pressure differences within 10 psi or 10 percent
of the field measured pressures. For many of these tests, the model-simulated pressures as
compared to the field-measured pressures are within 5% or the very good range.
4.0 SUMMARY
For all of the fire flow tests performed by City staff, the model-simulated pressures as compared
to the field-measured pressures are in the good or very good range. The model is calibrated for
the system as it is configured and operated in 2011. Therefore, the model is an appropriate tool
for projecting future conditions.
Ta
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2
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s
1
3
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4
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2
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1
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9
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2
2
9
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4
N
1
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6
F
1
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0
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4
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5
1
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1
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4
2
3
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2
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2
0
1
1
1
3
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2
1
3
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8
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1
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9
6
2
,
3
8
0
-
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No
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d
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s
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0
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2
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8
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3
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3
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.
Adjusted roughness
3
3
/
4
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2
0
1
1
1
0
:
0
6
1
0
:
0
7
S
0
7
6
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1
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6
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5
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1
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1
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3
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0
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1
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7
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6
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9
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2
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1
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8
0
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7
4
3
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1
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2
0
1
1
8
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3
2
8
:
3
3
S
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1
4
8
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1
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y
1
9
6
2
,
3
8
0
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-
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SW
8
6
8
F
2
2,7
5
0
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Ea
r
l
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t
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n
37
0
Ta
l
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s
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d
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(
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f
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p
s
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Pr
e
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f
f
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(
%
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e
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s
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s
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PR
V
4
7
h
a
d
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r
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t
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v
a
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n
(
1
8
8
.
1
6
)
;
a
d
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d
t
o
1
4
9
.
0
t
o
m
a
t
c
h
C
i
t
y
t
a
b
l
e
.
PRV 2-4 adjusted to 37 psi to matach residule data
wi
t
h
i
n
5
p
s
i
Co
m
p
a
r
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s
o
n
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r
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T
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m
b
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St
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m
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s
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d
u
a
l
Tim
e
Hy
d
r
a
n
t
Ty
p
e
Hy
d
r
a
n
t
No
.
Fi
e
l
d
(
M
e
a
s
u
r
e
d
)
R
e
s
u
l
t
s
M
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d
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S
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m
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l
a
t
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d
R
e
s
u
l
t
s
Ta
b
l
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2
H
y
d
r
a
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l
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c
M
o
d
e
l
F
i
r
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T
e
s
t
C
a
l
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b
r
a
t
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n
R
e
s
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l
t
s
Ta
b
l
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2
W
a
t
e
r
S
y
s
t
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m
P
l
a
n
U
p
d
a
t
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Ta
b
l
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2
C
i
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y
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f
R
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t
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Da
t
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St
a
t
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R
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s
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d
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S
t
a
t
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R
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s
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d
u
a
l
M
e
a
s
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d
M
o
d
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d
D
i
f
f
e
r
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n
c
e
C
o
m
m
e
n
t
s
Hy
d
r
a
n
t
Fl
o
w
(g
p
m
)
St
a
t
i
c
Pr
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s
s
u
r
e
(p
s
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)
Re
s
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d
u
a
l
Pr
e
s
s
u
r
e
(p
s
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)
St
a
t
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c
Pr
e
s
s
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r
e
(
p
s
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)
Re
s
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d
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a
l
Pr
e
s
s
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r
e
(
p
s
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)
Pr
e
s
s
u
r
e
Di
f
f
e
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e
n
c
e
(
p
s
i
)
Pr
e
s
s
u
r
e
Di
f
f
e
r
e
n
c
e
(
%
)
Pr
e
s
s
u
r
e
D
r
o
p
(p
s
i
)
Co
m
p
a
r
i
s
o
n
Fi
r
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T
e
s
t
Nu
m
b
e
r
Pr
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s
s
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e
Zo
n
e
St
a
t
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c
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m
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s
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d
u
a
l
Tim
e
Hy
d
r
a
n
t
Ty
p
e
Hy
d
r
a
n
t
No
.
Fi
e
l
d
(
M
e
a
s
u
r
e
d
)
R
e
s
u
l
t
s
M
o
d
e
l
S
i
m
u
l
a
t
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d
R
e
s
u
l
t
s
11
3
/
3
/
2
0
1
1
1
2
:
4
7
1
2
:
4
9
N
E
1
0
8
6
F
1
1,8
8
0
-
-
-
-
-
-
--
-
-
-
-
-
-
-
-
-
-
-
-
-
-
NE
1
1
4
6
F
2
2,3
3
0
-
-
-
-
-
-
--
-
-
-
-
-
-
-
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-
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NE
3
2
1
P
1
--
5
1
.
6
4
0
.
4
5
3
.
0
3
8
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6
1
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4
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1
.
8
2
.
8
%
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4
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4
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1
1
.
2
1
4
.
4
3
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2
NE
1
0
0
7
P
2
--
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1
.
2
3
6
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7
5
2
.
1
3
3
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5
0
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9
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8
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8
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6
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1
4
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5
1
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6
4
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1
12
3
/
4
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0
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8
:
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:
5
4
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2
7
6
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1
1,3
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0
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-
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-
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-
-
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-
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-
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2
7
0
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2
1,3
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0
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7
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6
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7
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0
9
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1
7
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7
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9
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7
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3
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9
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4
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9
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5
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6
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4
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2
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4
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2
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9
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2
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5
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4
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1
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6
1
6
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5
5
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3
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1
0
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3
4
1
0
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3
5
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0
9
2
F
1
62
0
-
-
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-
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-
-
-
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-
-
-
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-
-
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PR
V
'
s
a
d
d
j
s
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u
l
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2
0
1
1
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e
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e
r
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,
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d
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c
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t
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5
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3
6
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1
.
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8
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8
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%
15
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0
1
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5
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2
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3
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3
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1
2,9
1
0
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-
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.
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Ho
u
r
l
y
M
u
l
t
i
p
l
i
e
r
Hour
Valley Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.1.2412:00 p.m. - 1:00 p.m.0.82
1:00 a.m. - 2:00 a.m.1.321:00 p.m. - 2:00 p.m.0.71
2:00 a.m. - 3:00 a.m.1.352:00 p.m. - 3:00 p.m.0.74
3:00 a.m. - 4:00 a.m.1.48 3:00 p.m. - 4:00 p.m.0.61
4:00 a.m. - 5:00 a.m.1.234:00 p.m. - 5:00 p.m.0.73
5:00 a.m. - 6:00 a.m.1.055:00 p.m. - 6:00 p.m.0.88
6:00 a.m. - 7:00 a.m.0.906:00 p.m. - 7:00 p.m.0.77
7:00 a.m. - 8:00 a.m.0.747:00 p.m. - 8:00 p.m.0.88
8:00 a.m. - 9:00 a.m.0.998:00 p.m. - 9:00 p.m.1.18
9:00 a.m. - 10:00 a.m.1.029:00 p.m. - 10:00 p.m.1.13
10:00 a.m. - 11:00 a.m.1.0510:00 p.m. - 11:00 p.m.1.11
11:00 a.m. - 12:00 p.m.0.9111:00 p.m. - 12:00 a.m.1.17
Figure A-1
Valley Operational Area
SummerDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
A‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.5
1.0
1.5
2.0
2.5
Ho
u
r
l
y
M
u
l
t
i
p
l
i
e
r
Hour
Valley Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.5612:00 p.m. - 1:00 p.m.2.04
1:00 a.m. - 2:00 a.m.0.241:00 p.m. - 2:00 p.m.1.79
2:00 a.m. - 3:00 a.m.0.372:00 p.m. - 3:00 p.m.1.34
3:00 a.m. - 4:00 a.m.0.313:00 p.m. - 4:00 p.m.1.02
4:00 a.m. - 5:00 a.m.0.054:00 p.m. - 5:00 p.m.0.96
5:00 a.m. - 6:00 a.m.0.505:00 p.m. - 6:00 p.m.0.66
6:00 a.m. - 7:00 a.m.1.246:00 p.m. - 7:00 p.m.0.84
7:00 a.m. - 8:00 a.m.1.377:00 p.m. - 8:00 p.m.0.81
8:00 a.m. - 9:00 a.m.1.278:00 p.m. - 9:00 p.m.0.69
9:00 a.m. - 10:00 a.m.1.539:00 p.m. - 10:00 p.m.0.76
10:00 a.m. - 11:00 a.m.1.7810:00 p.m. - 11:00 p.m.0.98
11:00 a.m. - 12:00 p.m.2.07 11:00 p.m. - 12:00 a.m.0.80
Figure A-2
Valley Operational Area
WinterDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
A‐2
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
Ho
u
r
l
y
M
u
l
t
i
p
l
i
e
r
Hour
West Hill Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.4912:00 p.m. - 1:00 p.m.1.03
1:00 a.m. - 2:00 a.m.0.351:00 p.m. - 2:00 p.m.0.98
2:00 a.m. - 3:00 a.m.0.442:00 p.m. - 3:00 p.m.0.85
3:00 a.m. - 4:00 a.m.0.433:00 p.m. - 4:00 p.m.0.91
4:00 a.m. - 5:00 a.m.0.604:00 p.m. - 5:00 p.m.1.03
5:00 a.m. - 6:00 a.m.1.005:00 p.m. - 6:00 p.m.1.04
6:00 a.m. - 7:00 a.m.1.106:00 p.m. - 7:00 p.m.1.22
7:00 a.m. - 8:00 a.m.1.247:00 p.m. - 8:00 p.m.1.47
8:00 a.m. - 9:00 a.m.1.348:00 p.m. - 9:00 p.m.1.63
9:00 a.m. - 10:00 a.m.1.329:00 p.m. - 10:00 p.m.1.41
10:00 a.m. - 11:00 a.m.1.1910:00 p.m. - 11:00 p.m.1.03
11:00 a.m. - 12:00 p.m.1.1711:00 p.m. - 12:00 a.m.0.74
Figure B-1
West Hill Operational Area
SummerDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
B‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Ho
u
r
l
y
M
u
l
t
i
p
l
i
e
r
Hour
West Hill Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.4712:00 p.m. - 1:00 p.m.1.25
1:00 a.m. - 2:00 a.m.0.411:00 p.m. - 2:00 p.m.1.21
2:00 a.m. - 3:00 a.m.0.292:00 p.m. - 3:00 p.m.1.15
3:00 a.m. - 4:00 a.m.0.273:00 p.m. - 4:00 p.m.1.10
4:00 a.m. - 5:00 a.m.0.534:00 p.m. - 5:00 p.m.1.16
5:00 a.m. - 6:00 a.m.0.775:00 p.m. - 6:00 p.m.1.21
6:00 a.m. - 7:00 a.m.1.076:00 p.m. - 7:00 p.m.1.22
7:00 a.m. - 8:00 a.m.1.337:00 p.m. - 8:00 p.m.1.24
8:00 a.m. - 9:00 a.m.1.348:00 p.m. - 9:00 p.m.1.19
9:00 a.m. - 10:00 a.m.1.379:00 p.m. - 10:00 p.m.1.06
10:00 a.m. - 11:00 a.m.1.41 10:00 p.m. - 11:00 p.m.0.91
11:00 a.m. - 12:00 p.m.1.3411:00 p.m. - 12:00 a.m.0.69
Figure B-2
West Hill Operational Area
Winter Diurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
B‐2
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Ho
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l
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M
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t
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p
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Hour
Highlands 435/Kennydale Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.9512:00 p.m. - 1:00 p.m.0.82
1:00 a.m. - 2:00 a.m.0.931:00 p.m. - 2:00 p.m.0.82
2:00 a.m. - 3:00 a.m.0.972:00 p.m. - 3:00 p.m.0.76
3:00 a.m. - 4:00 a.m.0.973:00 p.m. - 4:00 p.m.0.73
4:00 a.m. - 5:00 a.m.1.024:00 p.m. - 5:00 p.m.0.80
5:00 a.m. - 6:00 a.m.1.175:00 p.m. - 6:00 p.m.0.93
6:00 a.m. - 7:00 a.m.1.186:00 p.m. - 7:00 p.m.1.00
7:00 a.m. - 8:00 a.m.1.077:00 p.m. - 8:00 p.m.1.21
8:00 a.m. - 9:00 a.m.1.038:00 p.m. - 9:00 p.m.1.49
9:00 a.m. - 10:00 a.m.1.029:00 p.m. - 10:00 p.m.1.30
10:00 a.m. - 11:00 a.m.0.8910:00 p.m. - 11:00 p.m.1.08
11:00 a.m. - 12:00 p.m.0.8511:00 p.m. - 12:00 a.m.1.02
Figure C-1
Highlands 435/Kennydale Operational
AreaSummerDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
C‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Ho
u
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l
y
M
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l
t
i
p
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Hour
Highlands 435/Kennydale Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.5612:00 p.m. - 1:00 p.m.1.17
1:00 a.m. - 2:00 a.m.0.401:00 p.m. - 2:00 p.m.1.25
2:00 a.m. - 3:00 a.m.0.352:00 p.m. - 3:00 p.m.1.10
3:00 a.m. - 4:00 a.m.0.583:00 p.m. - 4:00 p.m.1.06
4:00 a.m. - 5:00 a.m.0.604:00 p.m. - 5:00 p.m.1.15
5:00 a.m. - 6:00 a.m.0.755:00 p.m. - 6:00 p.m.1.22
6:00 a.m. - 7:00 a.m.1.186:00 p.m. - 7:00 p.m.1.19
7:00 a.m. - 8:00 a.m.1.277:00 p.m. - 8:00 p.m.1.28
8:00 a.m. - 9:00 a.m.1.32 8:00 p.m. - 9:00 p.m.1.17
9:00 a.m. - 10:00 a.m.1.279:00 p.m. - 10:00 p.m.1.06
10:00 a.m. - 11:00 a.m.1.2310:00 p.m. - 11:00 p.m.0.91
11:00 a.m. - 12:00 p.m.1.1611:00 p.m. - 12:00 a.m.0.75
Figure C-2
Highlands 435/Kennydale Operational
AreaWinterDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
C‐2
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Ho
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l
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M
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t
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Hour
Highlands 565 Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.7612:00 p.m. - 1:00 p.m.0.88
1:00 a.m. - 2:00 a.m.0.791:00 p.m. - 2:00 p.m.0.84
2:00 a.m. - 3:00 a.m.0.822:00 p.m. - 3:00 p.m.0.84
3:00 a.m. - 4:00 a.m.0.903:00 p.m. - 4:00 p.m.0.86
4:00 a.m. - 5:00 a.m.1.034:00 p.m. - 5:00 p.m.0.86
5:00 a.m. - 6:00 a.m.1.005:00 p.m. - 6:00 p.m.0.91
6:00 a.m. - 7:00 a.m.1.076:00 p.m. - 7:00 p.m.1.10
7:00 a.m. - 8:00 a.m.1.077:00 p.m. - 8:00 p.m.1.30
8:00 a.m. - 9:00 a.m.1.198:00 p.m. - 9:00 p.m.1.48
9:00 a.m. - 10:00 a.m.1.139:00 p.m. - 10:00 p.m.1.35
10:00 a.m. - 11:00 a.m.0.9610:00 p.m. - 11:00 p.m.1.04
11:00 a.m. - 12:00 p.m.0.9911:00 p.m. - 12:00 a.m.0.84
Figure D-1
Highlands 565 Operational Area
SummerDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
D‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Ho
u
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l
y
M
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l
t
i
p
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e
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Hour
Highlands 565 Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.6512:00 p.m. - 1:00 p.m.1.31
1:00 a.m. - 2:00 a.m.0.571:00 p.m. - 2:00 p.m.1.34
2:00 a.m. - 3:00 a.m.0.522:00 p.m. - 3:00 p.m.1.26
3:00 a.m. - 4:00 a.m.0.433:00 p.m. - 4:00 p.m.1.18
4:00 a.m. - 5:00 a.m.0.514:00 p.m. - 5:00 p.m.1.14
5:00 a.m. - 6:00 a.m.0.635:00 p.m. - 6:00 p.m.1.18
6:00 a.m. - 7:00 a.m.0.836:00 p.m. - 7:00 p.m.1.24
7:00 a.m. - 8:00 a.m.0.907:00 p.m. - 8:00 p.m.1.22
8:00 a.m. - 9:00 a.m.1.148:00 p.m. - 9:00 p.m.1.26
9:00 a.m. - 10:00 a.m.1.219:00 p.m. - 10:00 p.m.1.18
10:00 a.m. - 11:00 a.m.1.2610:00 p.m. - 11:00 p.m.0.92
11:00 a.m. - 12:00 p.m.1.2411:00 p.m. - 12:00 a.m.0.86
Figure D-2
Highlands 565 Operational Area
Winter Diurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
D‐2
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Ho
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l
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M
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t
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Hour
Rolling Hills/Talbot Hill Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.1.0412:00 p.m. - 1:00 p.m.0.89
1:00 a.m. - 2:00 a.m.0.981:00 p.m. - 2:00 p.m.0.83
2:00 a.m. - 3:00 a.m.1.042:00 p.m. - 3:00 p.m.0.89
3:00 a.m. - 4:00 a.m.1.133:00 p.m. - 4:00 p.m.0.79
4:00 a.m. - 5:00 a.m.1.144:00 p.m. - 5:00 p.m.0.84
5:00 a.m. - 6:00 a.m.1.22 5:00 p.m. - 6:00 p.m.0.86
6:00 a.m. - 7:00 a.m.1.106:00 p.m. - 7:00 p.m.0.98
7:00 a.m. - 8:00 a.m.0.977:00 p.m. - 8:00 p.m.1.14
8:00 a.m. - 9:00 a.m.1.018:00 p.m. - 9:00 p.m.1.13
9:00 a.m. - 10:00 a.m.0.969:00 p.m. - 10:00 p.m.1.06
10:00 a.m. - 11:00 a.m.0.9210:00 p.m. - 11:00 p.m.1.07
11:00 a.m. - 12:00 p.m.0.9811:00 p.m. - 12:00 a.m.1.02
Figure E-1
Rolling Hills/TalbotHill Operational
Area SummerDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
E‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Ho
u
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l
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M
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l
t
i
p
l
i
e
r
Hour
Rolling Hills/Talbot Hill Operational Area
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.6612:00 p.m. - 1:00 p.m.1.29
1:00 a.m. - 2:00 a.m.0.481:00 p.m. - 2:00 p.m.1.15
2:00 a.m. - 3:00 a.m.0.392:00 p.m. - 3:00 p.m.1.18
3:00 a.m. - 4:00 a.m.0.383:00 p.m. - 4:00 p.m.1.17
4:00 a.m. - 5:00 a.m.0.464:00 p.m. - 5:00 p.m.1.22
5:00 a.m. - 6:00 a.m.0.715:00 p.m. - 6:00 p.m.1.32
6:00 a.m. - 7:00 a.m.0.946:00 p.m. - 7:00 p.m.1.27
7:00 a.m. - 8:00 a.m.0.987:00 p.m. - 8:00 p.m.1.29
8:00 a.m. - 9:00 a.m.1.148:00 p.m. - 9:00 p.m.1.24
9:00 a.m. - 10:00 a.m.1.169:00 p.m. - 10:00 p.m.1.11
10:00 a.m. - 11:00 a.m.1.2810:00 p.m. - 11:00 p.m.1.03
11:00 a.m. - 12:00 p.m.1.34 11:00 p.m. - 12:00 a.m.0.83
Figure E-2
Rolling Hills/TalbotHill Operational
Area WinterDiurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
E‐2
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
Ho
u
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l
y
M
u
l
t
i
p
l
i
e
r
Hour
Renton System-Wide
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.9912:00 p.m. - 1:00 p.m.0.85
1:00 a.m. - 2:00 a.m.1.001:00 p.m. - 2:00 p.m.0.80
2:00 a.m. - 3:00 a.m.1.042:00 p.m. - 3:00 p.m.0.80
3:00 a.m. - 4:00 a.m.1.123:00 p.m. - 4:00 p.m.0.74
4:00 a.m. - 5:00 a.m.1.094:00 p.m. - 5:00 p.m.0.81
5:00 a.m. - 6:00 a.m.1.095:00 p.m. - 6:00 p.m.0.90
6:00 a.m. - 7:00 a.m.1.056:00 p.m. - 7:00 p.m.0.96
7:00 a.m. - 8:00 a.m.0.967:00 p.m. - 8:00 p.m.1.12
8:00 a.m. - 9:00 a.m.1.068:00 p.m. - 9:00 p.m.1.34
9:00 a.m. - 10:00 a.m.1.059:00 p.m. - 10:00 p.m.1.22
10:00 a.m. - 11:00 a.m.0.9810:00 p.m. - 11:00 p.m.1.08
11:00 a.m. - 12:00 p.m.0.9411:00 p.m. - 12:00 a.m.1.01
Figure F-1
Renton System-Wide
Summer Diurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 7/19/2009 to 8/1/2009.
F‐1
Hourly Hourly
Ti Mltili Ti Mltili
Hourly Demand Pattern*
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
Ho
u
r
l
y
M
u
l
t
i
p
l
i
e
r
Hour
Renton System-Wide
Time Multiplier Time Multiplier
12:00 a.m. - 1:00 a.m.0.6012:00 p.m. - 1:00 p.m.1.47
1:00 a.m. - 2:00 a.m.0.421:00 p.m. - 2:00 p.m.1.40
2:00 a.m. - 3:00 a.m.0.412:00 p.m. - 3:00 p.m.1.23
3:00 a.m. - 4:00 a.m.0.423:00 p.m. - 4:00 p.m.1.10
4:00 a.m. - 5:00 a.m.0.404:00 p.m. - 5:00 p.m.1.11
5:00 a.m. - 6:00 a.m.0.655:00 p.m. - 6:00 p.m.1.08
6:00 a.m. - 7:00 a.m.1.056:00 p.m. - 7:00 p.m.1.13
7:00 a.m. - 8:00 a.m.1.157:00 p.m. - 8:00 p.m.1.14
8:00 a.m. - 9:00 a.m.1.238:00 p.m. - 9:00 p.m.1.08
9:00 a.m. - 10:00 a.m.1.319:00 p.m. - 10:00 p.m.1.02
10:00 a.m. - 11:00 a.m.1.4010:00 p.m. - 11:00 p.m.0.95
11:00 a.m. - 12:00 p.m.1.4611:00 p.m. - 12:00 a.m.0.80
Figure F-2
Renton System-Wide
Winter Diurnal Pattern
Water System Plan Update* Note:Diurnal Patterns are based on SCADA
* data from 1/18/2009 to 1/31/2009.
F‐2
Appendix L
WELLHEAD PROTECTION PLAN
Executive Summary 2012-revised.doc\
Wellhead protection is a means by which a community can actively and efficiently protect
its drinking water resources. Wellhead protection is preventative in nature, rather than
reactive and aims at preventing contaminants from entering the area of land around
water supply wells. The wellhead protection area includes: “the surface or subsurface
area surrounding a water well or wellfield supplying a public water system, through which
contaminants are reasonably likely to move toward and reach such well or wellfield" (US
EPA. 1987).
The City of Renton aquifer protection efforts began as a recommendation in its 1983
Water System Plan. A Well Field Monitoring Study delineating Aquifer Protection Areas/
capture zones (APA) was completed by CH2M Hill in 1988.
The capture zones were updated for the 2006 Water System Plan using the Renton
Groundwater Model (Modflow) in conjunction with the PATH3D particle tracking program
for the downtown and Maplewood wells. Capture zones for well 5a were delineated with
the fixed radius method, and capture zones for Springbrook Springs were delineated
based on groundwater flow patterns and overlying surface water catchment. A overview
of modeling methods utilized are presented here and a more in depth discussion of all these
modeling efforts are presented in Appendix Q of the February 2006 Renton Water System Plan.
The updated capture zones, Figures 2‐, 5, 6, 7, will become the new Aquifer Protection
Area zones.
Potential contaminant sources within wellhead protection area.
The inventory of potential contamination sources within the WHPA is being updated as
part of Monitoring Wells Prioritization & Repair, 2011 contract. This study will conduct a
risk assessment on the downtown aquifer, prioritize monitoring wells based on existing
and potential contaminant source risk assessment, as well as repair and secure monitoring
wells. This study will be attached to this chapter as an update upon its completion.
Businesses in the redefined capture zones will be notified. The APA zones 1, 2 and 1a will
also be redefined. The requirements of the Aquifer Protection Area found in the Renton
Municipal Code (see Table 1‐1) will be applied to businesses that meet the zone‐defined
criteria. Public aquifer awareness activities will continue through outreach to schools,
festivals, employee training and yard care workshops.
Compliance with State Wellhead Protection Requirements
EXECUTIVE SUMMARY
Executive Summary 2012-revised.doc\
The City complies with Wellhead Protection requirements for Group A Public Water Systems
contained in Chapter 246‐290‐135(3) WAC and administered by the Washington Department of
Health. Compliance is documented in chapters 3, 4, and 5 of this report and section 5.7. These
chapters address delineation of capture zones, identification of potential sources of
contamination, notification of owners and regulators of potential contamination sources, and
verification that the City could continue to supply customers in the event of loss due to
contamination of its primary source of water. Section 5.7 addresses coordination with emergency
responders.
1-1
1.1 Wellhead Protection Requirements
The purpose of this report is to document compliance with Wellhead Protection
requirements for Group A Public Water Systems contained in Chapter 246‐290‐135(3) WAC
and administered by the Washington Department of Health (DOH). A wellhead protection
area is defined by DOH as the surface and subsurface around a well or well field
contaminants are likely to pass through to reach a drinking water source. The goal of the
Wellhead Protection Plan is to prevent the contamination of groundwater sources through
planning and the management of existing and potential contaminant sources.
The key components of a wellhead protection program are:
Delineation (or definition) of wellhead protection areas.
Inventory of potential contaminant sources within wellhead protection area.
Management of wellhead protection areas to prevent contamination.
1.2 Implementation of Renton’s Wellhead Protection
Compliance with these requirements is part of a broader Renton city effort referred to as
the “Aquifer Protection Program”. This report describes how the City complies with the
DOH requirements in the context of this broader program.
The City of Renton began its efforts to protect its ground water supplies with a
recommendation for an Aquifer Protection Program in its 1983 Water System Plan. An
overturned tanker truck carrying diesel fuel near city wells motivated the City to undertake
a Well Field Protection Study and acquire Maplewood Golf Course as a location for an
alternate supply.
By 1986, the City had established a network of groundwater monitoring wells and
petitioned and was granted by the EPA Sole Source Aquifer status and protection. This
designation helps to protect the aquifer by making sure that “no commitment for federal
financial assistance (through a grant, contract, loan guarantee, or otherwise) may be
entered into for any project which the Administrator determines may contaminate such
aquifer through a recharge zone so as to create a significant hazard to public health, but a
commitment for federal assistance may, if authorized under another provision of law, be
entered into a plan or design the project to assure that it will not so contaminate the
aquifer.”
Designation of the Aquifer Protection Area ( combined “1‐year Capture Zone”, “5‐year
Capture Zone”, and “10‐year Capture Zone” areas within the City limits) by the Renton City
1. INTRODUCTION
1-2
Council came in 1988. Shortly thereafter, an aquifer awareness program was initiated with
a Centennial Clean Water Fund Grant. An Aquifer Protection Ordinance passed by the City
Council in 1992, placed restrictions on the storage and handling of hazardous materials in
the Aquifer Protection Area. The Aquifer Awareness Program continues today and Renton
has been designated as a Groundwater Guardian Community by the Groundwater
Foundation.
The 2012 plan begins the task to align the 1, 5, and 10‐year capture zones that were
developed for the 2006 Water System Plan with the Aquifer Protection Area. The new
capture zones were delineated using the Renton Groundwater Model (Modflow) in
conjunction with the PATH3D particle tracking program for the downtown and Maplewood
wells. Capture zones for well 5a were delineated with the fixed radius method, and
capture zones for Springbrook Springs were delineated based on groundwater flow
patterns and overlying surface water catchment. The updated capture zones can be seen
in Figures 2‐3, 5, 6, 7. The businesses in these zones will be notified that they are in the
Aquifer Protection Area. The City’s Aquifer Protection Ordinance will be applied to these
new areas as well as any overlap with old APA zones.
The Water Utility samples a network of monitoring wells to provide an early warning of
contaminants present in production well capture zones. This enables the City to optimize
use of production wells to avoid drawing contamination, if present in the aquifer, into the
drinking water distribution system. The monitoring plan is currently being reviewed and
updated to evaluate contamination sources and prioritize risks as well as rejuvenation of
the wells.
1-5
ADD ANY UPDATES
Table 1‐1: Chronology of the Development of Renton’s Aquifer Protection Program
1983 to 2010
ACTION OR EVENT YEAR
Water System Plan recommends Aquifer Protection Program 1983
Tanker truck carrying diesel fuel overturns on I‐405 and spills its contents 1983
City Council authorizes Well Field Protection Study 1983
Well Field Protection Study completed by CH2M Hill and recommendations adopted by City Council 1984
Maplewood Golf Course acquired for use as future well field to provide back up for downtown aquifer 1985
Development of Maplewood supply 1986 ‐ 1999
Well Field Monitoring Study completed by CH2M Hill; Includes installation of monitoring wells, provides ground
water quality and flow information for the downtown aquifer, estimates interaction with the Cedar River, and
delineates the Aquifer Protection Area; Initiates ongoing early‐detection water quality and water level monitoring
program
1986 ‐ 1988
Initiation of ground water quality monitoring using a network of monitoring wells 1986 (ongoing)
Olympic Pipe Line Company petroleum spill in Maple Valley; City monitors progress of cleanup to ensure no
contamination of downtown wells. 1986 ‐ 1993
Sole Source Aquifer Petition prepared by CH2M Hill and submitted to EPA (approved in 1988). 1986
Aquifer pumping test recommends aquifer management techniques that can be used in the event of a spill to
prevent contamination of production wells. 1987
Texaco service station gasoline spill detected in monitoring well; City works with owners to ensure adequate
cleanup and compensation for City expenses. 1987 ‐ 1988
Tetrachloroethylene contamination detected in a monitoring well possibly from dry cleaner; Requested owner
change waste disposal practices; Monitoring and operational changes to ensure that plume does not enter
production wells; Concentrations decline over time.
1988 (ongoing)
Underground storage tank secondary containment ordinance adopted by City Council prior to state preemption of
local ordinances; Ordinance requires replacement with double wall tanks of all single‐wall tanks in one‐year
capture zone for downtown wells within 18 months.
1988
Designation of Aquifer Protection Area by City Council (Zone 1 is one‐year capture zone and Zone 2 is greater than
one year, up to City limits) 1988
Installation of additional monitoring wells 1988
Replacement of leaking sewers in vicinity of Downtown Wellfield 1988 ‐ 1996
Development of two‐dimensional computer model of aquifer 1989
Aquifer awareness program initiated with Centennial Clean Water Fund matching grant awarded by Washington
Department of Ecology/Water Quality Financial Assistance Program 1989 (ongoing)
The Monitoring Well Installation Project undertaken with Centennial Clean Water Fund matching grant awarded
by Washington Department of Ecology/Water Quality Financial Assistance Program (consulting team of RH2
Engineering and Pacific Groundwater Group); Early warning monitoring well network expanded and additional
water quality and ground water flow data obtained
1990 ‐ 1993
Development of three‐dimensional computer model of downtown and Maplewood aquifers by Pacific
Groundwater Group 1991 ‐ 1994
Lining of leaking storm sewers in immediate vicinity of downtown wellfield 1991
Development of Water Quality Database by Economic and Engineering Services; Later enhanced to include water
levels and to relate to City Geographical Information System. 1992 (ongoing)
Coordinate with King County on aquifer protection in the unincorporated area via Cedar Basin and Nonpoint
Action Plan 1992 (ongoing)
Adoption of Aquifer Protection Ordinance by Renton City Council places restrictions on storage and handling of
hazardous chemicals in the Aquifer Protection Area among other protections; Annual facility inspection program
begins
1992 (ongoing)
1-6
ACTION OR EVENT YEAR
Amended water meter rates for the purpose of funding staff to further implement Aquifer Protection Program 1992
Heating Oil Tank Study (SCS Engineers) estimates risk of contamination and identifies relative risk associated with
various neighborhoods in Aquifer Protection Area 1994
Maplewood Treatment Plant construction completed 1995
Groundwater Guardian Team formed; Renton designated as Ground Water Guardian Community by Ground
Water Foundation. Ongoing annual designation. 1996 (ongoing)
Compliance with Wellhead Protection Requirements implemented by the Washington Department of Health;
Includes susceptibility assessment, delineation of 1, 5, and 10‐year capture zones for wells and spring,
identification of potential sources of contamination, notification of owners and agencies, coordination with
emergency responders, and contingency plan to supply customers in the event of loss of downtown aquifer due to
contamination.
1997 (ongoing)
Tetrachloroethane (PCE) is detected in well PW‐8 during routine sampling. PCE is later detected in wells, RW‐1,
RW‐2 & RW‐3, and PW‐9 as well as in groundwater monitoring wells MW‐18, MW‐19, MW‐20, MW‐24, MW‐31S,
MW‐40 and MW‐42. The contamination is traced to wastewater ponds and waste soil mixing areas located on the
Stoneway property next to Cedar River Park. July and August 1998, Stoneway removes waste concrete slurry from
four ponds found to contain PCE contamination. In addition Stoneway removes waste soil stored on site in the
waste soil mixing area which was also found to be contaminated with PCE. Sampling revels the levels of PCE
contamination begin to drop in City wells.
1997
Aquifer Protection Regulations amended 1998
Aquifer Protection Regulations amended 2000
Employee Training for Aquifer Protection booklet developed 2001
500‐gallon limit on total quantity of hazardous materials allowed at one facility in Zone 1 went into effect. Two
facilities, each with about 40,000 gallons of hazardous materials, either close or remove all but 500 gallons 2002
Aquifer Protection Regulations amended 2002
Olympic Pipeline Risk Assessment and Leak Detection Feasibility Study completed ; Identifies potential methods to
improve leak detection 2004
Stoneway moves their concrete batch plant and begins cleanup of the property located next to Cedar River Park 2008
Alignment of Aquifer Protection Area with capture zones delineated by Renton Groundwater Model 2011
Letter of compliance from Olympic Pipe Line Company (OPLC) which outlines their compliance with Renton
Ordinance #4572 (Pipeline Franchise Agreement) for the years 2009 & 2010. Also submitted the latest version of
their Spill Response Plan (dated April 2009).
2011
Study to determine connection to Cedar
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The City of Renton draws its water from four distinct sources. These are described below and their
locations are shown on Figure 2‐1.
2.1 Cedar Valley Aquifer
The primary source of the Renton municipal water supply is the Cedar Valley Aquifer, designated a
Sole Source by the EPA in 1988. The aquifer boundaries correspond to the areal extent of the
post‐Vashon alluvium of the lower Cedar River Valley. Aquifer materials occur almost continuously
between Renton and Cedar Falls (Figure 2‐2).
This shallow aquifer is physically susceptible to contamination since there is no confining layer
between the land surface and the water table to retard the downward migration of hazardous
chemical spills or other releases of contaminants. In the downtown Renton area especially, it is
also vulnerable to degradation due to the presence of numerous potential sources of
contamination. In the vicinity of the wellfield constructed in downtown Renton, the aquifer
consists of coarse‐grained sediments deposited at the mouth of the prehistoric Cedar River during
the last glacial period. The water table is approximately 23 feet from the surface and the aquifer
has an average thickness of 70 feet.
Soils overlying the aquifer are silt, sand, and gravel while the aquifer itself is comprised of coarser,
very permeable sandy gravel. Aquifer transmissivity is estimated to range from about 1 to 2.3
million gallons/day‐foot (gpd/ft). Assuming transmissivity of 1.3 million gpd/ft, hydraulic
conductivity is on the order of 2,500 ft/day. Recharge is local, both from direct precipitation and
subflow. The Department of Health contamination susceptibility rating of wells located in the
Cedar Valley Aquifer is “moderate to high”.
The City operates six production wells in the Cedar Valley Aquifer. Wells RW1, RW2, and RW3 each
have a pumping capacity of 2,200 gpm and are screened at depths ranging from 50 to 105 feet.
Well EW3 may be used in an emergency, its capacity is 1600 gpm and it is screened from 40 to 70
feet below ground surface. Wells PW8 and PW9 have pumping capacities of 3,500 and 1,200 gpm,
respectively. The wells are screened at depths ranging from 50 to 105 feet.
2.1.1 Cedar Valley Aquifer WHPA Delineation
The Renton Groundwater Model was developed to simulate the groundwater flow system in the
Renton vicinity in three dimensions. The model was constructed using Modflow, the US Geological
Survey finite difference computer code (McDonald & Harbaugh, 1988). The model simulates areal
recharge, concentrated recharge along the edges of uplands, groundwater interactions with the
Cedar River and Lake Washington, springflow along the North Uplands (including Maplewood
Creek baseflow), pumping withdrawals, and subflow across model boundaries.
Capture zones were delineated using the Renton Groundwater Model in conjunction with the
PATH3D particle tracking program. Figure 2‐3 shows the areal extent of the 1‐, 5‐, and 10‐year
capture zones associated with pumping the downtown wellfield. In extent, they are largely
2. PROTECTION AREA DELINEATIONS by SOURCE
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limited to the lowland surficial aquifers (deltaic and Cedar Valley alluvial aquifers). The 1‐year
capture zone occurs exclusively in the lowland aquifers, whereas portions of the 5‐ and 10‐year
capture zones extend beneath the southwest corner of the North Uplands.
In addition, a portion of the 10‐year capture zone in the deltaic aquifer extends beyond the model
boundary. Near the southwest corner of the model domain (near the old Black River channel) the
5‐year capture zone approaches the model boundary and the 10‐year capture zone occurs outside
of the model domain. Where the 10‐year capture zone lies outside of the model domain, the 5‐
year travel time was used to extend the boundary. Extension of the 10‐year capture zone also
considered geologic constraints (bedrock occurrence) in the old Black River channel to estimate
groundwater flow directions. The 10‐year capture zone outside the model domain is dashed to
indicate the uncertainty associated with this poorly characterized area outside of the model
domain.
Capture zones delineated for groundwater flow beneath the North Uplands are representative of
average groundwater velocities in these areas. A nose‐shaped projection of the 5‐ and 10‐year
capture zones delineated along the western edge of the North Uplands is dashed to convey
uncertainty. This boundary is based on indirect evidence suggesting concentrated groundwater
flow in this vicinity.
2.2 Springbrook Springs
About fifteen percent of the City’s current water supply comes from Springbrook Springs located at
the extreme southern city limits. A water‐bearing sand and gravel layer enclosed in a thick
sequence of glacial till intercepts the surface on the hillside at Springbrook Springs. Two
infiltration galleries collect and channel from 300 to 500 gpm into the transmission pipeline.
The Springs have not been extensively studied. The recharge area has been estimated by
combining the surface area draining to the Springs with the estimated groundwater recharge area.
The latter is based on well driller reports for wells in the vicinity of the Springs. The Department of
Health contamination susceptibility rating of the Springs is “moderate to high”, although the
delayed response of discharge to seasonal precipitation suggests that, due to overlying till, the
Springs may be of low susceptibility.
2.2.1 Springbrook Springs WHPA Delineation
Springbrook Springs emits from undifferentiated Vashon glacial sediments (Hart Crowser, 1975).
The springs are located on the west side of the Renton South uplands (Figure 2‐4), at an elevation
of approximately 200 feet above mean sea level (NAV 1929). The dashed green line on Figure 2‐5
showing the delineated surface water area that contributes to the springs, was based on
topography. The groundwater area of contribution was delineated by calculations based on
hydrogeologic mapping.
Figure 2‐5 also shows the recommended WHPA travel time zones. The 1‐year travel time zone
includes those portions of the overall area of contribution within 3,100 feet of the spring, plus the
entire surface water catchment. The 5‐year time of travel zone occupies areas between the 1‐year
travel time zone and a distance of 9,200 feet from the spring. The 10‐year time of travel WHPA
was identified as areas extending beyond the 5‐ year zone which likely contribute groundwater to
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the springs. The 10‐year zone was extended upgradient to a groundwater divide identified by the
USGS (1995) near Lake Youngs.
2.3 The Maplewood Production Aquifer
The Maplewood production aquifer is located east of the downtown area under the Maplewood
Golf Course. It serves as a redundant source of supply for the vulnerable downtown aquifer.
The Maplewood aquifer is believed to extend northward into hydrostratigraphically‐correlated
zones beneath the North Uplands. It ranges from 70 to 120 feet thick and is encountered from
approximately 135 to 345 feet below the golf course.
The Maplewood aquifer is confined with evidence of some leakage. Gradients are predominantly
upward. Estimated transmissivities range from 49,000 to 76,000 gpd/ft with corresponding
hydraulic conductivity ranging from 94 to 128 ft/day. Recharge is believed to occur predominantly
from the North Uplands while discharge occurs in the Cedar Valley via upward flow to the alluvial
aquifer east of the bedrock narrows shown on Figure 2‐2. Other recharge and discharge points
may exist. The Department of Health contamination susceptibility rating of the Maplewood
aquifer is “low”.
Production wells completed in the Maplewood aquifer,PW11, 12, and 17, have pumping capacities
of 2,500, 1,500, and 1,500 gpm, respectively. These wells are screened at depths ranging from 284
to 344 feet below ground.
2.3.1 Maplewood WHPA Delineation
Capture zones for the Maplewood wellfield were delineated using the same Renton Groundwater
Model in conjunction with the PATH3D particle tracking program that was also used to delineate
the Cedar Valley Aquifer WHPA. The capture are shown on Figure 2‐6. The 1‐year capture zone is
largely limited to the Cedar River Valley, whereas the 5‐ and 10‐year capture zones extend beneath
the North and South Uplands.
The southeast portions of the 5‐ and 10‐year capture zones extend beyond the model boundary.
Hydrogeologic conditions in this area have not been well defined, and simplifying assumptions
were required to approximate the capture zones outside of the model domain.
Capture zones delineated for groundwater flow beneath the North Uplands are representative of
average groundwater velocities in these areas. Because modeled aquifer properties for the
sediment‐filled bedrock valley beneath the South Uplands are unknown, reasonable estimated
values were employed. In a similar fashion to the North Uplands, assumptions of uniformity within
model layers provide model estimates of average groundwater velocities in these South Uplands
sediments.
2.4 Well 5A
Well 5A is located near the northern city limits east of Lake Washington. This well has a pumping
capacity of 1500 gpm and is completed in a sand and gravel aquifer zone approximately 280 to 390
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feet below ground (about ‐42 to ‐152 feet mean sea level). The aquifer zone is overlain by
stratified glacial deposits of fine to coarse sand and gravel layered with silt and clay.
The recharge area for Well 5A is not known but there are some indications that the well may be
withdrawing from the Maplewood production aquifer which is believed to extend northeasterly
from the Maplewood area. The Department of Health contamination susceptibility rating of Well
5A is “low”.
2.3.1 Well 5A WHPA Delineation
Because little hydrogeologic characterization has been performed in the Well 5a area and
groundwater flow patterns have not been characterized, the calculated fixed radius (CFR) method
was used to delineate the time travel boundaries (Figure 2‐7). Well pumping rate, estimated
porosity of the aquifer, and open or screened interval of the well used for the CFR were assumed
to be same as t he Maplewood aquifer.
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FIGURE 2‐1. Water Supply Sources
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FIGURE 2‐2. Aquifers in the Model Domain
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Figure 2‐3 Downtown Wellfield Capture Zones
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Figure 2‐4 Model Domain
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Figure 2‐5. Springbrook Springs Capture Zone.
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Figure 2‐6. Maplewood Wellfield Capture Zones
2-11
Figure 2‐7 Well 5A Capture Zones
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An essential element of the wellhead protection is an inventory of all potential groundwater
contaminant sources in and around delineated wellhead protection areas. The purpose of the
inventory is to identify past, present and proposed activities that may pose a threat to the aquifer.
This section presents an inventory and assessment of risks to the City of Renton’s groundwater
sources. The potential contaminant source inventory and assessment were conducted using
techniques consistent with current Department of Health guidance documents.
3.1 COMPILATION OF POINT SOURCE INFORMATION
Potential point sources of groundwater contamination located within the 10‐year capture zones of
the City of Renton water supply wells were identified using the following sources of information:
Department of Ecology Confirmed and Suspected Contaminated Sites Report
This list contains information about sites that are undergoing cleanup and sites that are awaiting
investigation and/or cleanup.
Department of Ecology Underground Storage Tanks and Leaking Underground Storage Tanks ‐
Lists and Information
Washington State currently regulates active tanks including gas stations, industries, commercial
properties, and governmental entities. While the UST data file contains information on both
operational and closed USTs, we report only the active tanks.
Department of Ecology Hazardous Waste Generators Database
Ecology provided us with a listing of hazardous waste generators regulated under the federal and
state regulations.
City of Renton Aquifer Protection Area Facilities Database
The City of Renton has identified businesses and other entities within the Aquifer Protection Area
that store more than 20 gallons of hazardous material. These sites are referred to as “facilities
storing hazardous materials” in this report.
3.2 POINT SOURCES OF CONTAMINATION
Point sources include USTs, LUSTs, Facilities Storing Hazardous Materials, Confirmed and
Suspected Contaminated Sites, Resource Conservation and Recovery Act (RCRA) sites, solid waste
facilities and cemeteries.
3. CONTAMINANT SOURCE INVENTORY, RISK ASSESSMENT AND
NOTIFICATION OF OWNERS AND AGENCIES
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Table 3‐1 presents a list of Facilities Storing Hazardous Materials that are located within the City of
Renton capture zones.
3.2.1 Facilities Storing Hazardous Materials
The Water Utility regulates facilities located in the Aquifer Protection Area that handle and store
hazardous materials. The purpose of this program is to ensure that hazardous materials are
handled in a manner that prevents their release to the environment where they may contaminate
the aquifer.
3.2.2 Underground Storage Tanks
USTs identified for this project are those regulated by Ecology. The Department of Ecology
regulates USTs in accordance with WAC 173‐360. Tanks excluded from this list are: home heating
oil tanks, tanks closed before 1990, tanks smaller than 100 gallons, process system tanks,
wastewater tanks, vaults, lagoons, sumps, natural gas tanks, home or farm (noncommercial) motor
fuel tanks, septic tanks, and tanks inside buildings. USTs in the Ecology database include new, old,
closed, and operational USTs, typically located at gas stations, maintenance facilities, the airport,
and truck fleet facilities. The purpose of the UST management program is to reduce groundwater
contamination, which has been historically common from this source category. The regulation
required tank upgrades, leak detection devices, and liability insurance as of December 1998.
USTs typically contain hydrocarbon fuels and waste oils that may contaminate groundwater. If
leaked, the fuels may either migrate as a separate phase or dissolved in groundwater. It is unlikely
that free petroleum product would enter a well. Fuel constituents most likely to dissolve out of
fuel into water at concentrations problematic for drinking water are light aromatic hydrocarbons
(benzene, toluene, xylene, and ethylbenzene) and total petroleum hydrocarbons (TPH). The
aromatic constituents comprise typically less than 30% of the total fuel mass. These components,
when they are dissolved in groundwater, have the following subsurface migration characteristics:
They move in the same direction as groundwater
They move marginally slower than groundwater
They are consumed over time by microbes in the ground (they biodegrade)
3.2.3 Leaking Underground Storage Tanks
LUSTs are USTs with reported releases of petroleum fuels to the ground under WAC 173‐360
(Underground Storage Tank Regulations). Sites with large releases of petroleum fuel but no UST
may also be included. The UST section above describes the character of petroleum fuel migration
and risks in the subsurface.
Ecology relies heavily on voluntary “Independent Remedial Actions” for LUST remediation.
Independent remedial actions are designed to allow owners of contaminated properties to quickly
and economically remediate sites. They are therefore commonly performed by owners of LUSTs
using written Ecology guidance, but with little Ecology input during the cleanup process.
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Independent remedial action reports are required to be submitted to Ecology after completion of
work.
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3.2.4 Home Heating Oil Tanks
The City of Renton conducted a Home Heating Oil Tank Study and concluded that home heating oil
tanks constitute a risk to the water supply (SCS Engineers, 1994). The total number and
distribution of tanks were estimated using information based upon the King County Assessor’s
parcel database indicating home heating type. Tanks in this database likely include those currently
in use as well as those that are unused. Figure 3‐1 presents heating oil tank density in the City of
Renton. The risk posed by home heating oil tanks is migration of petroleum fuel constituents to
wells with moving groundwater, as discussed under the UST category.
Areas with the highest tank density are in the one‐year, five‐year, and ten‐year capture zones of
the Downtown wells and in the five‐year and ten‐year capture zones of well 5A. Most of the tanks
in the APA are 30 to 44 years old. Compared to gasoline and diesel, heating oil contains relatively
low concentrations of the toxic and mobile petroleum fuel components described above under
USTs, which may account for the fact that the City has not experienced a documented
contamination of wells due to heating oil tanks. However, the large number of heating oil tanks
and their ages contributed to the identification of risk by the City in the 1994 study.
3.2.5 Confirmed and Suspected Contaminated Sites
The purpose of the Washington State Toxics Cleanup Program is to clean up sites with
contaminated soil or water in accordance with the Model Toxics Control Act (WAC 173‐330) and an
extensive body of related guidance. Sites on the Confirmed and Suspected Contaminated Sites List
are those with non‐petroleum contaminants, or sites with petroleum and non‐petroleum
contaminants, in soil or water. LUSTs and other sites are not included if only petroleum chemicals
are present, unless the contamination volume is unusually large. The risk posed by these sites is
migration of contaminants to wells (or other receptors). Because contamination at these sites has
been identified and registered with Ecology, migration is usually monitored and damage to wells
can be averted. Nonetheless, these sites, along with LUSTs, represent the locations of registered
releases of hazardous chemicals to the ground in the well capture zones.
3.2.6 Hazardous Waste Generators
Federal and state rules promulgated under the authority of the Resource Conservation and
Recovery Act (RCRA) regulate facilities generating, transporting, treating, storing, and disposing of
hazardous wastes or extremely hazardous wastes. The rules establish a system to track hazardous
wastes from generation to disposal. Hazardous wastes are those wastes defined in WAC 173‐303
(Dangerous Waste Regulations) as threats to human health or the environment. The risk posed by
hazardous waste generators is the illegal disposal or spillage of waste within the well capture
zones.
Ecology’s Hazardous Waste and Toxics Reduction Program perform management and permitting of
these sites. The Local Hazardous Waste Management Program in King County implements a
program to ensure that hazardous waste from small quantity generators does not end up in
sanitary sewers and landfills. King County and the cities in King County jointly implement this
program. A small quantity generator is a facility generating less than 220 pounds of hazardous
waste, or 2.2 pounds of extremely hazardous waste, per month. Table 3‐1 lists large and medium
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quantity hazardous waste generators but does not list small generators unless they are otherwise
included in the list under other criteria.
3.2.7 Solid Waste Facilities
Two landfills, Mt. Olivet and Renton Highlands, are within the City of Renton. Both are just outside
of the ten‐year capture zone of the downtown wells.
The Mt. Olivet landfill operated from approximately 1977 to 1990. The landfill was permitted to
only accept construction, demolition, and land clearing waste. There is no documentation showing
that any other waste was accepted.
Leachate is not sampled regularly. Sampling in 1996 by Public Health Seattle/King County detected
zinc, chromium, petroleum, and thalates in the leachate, all well below concentrations allowed in
drinking water.
Sampling for groundwater impacts by the landfill has been ongoing since 1990 first by Golder
Associates, then Pacific Groundwater Group, and finally the Water Utility since 1995.
Contaminants of concern have not been detected in concentrations that clearly indicate
contamination by the landfill or that would not meet drinking water standards. Pacific
Groundwater has determined that groundwater flow in the shallow aquifer beneath Mt. Olivet
Landfill flows to the north/northwest away from City production wells. It is also likely that the
shallow aquifer daylights along the step hillside of the North Upland and would be carried by
surface water flows. Given these observations, the landfill does not presently appear to be a
significant threat to City wells.
The Renton Highlands Landfill is described by the King County Abandoned Landfill Study (Seattle‐
King County Department of Health, 1985) as a sand and gravel pit converted to a burning
dump/landfill, which operated from the 1940’s to the 1960’s. The study states that ash from
burned domestic waste generated by an adjacent housing development was disposed in the
landfill. No records were found indicating that hazardous waste had been disposed there.
An investigation of this landfill was conducted in 2000 during development review for a new self‐
storage facility. Brick, glass, asphalt, wood debris, concrete and ceramic materials were found in
soil borings to fifteen feet deep. Ecology determined that one area that was contaminated with
petroleum did not require remediation. Otherwise, the pit was filled with clean earth materials.
Contaminants were not detected in groundwater.
3.2.8 Cemeteries
There are no cemeteries within the Renton capture zones. Cemeteries are considered by the USGS
to be a possible source of groundwater contamination. Formaldehyde, methanol, arsenic, and
mercury may have been used in past or present embalming practices. Field studies have shown
that dissolved organic carbon, sulfate, chloride, and various nitrogen species may also be
associated with cemeteries in concentrations above background (USGS Merit Proposal).
Non‐point sources include pipelines, storm water infiltration basins, sewers and septic tanks, and
transportation sources.
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3.2.9 Petroleum Product Pipelines
Two Olympic Pipeline Company (OPL) pipelines run through the City of Renton Aquifer Protection
Area Zone 2. The lines transport refined gasoline (60%), diesel (25%), and turbine fuel (15%) from
Ferndale‐Cherry Point and Anacortes refineries to Seattle, Renton, Sea‐Tac, and Portland. Pacific
Groundwater Group has produced a separate report, the Draft Olympic Pipeline Leak Detection
Feasibility Study (1997), which gives a detailed analysis of the potential for pipeline leakage. The
OPL pipelines are shown on Figures 3‐1 and 3‐2.
Forty fuel leaks occurred over the entire length of the OPL between 1966 and 1996 Of those 40
leaks, 19 would not be detectable by current, routine monitoring practices. The leaks not
detectable by routine practices were mostly those reported by third parties (typically a backhoe
operator). Only nine of the leaks occurred on main pipe sections (locations other than facilities or
appurtenances). The estimated return period for any OPL leak within Renton City limits is more
than 100 years, and for an OPL leak that is NOT associated with a facility or appurtenance, the
estimated return period is many hundreds of years. A return period is the average rate of
occurrence of an event over a large number of occurrences. These return periods are typical of
relatively large, modern, petroleum fuel pipelines elsewhere in the nation.
Field experience, and simulations performed with PGG’s Renton groundwater model, indicates that
the likelihood of OPL contaminating the City’s downtown wells is very small, even in the event of a
release. Field experience is based on a 1986 leak in which an estimated 80,000 gallons leaked from
the OPL in the Maplewood neighborhood and contaminated the alluvial aquifer and the Cedar
River. Under the extreme pumping conditions assumed in the MODFLOW modeling analysis, the
alluvial (uppermost) aquifer capture zone of Maplewood wells PW‐11 and PW‐17 extends near to,
and possibly includes, the OPL. The capture zone in the alluvial aquifer is important, because the
OPL has discharged contaminants to this aquifer.
3.2.10 Storm Water
Several governmental agencies in Western Washington have recognized the potential for
groundwater contamination from storm water. King County's Surface Water Design Manual (King
County 1994) requires impervious liners for wetponds, water quality swales, and other water
quality treatment facilities located over rapidly draining soils. Washington Department of
Ecology's Storm Water Management Manual for the Puget Sound Basin requires storm water
treatment prior to infiltration to protect groundwater quality (Ecology, 1992). The City of Renton's
storm water regulations prohibit storm water infiltration within Zone 1 of the City’s APA. These
regulations also require that water quality facilities and conveyance to such facilities be lined to
preclude infiltration if soils are highly permeable.
The literature regarding the capacity of storm water infiltration to contaminate groundwater is not
consistent. However, it is likely that the capacity is variable and dependent on constituent
attributes such as mobility, abundance, and soluble fraction (EPA, 1994); and site attributes such as
soil type and depth to groundwater. Constituents likely to pose a threat include mobile organic
compounds, pathogens such as bacteria and viruses, and metals with a high soluble fraction such
as zinc and nickel. Other studies indicate that pesticides and petroleum hydrocarbons are a
concern (Adolfson, 1996).
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3.2.11 Sewers and Septic Tanks
Wastewater disposal systems pose a risk from both naturally occurring organic wastes and toxic
chemicals. Discharge of organic wastes occurs wherever septic systems are used. Organic wastes
include naturally occurring chemicals such as nitrate that can degrade water quality when
discharged in sufficient quantities. Discharge of toxic chemicals into septic tanks is most commonly
a problem in commercial or industrial settings with on‐site septic systems. A smaller risk exists
from septic tank cleaners and other cleaners that could be discharged by homeowners.
It is highly unlikely that there are any septic systems within the ten‐year capture zone for the
downtown wells. They are prohibited in the one‐year capture zone for downtown wells and are
allowed elsewhere infrequently if City sewers cannot be provided to a building lot. There are
septic systems in the unincorporated areas of King County that are primarily in the capture zones
for deeper wells for which septic tanks present a relatively low risk.
Sewers pose less of a risk since the wastewater is conveyed to a treatment plant. However, sewers
can cause contamination if wastewater leaks out of fractured pipes or improperly sealed joints.
This contaminant pathway, commonly referred to as exfiltration, may have resulted in
groundwater contamination from the dry cleaning facility just west of the downtown wells in 1988.
Aquifer protection regulations now require that wastewater collection pipes meet pipeline
specifications that prevent leakage of sewage into the aquifer. Older wastewater conveyance that
was subject to leakage in the vicinity of the downtown wells has been replaced in recent years with
pipe that meets current specifications. Figure 3‐2 shows the location of major sewer lines in the
City of Renton.
3.2.12 Transportation of Hazardous Materials
Trucks carrying hazardous materials travel through the Renton capture zones daily. Highways in
the area include Interstate 405 and the Maple Valley Highway. These highways pass through the
one‐year, five‐year, and ten‐year capture zones of the Downtown wells, Maplewood wells, and
Well 5A.
A little‐used Burlington Northern rail line crosses the downtown wellfield and extends up Lake
Washington. The rail lines pass through the one‐year, five‐year, and ten‐year capture zones of the
downtown and Maplewood wells; and through the five‐year and ten‐year capture zones of well 5A.
The locations of railways in the City of Renton are shown in Figure 3‐2.
Transportation of hazardous materials poses a risk to groundwater as a result of accidents and the
resulting release of contaminants to the ground. Travel speeds, traffic density, volumes and nature
of hazardous materials, conditions of roads and tracks, spill containment measures, and driver
training are variables defining the degree of risk. Statistics maintained by the WSDOT for 2003
(70% reported) state that:
8.3 percent of reported accidents statewide involve large trucks (compared to 5 percent in
1996, our last report);
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Within the segments of SR 169 and I 405 for which we requested data, nearly 20 percent of
accidents involved large trucks.
The percent of reported accidents statewide involving large trucks in which hazardous
materials were transported was near zero; and
The percent of reported accidents statewide involving large trucks in which hazardous
materials were released was zero (compared to less than one percent in 1996).
These statistics suggest that large truck accidents are on the increase statewide but that there are
significantly more accidents involving large trucks in the vicinity of City wells than elsewhere,
perhaps due to the nature of local commerce. The statistics also indicate that the risk of hazardous
material spills from truck accidents is very low. There could be reporting errors and other
confounding factors in this data. Improvements in packaging and transport of hazardous materials
could also be a factor.
We were unable to obtain data on the percentage of large trucks transporting hazardous materials.
However, it seems unlikely that no accidents involving large trucks carrying hazardous materials
would have occurred. It also seems unlikely that no hazardous materials would be released given
the impacts to fuel tanks during an accident. So while data suggest a low risk, they aren’t
conclusive.
The rail line adjacent to the downtown wells receives limited use by freight and a recreational
“dinner” train. It is unlikely that hazardous materials are transported on this line. Its primary use
is to transport airplane parts from Boeing’s Auburn plant to its Renton plant. While a derailment
can rupture a fuel tank, our experience locally has been that such spills are readily cleaned up since
they are of limited size. However, a derailment very near to our downtown wellfield could cause
sudden and severe short‐term water supply disruption. The City has contingencies to deal with
such an event. Please refer to Chapter 5 for further discussion.
3.3 SOURCE RISK ASSESSMENT
An assessment was performed to facilitate the prioritization of future risk mitigation efforts. Sites
and non‐point sources posing relatively high risks to city wells are identified in Table 3‐2. The data
used to create this Table have not been updated in 2004 because the basis of the table is
qualitative in nature and the types of contaminant sources and contaminants have remained fairly
constant. The one significant exception is that risk has been reduced within the one‐year capture
zone for downtown wells since the requirement to reduce hazardous materials in Zone 1 to 500
gallons came due in October 2002. One gas station left the area and Stoneway Concrete built a
new plant outside of the capture zones for City wells leaving less than 500 gallons at their site
within Zone 1. The risk ranking method considered the following variables:
Release likelihood
Volume of contaminant
Mobility/persistence/likely concentration relative to MCL
Proximity to well
Number of sites
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Values of 1, 5, or 10 were assigned to the release, volume, and mobility variables. The values were
assigned as follows:
A release likelihood of 10 was assigned to Confirmed and Suspected Contaminated Sites, and
the transportation category. USTs, LUSTs, heating oil tanks and Facilities Storing Hazardous
Materials were assigned a risk value of 5, although, LUSTs may pose less risk than USTs
because LUSTs have been identified and are managed by Ecology. Other sites were given a
release risk value of 1.
A volume factor of 10 was assigned to large contaminant volume sites such as pipelines,
stormwater, Confirmed and Suspected Contaminated Sites, sewers and solid waste facilities.
USTs, transportation and Facilities Storing Hazardous Materials were assigned a factor of 5 and
small volume sites such as heating oil tanks and RCRA generators were assigned a factor of 1.
A mobility/persistence factor of 10 was assigned to site categories likely storing chlorinated
solvents. Those sites include Confirmed and Suspected Contaminated Sites and RCRA
generators. Site categories likely storing gasoline (USTs, LUSTs, pipelines, transportation),
Facilities Storing Hazardous Materials, sanitary sewers and septic systems, and sites with
unknown chemicals were assigned a factor of 5. Other facilities releasing only inorganic
contaminants or non‐gasoline fuels were assigned a factor of 1.
Either the actual number of sites in the database or the size of a potential non‐point source
release area was used to quantify the number of sites within each capture zone.
For a given travel time capture zone, risk was assigned by multiplying the number of sites by
release, volume, and mobility factors, and then dividing by the capture zone travel time in years
(1‐, 5‐, or 10‐years). Capture zones were used to represent distance, and are the denominators in
the risk equation because risk is inversely proportional to distance. No consideration was given to
relative distance within a travel time capture zone.
Relative risks were assigned as Relatively High, Medium, or Relatively Low based on the result of
the risk calculation. Despite the quantitative approach, the results of the risk analysis should be
considered qualitative because of the considerable uncertainty inherent in any ranking of this
nature. Further error was induced because the capture zones depicted are the furthest extent from
which groundwater could travel in a given time and enter the well regardless of depth. Therefore,
although contamination generally originates at the surface, the capture zone depicted may be in a
deeper aquifer, which is vertically separated from the source of contamination. Based on this
neglected factor alone, sources near the downtown wells pose a greater threat than similar
sources near the Maplewood wells.
3.3.1 Downtown Wells
The downtown wells are subject to the highest risk of groundwater contamination due to the
density of population and industry in their capture zones. Table 3‐2 indicates that the contaminant
sources designated “Relatively High” are in the downtown capture zones. The sources posing
relatively high risk are Confirmed and Suspected Contaminated Sites, USTs, LUSTs, heating oil
tanks, Facilities Storing Hazardous Materials, and transportation. Most of the 61 USTs and LUSTs
within the 1‐year and 5‐year capture zones are associated with automotive businesses and likely
contaminants are petroleum hydrocarbons and possibility solvents. There are four Confirmed and
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Suspected Contaminated Sites within the five‐year capture zone of the downtown wells. Two are
automotive related sites and the one is the Renton School District warehouse. Transportation of
hazardous materials poses a high relative risk to the one‐year capture zone of the downtown wells.
The high risk is due to the short (4 year) return period.
Four incidences of contamination have occurred within the capture zone of the Downtown wells:
the Texaco leak of 1988, the PCE detection of 1988, and the Stoneway incident of 1997. Each is
described below.
3.3.1.1 Texaco, 1988
In 1988, Well 3 was used only as a standby well and has not been used since the contamination
incident. Well 3 is located at the northeast tip of Liberty Park, across the street from a Texaco
service station. Routine sampling and verification sampling in early January 1988 detected
concentrations of dissolved hydrocarbons in Well 3. The City installed a network of monitoring
wells around Well 3 and around the Texaco station to assess the source of the contamination. The
highest observed concentrations of benzene, toluene, and xylene were 100 parts per billion (ppb),
110 ppb, and 120 ppb respectively.
Texaco located the source of the leak in a splice in the gasoline dispensing system liner. Remedial
measures and repairs ultimately undertaken included:
Nine monitoring wells were installed
Two recovery wells were installed and pumped to sewer
Well 3 was pumped to Cedar River
Soil vent wells were installed
Standby motor for Well 3 was purchased
Liner was reinstalled in the line area and spliced by factory trained representative
Liner trenches were regraded to direct leaks to the sump.
Leak detection system was substantially improved
3.3.1.2 PCE Detection, 1988
During sampling related to the Texaco incident of 1988, PCE was detected in downtown monitoring
wells. The following two paragraphs summarize the occurrence of the PCE in the downtown well
field in two discrete periods:
PCE was detected in six City of Renton monitoring wells (MW‐6, MW‐18, MW‐19, MW‐21, MW‐22,
and MW‐24 in the downtown aquifer in the spring of 1988. The contaminated wells are northwest
of wells RW‐1,2,3.
By 1990, PCE concentrations had declined to below detection limits effective at that time (0.5 ppb)
after a dry cleaning facility stopped discharging PCE contaminated water to a sanitary sewer near
the contaminated wells, and after the sewer was lined. Based on these data it was concluded that
the likely source of PCE in the downtown wellfield in 1988 was the dry cleaner. Dry cleaners are
typically listed as RCRA generators in the database downloaded for this project because they
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generate waste solvent; however, they may also be small quantity generators that would not occur
on the Ecology database. Dry cleaners are also Facilities Storing Hazardous Materials.
From 1990 to 1997, continued monitoring indicated that PCE concentrations were barely
detectable in six monitoring wells (MW‐6, MW‐19, MW‐20, MW‐21, MW‐22, MW‐24) with the new
lower detection limit of 0.2 ppb. Only wells MW‐6 and MW‐20 had concentrations above 0.5 ppb.
3.3.1.3 PCE Detection, 1997
In June 1997, PCE was detected in PW‐8 at 0.55 ppb after an extensive period of time with wells
RW‐1, 2, 3 as lead wells. This indicated a new source or changed PCE condition in the aquifer. The
City switched to PW‐8 as the lead well to protect wells RW‐1, 2,3. By August 1997, PCE
concentration in PW‐8 rose to 3.6 ppb and the City switched back to a RW‐1, 2, 3 lead. In
September 1997, PW‐8 and MW‐18 reached unprecedented PCE concentrations of 4.4 and 5.6
ppb, respectively, and PCE was detected at MW‐31S (near Stoneway Concrete – southeast of the
production wells) for the first time. Therefore, PW‐8 began pumping to waste continuously and
wells RW‐1, 2, 3 were placed on first‐call to supply the City drinking water. The objective was to
use PW‐8 to protect wells RW‐1, 2, 3 while RW‐1, 2, 3 supplied the City water. Also, this pumping
arrangement was planned to create a steady‐state flow field that would enhance the likelihood of
locating the new PCE source.
Pacific Groundwater Group conducted a study to assess the source of the PCE in the spring of
1998. Further information is contained in a report titled Stoneway Tetrachloroethene (PCE)
Assessment, Renton, Washington, 1988. The study included use of the MODFLOW groundwater
flow model and sampling of groundwater, soil, sewer, and concrete waste. The study concluded
that the PCE detected in PW‐8 in 1997 probably entered the ground on the Stoneway Concrete
property. The model estimated a groundwater travel time on the order of 1 month between the
suspected source areas and PW‐8.
Results of the sampling indicated that a source of mixed chlorinated hydrocarbons, non‐
chlorinated hydrocarbons, and inorganic contaminants exists within the concrete wastewater
ponds and an area where waste soils are mixed with waste concrete from the ponds. The organic
chemicals detected include those found in fuels, solvents, paints, and other liquid organic
products. The inorganic chemicals are probably directly associated with cement manufacturing.
Near the source area, the groundwater plume contains both organic and inorganic contaminants.
The organic, non‐chlorinated contaminants like those in fuels (toluene, xylene, and naphthalene)
generally move more slowly and degrade more rapidly than the chlorinated contaminants like PCE.
Acetone and the ketones move fairly rapidly but they also degrade rapidly. Therefore, these
compounds are not detected downgradient. PCE is the contaminant of greatest concern because it
is relatively mobile, persistent, and it is migrating at a concentration that is high relative to the
drinking water maximum concentration level, or MCL of 5 ppb.
The report included recommendations to protect the City’s source of groundwater including
source removal, identification of best management practices, groundwater monitoring, and
groundwater remediation. Stoneway implemented several actions to reduce the likelihood of
further releases, including cessation of soil/concrete mixing on site. However, more extensive
evaluations, and possible extensive re‐engineering of wastewater management facilities may be
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required to resolve Ecology Notice of Violation No. DE 98WQ‐N272 dated January 22, 1999. This
violation cites State Water Quality Standards and Sand and Gravel General Permit WAG 50‐3301,
which prohibit all groundwater and surface water discharges. In addition, the City has determined
that the land use at Stoneway Concrete is incompatible with the Aquifer Protection Area. In
summary, tetrachloroethene contamination at the source and in groundwater appear to be
abating; however, inorganic contaminants continue to degrade groundwater quality very near City
drinking water wells and this contamination requires abatement.
Stoneway Concrete is presently regulated by the City as an APA facility. However, it is also listed as
an UST and RCRA site in the Ecology database downloaded for this project. It is believed that the
UST and RCRA designations are no longer accurate.
3.3.1.4 Sewer Line Damage 2002
In December 2002, a geotechnical consultant hired by the City of Renton Transportation Division to
do soils investigation for the widening of Maple Valley Highway augered a 6‐inch hole through King
County’s 42‐inch Cedar River Trunk sewer line in Cedar River Park near Well 9 based upon an
incorrect locate. Well 9 had not been in use for some time at the time of the incident. It was
initially thought that hole extended only through the top of the pipe. One day later it was
determined that the hole extended through the bottom of the pipe allowing wastewater to be
discharged to the subsurface. King County immediately installed a temporary plug to seal the hole
in the pipe. A permanent repair was completed within approximately ten days.
The County’s drilling contractor installed a temporary monitoring well within a few feet of the
break. The County took samples from this well several times over the subsequent week and
detected low levels of sewage‐related contamination on several occasions. Wastewater was not
released to the surface of the ground or to any adjacent surface water body.
The Water Utility contracted with our geohydrology consultants, Pacific Groundwater Group
(PGG), to assess the potential risk of contamination to the City drinking water supply. Using our
computerized model of groundwater flow, PGG estimated the probable direction of flow and time
of travel of potential contaminants in relation to operating wells. Conservative estimates indicated
that it would take a number of months before contaminants could reach the City’s wells. This
would give us time to investigate the release and implement contingencies, if needed.
On December 20, PGG conducted an investigation of groundwater quality in the immediate vicinity
of the break by using geo‐probes to collect groundwater samples. Sewage‐related contamination
was not detected. It was concluded that the likelihood of health threats at water supply wells was
very low and it was expected that the City would be able to operate wells using normal
procedures.
As an extra precaution, the Water Utility sampled emergency supply well EW3 on February 4,
2003, to confirm earlier results. The Utility continued to sample wells according to Washington
Department of Health requirements and did not detect sewage contamination.
3.3.2 Maplewood, Springbrook, and Well 5A
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USTs, heating oil tanks, Facilities Storing Hazardous Materials, pipelines, septic/sewer and
transportation pose medium risk to the Maplewood wells. There are six registered USTs and LUSTs
within the Maplewood 1‐year and 5‐year capture zones and two Confirmed and Suspected
Contaminated Sites within the 5‐year and 10‐year capture zones.
Only sewers/septic rank as medium risks to Springbrook Springs. There is only one point source
site (an UST) within the 1‐year and 5‐year capture zones of Springbrook Springs.
Sewers/septic systems and transportation pose medium risk to Well 5A. In addition, there is one
UST within the 1‐year capture zone. In the 5‐year capture zone, there are three USTs (all gas
stations) and five Facilities Storing Hazardous Material.
3.4 NOTIFICATION OF OWNERS AND AGENCIES
Department of Health (DOH) regulations require that the City notify owners and operators whose
property or operations may pose a risk of groundwater contamination, that they are located in the
capture zones identified in Chapter 2 (Figures 2‐3, 2‐5 2‐6 and 2‐17). The city is also required to
notify regulatory agencies and local governments of the boundaries of the capture zones.
The Water Utility notified the owners and operators of the sites listed in Table 3‐1 of their location
in the capture zones shown. The letter of notification is included in this report as Exhibit 3‐1.
The Water Utility sent a letter, map of capture zones, and copy of Table 3‐1 to agencies that have
authority over potential sources of contamination. The mailing list is included in this report as
Exhibit 3‐2 and the letter is included as Exhibit 3‐3. Adjacent local governments will receive a copy
of the Water System Plan including the Wellhead Protection Plan.
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Figure 3‐1. Residential Heating and Oil Tank Densities in Capture Zones.
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Figure 3‐2 Locations of Sewers and Railroads in Capture Zones.
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Table 3‐2. Sites and Non‐Point Sources Posing Relatively High Risks To City Wells
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Exhibit 4‐1 Letter of Notification to Business Owners and Operators
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Exhibit 4‐2. Agencies Notified of Capture Zones and Potential Sources of Contamination.
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Exhibit 3‐3. Letter of Notification to Agencies and Local Governements.
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The Contingency Plan’s purpose is to provide “for the location and provisions of alternate
drinking water supplies for each public water system in the event of well or well field
contamination” (WAC 246‐290‐100). The Washington Department of Health (DOH)
Wellhead Protection Guidance Document, June 2010, identifies six key elements to be
included in the Plan to ensure that Renton’s “water system, and local officials are
prepared to respond to emergency situations and able to provide alternative sources of
drinking water.”
Contingency Plan Elements:
Identify maximum water system capacity in relation to source, distribution system,
and water rights restrictions. Assume loss of largest groundwater source.
Evaluate the water system’s expansion options within current water rights and
availability.
Identify existing or potential interties with other public water systems and evaluate
the ability to deliver water if the largest groundwater source is lost, including costs
associated with the purchase or delivery of alternate supplies.
Evaluate current procedures and make recommendations on contingency plans for
emergency events.
Identify future potential sources of drinking water, and describe quality assurances
and control methods to be applied to ensure protection of water quality prior to
utilization as a drinking water supply.
Maintain a current list of appropriate emergency phone numbers
4.1. Maximum Water System Capacity.
Renton's supply is derived from five water sources: the Cedar Valley Aquifer, Springbrook
Springs, the Maplewood Aquifer, the recharge area for Well 5A and SPU supply interties.
For the City's primary supply, it maintains and operates six wells within the Cedar Valley
Aquifer and three wells within the Maplewood Aquifer. It also has Springbrook Springs, a
single artesian spring, and Well 5A, which is the only well that the City operates within
that particular recharge area.
The largest source would be the Downtown Aquifer, which consists of wells RW1, RW2,
RW3, PW8, and PW9. The capacities of the downtown aquifer wells are presented in
Table 5.1. Well EW3 is an emergency backup which would also be rendered useless as it is
also in the downtown aquifer. The contamination or disruption of this source would result
4. CONTINGENCY PLAN FOR LOSS OF THE DOWNTOWN AQUIFER
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in a loss of 11,300 gpm (16.28 MGD). The City’s wells not in the downtown aquifer are
presented in Table 4‐2, their total capacity is 6,300 gpm (8.7MGD).
Table 4‐1. City wells used for primary supply
that are located in the downtown aquifer
Source Capacity
(gpm)
Capacity
(MGD)
RW1 2,200 3.17
RW2 2,200 3.17
RW3 2,200 3.17
PW8 3,500 5.04
PW9 1,200 1.73
(EW3)* 1,500 (1.44)*
Total
capacity to
be replaced
11,300 16.28
*Emergency use only, when RW‐1, RW‐2, RW‐3, PW‐8 or
PW‐9 is out of service.
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Table 4‐2. City wells/springs to be used for
emergency supply that are not located in the
downtown aquifer
Source Capacity
(gpm)
Capacity
(MGD)
PW11 2,500 3.60
PW12** 1,500 2.16**
PW17** 1,500 2.16**
PW5A 1,250 1.44
Springbrook
Springs
1,050 1.51
Total
capacity
6,300 8.7
**Either PW‐12 or PW‐17, not both
4.2. Expansion Options
The City has 13 water right certificates and 5 permits. A thorough discussion of the City’s
water rights is presented in Chapter 6, Water Supply, Water Rights, and Water Quality. A
summary of the City’s existing water rights for municipal supply is presented in Table 6‐1.
The total instantaneous flow rate from the certificated rights is 15,152 gpm. The annual
rights equal 14,809 acre feet per year, was set by DOE and is less than the sum of the
City’s annual rights shown on its certificates.
Currently the Maplewood wells are used as alternate sources only but the City may try
perfecting water rights certificates for these wells. For the current planning period, the
City’s forecasted water rights are the same as its existing water rights.
4.3 Interties
The capacity available from alternate City wells plus emergency interties with adjacent
suppliers is 19,495 gpm (26.15 MGD). Given average high‐day demand of 14.14 MGD
(Chapter 3), this capacity would be adequate to supply the City’s customers.
Implementation of the Water Shortage Response Plan would help reduce demand and
further ensure the City’s capability to supply customers on a long‐term basis.
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The City maintains emergency funds in the capital account of the Water Utility to help
defray the costs of loss of a wellfield. In addition, the City has invested in improvements
to transmission, pumping, and storage to accommodate production of water from the
alternate wellfields in the event of an emergency.
Table 4‐3. Emergency sources available via intertie with other suppliers*
Source Capacity (gpm) Capacity (MGD)
Tiffany Park BPS (SWD #39) 1,050 1.51
Fred Nelson BPS (SWD #34) 925 1.33
Boeing Customer Service
Training Center Fire PRV
(SWD #24)
2,800 2.88
PRV #28 (SWD #33) 700 1.01
PRV #35 (SWD #38) 700 1.01
PRV #6 (SWD #37) 320 0.46
SWD #36 700 1.01
PRV #23 (Tukwila) 1,250 1.44
PRV #25 (Kent) 1,950 2.80
Dimmitt Booster Pump
Station
2,800 4.00
Total capacity 13,195 17.45
4.4 Evaluation and Recommendations
The City has both a Water System Shortage Response Plan and a Water System Emergency
Response Plan. These documents address both long and short term water needs. The City
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also has developed a Disaster Recovery Plan to establish policies, guidelines and
procedures to quickly recover from the impacts of disasters. In brief, short and long term
loss will be addressed:
A. Short Term Loss of the Downtown Wellfield
Upon loss of the downtown wellfield due to contamination, the City will:
1. Immediately switch production to City wells not located in the contaminated
aquifer;
2. Implement the Water Shortage Response Plan;
3. Activate emergency sources;
4. Run the groundwater model to aid in tracking and identifying the
contamination plume; and
5. Increase monitoring in affected production and monitoring wells.
B. Long Term Loss of the Downtown Wellfield
If it appears that the wellfield will be unavailable for a long period of time, the City will:
1. Continue the use of alternate wellfields and emergency sources;
2. Modify the Utility’s Capital Improvement Plan to improve distribution system
zone‐to‐zone flow from alternate wells and emergency sources;
3. Assess the feasibility of treatment for the contaminated wellfield;
4. Utilize longer‐term supply from Seattle;
5. Assess aquifer storage and recovery options;
6. Assess the feasibility of increasing storage for use during peak demand.
4.5 Future Potential Sources
The City has a 50‐year partial requirements water supply contract with Seattle Public
Utilities (SPU). Under this contract SPU will provide the city with sufficient source to meet
long term needs. It is not likely that current water rights can be increased or expanded in
the near future.
4.6 Emergency Contacts and Phone Numbers
Calling 911 elicits response to hazardous materials spills in the well capture zones, as well
as the entire City by the City of Renton Fire Department HAZMAT Unit. The Fire
Department will respond as necessary and will notify the Water Utility if a release has
occurred in the Aquifer Protection Area.
The City of Renton Office of Emergency Management has developed a Comprehensive
Emergency Management Plan to prepare for a disaster in the community. This plan
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provides a framework on how government will prepare, respond, and recover from an
emergency. Some of the hazards the City of Renton is vulnerable to include; earthquakes,
fires, flooding, wind, snow, ice storms, hazardous materials releases, dam failure,
landslides, and volcanic eruptions. The King County Local Emergency Planning Committee
of King County (LEPC) would coordinate response to a major disaster such as a severe
earthquake.
The Water Utility’s role is to provide information to Fire Department staff about drinking
water wells and the aquifer, to respond to selected spills that are of particular concern,
and to follow up to ensure that long term remediation, where necessary, is adequate to
protect drinking water.
PHONE NUMBERS
Local Hazardous spill or other water emergency: Fire – 911
King County: King County has regulatory oversight for small public water systems (Group
Bs) serving 2‐9 connections – Washington State Department of Health regulates larger
(Group A) systems such as Renton.
State Department of Health: For drinking water emergencies 1‐877‐481‐4901 ‐ Office of
Drinking Water Hotline available 24/7 ‐ the Washington Department of Health
Federal EPA: For chemical or oil spills 1‐800‐424‐8802 – National Response Center; the
Washington State Department of Health Department of Drinking Water, is the point of
first contact and they in turn, communicate with Federal agencies as needed.
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5.1 Introduction
The Renton Water System Plan recommended an aquifer protection program in 1983. In the same
year a tanker truck carrying diesel fuel overturned on I‐405 near the downtown wells and spilled its
contents. While this incident did not result in contamination of the aquifer or wells, it did motivate
the City to begin a serious effort to identity risks to the Cedar Valley Aquifer and measures to
protect the aquifer. The Wellfield Protection Study completed in 1984 characterized the
hydrogeology of the aquifer, identified potential sources of contamination, and recommended a
program to protect the aquifer. The City has implemented recommendations from the study in
addition to other elements of a risk management program. The City, assisted by citizens and with
outstanding cooperation by the business community, continues to develop and implement a
comprehensive aquifer protection program. The Water Utility leads the program but nearly every
other City department has some role, major or minor, in protecting the aquifer.
Table 5‐1 is a chronology of key actions and events in the development of the Renton Aquifer
Protection Program. Major components of the program are briefly described below.
5.2 Aquifer Protection Area
Aquifer protection regulations are in effect and other aspects of the program are emphasized in
the Aquifer Protection Area (APA), which is comprised of the 1,5 and 10 –year capture zones. The
APA was adopted by the City Council in 1988 and revised in 2002.
Table 5‐2. Renton Municipal Code Chapters Relevant to Aquifer Protection
Citation Section Title
1‐3 Remedies and Penalties
4‐1 Administration and Enforcement
4‐3‐50 Critical Areas Regulations (A,B,C, D and H)
4‐4‐030C7 Construction Activity Standards
4‐4‐060L4 Fill Material
4‐5‐120 Underground Storage Tank Secondary Containment Regulations
4‐6‐030E2,3 Drainage (Surface Water) Standards
4‐6‐040J Sanitary Sewer Standards
4‐8‐120 Submittal Requirements
4‐9‐015 Aquifer Protection Area Permits
4‐11 Definitions
5‐5‐5 Requirements for Business License Applications in an Aquifer Protection
Area
8‐5‐22 Wastewater Requirements that Apply within Zones 1 and 2
5. AQUIFER PROTECTION PROGRAM
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Currently, the APA includes three zones as follows:
Zone 1: This zone encompasses the 1‐year capture zone for the downtown wells.
Regulations adopted for this zone provide the strongest protection for the area that is very
close to the most important and vulnerable wells.
Zone 1 Modified: This zone encompasses the 1‐year capture zones for the Maplewood
Wellfield and Springbrook Springs, both of which are partially outside of the City limits.
Regulations are somewhat less strict than those in Zone 1 and are intended to provide
appropriate protection for important wells/springs that are deep and/or partially
protected by intervening layers of relatively impermeable earth materials.
Zone 2: Regulations for this zone provide a level of protection adequate for areas that are
further away from the most important sources but still within the capture zone or for deep
backup wells. Zone 2 encompasses:
o The portion of the capture zone for downtown wells that lies between the 1‐year
capture zone boundary and the City limits;
o The portion of the capture zone for Well 5A that lies within City limits; and
o The portion of the capture zone for Springbrook Springs that lies between the 1‐
year capture zone boundary and the 10‐year boundary.
The City’s regulatory authority is limited to jurisdictional boundaries but it works with other
jurisdictions to protect portions of capture zones that lie outside of City boundaries. Designating
zones for areas outside of the city limits provides the following benefits:
Areas falling within wellfield or springs capture zones are automatically included in
protected areas upon annexation; and
The City has a stronger position from which to negotiate protection with neighboring land
use jurisdictions.
Overall, the current APA does not coincide with the boundaries of the 1, 5, and 10‐year capture
zones delineated for this report and shown on Figure 2‐1. Delineation of the new capture zones is
documented in Chapter 2 of this report and 2006 WSP Appendix Q . Application of the APA
regulations will be transferred to the updated zones.
5.3 Compliance with State Wellhead Protection Requirements
The City complies with Wellhead Protection requirements for Group A Public Water Systems
contained in Chapter 246‐290‐135(3) WAC and administered by the Washington Department of
Health. Compliance is documented in chapters 2, 3, and 4 of this report and section 5.7. These
chapters address delineation of capture zones, identification of potential sources of
contamination, notification of owners and regulators of potential contamination sources, and
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verification that the City could continue to supply customers in the event of loss due to
contamination of its primary source of water. Section 5.7 addresses coordination with emergency
responders.
5.4 Sole Source Aquifer Designation
The Water Utility petitioned the Environmental Protection Agency (EPA) in 1986 for Sole Source
Aquifer designation of the Cedar Valley Aquifer. This designation, which was granted in 1988,
protects an aquifer from potential contamination or depletion which could be caused by by
development that is partially funded by the federal government. The EPA reviews projects
partially funded by the federal government to determine if the aquifer might be negatively
affected. Appropriate mitigations may be required or a particularly damaging project could be
halted altogether. Additional benefits of Sole Source designation include increased public
awareness of the value of the water supply and increased attention by state and local agencies
that regulate potential sources of contamination.
Sole Source designation was instrumental in the Water Utility’s successful negotiation with the
Washington State Department of Transportation (WSDOT) to provide protection of the aquifer
during construction of the S‐Curve realignment of I‐405 in the early 1990’s. The WSDOT agreed to
implement on‐site best management practices and fund monitoring of construction practices by a
third party. The agreement also included design changes that would direct hazardous materials
and runoff to lined detention ponds adjacent to the freeway. These ponds prevent infiltration and
hold spilled hazardous materials long enough to allow removal. This protects the production wells
next to the freeway and the Cedar River, which passes underneath. The ponds have contained
significant diesel spills at least twice since their construction in 1993.
5.5 Aquifer Awareness Program
The Water Utility has implemented a public education program since 1989. This program
emphasizes awareness of the physical characteristics of the aquifer and individual behaviors that
protect it.
This program includes aquifer model demonstrations at school science fair nights, an educational
booth at the Renton’s River Days festival, and a conservation web page. Each year our Consumer
Confidence Report contains educational information to help customers where their water comes
from and how they can help protect the aquifer. Renton has been designated a Groundwater
Guardian Community by the National Groundwater Foundation for 16 years.
The Renton Solid Waste Utility also offers educational programs that, among other goals, promote
aquifer protection. Their focus is on recycling and waste reduction, including minimizing the use of
products that are toxic and considered hazardous waste when disposed. Solid Waste has created a
demonstration garden in which pesticides are not used and teaches popular Green Gardening
classes.
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5.6 Aquifer Protection Regulations
Aquifer protection regulations are in effect in the Aquifer Protection Area (APA). The Renton City
Council adopted these regulations in September 1992 after much community input and debate.
The regulations have been substantially amended two times, once in 1998 and again in 2002. This
section describes the most important features of the regulations. Table 5‐1 summarizes location
of relevant Renton Municipal City code.
Table 5‐1. Renton Municipal Code Chapters Relevant to Aquifer Protection
RMC
Citation Chapter Title
1‐3 Remedies and Penalties
4‐1 Administration and Enforcement
4‐3‐050 Critical Areas Regulations
4‐4‐030C7 Construction Activity Standards
4‐4‐060L4 Fill Material
4‐5‐120 Underground Storage Tank Secondary Containment
Regulations
4‐6‐030E2 Drainage (surface Water) Standards
4‐8‐120 Submittal Requirements
4‐9‐015 Aquifer Protection Area Permits
4‐9‐250 Variances, Waivers, Modifications and Alternates
4‐11 Definitions
5‐5‐5 Requirements for Business License Applications in an APA
8‐5‐22 Wastewater Requirements that apply within Zones 1 and 2.
5.6.1 Hazardous material restrictions
Limited in Zone 1:
Hazardous materials limited to:
o 500 gallons (5000 pounds) at new and existing facilities;
o Containers no larger than 5 gallons (at new facilities); and
o No more than 150 gallons to be opened and handled on the premises (new
facilities).
Banned in Zone 1:
Tetrachloroethylene (dry‐cleaning fluid)
Zone 1 Modified: Hazardous materials limits and ban the same as Zone 1 except that the 500
gallon limit is in effect only for new facilities.
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The City prohibits the use, storage, or handling of more than 500 gallons of hazardous materials at
facilities, usually businesses, within Zone 1 of the Aquifer Protection Area. All facilities were
required to be in compliance within ten years of the effective date of the ordinance. In addition
tetrachloroethylene, commonly used for dry cleaning, was banned.
As a result of the above, three businesses either closed or relocated: a drycleaner, a gas station,
and a concrete batch plant/truck fueling and maintenance facility. Very early on, the City offered
limited financial compensation for relocation or closure. Only the dry cleaning facility closed
within the time frame that funding was available.
The definition of a hazardous material is consistent with the Uniform Fire Code and the
Occupational Safety and Health Administration, and consists of a classification system that assigns
a chemical to a hazard category based upon it’s properties. Hazardous materials include physical
hazards (e.g. explosives, compressed gases, flammable and combustible liquids, oxidizers, and
organic peroxides) and health hazards (e.g. toxic substances, corrosives, carcinogens, and irritants).
While the hazardous material definition includes an unnecessarily broad array of substances to be
regulated for aquifer protection purposes, the City wanted to collect just one inventory of
hazardous materials from facilities for purposes of both the Fire Prevention Bureau and the Water
Utility. In practice, the materials that are found at regulated facilities are usually those that the
Water Utility would be concerned about, e.g. petroleum products, solvents, paints, pesticides. In
calculating a total for purposes of determining whether the threshold is surpassed, the Utility
exempts those substances that do not present a risk.
5.6.2 Land Use Restrictions in the Aquifer Protection Area
In addition to the above limits on hazardous materials in Zone 1 of the APA, the City has adopted
regulations prohibiting some land uses. The Water Utility coordinates with land use planners,
building permit reviewers, and staff responsible for issuing business licenses to ensure that the
prohibited uses are not inadvertently allowed. The following summary of land use restrictions is
provided:
Prohibited in Zone 1 and Zone 1 Modified:
New underground storage tanks containing hazardous materials (one small existing
underground tank remains and is slated for removal)
New heating systems using fuel oil except commercial using existing above‐ground waste‐
oil tanks (one existing commercial using underground fuel storage remains)
Prohibited in Zone 2: New heating systems using fuel oil stored in underground storage tanks
Prohibited in Zone 1, Zone 1 Modified, and Zone 2:
New on‐site sewage disposal systems (Existing in Zone 1 required to connect; New allowed
in Zone 1 Modified and Zone 2 if sanitary sewer unavailable)
New solid waste landfills and transfer stations
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Hazardous waste treatment, storage, and disposal facilities or recycling facilities
New petroleum product pipelines
In addition to specific uses that are not allowed, the Water Utility has broad authority to review
any proposed use in the APA and assess whether aquifer water quality is likely to be impacted.
Such uses may be denied.
5.6.3 Exemptions
The following uses, categories of hazardous materials, and types of facilities are exempt from most
regulations:
Government emergency preparedness and response
Hazardous materials of no risk to the aquifer
Retail sale of small containers (5 gallons or less)
Residential use
Fuel and equipment tanks
City water treatment processes
Multi‐family dwellings, hotels, nursing homes
Facilities with 20 gallons or less on premises
5.6.4 Regulation of Facilities Handling and Storing Hazardous Materials
The Water Utility regulates facilities located in the APA that handle and store hazardous materials.
The purpose of this program is to ensure that hazardous materials are handled in a manner that
prevents their release to the environment where they may contaminate the aquifer. Regulations
are the same in Zones 1, 1 Modified, and 2 with minor exceptions.
An annual Operating Permit is required to operate a business or other facility located in the APA if
more than twenty (20) gallons of liquid hazardous materials are stored, handled, treated, used, or
produced on site. The corresponding threshold for solids is two hundred (200) pounds. Facilities
required to obtain a permit include but are not limited to businesses, public facilities, schools,
hospitals, and parks. There is no fee for an Operating Permit, which is obtained after an annual
inspection confirms compliance. Operating permits can be suspended or revoked for non‐
compliance.
The approximately 70 facilities that are subject to Operating Permit requirements have complied
and obtained their permits. No permits have been suspended or revoked to date. Most owners
see the importance of protecting the aquifer and seem to value their role in protecting a precious
natural community resource. Water Utility staff takes a flexible, educational approach in
implementing this program. Referrals to the Local Hazardous Waste Management Program in King
County are often made for purposes of bringing greater expertise to bear on questions that the
business owner may have, for gaining financial assistance in purchasing secondary containment or
in identifying and disposing of hazardous waste, and for gaining recognition from the Envirostars
Program for those facilities that do an outstanding job.
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Owners are also encouraged to cooperate with and avail themselves of the knowledge offered by
the City Fire Prevention Inspector. Requirements of the Fire Code, if implemented, partially meet
requirements of the Aquifer Protection Code.
Aquifer protection requirements are consistent with best management practices to protect the
environment and the health and safety of workers. Therefore, we find that many facility owners
are already implementing many aquifer protection requirements before we contact them about
the requirement to obtain an Operating Permit.
Aquifer protection requirements include:
1. Annual Operating Permit application
2. Annual Hazardous Materials Inventory Statement
3. Secondary containment of hazardous materials
4. Monitoring of hazardous material storage areas
5. Spill response capability
6. Spill reporting
7. Legal hazardous waste disposal and record keeping
8. Employee training
9. Complying with pesticide reporting requirements and fertilizer application limits/reporting
requirements
10. Obtaining and complying with requirements of a Closure Permit when closing the facility
11. Zone 1 only: Facilities that were in existence when the regulations were adopted may be
required by the City, according to specific criteria, to monitor groundwater, pave sites subject to
contamination, and improve stormwater management.
5.6.5 Contaminated Sites
The Water Utility keeps abreast of progress on cleanup of contaminated sites listed on the
Department of Ecology’s Confirmed and Suspected Contaminated Sites List and Leaking
Underground Storage Tank List. The Utility coordinates with Ecology on cleanup of those sites that
are of greatest concern to the City. Ecology has been very helpful in placing a priority on such
sites.
The City generally relies on the state program for ensuring cleanup of contaminated sites. To
augment the state program, the City has adopted regulations prohibiting unauthorized release of
hazardous materials. Regulations also require that the person responsible or the owner of the
property on which the release has occurred report such releases to the Water Utility. Regulated
facilities (those located in the APA that require an Operating Permit) are required to provide
detailed information to the Utility regarding releases, including the cause and methods to prevent
future releases. Cleanup progress reports must be provided until the site meets Model Toxics
Control Act standards and, according to best available evidence, does not put the City drinking
water supply at risk of failing to meet state standards.
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5.6.6 Construction Activity Standards
The City has adopted construction activity standards, effective only in the APA, that are designed
to protect the aquifer. These apply if construction vehicles will be refueled on site and/or the
quantity of hazardous materials that will be used or stored on the construction site, exclusive of
the quantity of hazardous materials contained in fuel or fluid reservoirs of construction vehicles,
will exceed twenty gallons. The Development Services Division implements these standards with
the assistance of the Water Utility.
A description of refueling activities that will occur on the site and an inventory of hazardous
materials expected to be present is submitted to the Development Services Division prior to
issuance of a permit regulating any construction activity in the APA. Permit applicants that are
subject to the standards must submit a hazardous materials management statement that describes
how construction activity standards will be met. The permit will not be issued until the statement
is approved. The following is a summary of construction activity standards:
A designated person must be on site during operating hours who is responsible for
supervising the use and storage of hazardous materials and who will take appropriate
mitigating actions necessary in the event of a fire or spill;
Secondary containment of hazardous materials and refueling areas must be provided;
Access by the public to hazardous materials left on site during non‐working hours must be
prevented;
Construction vehicles and stationary equipment that are found to be leaking fuel, hydraulic
fluid, and/or other hazardous materials must be removed from the site and the APA or
repaired in place as soon as possible and may remain on the site in the interim only if
leakage is completely contained;
Storage and dispensing of flammable and combustible liquids from tanks, containers, and
tank vehicles into the fuel and fluid reservoirs of construction vehicles or stationary
equipment must meet Uniform Fire Code requirements;
Equipment and supplies adequate for the immediate clean‐up of the worst case hazardous
materials spill must be stored on site in close proximity to hazardous materials; and
Unauthorized releases must immediately be contained, reported, and cleaned up.
5.6.7 Fill Quality Standards
Fill material imported to the City may not contain contaminants that exceed Model Toxics Control
Act Cleanup levels. An Imported Fill Source Statement is required for any project in Zone 1 or Zone
1 Modified if more than fifty yards of imported fill will be brought to the site. It is required in Zone
2 if more than 100 yards will be imported. The Development Services Division implements fill
quality standards in the APA with the assistance of the Water Utility.
A summary of information that must be provided in the fill source statement is provided below:
Source location of imported fill
Previous land uses of the source location
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Whether or not fill to be imported is native, undisturbed soil
Whether or not the source location appears on government lists of contaminated sites
Results of sampling and analysis of fill to be imported
Whether or not fill meets quality standards
A source statement is not required for fill material obtained from a Washington Department of
Transportation approved source. Sampling and analysis of fill material is not required if a
professional engineer or geologist certifies that the fill source site has never been developed, filled,
or used such that contaminants could have entered the soil.
Grading permits and other permits allowing imported fill will be issued prior to submittal of the fill
source statement. However, the applicant is required to submit the source statement prior to
placement of fill. Construction and building inspectors check to see that statements certified by a
professional engineer are on file for fill placed at construction sites.
5.6.8 Stormwater Management Requirements
The City prohibits stormwater infiltration in Zone 1 of the APA to reduce the risk of infiltration of
hazardous materials spills borne by stormwater. Zone 1 is largely commercial and bisected by
numerous arterials, a freeway, and a state highway subjecting it to a relatively high risk of
hazardous material spills. Stormwater conveyance, detention, and water quality facilities
constructed in Zone 1 are subject to specifications that have been adopted to ensure that
stormwater is contained within the system prior to discharge to the Cedar River.
In Zone 1 Modified and Zone 2, stormwater conveyance and water quality facilities are required to
be lined to allow treatment to occur prior to infiltration. There are no other restrictions on
infiltration in these two zones.
The City has lined major stormwater conveyance pipes nearest to the downtown wells to prevent
hazardous material spills from leaking into the aquifer.
5.6.9 Wastewater Requirements
Wastewater collection pipes are subject to pipeline specifications that prevent leakage of sewage
into the aquifer. Older wastewater conveyance that was subject to leakage in the vicinity of the
downtown wells has been replaced in recent years with pipe that meets current specifications.
New on‐site sewage disposal systems are not allowed in Zone 1. Existing structures in Zone 1 that
are within three hundred and thirty feet of an existing gravity sanitary sewer with capacity have
been required to connect to it. On‐site sewage systems are allowed in Zone 1 Modified and Zone 2
for single‐family residential development if sewer is not considered to be available according to the
policies of the Wastewater Utility.
5.6.10 Secondary Containment of Underground Storage Tanks
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Renton underground storage tank (UST) regulations include spill/overfill protection and monitoring
for leaks similar to state regulations but they cover a broader range of USTs. The City includes
smaller tanks (down to 60 gallons) and does not exempt some of the tanks exempted by the state
(e.g. those that are part of a wastewater treatment facility, tanks containing wastes that are
subject to federal solid waste regulations, hydraulic and electrical equipment tanks, emergency
back up containment tanks, etc.).
City regulations are implemented by the Fire Department and supplement the already extensive
regulations related to USTs contained in the Uniform Fire Code. The Fire Department alerts the
Department of Ecology should the tank appear to be out of compliance with state regulations.
5.6.11 Pesticide and Fertilizer Risk Management
The Wellfield Protection Study concluded that the risk to the aquifer associated with commercial
and residential use of pesticide and fertilizer was not a major threat due to limited quantities used.
It cautioned against imposing restrictions on the general public that would be difficult and costly to
implement. When we have tested for pesticide, none was detected.
Accordingly, the City pesticide/fertilizer program primarily relies upon education and information
collection. Residents are educated via our Aquifer Awareness Program to minimize use of
pesticides and fertilizers. Along with the Local Hazardous Waste Management Program in King
County, the Water Utility and the Solid Waste Utility distribute information regarding alternatives.
The City has adopted regulations that require persons who keep records of pesticide applications
per Washington Department of Agriculture rules, usually commercial and institutional applicators,
to provide the records to the Water Utility. The purpose of this requirement is to, over time, get a
better picture of pesticide and fertilizer use in the APA.
5.7 Coordination with Emergency Responders
5.7.1 Response Procedures
Response to hazardous materials spills in well capture zones is the responsibility of the City of
Renton Fire Department. The Water Utility’s role is to provide information to Fire Department
staff about drinking water wells and the aquifer, to respond to selected spills that are of particular
concern, and to follow up to ensure that long term remediation, where necessary, is adequate to
protect drinking water. The Fire Department has been enthusiastic and professional in its efforts
to protect the drinking water supply.
The Renton Fire Department’s HAZMAT Unit provides first response to any hazardous material spill
within the City limits after dispatch by 911. Actions by the first arriving officer include product
identification, isolation of the area, and denying entry. The spill is then contained, if possible, by
such means as shutting off valves or righting containers. A spill that cannot be contained will be
confined to prevent spread into drains and waterways. Plugging and diking drains or using
absorbents, barricades, and booms, etc accomplishes confinement.
6-11
The Incident Commander (IC) for spills occurring in Renton is a Fire Department employee
according to an agreement with the Washington State Patrol. In particular, the IC is the person‐in‐
charge beginning with the first arriving unit. Command is transferred to ranking officers as the
emergency dictates. If the IC determines that the spill will concern other City of Renton agencies,
they will request activation of the Emergency Coordination Center (ECC). The ECC, which is headed
up by the Fire Chief, has overall control and includes representation from each City department.
Assistance in denying public entry to the affected area or in carrying out evacuation orders is
provided, as needed, by the Renton Police Department. Assistance in containing a spill that poses
a risk of entering storm sewers and/or surface water is often provided by the Maintenance Division
of the Planning/Building/Public Works Department.
The Fire Department’s Hazardous Material Specialist provides technical support to the HAZMAT
Unit. This specialist is notified of spills and responds as quickly as possible to the scene to assist
with product identification, review of written and on‐line technical data relevant to management
of the spill, and, in some cases, to run tests on the product to determine it’s characteristics and
control. The Hazardous Materials Specialist also serves as the City’s liaison to county, state and
federal agencies that may be brought in to assist with a spill.
The IC notifies the Water Utility if the spill occurs inside the Aquifer Protection Area (Figure 6‐1).
Upon notification of a spill in the APA, Water Utility staff, at their discretion, discuss details of the
incident with the IC, respond to the spill in person, and/or contact the responsible party to ensure
that appropriate soil and groundwater testing are done. Utility staff will follow up on both short
and long‐term cleanup activities to ensure that drinking water is protected. If the spill occurs at a
facility regulated by the Utility, staff may require, as provided by the Aquifer Protection Code, that
the owner file report(s) detailing the reason for the spill, procedural changes to prevent spills in
the future, and remediation progress. The Utility may seek the assistance of the Seattle‐King
County Department of Public Health to assess risk associated with a contamination incident and to
communicate with the public if residents or business owners have concerns regarding exposure.
The IC notifies the Department of Ecology (Ecology) according to the following general guideline:
Should the spill be on land, Ecology will be notified if the quantity exceeds ten gallons. A spill of
any size is reported to Ecology if it reaches surface water or has the potential to do so. Ecology will
respond at its discretion depending on environmental risk and whether the first responders have
the spill under control.
The IC may contact the EPA for assistance in responding to either very large spills or very
hazardous spills. The Local Emergency Planning Committee of King County (LEPC) may be called
out to coordinate response of neighboring emergency responders to respond to large or very
hazardous spills.
The King County LEPC would coordinate response to a major disaster such as a severe earthquake.
LEPC has compiled a database of hazardous materials present at facilities that are required to
report their inventory according to federal Superfund Amendments and Reauthorization Act. This
information can be used to direct emergency response to those facilities that pose the greatest risk
to the public. The LEPC has resources suitable for such response that local fire departments or
districts may not have.
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6.7.2 Clean Up Procedures
Clean up of the spill can be addressed when the material has been identified and contained. If the
shipper of the product or other party responsible for the spill is known and can be contacted, the
IC will require them to clean up the spill or contract with an environmental cleanup firm to do so. If
this is not possible, HAZMAT may clean up small spills and may attempt to recover costs later.
Ecology directs cleanup activities for spills to which they respond, again attempting to get the
responsible party to clean up or contract with a cleanup firm. When this is not possible, Ecology
has it’s own contractor clean up the spill. Costs are rarely recovered in such cases.
The Washington State Department of Transportation (WSDOT) responds to spills on state or
interstate highways after notification by 911. WSDOT is equipped to clean up small spills and can
siphon fuel out of ruptured fuel tanks to prevent further leakage.
HAZMAT and fire suppression crews carry plastic laminated maps showing well locations and the
Aquifer Protection Area in trucks and command cars. Aquifer protection is taken into account in
determining appropriate response to both fires and hazardous materials spills. During a fire, the IC
will consider such factors as the degree to which the fire can likely be controlled, the risk to fire
fighters, the toxicity and flammability of the materials stored in affected structures, and the
proximity of sensitive environmental resources such as groundwater and surface water features
when determining whether suppression with water and foam is appropriate. The IC may decide
not to extinguish the fire and may only spray adjacent structures to prevent spread of the fire, in
which case the likelihood of infiltration of contamination to the aquifer is reduced.
Some of the larger and/or higher hazard facilities in well capture zones have drainage control
systems. These systems direct both sprinkler and fire suppression water to a watertight pond from
which it can be later removed along with any contamination associated with the incident.
6.7.3 Interagency Cooperation
The Water Utility and Fire Prevention Bureau work cooperatively to collect hazardous materials
inventories from facilities located in the Aquifer Protection Area.
6.8 Aquifer Management Monitoring Program
In addition to operations and regulatory monitoring, the Water Utility conducts aquifer monitoring
designed to provide early warning of contamination moving towards production wells. Appendix L
of the City of Renton 1996 Water System Plan contains details of the Aquifer Management
Monitoring Program. In 2011/12, a risk assessment, priortization and repair and
rejuvenation of monitoring wells project is being undertaken. This will produce a cost
effective and risk‐relevant monitoring program.
The goal is to monitor production wells and nearby monitoring wells approximately quarterly for
volatile organic chemicals (VOCs). Water level, used to determine the rate and direction of
groundwater flow, is usually measured at the same time.
Aquifer water quality and water level data, used in conjunction with a computerized groundwater
flow model, enable the City to quickly make operational changes that prevent contaminated
6-13
groundwater from entering production wells. Data are also useful in determining the source of
contamination. Both water quality and water level data are entered in a computerized database.
Most production wells are fitted with water level transducers that measure water levels
continuously and automatically transmit data to a computer database.
6.9 Countywide Efforts to Protect Groundwater
The City is an active participant with the King County Department of Natural Resources, the
Muckleshoot Tribe, state agencies, and citizen groups to protect and manage water resources of
the Cedar River Basin. The adopted Cedar River Basin and Nonpoint Action Plan guides this effort.
The Water Utility and Stormwater Utility worked to ensure that groundwater protection would be
emphasized by this watershed plan in keeping with the City’s perspective that protection of surface
and groundwater should be an integrated effort. Actions being taken under the auspices of the
Plan protect groundwater quality and promote recharge. The basin planning area encompasses
approximately the same area as the Cedar Valley Sole Source Aquifer Project Review Area
designated by EPA.
The Water Utility played a role in development and adoption of groundwater protection policies
contained in Countywide Planning Policies for Growth Management and the King County
Comprehensive Land Use Plan. The former contains policies that foster groundwater protection
throughout King County while the latter focuses upon rural areas only. The Utility also coordinates
with the Local Hazardous Waste Management Program in King County to provide technical
assistance to businesses regarding best management practices to protect public health and the
environment.
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Table 1‐1: Chronology of the Development of Renton’s Aquifer Protection Program
1983 to 2010
ACTION OR EVENT YEAR
Water System Plan recommends Aquifer Protection Program 1983
Tanker truck carrying diesel fuel overturns on I‐405 and spills its contents 1983
City Council authorizes Well Field Protection Study 1983
Well Field Protection Study completed by CH2M Hill and recommendations adopted by City Council 1984
Maplewood Golf Course acquired for use as future well field to provide back up for downtown aquifer 1985
Development of Maplewood supply 1986 ‐ 1999
Well Field Monitoring Study completed by CH2M Hill; Includes installation of monitoring wells, provides ground
water quality and flow information for the downtown aquifer, estimates interaction with the Cedar River, and
delineates the Aquifer Protection Area; Initiates ongoing early‐detection water quality and water level monitoring
program
1986 ‐ 1988
Initiation of ground water quality monitoring using a network of monitoring wells 1986 (ongoing)
Olympic Pipe Line Company petroleum spill in Maple Valley; City monitors progress of cleanup to ensure no
contamination of downtown wells. 1986 ‐ 1993
Sole Source Aquifer Petition prepared by CH2M Hill and submitted to EPA (approved in 1988). 1986
Aquifer pumping test recommends aquifer management techniques that can be used in the event of a spill to
prevent contamination of production wells. 1987
Texaco service station gasoline spill detected in monitoring well; City works with owners to ensure adequate
cleanup and compensation for City expenses. 1987 ‐ 1988
Tetrachloroethylene contamination detected in a monitoring well possibly from dry cleaner; Requested owner
change waste disposal practices; Monitoring and operational changes to ensure that plume does not enter
production wells; Concentrations decline over time.
1988 (ongoing)
Underground storage tank secondary containment ordinance adopted by City Council prior to state preemption of
local ordinances; Ordinance requires replacement with double wall tanks of all single‐wall tanks in one‐year
capture zone for downtown wells within 18 months.
1988
Designation of Aquifer Protection Area by City Council (Zone 1 is one‐year capture zone and Zone 2 is greater than
one year, up to City limits) 1988
Installation of additional monitoring wells 1988
Replacement of leaking sewers in vicinity of Downtown Wellfield 1988 ‐ 1996
Development of two‐dimensional computer model of aquifer 1989
Aquifer awareness program initiated with Centennial Clean Water Fund matching grant awarded by Washington
Department of Ecology/Water Quality Financial Assistance Program 1989 (ongoing)
The Monitoring Well Installation Project undertaken with Centennial Clean Water Fund matching grant awarded
by Washington Department of Ecology/Water Quality Financial Assistance Program (consulting team of RH2
Engineering and Pacific Groundwater Group); Early warning monitoring well network expanded and additional
water quality and ground water flow data obtained
1990 ‐ 1993
Development of three‐dimensional computer model of downtown and Maplewood aquifers by Pacific
Groundwater Group 1991 ‐ 1994
Lining of leaking storm sewers in immediate vicinity of downtown wellfield 1991
Development of Water Quality Database by Economic and Engineering Services; Later enhanced to include water
levels and to relate to City Geographical Information System. 1992 (ongoing)
Coordinate with King County on aquifer protection in the unincorporated area via Cedar Basin and Nonpoint
Action Plan 1992 (ongoing)
Adoption of Aquifer Protection Ordinance by Renton City Council places restrictions on storage and handling of
hazardous chemicals in the Aquifer Protection Area among other protections; Annual facility inspection program
begins
1992 (ongoing)
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ACTION OR EVENT YEAR
Amended water meter rates for the purpose of funding staff to further implement Aquifer Protection Program 1992
Heating Oil Tank Study (SCS Engineers) estimates risk of contamination and identifies relative risk associated with
various neighborhoods in Aquifer Protection Area 1994
Maplewood Treatment Plant construction completed 1995
Groundwater Guardian Team formed; Renton designated as Ground Water Guardian Community by Ground
Water Foundation. Ongoing annual designation. 1996 (ongoing)
Compliance with Wellhead Protection Requirements implemented by the Washington Department of Health;
Includes susceptibility assessment, delineation of 1, 5, and 10‐year capture zones for wells and spring,
identification of potential sources of contamination, notification of owners and agencies, coordination with
emergency responders, and contingency plan to supply customers in the event of loss of downtown aquifer due to
contamination.
1997 (ongoing)
Tetrachloroethane (PCE) is detected in well PW‐8 during routine sampling. PCE is later detected in wells, RW‐1,
RW‐2 & RW‐3, and PW‐9 as well as in groundwater monitoring wells MW‐18, MW‐19, MW‐20, MW‐24, MW‐31S,
MW‐40 and MW‐42. The contamination is traced to wastewater ponds and waste soil mixing areas located on the
Stoneway property next to Cedar River Park. July and August 1998, Stoneway removes waste concrete slurry from
four ponds found to contain PCE contamination. In addition Stoneway removes waste soil stored on site in the
waste soil mixing area which was also found to be contaminated with PCE. Sampling revels the levels of PCE
contamination begin to drop in City wells.
1997
Aquifer Protection Regulations amended 1998
Aquifer Protection Regulations amended 2000
Employee Training for Aquifer Protection booklet developed 2001
500‐gallon limit on total quantity of hazardous materials allowed at one facility in Zone 1 went into effect. Two
facilities, each with about 40,000 gallons of hazardous materials, either close or remove all but 500 gallons 2002
Aquifer Protection Regulations amended 2002
Olympic Pipeline Risk Assessment and Leak Detection Feasibility Study completed ; Identifies potential methods to
improve leak detection 2004
Stoneway moves their concrete batch plant and begins cleanup of the property located next to Cedar River Park 2008
Letter of compliance from Olympic Pipe Line Company (OPLC) which outlines their compliance with Renton
Ordinance #4572 (Pipeline Franchise Agreement) for the years 2009 & 2010. Also submitted the latest version of
their Spill Response Plan (dated April 2009).
2011
Monitoring well risk assessment, priortization and repair and rejuvenation of monitoring wells 2011
Alignment of Aquifer Protection Area with capture zones delineated by Renton Groundwater Model 2012
Appendix M
WATER RECLAMATION CHECKLIST
For questions, call Kristina Westbrook,
King County Reclaimed Water Program Manager at (206) 296‐5279
www.kingcounty.gov/reclaimedwater
Revised 12/12/2011
Water Reclamation Evaluation Checklist
For Systems with 1,000 or more Connections
The County and State recognize that changing conditions could initiate a need to
respond in new ways to future water quality standards, wastewater discharge
requirements, take advantage of advances in treatment technologies and/or allow
our region to be positioned to respond to changes associated with climate change
and population growth.
In 2003, Chapter 90.46 of the Revised Code of Washington (RCW) was amended
to require public water systems serving 1,000 or more connections to evaluate
opportunities for reclaimed water when completing their water system plans.
Please use this checklist to meet King County consistency requirements in
responding to this legislation.
Water System Name:_______________________________
Date: ____________________________________________
PWS ID#__________________________________________
Contact: ________________________________________
1. Identifying Potential Future Demand for Reclaimed Water: King County maintains a database and map of potential
reclaimed water users for evaluating future projects. Please use the template below, or similar table, to provide
information to assist King County in further researching these potential uses.
Large Utility Water Users (choose one):
Water Reclamation Evaluation Checklist
Page 2
2. Environmental Commitment: Are you a city/town, or providing water service to a city/town, that has made
commitments within resource management plans, salmon recovery plans, or other environmental initiatives for
which there is a potential opportunity for using reclaimed water to assist in meeting commitments? (choose one)
Water Reclamation Evaluation Checklist
Page 3
4. Local Reclaimed Water Legislation: If water reclamation is mandated for this water system through local
government agreement, contract, local regulations, ordinances, or other mechanisms, please provide a copy of the
governing mechanism (choose one).
Appendix N
AQUIFER MONITORING REPORT
P 206.329.0141 F 206.329.6968 | 2377 Eastlake Avenue East | Seattle, Washington 98102 | www.pgwg.com
Water Resource & Environmental Consulting
Technical Memorandum
To: Tom Malphrus, City of Renton; Lara Kammereck, Carollo Engineers
From: Glenn Mutti-Driscoll & Pony Ellingson, Pacific Groundwater Group
Re: Appendix O Update, Aquifer Monitoring Plan for 2012 WSP, City of Renton
Date: February 1, 2012
This memo presents an updated aquifer monitoring plan for use in the City of Renton’s 2012
Water System Plan (WSP) update. This plan was developed concurrent with a monitoring well
prioritization and repair project that Pacific Groundwater Group (PGG) is performing for the
City. As significant overlap between the two projects exists and the monitoring well prioritiza-
tion project continues for an additional year, recommendations in this memo may differ from fi-
nal recommendations made in the monitoring well prioritization and repair report.
As part of this Aquifer Monitoring Plan update, PGG reviewed the Aquifer Management Moni-
toring Plan from the 2005 WSP, interviewed City of Renton personnel involved in aquifer moni-
toring programs (Tom Malphrus, Abdoul Gafour, Helen Weagraff, and Craig Pray) to identify
potential improvements and goals, and coordinated recommendations to be in line with the rec-
ommendations being made for the monitoring well prioritization and repair project.
AQUIFER MONITORING PLAN SUMMARY
The City maintains 54 monitoring wells to evaluate aquifer water quality, groundwater flow
paths, and changes in groundwater levels. The goal of monitoring is to provide an early warning
system for contaminants present in Renton water supply aquifers and to track short term (season-
al) and long term changes in aquifer water table elevations for the purposes of water resource
management. The number of wells may decrease in the future as a result of decommissioning of
low priority wells.
The City hired PGG to assess the state of the City’s monitoring wells and to recommend main-
tenance, upgrades, and decommissioning as may be appropriate. The ongoing monitoring priori-
tization and repair project includes prioritizing the monitoring wells based on their probability of
detecting a contamination event prior to detection in production wells. Depending on final results
of the assessment and maintenance recommendations, modifications may be made to the aquifer
monitoring plan prior to the next WSP update.
The three major components of the plan are explained in the subsections below.
Renton Aquifer Monitoring Plan 2
FEBRUARY 1, 2012
Aquifer Water Quality Monitoring
The primary objective of aquifer water quality monitoring is to detect contamination entering
drinking water aquifers before contaminants can reach the production wells. A primary con-
straint is that production wells are currently sampled quarterly and monitoring wells are sampled
for water quality annually. Those disparate schedules are one factor influencing which monitor-
ing wells should be sampled to meet the early-warning objective (as monitoring wells close to
production wells are not sampled frequently enough to provide early warning).
Although the monitoring well prioritization and repair project is not complete, an interim rec-
ommendation is that the City collect annual Volatile Organic Compound (VOC) samples from
the 12 monitoring wells listed below. Additional monitoring wells with high priority will be dis-
cussed in the final report and may be included in future monitoring events at the City’s discre-
tion. The proposed annual sampling schedule and wells identified for sampling are listed in the
following table, with wells for each sampling event listed in order of priority from highest to
lowest.
March (six samples) September (six samples)
MW-31S, 31D, 25S, 25D, 4, 34S MW-42, 26, 3, 5, 38S, 33
Water Utility Engineering personnel will sample the wells and enter the groundwater quality da-
ta into the City water quality database.
Detailed sampling plans depend on well and pump configurations which will be determined
through the monitoring well prioritization and repair project now underway by the City and
PGG.
Downtown Aquifer Water Level Monitoring
The goal of water level monitoring in the downtown aquifer is to collect sufficient water level
data to allow analysis of short-term, seasonal, and long term trends, including pumping effects,
river effects, and effects of urbanization.
The proposed program is as follows:
Measure depth to water in wells MW-1, MW-10, MW-18, MW-20, MW-21, MW-30S,
MW-30D, MW-31S, MW-31D, MW-34S, MW-34D, OSP-9, HC-6I, MW-25S, MW-
25D, and MW-27.
Collect water levels monthly, with a target of bi-weekly measurements from June
through August.
Measurements should be to a precision of 0.01 feet, referenced to a marked and surveyed
measuring point. Elevation survey precision should be 0.01 feet.
Renton Aquifer Monitoring Plan 3
FEBRUARY 1, 2012
Water Utility Engineering Section shall collect these data until determined otherwise,
and water level measurements are to be entered in the City water level database.
Use pressure transducers connected to the City’s SCADA system and installed in MW-8
and MW-9 to record water levels. Water level data from these wells will be stored in the
SCADA System History database. These wells should have periodic manual water level
measurements taken to assess transducer drift and so that data are available to correct
transducer values in the event that transducer elevations change.
Additional recommendations may be proposed in the ongoing monitoring well prioritiza-
tion and repair project being performed by PGG, with a final report expected in Novem-
ber 2012.
Maplewood Aquifer Water Level Monitoring
The goal of water level monitoring in the Maplewood aquifer is to collect sufficient water level
data to allow analysis of short-term, seasonal, and long term trends, including pumping effects,
river effects, and effects of urbanization.
The proposed program is as follows:
Measure water levels in the shallow alluvial aquifer and deep Maplewood aquifer at the
Maplewood Golf Course.
Use pressure transducers installed in several monitoring wells, including MW-36S, MW-
36D, MW-37S, MW-37D, MW-38S, and MW-38D. Record pressure and temperature
every 10 minutes. Periodically download from the transducers and store data on the
City’s H drive. Water Utility Engineering Section will collect these data until determined
otherwise.
As part of the ongoing monitoring well prioritization and repair project being performed
by PGG, replacement pressure transducers will likely be purchased due to recurring
maintenance and support issues with the existing transducers.
wsp aquifer monitoring plan tech memo.docx
JE1006
Appendix O
WATER FACILITIES INVENTORY FORM
9. 24 HOUR PRIMARY CONTACT INFORMATION 10. OWNER CONTACT INFORMATION
Primary Contact Daytime Phone: (425) 430-7400 Owner Daytime Phone: (425) 430-7210
Primary Contact Mobile/Cell Phone: (425) 766-6171 Owner Mobile/Cell Phone: (206) 909-5441
Primary Contact Evening Phone: (xxx) xxx-xxxx Owner Evening Phone: (xxx) xxx-xxxx
Fax:(425) 430-7426 | E-mail: XXXXXX Owner Fax Phone: | E-mail: XXXXXX
WAC 246-290-420(9) requires that water systems provide 24-hour contact information for emergencies.
6. PRIMARY CONTACT NAME & MAILING ADDRESS 7. OWNER NAME & MAILING ADDRESS 8. Owner Number 004845
RAY SLED [MANAGER] RENTON, WATER UTILITY TITLE: ENGINEERING
SUPERVISOR
3555 NE 2ND ST ABDOUL GAFOUR
RENTON, WA 98056 1055 GRADY WY 5TH FLOOR
RENTON, WA 98055
STREET ADDRESS IF DIFFERENT FROM ABOVE STREET ADDRESS IF DIFFERENT FROM
ABOVEATTN ATTN
ADDRESS ADDRESS
CITY STATE ZIP CITY STATE ZIP
11. SATELLITE MANAGEMENT AGENCY - SMA (check only one)
Not applicable (Skip to #12)
Owned and Managed SMA NAME: SMA Number:
Managed Only
Owned Only
12. WATER SYSTEM CHARACTERISTICS (mark all that apply)
Agricultural Hospital/Clinic Residential
Commercial / Business Industrial School
Day Care Licensed Residential Facility Temporary Farm Worker
Food Service/Food Permit Lodging Other (church, fire station, etc.):
1,000 or more person event for 2 or more days per year Recreational / RV Park ________________________________________
13. WATER SYSTEM OWNERSHIP (mark only one)14. STORAGE CAPACITY (gallons)
Association County Investor Special District
City / Town Federal Private State 22,500,000
1. SYSTEM ID NO. 2. SYSTEM NAME 3. COUNTY 4. GROUP 5. TYPE
71850 L RENTON, CITY OF KING A Comm
ONE FORM PER SYSTEM
WATER FACILITIES INVENTORY (WFI) FORM
Printed: 10/18/2012
Updated: 09/19/2012
Quarter: 1
Submission Reason: Source Update
WFI Printed For: On-Demand
RETURN TO: Northwest Regional Office, 20435 72nd Ave S STE 200, Kent, WA, 98032
- SEE NEXT PAGE FOR A COMPLETE LIST OF SOURCES -
Page:1DOH 331-011 (Rev. 06/03)
WATER FACILITIES INVENTORY (WFI) FORM - Continued
RENTON, CITY OF CommA KING71850 L
5. TYPE4. GROUP 3. COUNTY1. SYSTEM ID NO. 2. SYSTEM NAME
15 16
SOURCE NAME
17
INTERTIE
18
SOURCE CATEGORY
19
USE
20 21
TREATMENT
22
DEPTH
23 24
SOURCE LOCATION
So
u
r
c
e
N
u
m
b
e
r
LIST UTILITY'S NAME FOR SOURCE
AND WELL TAG ID NUMBER.
Example: WELL #1 XYZ456
IF SOURCE IS PURCHASED OR
INTERTIED,
LIST SELLER'S NAME
Example: SEATTLE
INTERTIE
SYSTEM ID
NUMBER
WE
L
L
WE
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S01 Well 1 RW-1 X X Y X X X 57 2200 SE NW 17 23N 05E
S02 Well 2 RW-2 X X Y X X X 52 2200 SE NW 17 23N 05E
S03 Well 3 RW-3 X X Y X X X 52 2200 SE NW 17 23N 05E
S04 Well 5 PW-5A X X Y X X X 285 1300 NE NW 05 23N 05E
S05 Spring Brook Springs X X Y X X X 1600 SE NE 06 22N 05E
S06 InAct 08/30/2012 Well 4 X X X 92 100 SW SE 04 23N 05E
S07 Well 8 PW-8 X X Y X X X 66 3500 SE NW 17 23N 05E
S08 77050Y/Seattle 77050 Y X Y X 0 SE NW 17 23N 05E
S09 Well 9 PW-9 X X Y X X X 65 1250 SW NE 17 23N 05E
S10 Wells 1,2,3 X X Y X X X 52 6600 SE NW 17 23N 05E
S11 Well 11 PW-11 X X Y X X X X 284 2500 NE NE 21 23N 05E
S12 Well 17 PW-17 X X Y X X X X 242 1500 NE NE 21 23N 05E
S13 Wells 11,12,17 X X Y X X X X 384 5500 NE NE 21 23N 05E
S14 InAct 04/04/2001 Emergency Well
EW-3
X X X 45 1500 SE NW 17 23N 05E
S15 Well 12 PW-12 X X Y X X X X 310 1500 SE SE 16 23N 05E
S16 Emergency Well EW-3R X X Y X X X 40 1600 SE NE 17 23N 05E
S17 89500/Tukwila 89500 F X Y X 2400 00N 00E
S18 38150/Kent 38150 1 X Y X 1900 00N 00E
S19 38800/Skyway 38800 M X Y X 0 00N 00E
Page:1DOH 331-011 (Rev. 06/03)
WATER FACILITIES INVENTORY (WFI) FORM - Continued
RENTON, CITY OF CommA KING71850 L
5. TYPE4. GROUP 3. COUNTY1. SYSTEM ID
NO.
2. SYSTEM NAME
90
33. ROUTINE COLIFORM SCHEDULE
90
A. How many residents are served by this system 180 or more days per
year?
29. FULL-TIME RESIDENTIAL POPULATION
62100
DOH USE ONLY!
CALCULATED
ACTIVE
CONNECTIONS
DATE:SIGNATURE
:
36. I certify that the information stated on this WFI form is correct to the best of my knowledge.
36. I certify that the information stated on this WFI form is correct to the best of my knowledge.
SIGNATURE: _________________________________________________________
DATE:_________________________________________
PRINT NAME: _________________________________________________________
TITLE:_________________________________________
35. Reason for Submitting WFI:
90909090909090909090
DECNOVOCTSEPAUGJULJUNMAYAPRMARFEBJAN
313031303131303130312831
288002880028800288002880028800288002880028800288002880028800
DECNOVOCTSEPAUGJULJUNMAYAPRMARFEBJAN
313031303131303130312831
205001980020500198002050020500198002050018800205001900020500
DECNOVOCTSEPAUGJULJUNMAYAPRMARFEBJAN
B. How many days per month are they present?
A. If you have schools, daycares, or businesses connected to
your water system, how many students daycare children and/or
employees are present each month?
B. How many days per month is water accessible to the public?
A. How many total visitors, attendees, travelers, campers,
patients or customers have access to the water system each
month?
31. TEMPORARY & TRANSIENT USERS
B. How many days per month are they present?
A. How many part-time residents are present each month?
32. REGULAR NON-RESIDENTIAL USERS
DECNOVOCTSEPAUGJULJUNMAYAPRMARFEBJAN30. PART-TIME RESIDENTIAL POPULATION
28. TOTAL SERVICE CONNECTIONS
1322
1251B. Institutional, Commercial/Business, School, Day Care, Industrial Services, etc.
1322A. Recreational Services and/or Transient Accommodations (Campsites, RV sites, hotel/motel/overnight units)
0
14703
C. Part Time Residential Units in the Apartments, Condos, Duplexes, Dorms that are occupied less than 180 days/year
B. Full Time Residential Units in the Apartments, Condos, Duplexes, Dorms that are occupied more than 180 days/year
2125A. Apartment Buildings, condos, duplexes, barracks, dorms
0
13268
B. Part Time Single Family Residences (Occupied less than 180 days per year)
A. Full Time Single Family Residences (Occupied 180 days or more per year)
025. SINGLE FAMILY RESIDENCES (How many of the following do you have?)
26. MULTI-FAMILY RESIDENTIAL BUILDINGS (How many of the following do you have?)
27. NON-RESIDENTIAL CONNECTIONS (How many of the following do you have?)
27971
1251
30544
DOH USE ONLY!
APPROVED
CONNECTIONS
Unspecified
ACTIVE SERVICE
CONNECTIONS
OtherNew System Name Change
Inactivate Update - No Change
Update - Change Re-Activate
Page:2DOH 331-011 (Rev. 06/03)
WS ID WS Name
RENTON, CITY OF71850
Total WFI Printed:1
Page:3DOH 331-011 (Rev. 06/03)
Appendix P
WATER LOSS CONTROL ACTION PLAN
App_P.docx 2/13/12
Appendix P - WATER LOSS CONTROL ACTION
PLAN
Introduction
This Water Loss Control Action Plan (WLCAP) addresses the element of the
Municipal Water Law as defined by WAC 246-290-820. It presents an overview of
the activities that the City has been performing to date, a summary of estimates of
authorized water use and distribution system leakage (DSL), and planned activities for
further reducing apparent and real water losses within Renton’s distribution system.
Historical and Current Activities
Leak Detection
The City began a proactive leak detection program in 1994. In 1999 they purchased
leak detection equipment, Subsurface Leak Correlator. They have incorporated leak
detection into their routine valve maintenance program. The maintenance crew of
two FTEs is assigned to checking all of the valves within the City’s distribution
system on a regular schedule, which allows them to cycle through the entire system in
approximately 14 months.
At every valve location, the crew will also use the leak detection equipment to check
for any potential leaks. By incorporating the leak detection into the valve maintenance
program, the crew is able to check the entire distribution system for possible leaks, on
nearly an annual basis.
As leaks are discovered they are repaired. Following an aggressive replacement
program between 2000 and 2005 for leaking steel pipes, the City has most recently
found very few leaks within its system.
In order to provide clear documentation for DOH and to facilitate communication with
other City departments, it is recommended that the water shop incorporate some
specific reporting and evaluation guidelines.
1.) An electronic record should be made for each leak detection testing point of
the exact location (nearest meter number and nearest address), date, time,
name of personnel performing the test, and the results of the test.
2.) All personnel using the leak detection equipment should be formally trained
and certified to use the equipment. Documentation of training should be
readily available upon request.
3.) The Subsurface Leak Correlator should be calibrated and maintained regularly
per the manufacturer’s guidelines.
Appendix P - WATER LOSS CONTROL ACTION PLAN
2 App_P.docx 2/13/12
Source Meters
All of the City’s wells and interties are metered. The well meters are calibrated every
two years.
Customer Meters
Customer meters are categorized as large meters (3-inches or larger) and small meters
(2-inches and smaller). All large meters are tested and repaired (as needed) on an
annual basis.
Small meters are repaired and replaced on an as-needed basis. Approximately
ten years ago, most meters that were twenty to thirty years of age were replaced.
However, at this time there are a number of small meters that are near or past their
useful life. The ability of the maintenance department to perform regular maintenance
and replacement on its smaller meters is limited by staff size and available budget.
The City has replaced all of its large meters and small meters on its two largest
commercial meter read routes with radio-read meters. The City is evaluating an
expansion of its radio-read meters to include all remaining small meters. It is likely
that in addition to improved staff efficiencies, there is a potential for significant
benefits by addressing possible meter inaccuracies of aged meters. The maintenance
and engineering staff is planning a trial sampling of its oldest small customer meters to
quantify possible inaccuracies.
Estimated Authorized Uses
The following are authorized metered and unmetered water uses that must be
subtracted from water produced along with customer consumption to determine the
distribution system leakage (DSL). (“Authorized Consumption” is defined by WAC
246-290-820 and WAC 246-290-010.) For each of the estimated authorized uses there
is also a description of whether the City is currently estimating this usage.
Water Main Flushing
The City currently records water used for water main flushing. The maintenance
crews have six meters that are used to record water discharged during flushing
activities. While this is a good start for documenting all water used for main flushing,
there are some recommended changes to the way in which the data is recorded and
reported to other City departments that will facilitate reporting to DOH and tracking of
water use.
It is recommended that the metered water used for main flushing be recorded monthly
in its own category, City-Hyd, separate from other water uses.
City Maintenance Trucks
There are five City maintenance vehicles that use water for maintenance purposes:
street cleaning (2), storm vactor truck, sewer vactor truck, and street flusher truck
Appendix P - WATER LOSS CONTROL ACTION PLAN
App_P.docx 2/13/12 3
(used for cleaning muddy streets). Each of these five maintenance trucks have meters
on them from which monthly water use readings are recorded. Currently, the water
used by these five maintenance vehicles is recorded in utility billing with other water
uses. It is recommended that the water use from these five maintenance vehicles be
recorded separately from other City water uses.
Fire Fighting and Fire Training
Both fire fighting and water used for fire training are described as authorized uses that
should be subtracted from water production. The City does not currently have any
way of estimating the water used for either of these purposes. This could be a
significant source of water consumption, particularly for the fire fighting training
facility located within the City’s service area. Water used for fire fighting is currently
unmetered and therefore also not reported. This could at times significantly contribute
to apparent DSL.
It is recommended that a meter be installed at the fire training facility within the City’s
service area. This meter would be read as part of the regular meter route for
industrial/commercial/institutional customers.
For fire fighting, it is recommended that flows be estimated based on the hydrants
used and the duration of flow for a specific event. This would require fire department
personnel to record information following each event and submit monthly reports to
the City’s water shop or engineering department.
Cleaning Water Tanks and Reservoirs
The City does not currently record the water used during the cleaning of its storage
facilities because it has not seemed significant since the cleaning is not performed
annually. However, since the City is now required to calculate DSL on a rolling
three year average and each year meet the DSL requirement there is a potential that in
a year where tank cleaning occurs, not recording the amount of water lost during this
activity could negatively impact the City’s ability to meet it’s required goal.
Distribution System Leakage Calculation
Table 1-1 presents the calculation for the distribution system leakage. Included in the
table is the past three years (2004 – 2006) of water produced, customer consumption,
and estimated authorized consumption. (Note: for June 2008 reporting the three-year
average will updated to 2005 through 2007.)
Renton rarely has to purchase water to supplement its water demands. However, for
years that Renton purchases water from the City of Seattle, the amount purchased will
be added to the water produced.
Appendix P - WATER LOSS CONTROL ACTION PLAN
4 App_P.docx 2/13/12
Table 1
Distribution System Leakage Calculation
(Three-Year Average for 2004 – 2006) (MG)
PRODUCTION
Water Production 2,793
Water Purchased 41______
Total Produced and Purchased 2,834 MG
CONSUMPTION
Metered Customer Consumption 2,304
Water Sold to Other Utilities 60
Estimated Authorized Uses
Main Flushing NA
Maintenance Trucks1 NA
Fire Fighting NA
Tank/Reservoir Cleaning NA______
Total Authorized Consumption 2,364 MG
DISTRIBUTION SYSTEM LEAKAGE
DSL Volume 470 MG
DSL Percentage 16.6 %
Note:
1.) Maintenance trucks include street sweeping and vactor trucks.
Planned Activities for Reducing Distribution System
Losses
Five activities or areas of focus have been identified to address apparent and real
distribution system losses within Renton’s system. These include:
Revised reporting of authorized uses
Metering for fire training activities and estimates of water use for fire fighting
Water audit of City Park’s irrigation meters
Audit of utility billing system
Radio-read program for small customer meters
Each of these activities is described in greater detail below, including the reason for
selecting each activity.
Appendix P - WATER LOSS CONTROL ACTION PLAN
App_P.docx 2/13/12 5
Revised Reporting for Authorized Uses
Attached to this document are several reporting templates for use by the City’s
maintenance department. These templates are based on existing reporting templates
by the maintenance department, but have been modified to support DOH reporting
requirements for the municipal water law. New reports have also been added to record
authorized uses, such as tank cleaning that are not currently being measured.
Metering for Fire Fighting Activities
The City does not currently have any method of estimating the amount of water used
for fire fighting activities, which can be a significant contributor to apparent
distribution system leaks. Two steps are planned to better be able to estimate water
used for fire fighting activities. First, is to install a meter at the fire fighting training
facility and begin reading and reporting water use from this facility as part of regular
meter reading activities.
The second activity is for City maintenance or engineering staff to discuss with the
fire department estimating and reporting of fire fighting activities (non-training). A
reporting template for the fire department to record water use for fire fighting is
attached to this document. It includes the duration of fire fighting activities and
number of hydrants used, so that an approximate flow can be calculated.
Water Audit of City Park’s Irrigation Meters
The City’s Parks Department irrigation meters have not been systematically inspected
to verify the accuracy of the data being recorded. Other large
industrial/commercial/institutional (ICI) water users have had meters inspected and in
many cases replaced with radio read meters. Other ICI meters are inspected on a
regular basis, therefore the Parks Department irrigation meters are one of the next
priorities.
Audit of the City’s Utility Billing System
The City’s current billing system was installed in 2004. An audit of this system has
not yet been performed to fully verify the accuracy of the information recorded and
the reporting from the system. It may be that there are inaccuracies with the billing
system that are contributing to apparent DSL. It is important to note that there was a
significant increase from a long-term downward trend in the calculated DSL between
2004 through 2006, which coincides with the installation of the new software. It is not
clear if this may be due to errors that existed in the previous billing system (that
contributed to underreporting), or are now occurring with the new system.
Appendix P - WATER LOSS CONTROL ACTION PLAN
6 App_P.docx 2/13/12
Radio Read Program for Smaller Customer Meters
The City currently has radio read meters for many of its largest customers; primarily
ICI. Installation of radio read meters for all of Renton’s service area would achieve
two objectives. The City will be replacing aged meters that are nearing or have
reached their useful lives, and as a result reduce potential under-reading of
consumption, which is inherent in aged meters. To date, the maintenance department
has not had the staff availability to service and check all of the small customer meters
as they have been able to do with the large meters.
The second objective that will be achieved with a fully implemented radio read
program is reduced staff time to collect meter data and more efficient use of staff
resources.
Schedule and Budget for Achieving Distribution
System Loss Standard
Table 2 identifies the planned schedule for implementation of each of the water loss
control activities. Implementation of some of the activities, such as estimating water
use for cleaning storage facilities and audit of Park irrigation meters, requires less
effort and will likely be more easily implemented. Other activities may be more
challenging to implement and therefore take longer due to budgetary and/or staff
limitations. This is discussed more fully in the last section of this document.
Table 3 presents the budget for the planned activities. Most of the activities do not
have a budgetary cost associated with them, but in most cases staff time will be
required to implement.
Appendix P - WATER LOSS CONTROL ACTION PLAN
App_P.docx 2/13/12 7
Table 2
Schedule for Implementation of Water Loss Control Activities
Activity Planned Schedule
Revised Reporting Beginning January 2008
Fire Fighting
Estimates of water use during fire fighting
activities (not at the training facility)
Beginning January 2008
Metering at the training facility By June 2008
Audit Park Department irrigation meters Included with annual ICI meter inspections beginning 2008
Audit of City’s Utility Billing System By December 2008
Radio Read for Small Customer Meters 2008 – 2012
Table 3
Budget for Water Loss Control Activities
Activity Estimated Cost
Revised Reporting No Cost
Fire Fighting
Estimates of water use during fire fighting
activities (not at the training facility)
No Cost
Metering at the training facility $5,000 for new meter
Audit Park Department irrigation meters No Cost (requires coordination between departments and
staff time)
Audit of City’s Utility Billing System No Cost (if done in-house)
Radio Read for Small Customer Meters $800,000 (over four years)
Potential Issues for Consideration Implementation of
Water Loss Control Activities
There are several issues that could delay implementation of the activities identified in
this Water Loss Control Action Plan.
Budget
Of the five activities identified in this document, the activity that will be most
impacted by budget will be the small meter radio read program. Fully implementing
radio read meters throughout the City’s entire service area will likely require a
significant additional budget allocation spanning several years.
Appendix P - WATER LOSS CONTROL ACTION PLAN
8 App_P.docx 2/13/12
Staff Availability
Implementation of the Park’s irrigation meter audit and the utility billing audit will be
most strongly impacted by staff availability. For the utility billing audit, it may be that
outside assistance will be required, which also could have budgetary implications.
The audit also requires cooperation between City departments.
Interorganizational / Interdepartmental Coordination
Several of the water loss control activities will require coordination between
departments and groups within the City’s governmental organization. Coordination
will be required for the irrigation meter audit, audit of the utility billing system, and
estimates of fire fighting activities. These additional coordination requirements often
can result in a longer implementation schedule and other issues.
Additionally, clear documentation and exchange of that documentation between the
water shop, and utility billing and engineering is needed to be able to reliably estimate
water losses. This is particularly true of the authorized uses that can be subtracted
from the total distribution system losses.