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CITY OF RENTON
SOUTH 132ND STREET
SEWER EXTENSION PROJECT
WWP-27-3685
SHEET NO.
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LEGEND
SHEET TITLE
'°""' () Stantec -···----
11130 NE 33rd Place, Bellevue WA 98004
phone: (425) 869-9448 www.stantec.com
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RENTON, WASHINGTON !ffl!)57·i',,
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JOHN HOBSON PROJECT ENGINEER
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CONSTRUCTION BJ\SELINE PLAN
SEWER PLAN AND PROFILE
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CITY OF RENTON STD. DETAILS
MISC. DETAILS
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PI.NITING & S01L STABILIZATION PLAN
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SOUTH 132ND STREET
SEWlH EXTENSION PROJECT
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PLANTING & SOIL STABILIZATION PLAN
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PLAN flNG NOTES
Sl-1RUO ~1-'fCffS WILL SE PLANTED ON 4 10 5 ffH CENTERS
IN ORO(R lO REDUCE l,IQIHAI.ITY. A LATE rAll f'LANT
INSTALLAllON SCHEOULE IS RECOt.lMENOEO (OCTOEIER TO
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All. REMAINING BARE SOILS WITI11N THE RESJOl;:AllON AREA WILL
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SOIL STABILIZATION NOTES
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RFN fON
P1no0o,1/Ruad;nq/P,bt,c WoCd llo~l
SOUTH 132ND STREET
SEWER EXTENSION PROJECT
PLANTING & SOIL ST~LllA. TION Pl.AN
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CITY OF RENT(
DEPARTMENT OF COMMUNITY. & ECONOMIC
DEVELOPMENT
MEMORANDUM
Date: March 9, 2016
To: City Clerk's Office
From: Sabrina Mirante
Subject: Land Use File Closeout
Please complete the following information to facilitate project closeout and indexing by the City
Clerk's Office
Project Name: John Stewart Side Sewer Extension
LUA (file) Number: LUA-14-000453, ECF, VAR
Cross-References:
AKA's:
Project Manager: Kris Sorensen
Acceptance Date: April 15, 2014
Applicant: John Hobson, City of Renton
Owner: City of Renton
Contact:
PID Number: 2144800535
ERC Determination: DNS-M Date: May 5, 2014
Anneal Period Ends: May 23. 2014
Administrative Decision: Approved with Conditions Date: May 5, 2014
Anneal Period Ends: May 23, 2014
Public Hearing Date:
Date Appealed to HEX:
By Whom:
HEX Decision: Date:
Anneal Period Ends:
Date Appealed to Council:
By Whom:
Council Decision: Date:
Mylar Recording Number:
Project Description: The applicant, the City of Renton, is requesting Environmental (SEPA)
Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-
inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave S and east
of S Langston Road, from the south. The project location is within the public right-of-way of S
132nd St and across a vacant privately owned parcel (PID 2144800535), from south to north, that
has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel is 52,143
square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on
the vacant property at the southwest corner of the project site, where the 8-inch sewer main will
cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing,
supported on either side of the stream, by large concrete blocks. All nine trees on-site are
proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A
Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer
olantina olan.
Location: West of 8223 S 132nd St
Comments:
ERC Determination Types: DNS -Determination of Non-Significance; DNS-M -Determination of
Non-Significance-Mitigated; DS -Determination of Significance.
STATE OF WASHINGTON, COUNTY OF KING }
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
Linda M Mills, being first duly sworn on oath that she is the Legal
Advertising Representative of the
Renton Reporter
a weekly newspaper, which newspaper is a legal newspaper of
general circulation and is now and has been for more than six months
prior to the date of publication hereinafter referred to, published in
the English language continuously as a weekly newspaper in King
County, Washington. The Renton Reporter has been approved as
a Legal Newspaper by order of the Superior Court of the State of
Washington for King County.
The notice in the exact form annexed was published in regular issues
of the Renton Reporter (and not in supplement form) which was
regularly distributed to its subscribers during the below stated period.
The annexed notice, a:
Public Notice
was published on May 9, 2014.
The full amount of the fee charged for said foregoing publication is
the sum of $98.00.
/
/f:ZlR( lff /lftz..
daM. Mills
Legal Advertising Representative, Renton Reporter
Subscribed and sworn to me this 9th day of May, 2014.
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Kathleen C. Sherman, Notary Public for the State of Washington,
Residing in Buckley, Washington
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NOTICE OF
ENVIRONMENTAL
DETERMINATION
ENVIRONMENTAL
REVIEW COMMffTEE
RENTON, WASHINGTON
The Environmental Review
Committee has issued a Dctcnni-
nation of Non-Significance
(DNS-M) for the following
project under the authority of
the Renton Municipal Code.
132ND Sewer Main Extension
Variance
LUAl4-000453
Location: City of Renton
requested SEPA Review and
Administrative Critical Arca
Variance Review for a 775-lin-
eal foot extension of public 8-
inch sewer main. The project
location is within the public
right-of.way of S 132nd St and
across a vacant pa.reel (PIO
2144800535) with a Class 4
stream and buffer. The sewer
would cross the stream 8 feet
above the stream and will be
contained within an 18·inch
steel casing. 902 sf of stream
buffer will be impacted. Buffer
mitigation is proposed.
Appeals of the DNS-M must be
filed in writing on or before 5:00
p.m. on May 23, 2014, together
with the required fee with: Hear-
ing Examiner, City of Renton,
1055 South Grady Way, Renton,
WA 98057. Appeals to the Ex-
aminer are governed by RMC
4·8-1 l O and more infonnation
may be obtained from the City
Clcrk"s Office, ( 425) 430-6510.
Published in the Renton Reporter
on May 9, 2014. #I05205l.
RECEIPT EG00023995
BILLING CONTACT
John Hobson
City of Renton -Wastewater Utility
1055 S GRADY WAY
RENTON, WA 98057-3232
REFERENCE NUMBER FEE NAME
LUA14-000453 PLAN -Environmental Review
PLAN -Variance
Technology Fee
Printed On: 5/28/2014 Prepared By: Kris Sorensen
TRANSACTION
TYPE
Fee Payment
Fee Payment
Fee Payment
Transaction Date: May 28, 2014
PAYMENT
METHOD
Interoffice Account
Transfer
Interoffice Account
Transfer
Interoffice Account
Transfer
SUBTOTAL
TOTAL
AMOUNT PAID
$1,000.00
$1,200.00
$66.00
$2,266.00
$2,266.00
Page 1 of 1
FINANCE AND INFORMATION SERVICES
DEPARTMENT
DATE:
TO:
FROM:
SUBJECT:
MEMORANDUM
May 28, 2014
Casaundra Commodore, Finance & Information Services
Department
Kris Sorensen
Re: INTERFUND TRANSFER REQUEST
Instructions: Please note that failure to provide all digits will result in processing
delays. All Signatures and correct documentation must be included.
Please prepare the following inter-fund transfer:
D t epar men tCh an!e d
Account Number Project, function, task, sub-task Description
426.465500.018.594. 35 .63 .OOO/U45500 South 132no St Sewer Extension Environmental fee
4 26.465500.018 .594.35 .63 .OOO/U45 500 South 132nd St Sewer Extension Variance fee
4 26.465500.018 .594.35 .63 .OOO/U45500 Technology fee
-
/ A ,f ) Total
*Char2ed Deoartment Authorization*, .,· (/ A/
APPROVAL SIGNATURE: /' ~.,.,,--j, -/1
\._.../" "1
Printed Name _D'-'-a_vi_d_C_hr...c:.is:.cte'-'n"-'s'-'-e-'--n _____________ Date May 28, 2014
CREDIT:
Amount
$1,000.00
$1,200.00
$66.00
$2,266.00
Account Number Project, function, task, sub-task Description Amount
000 .000000 .007.345. 81.04 .000 South 132nd St Sewer Extension Environmental fee $1,000.00
000.000000.007.345.81.16.000 South 132nd St Sewer Extension Variance fee $1,200.00
503.000000.004.322. l 0.00.000 Technology fee $66.00
.
Total $2,266.00
Reason:
Note: Documentation to support this transfer request must be attached and all signatures are required.
Cash Transfer Forrn/Finance/bh Revised 01/09
Billing Invoice EG00023995
4{,55co
GL Number: 42~018.594.35.63
BILLING CONTACT
John Hobson
City of Renton -Wastewater Utility
1055 S Grady Way
Renton, WA 98057-3232
Phone: (425) 430-7279
REFERENCE NUMBER
LUA 14-000453
The applicant, the City of Renton, is requesting Environmental
(SEPA) Review and Administrative Critical Area Variance
Review for a 775 lineal foot extension of public 8-inch sewer
main and associated appurtenances to S 132nd Street, west of
Renton Ave S and east of S Langston Road, from the south. The
project location is within the public right-of-way of S 132nd St
and across a vacant privately owned parcel (PIO 2144800535),
from south to north, that has an unnamed Class 4 stream and
associated critical area buffer. The vacant parcel is 52,143
square feet (1.2 acres), and zoned Residential-14. The
proposed sewer main crosses the stream on the vacant
property at the southwest comer of the project site, where the
8-inch sewer main will cross approximately 8 feet above the
stream and will be contained within an 18-inch steel casing,
supported on either side of the stream, by large concrete
blocks. All nine trees on-site are proposed to be retained.
Approximately 902 square feet of stream buffer area will be
impacted. A Supplemental Stream Study and Stream Buffer
Mitigation Plan are provided with a stream buffer planting plan.
West of 8223 S 132nd St; PIO 2144800535
Department: CED -Planning
AR:
Eden Invoice:
FEE NAME/ GL Number
PLAN -Environmental Review
000.000000.007.345.81.04.000
PLAN -Variance
000.000000.007.345.81.16.000
Technology Fee
503.000000.004.322.10.00.000
SUBTOTAL
TOTAL
Created On: 5/28/2014 11 :30:26AM Prepared By: Kris Sorensen 425-430-6593
Amount Due
$1,000.00
$1,200.00
$66.00
$2,266.00
$2,266.00
Page 1 of 1
RECEIPT EG00023995
BILLING CONTACT
John Hobson
City of Renton -Wastewater Utility
1055 S GRADY WAY
RENTON, WA 98057-3232
REFERENCE NUMBER FEE NAME
LUA 14-000453 PLAN -Environmental Review
PLAN -Variance
Technology Fee
Printed On: 5/28/2014 Prepared By: Kris Sorensen
TRANSACTION
TYPE
Fee Payment
Fee Payment
Fee Payment
Transaction Date: May 28, 2014
PAYMENT
METHOD
nteroffice Account
trransfer
nteroffice Account
trransfer
r;iteroffice Account
ransfer
SUBTOTAL
TOTAL
AMOUNT PAID
$1,000.00
$1,200.00
$66.00
$2,266.00
$2,266.00
Page 1 of 1
FINANCE AND INFORMATION SERVICES
DEPARTMENT
DATE:
TO:
FROM:
SUBJECT:
MEMORANDUM
May 28, 2014
Casaundra Commodore, Finance & Information Services
Department
Kris Sorensen
Re: INTERFUND TRANSFER REQUEST
Instructions: Please note that failure to provide all digits will result in processing
delays. All Signatures and correct documentation must be included.
Please prepare the following inter-fund transfer:
D epartment Ch ar2e d
Account Number Project, function, task, sub-task Description
426.465500.018 .594 .35 .63 .OOO/U45500 South 132"" St Sewer Extension Environmental fee
426.465500.018 .594.35 .63 .OOO/U45500 South 132nd St Sewer Extension Variance fee
4 26.465500.018 .594.35 .63 .OOO/U45500 Technology fee
/ . ,/\ ;f J Total
*Chari>ed Denartment Authorization* . , i/ A/
APPROVALSIGNATURE: / (/ , -./I
-
--'--------',.,)
Printed Name _D_a_vi_d_C_h_r_is_te_n_s_e_n _____________ Date May 28, 2014
CREDIT·
Amount
$1,000.00
$1,200.00
$66.00
$2,266.00
Account Number Project, function, task, sub-task Description Amount
000.000000.007 .345.81.04.000 South 132nd St Sewer Extension Environmental fee $1,000.00
000.000000.007 .345.81.16.000 South 132nd St Sewer Extension Variance fee $1,200.00
503.000000.004.322. l 0.00.000 Technology fee $66.00
Total $2,266.00
Reason:
Note: Documentation to support this transfer request must be attached and all signatures are required.
Cash Transfer Forrn/Finance/bh Revised 01/09
Billing Invoice EG0002399:._ ,;,·r:· .,.S City of.
-----~-"' /:ii --,',(········· .1 ~ s1Il I vIJ
4l,_s-5oo
GL Number: 42~018.594.35.63
BILLING CONTACT
John Hobson
City of Renton -Wastewater Utility
1055 S Grady Way
Renton, WA 98057-3232
Phone: (425) 430-7279
REFERENCE NUMBER
LUA 14-000453
The applicant, the City of Renton, is requesting Environmental
(SEPA) Review and Administrative Critical Area Variance
Review for a 775 lineal foot extension of public 8-inch sewer
main and associated appurtenances to S 132nd Street, west of
Renton Ave S and east of S Langston Road, from the south. The
project location is within the public right-of-way of S 132nd St
and across a vacant privately owned parcel (PIO 2144800535),
from south to north, that has an unnamed Class 4 stream and
associated critical area buffer. The vacant parcel is 52, 143
square feet (1.2 acres), and zoned Residential-14. The
proposed sewer main crosses the stream on the vacant
property at the southwest corner of the project site, where the
8-inch sewer main will cross approximately 8 feet above the
stream and will be contained within an 18-inch steel casing,
supported on either side of the stream, by large concrete
blocks. All nine trees on-site are proposed to be retained.
Approximately 902 square feet of stream buffer area will be
impacted. A Supplemental Stream Study and Stream Buffer
Mitigation Plan are provided with a stream buffer planting plan.
West of 8223 S 132nd St; PID 2144800535
Department: CED -Planning
AR:
Eden Invoice:
FEE NAME/ GL Number
PLAN -Environmental Review
000.000000.007.345.81.04.000
PLAN -Variance
000.000000.007.345.81.16.000
Technology Fee
503.000000.004.322.10.00.000
SUBTOTAL
TOTAL
Created On: 5/28/2014 11 :30:26AM Prepared By: Kris Sorensen 425-430-6593
Amount Due
$1,000.00
$1,200.00
$66.00
$2,266.00
$2,266.00
Page 1 of 1
CITY OP RENTON
DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT -PLANNING DIVISION
AFFIDAVIT OF SERVICE BY MAILING
On the 9 day of May, 2014, I deposited in the mails of the United States, a sealed envelope containing Sepa
documents. This information was sent to:
. . N" r_a''imdieii; : "<•.'.'" :: . .
Agencies See Attached
Owner, applicant, parties of record See Attached
(Signature of Sender): '
'''""\\''''' STATE OF WASHINGTON ) ,:'"'~\.LY ~11111
)SS -~11
COUNTY OF KING )
0
ft.; ~, ~.
--f~ "'O ."' :
I certify that I know or have satisfactory evidence that Sabrina Mirante ~ % o' "•lie. :
signed this instrument and acknowledged it to be his/her/their free and voluntary~f14}flbf1,IS ~d.-iiurposes
;.('I. '•111,\\'"""'"o;: ':'\.o mentioned in the instrument. *4SH\NG
Dated: IJU'tj q. :lot'(
I
Notary (Print): ___ ___./tp'-'-'-'/.,4-.....____,_'.f.:::ew"""--":'::fS~------------
My appointment expires: A-'a u....Y--d-1 :2.D 1 "l
1-V-A 1'1-oooL./S3
template -affidavit of service by mailing
Dept. of Ecology ++
Environmental Review Section
PO Box 47703
Olympia, WA 98504-7703
WSDOT Northwest Region*
Attn: Ramin Pazooki
King Area Dev. Serv., MS-240
PO Box 330310
Seattle, WA 98133-9710
US Army Corp. of Engineers*
Seattle District Office
Attn: SEPA Reviewer
PO Box C-3755
Seattle, WA 98124
Boyd Powers * * *
Depart. of Natural Resources
PO Box 47015
Olympia, WA 98504-7015
KC Dev. & Environmental Serv.
Attn; SEPA Section
35030 SE Douglas St. #210
Snoqualmie, WA 98065
Metro Transit
Senior Environmental Planner
Gary Krledt
201 South Jackson Street KSC-TR-0431
Seattle, WA 98104-3856
Seattle Public Utilities
Jailaine Madura
Attn: $EPA Coordinator
700 Fifth Avenue, Suite 4900
PO Box 34018
Seattle, WA 98124-4018
AGENCY (DOE) LETTER MAILING
(ERC DETERMINATIONS)
WDFW -Larry Fisher*
1775 12th Ave. NW Suite 201
lssaquah1 WA 98027
Duwamish Tribal Office*
4717 W Marginal Way SW
Seattle, WA 98106-1514
KC Wastewater Treatment Division *
Environmental Planning Supervisor
Ms. Shirley Marroquin
201 s. Jackson ST, MS KSC-NR-050
Seattle, WA 98104-3855
City of Newcastle
Attn: Tim McHarg
Director of Community Development
12835 Newcastle Way, Ste 200
Newcastle, WA 98056
Puget Sound Energy
Kathy Johnson,
355 110<> Ave NE
Mailstop EST llW
Bellevue, WA 98004
Muckleshoot Indian Tribe Fisheries Dept.*
Attn; Karen Walter or SEPA Reviewer
39015-172nd Avenue SE
Auburn, WA 98092
Muckleshoot Cultural Resources Program*
Attn: Ms Melissa Calvert
39015172"' Avenue SE
Auburn, WA 98092-9763
Office of Archaeology & Historic Preservation*
Attn: Gretchen Kaehler
PO Box 48343
Olympia, WA 98504-8343
City of Kent
Attn: Jack Pace
Acting Community Dev. Director
220 Fourth Avenue South
Kent, WA 98032-5895
City of Tukwila
Steve Lancaster, Responsible Official
6200 Southcenter Blvd.
Tukwila, WA 98188
*Note: If the Notice of Application states that it is an "Optional DNS", the marked agencies and cities
will need to be sent a copy of the Environmental Checklist, Site Plan PMT, and the Notice of
Application.
**Department of Ecology is emailed a copy of the Environmental Checklist, Site Plan PMT1 & Notice to
the following email address: sepaunit@ecy.wa.gov
***Department of Natural Resources is emailed a copy of the Environmental Checklist, Site Plan PMT,
& Notice the following email address: sepacenter@dnr.wa.gov
template -affidavit of service by mailing
Easy Peel® Labels
Use Avery® Template 5160®
• • < • «•··········
Rebecca Saur
Stantec
11130 NE 33rd Pl, Suite 200
Bellevue, WA 980041465
Etiquettes faciles a peler
Utilisez le gabarit AVERY® 5160®
I
I
I
J
.. -Feed Paper -
Bend along line to
expose Pop-up Edge™
John Stewart
8223 S 132nd St
Renton, WA 98178
• Sens de
chargement
Repllez a la hachure afln de :
reveler le rebord Pop-up"' ;
@ AVERY® 5160® l
Douglas Warne
2125 !st Ave, #2303
Seattle, WA 98124
www.avery.com
1-BOD-GO-AVERY
I
I ...
NOTIJCE
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF NON·S1GN1f1CANCE · MITIGATED jDNS-M)
P05TED TO NOTIF'f INTERESTED PERSONS OF AN ENVIRONMH/TAl ACTION
PftOJECT NAME:
PROJ<CTNUM!E!I,
lll"' -or Mala E>;ten,lan V•n,n"'
WA14-0004S3
LOCATION PIO ll«aM~S
OE50IIPTION: Tho ,pplk:ont, 1M Oty DI 1141nton, Is req11ff1in1 EnYlronrnenlal (SI.PA) -ow
aod Admlnbt.-.Uvo Crttl<>I Anl, v,ri,nco Ro•low for I TIS in .. 11...,1 exton1lan of P•bll< I-Inell,_.., rnoln ond
IIIO<lot.d ,ppu,...nonu, to 5 Hlnd StrHI, WHt ol ll<tnt"" A•• 5 and out of 5 Lanptan Aood, lrum 1'10 .OUlh.
Tho proje<t loutlon Is within tho publl< rl1ht.o!--way of 5 132nd St and ar;rou • YI"""' .,..t.,tely ownod pa,ad
IPIO Zl.44300535), from ,ou\h to nortll, '11>1 hu ,n un.........i CIUI 4 ,tr...m or,d '"<><i•l•d cr1Uc:1l on1, bolhr,
Th• ••cant parul Is St,14l '~"''" h,t 11.l ..:l'dL ar>d '"""d Rnld1ntla~t,I. Tht propo,ed ,..,,, ma"1 <l'OIHI
tho llrHm on the .. cant p"""',ty >< 1he 0<>11t11wosl ......... , Df<he ptol•cl 11to, ,.t,o,. tho Unch ,,wer main wii
,ros,. appr,,•!malol, 8 1ft, •b••• tho nrum or,d wHI bo o:,nt,ln•d .. 1,hlti an ll~n<h >1ul c.o~o11, ••pportod""
ollllor old• <JI tho llrHm, ir, l••I• <<>nawlo blo,:li, . ..il nlno lrft> on·>I!• aro pr,,po1od lo IHI rot>lnod.
App,o .. m,,t..ly 9CJ2 '~""" root of ot,um b•fh, a,u wHI bo lmpotlod. '-S.pplemontol 51r"'m 5••dV •nd Strum
Bullor Mttl1ulon P\an •ro pro,ldod wllh • nr1am blil(" plo,,1fn1 f"on.
THE Cm' OF RENTON ENVIRONMENTAL REVIEW COMMITTJ;E (ERCI HAS OCTERMINED TKAT THE PROPOSED
ACTION DOES NOT llll,VEA SIGNIFICANT .O.OVEFISE IMPACT ON THE !:HVIAONMENT
AppHls of 1he onvln:rnmonlirl d1tormln,1lon mu'1 bt filed In wrltln1 on or bolon, 5:00 p.m. on May 2l,
Z014, t<rpthu with 1111! r~ulrod fee with: 11 .. ,lnk E••mlner, Oly ol Aonton, 10SS South Grody W•Y,
A""ton, WA U051. /1.!>PUI, to tho E .. mlnar aro gc,vomed by City <>I RMC 4-8·110 and lnformatloi,
roprdlnl the appnl pro<HO may b1 ablirlned from tho A1nton dty Cl•rl<'• Offlco, (425) 430.6510.
IF ntE ENVIWNMENTAL DETERMINATION 15 APPEAt10, A PUBl!C HEARING Will aE SET AND ALL PARTIES
NOTIFIED
PLEASE INCLUOETHE PROJECT NUMBER WHEN CALLING FOR PROPER Fl LE IDENTIFICATION.
CERTIFICATION
I, ~s So~-t:,u,r:;u,,, . hereby certify that 3 copies of the above document
~ were posted in _J__ conspicuous places or nearby the described property on
Date: 5/q){'{ Signed:~~ r,
STATE OF WASHINGTON
55
COUNTY OF KING
blic in and for the State of Washington
Notary (Print):
My appointment expires: __ ~fti-t"rtJ't-""'V-:""'~l1---~J'""'~'>-'d-D"-"~l~1.,__ ___ _
1,!
Denis Law c·
_ __:May:or _______ ... J_gl0i:tu (J
May 9, 2014 Community & Economic Development Department
C.E.11 Chip11 Vincent, Administrator
Washington State
Department of Ecology
Environmental Review Section
PO Box 47703
Olympia, WA 98504-7703
Subject: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION
Transmitted herewith is a copy of the Environmental Determination for the following
project reviewed by the Environmental Review Committee (ERC) on May 5, 2014:
SEPA DETERMINATION:
PROJECT NAME:
Determination of Non-Significance Mitigated (DNSM)
132"d Sewer Main Extension Variance
PROJECT NUMBER: LUA14-000453
Appeals of the environmental determination must be filed in writing on or before 5:00
p.m. on May 23, 2014, together with the required fee with: Hearing Examiner, City of
Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are
governed by RMC 4-8-110 and information regarding the appeal process may be
obtained from the City Clerk's Office, (425) 430-6510.
Please refer to the enclosed Notice of Environmental Determination for complete
details. If you have questions, please call me at (425) 430-6593.
For the Environmental Review Committee,
Kris Sorensen
Assistant Planner
Enclosure
cc: King County Wastewater Treatment Division
Boyd Powers, Department of Natural Resources
Karen Walter, Fisheries, Muckleshoot Indian Tribe
Melissa Calvert, Muckleshoot Cultural Resources Program
Gretchen Kaehler, Office of Archaeology & Historic Preservation
Ramin Pazooki, WSDOT, NW Region
Larry Fisher, WDFW
Duwamish Tribal Office
US Army Corp. of Engineers
Renton City Hall • 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
ENVIRONMENTAL (SEPA) DETERMINATION OF NON-SIGNIFICANCE
PROJECT NUMBER:
APPLICANT:
PROJECT NAME:
-MITIGATED (DNS-M)
LUA14-000453
John Hobson, Sewer Utilities Division
132"' Sewer main Extension Variance
PROJECT DESCRIPTION: The applicant, the City of Renton, is requesting Environmental (SEPA)
Review and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer
main and associated appurtenances to S 132nd Street, west of Renton Ave Sand east of S Langston Road, from
the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately
owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated
critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed
sewer main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-
inch sewer main will cross approximately 8 feet above the stream and will be contained within an 18-inch steel
casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are proposed to
be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream
Study and Stream Buffer Mitigation Plan are provided with a stream buffer planting plan.
PROJECT LOCATION:
LEAD AGENCY:
Parcel Identification Number 214480-0535
City of Renton
Environmental Review Committee
Department of Community & Economic Development
The City of Renton Environmental Review Committee has determined that it does not have a probable significant
adverse impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW
43.21C.030(2)(c). Conditions were imposed as mitigation measures by the Environmental Review Committee under
their authority of Section 4-9-070D Renton Municipal Code. These conditions are necessary to mitigate environmental
impacts identified during the environmental review process. Because other agencies of jurisdiction may be involved, the
lead agency will not act on this proposal for fourteen (14) days.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 23, 2014.
Appeals must be filed in writing together with the required fee with: Hearing Examiner, City of Renton, 1055 South
Grady Way, Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and more information may be
obtained from the Renton City Clerk's Office, (425) 430-6510.
PUBLICATION DATE:
DATE OF DECISION:
May 9, 2014
May 5, 2014
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
May 5, 2014
LUA14-000453
132"d Sewer Main Extension Variance
SIGNATURES:
Gregg Zi rma
Public Works Department
~L--v-----
Terry Higashiyama, Administrator
Community Services Department
Date
Date
Mark Peterson, 'Administrator
Fire & Emergency Services
C-£t ,, 's} ,_ .V sl
C.E. "Chip" Vincent, Administrator
Department of Community &
Economic Development
1.-((s /1'-(
r I
Date
Date
Lisa Marie McElrea
From:
Sent:
To:
Subject:
Kris ~~.cnsen
Wednesday, April 09, 2014 11:35 AM
Lisa Marie McElrea
FW: John Stewart SS Extension/ LUA14-000453, ECF, VAR
Hi Lisa -Please add to official file. Thanks, Kris
From: Fisher, Larry D (DFW) [mailto:Larry.Fisher@dfw.wa.gov]
Sent: Wednesday, April 09, 2014 7:50 AM
To: Kris Sorensen
Cc: Karen Walter (KWalter@muckleshoot.nsn.us)
Subject: John Stewart 55 Extension / LUA14-000453, ECF, VAR
Hi Kris:
I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject
project.
A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this
project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings.
Thank you for the opportunity to provide this information.
Larry Fisher
WDFW Area Habitat Biologist
1775 12th Ave NW Suite 201
Issaquah, WA 98027
425-313-5683
FAX 425-427-0570
Cell: 425-449-6790
<'){{}}>< <'){{}}><
1
DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
DETERMINATION OF NON-SIGNIFICANCE-MITIGATED (DNSM)
MITIGATION MEASURES AND ADVISORY NOTES
PROJECT NUMBER:
APPLICANT:
PROJECT NAME:
LUA14-000453
John Hobson, Sewer Utilities Division
132"d Sewer Main Extension Variance
PROJECT DESCRIPTION: The City of Renton is requesting Environmental (SEPA)
Review and Administrative Critical Area Variance Review from Renton Muncipal Code for a 775
lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd
Street, west of Renton Ave S and east of S Langston Road, from the south. The project location
is within the public right-of-way of S 132nd St and across a vacant privately owned parcel (PID
2144800535). The sewer connects with a sewer main along the southerly boundary of the
property and runs north to 132nd. The parcel has an unnamed Class 4 stream and associated
critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres) and zoned Residential-
14. The proposed sewer main crosses the stream on the parcel at the southwest corner of the
project site, where the 8-inch sewer main will cross approximately 8 feet above the stream and
will be contained within an 18-inch steel casing, supported on either side of the stream, by
large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902
square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream
Buffer Mitigation Plan are provided with a stream buffer planting plan.
PROJECT LOCATION:
LEAD AGENCY:
MITIGATION MEASURES:
PID 214480-0535
The City of Renton
Department of Community & Economic Development
Planning Division
l. The applicant shall comply with the conclusions stated in the 132"d Street Sewer Extension
Project, Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette
Associates Environmental Consultants; dated February 4, 2014 (Exhibit 2).
ADIVISORY NOTES:
The following notes are supplemental information provided in conjunction with the
administrative land use action. Because these notes are provided as information only, they are
not subject to the appeal process for the land use actions.
Engineering Review:
Please provide geotechnical report for the subject project that details the groundwater level. It
is also highly recommended to provide the 100 year water surface elevation of the stream
crossing.
Community Services Review
A. Environmental impacts comments: Protect all trees outside the construction limits from
construction damage and soil compaction. Repair damage to trees and shrubs as a result of
construction activities.
Planning:
1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through
Friday unless otherwise approved by the Development Services Division.
2. Commercial, multi-family, new single family and other nonresidential construction activities
shall be restricted to the hours between seven o'clock (7:00) a.m. and eight o'clock (8:00) p.m.,
Monday through Friday. Work on Saturdays shall be restricted to the hours between nine
o'clock (9:00) a.m. and eight o'clock (8:00) p.m. No work shall be permitted on Sundays.
3. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials,
supplies or fluids, operate any equipment, install impervious surfaces, or compact the earth in
any way within the area defined by the drip line of any tree to be retained.
ERC Mitigation Measures and Advisory Notes Page 2 of 2
Denis Law .,--.··_ City o -.'
-----~M:a:yo:, ___ .................
1
C Ji, (~1DJtIDIT1
May 9, 2014
Community & Economic Development Department
C.E. "Ch ip"Vi ncent, Administrator
John Hobson, Sewer Utilities Division
City of Renton
1055 S Grady Way, 5th FL
Renton,WA 98057
,
I .I
SUBJECT: ENVIRONMENTAL (SEPA) THRESHOLD DETERMINATION
132"d Sewer Main Extension Variance, LUA14-000453
Dear Mr. Hobson: _
This letter is written on behalf of the Environmental Review Committee (ERC) to advise
you that they have completed their review of the subject project and have issued a
threshold Determination of Non-Significance'Mitigated with Mitigation Measures.
Please refer to the enclosed ERC Report, for a list of the Mitigation Measures.
Appeals of the environmental determination .must be filed in writing on or b.efore 5:00
p.m. ori May 23, 2014, together with the required ·fee with: Hearing Examiner, City of
_ Renton, 1055 South Grady Way, Renton, WA 98057. Appeals to the Examiner are
governed by RMC 4-8-110 and information regarding the appeal process may be
obtained from the City Clerk's Office, (425} 430-6510.
If the Environmental Determination is appealed, a public hearlng date will be set and all
parties notified.
If you have any further questions, please call me at (425} 430-6593.
For the Environmental Review Committee,
Kris Sorensen
Associate Planner
Enclosure
cc: John Ste·ward / Owner{s)
John Hobson, COR / Applicant
Rebecca Saur,Douglas Warne/ Party(ies) of Record
Renton City Hall • 1055 South Grady Way • Renton, Washington 98057 • rentonwa.gov
NOTICE OF ENVIRONMENTAL DETERMINATION
ENVIRONMENTAL REVIEW COMMITTEE
RENTON, WASHINGTON
The Environmental Review Committee has issued a Determination of Non-Significance (DNS-M)
for the following project under the authority of the Renton Municipal Code.
132ND Sewer Main Extension Variance
LUA14-000453
Location: City of Renton requested SEPA Review and Administrative Critical Area
Variance Review for a 775-lineal foot extension of public 8-inch sewer main. The
project location is within the public right-of-way of 5 132nd St and across a
vacant parcel (PID 2144800535) with a Class 4 stream and buffer. The sewer
would cross the stream 8 feet above the stream and will be contained within an
18-inch steel casing. 902 sf of stream buffer will be impacted. Buffer mitigation is
proposed ..
Appeals of the DNS-M must be filed in writing on or before 5:00 p.m. on May 23, 2014,
together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way,
Renton, WA 98057. Appeals to the Examiner are governed by RMC 4-8-110 and more
information may be obtained from the City Clerk's Office, (425) 430-6510.
Publication Date: May 9, 2014
Account No. 51067
dnsmpub.dot
STATE OF WASHINGTON, COUNTY OF KING }
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
Linda M Mills, being first duly sworn on oath that she is the Legal
Advertising Representative of the
Renton Reporter
a weekly newspaper, which newspaper is a legal newspaper of
neral circulation and is now and has been for more than six months
· x to the date of publication hereinafter referred to, published in
e English language continuously as a weekly newspaper in King
County, Washington. The Renton Reporter has been approved as
a Legal Newspaper by order of the Superior Court of the State of
Washington for King County.
The notice in the exact form annexed was published in regular issues
of the Renton Reporter (and not in supplement form) which was
regularly distributed to its subscribers during the below stated period.
The annexed notice, a:
Public Notice
was published on March 28, 2014,
he full amount of the fee charged for said foregoing publication is
. sum of $112.00.
•
, \
_,'Y<;/{j°i' )J/ 7)-)tf,~ . _,. //,J/::/ ;, /// /''/~".-~
ITnda M. Mills
Legal Advertising Representative, Renton Reporter
Subscribed and sworn to me this 28th day of March, 2014.
-, (' , . . ( .
,1~(1 rt,{,·,· 'L l ",Ytc 'l/u, .. ,~
Kathleen C. Sherman, Notary Public for the State of Washington,
Residing in Buckley, Washington
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:\"OTICE OF
ENVIRONl\1ENTAL
Of:TERl\11:\ATION
ENVIRO:>;MENTAL
REVIEW COW\IITTEE
RENTON, WASHINGTON
The J::nvironmi.:ntal Rcvic,v
Committee has issued a Determi-
nation of Non Significance Miti-
gated (DNS M) for the following
project under the authonty of the
Renton municipal code
Ng Building
LUA 14 000092
Location: 60 SW Sunset Blvd.
The applicant has proposed the
construction of a new 6,090 SF
commercial retail and office
building The pro_iect site is
12,659 Sr: in size and zoned
C/\ Currently a 1,400 sr
building on site would be
removed Access to the site is
proposed via a curb cut from
SW Harris Pl. The proposal
mcludes 8 parkmg stalls. per
RMC 4 4 mm, a minimum of
12 stalls are required for the
proposed useK therefore the
applicant is requestmg a park-
ing modification in order to re-
duce the minimum number of
purking stalls by 4. Right of
way dedication along public
streets would be required as
would installation of planting
strip areas and sidewalks.
There are no critical areas
located on site
Appeals of the DNS M must be
filed in writing on or before
5:00 p.m. on April ll, 2014
Appeals must be filed in writing
together with the required foe
with Hearing Examiner c/o City
Clerk. City of Renton, I 055 S
Grady Way. Renton, WA 98057
Appeals to the I !earing Examiner
are governed by RMC 4 8 110
and more 111format1on mav be ob-
tained from the Rent(m City
Clerk's Office, 425 430 65 l 0.
Publication Date:March 28.2014
in Renton Reporter. #1014702.
STATE OF WASHINGTON, COUNTY OF KING }
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
Linda M Mills, being first duly sworn on oath that she is the Legal
Advertising Representative of the
Renton Reporter
a weekly newspaper, which newspaper is a legal newspaper of
neral circulation and is now and has been for more than six months
· or to the date of publication hereinafter referred to, published in
e English language continuously as a weekly newspaper in King
County, Washington. The Renton Reporter has been approved as
a Legal Newspaper by order of the Superior Court of the State of
Washington for King County.
The notice in the exact form annexed was published in regular issues
of the Renton Reporter (and not in supplement form) which was
regularly distributed to its subscribers during the below stated period.
The annexed notice, a:
Public Notice
was published on March 28, 2014,
he full amount of the fee charged for said foregoing publication is
sum of $147.00.
F • ,-/ ·1· )J Y/',£,. ,.· 1.. .. . .·,. ,. ,.,., .,.,. , ~< ,,..., ',.,LJ..>, .,..,.,. ,..,
· Linda M. Mills
Legal Advertising Representative, Renton Reporter
Subscribed and sworn to me this 28th day of March, 2014.
-. .< ... , (' (;· ! r.{ I I, Li,,,, , .. J fr i ,10 ci'.,;_
Kathleen C. Sherman, Notary Public for the State of Washington,
Residing in Buckley, Washington
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NOTICE OF
ENVIRO'.\MENTAL
DETERMINATIO'.\
1<:NVIRON!\1ENTAL
REVIEW COMJ\.IITTEE AND
PUBLIC II EARING
RENTON, WASIIINGTON
The Environmental Review
Committee has issued a Determi-
nation of Non Significance Miti-
gated (DNS M) for the following
proJcct under the authority of the
Renton municipal code
CHILD School
LlJA 14 000203
Location: 2640 Benson RJ S
The applicant is requesting SE-
PA. Site Plan and Hearing Ex-
aminer Conditional Use Permit
Chiklrens Institute fi:}r Leaming
Differences (Cll!LD) to be
relocated to 2640 Benson Rd.
S. The project would remodel a
former church and add a 2,239
SF modular one storv buildim.!
to accommodate -the ne;
school The former l 8.469 SF
church building would be re-
modeled for school classrooms,
kitchen, and staff and student
support areas including lX:Cu-
pation, speech. and language
therapy rooms. Other improve-
ments include a children's play
area. added parking spaces,
landscaping. nx:kery. and street
improvements. Drainage. Geo-
I. "'1 :if~C.)" f>,..R t' "'.Jl'•J' / ~-.,,., '\ ~ ~ ::.r: ;:~,ct () % z. ,:,
::: 1-§:J 4!'. • ~ ~ 0 ~ ~d.~0 .,, ~ Er--E ~ 'I,, -:;tJ PU~" ..._(off C!J E 1 "11 n_,--= ~ = 1 1,, 4'\~.;::--.,.:_7 ,, lj4 ~ , ........... c;-' ::
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technical. and Traffic Impact
studies are provided. The site 1s
located in the R 8 zone and is
175.111 SF in size. Steep
slopes arc located on site. Over
150 trees arc to remain
Vehicular access would he off
Benson Rd S and an emergen-
cy fire access would be kept
from S 27th St. A modification
1s requested from street
improvemems along S 27th
Street.
Appeals of the D~S? M must
be filed in writing on or before
5:00 p.m. on April 11, 2014
Appeals must he filed in wntmg
together with the required t'ee
with: Hearing Examiner c/o City
Clerk. City of Renton. 1055 S
Grady WaY, Renton, WA 98057.
Appeals to the Hemmg E-xammer
are governed by RMC 4 8 110
and more information may be ob-
tained from the Renton Cit\-
Clerk's ()ffice, 425 430 6510 -
A Public Hearing will be held by
the llearing Examiner in the
Council Chambers. Cit\' llall, on
April 15, 2014 at 10:00 am to
consider the Site 1->lan lf the
DNS M is appealed, the appeal
will be heard as parl ur this
public hearing Interested parties
arc invited to attend the public
hearing.
Puhlicat1on fJate:March 28, 2014
in Rentnn Reporter. #1014720.
STATE OF WASHINGTON, COUNTY OF KING }
AFFIDAVIT OF PUBLICATION
PUBLIC NOTICE
Linda M Mills, being first duly sworn on oath that she is the Legal
Advertising Representative of the
Renton Reporter
a weekly newspaper, which newspaper is a legal newspaper of
neral circulation and is now and has been for more than six months
· or to the date of publication hereinafter referred to, published in
_ e English language continuously as a weekly newspaper in King
County, Washington. The Renton Reporter has been approved as
a Legal Newspaper by order of the Superior Court of the State of
Washington for King County.
The notice in the exact form annexed was published in regular issues
of the Renton Reporter (and not in supplement form) which was
regularly distributed to its subscribers during the below stated period.
The annexed notice, a:
Public Notice
was published on March 28, 2014,
· 'he full amount of the fee charged for said foregoing publication is
• sum of $101.50.
/
/ 0'/itl:( ,1? Jllr)f1--
Linda M. Mills
Legal Advertising Representative, Renton Reporter
Subscribed and sworn to me this 28th day of March, 2014.
/J (' -:t-, (, . . / ' \/ / ft'. 't /LLL<.' I'>-l. ....__J Lt: ~ I }i .Ci~
Kathleen C Sherman, Notary Public for the State of Washington,
Residing in Buckley, Washington
·,
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NOTICE OF
ENVIROMIENTAL
DETERMl~ATIO',
ENVIRO:\MENTAL
RE\'IF:W f:Ol\11\11TTEE
RENTON, WASHINGTO:\
The Environmental Review
Committee has issued a Determi-
nation of Non Significance Miti-
gated (DNS Ml for the followmg
project under the authority of the
Renton municipal code
Sierra (Jomes Variance
LUAIJOOl694
Location: 5400 block of NE
I 0th St. The applicant is
requesting Sf:PA review and
approval for a Variance from
RMC 4 2 110. regulating front
yard setbacks R-4 zone. The
applicant is proposing a 20 fhot
front yard setback where a 30
foot front yard setback is
required per code. due to
the presence of a Category 2
Wetland on site A portion of
the proposed house would en-
croach into the wetland buffer.
HullCr avcragmg for a portion
of the site ts proposed, with a
2: I butlCr enhancement ratio to
accommodate the construction
of the home.
Appeals of fht DNS M must
be filed in writing on or before
5:00 p.m. on April II, 2014.
Appeals must be filed in v.·riting
together with the required fee
with· Hearing Examiner c/o City
Clerk. City of Renton, 1055 S
Grady Way. Renton. WA 98057
Appeals to the I [earing Examiner
are governed by RMC 4 8 110
and more information may be
obtained from the Renton City
Clerk "s Office. 425 430 6510.
Publication Date:March 28, 2014
in Renton Rcportcr.111014694.
t.. r• . City of, . .
___ __.__.. 1 1~ ~ I l I (j: rJ
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE· MITIGATED {DNS-M)
POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION
PROJECT NAME:
PROJECT NUMBER:
LOCATION:
132"d Sewer Main Extension Variance
LUA14-000453
PID 214480-0535
DESCRIPTION: The applicant, the City of Renton, is requesting Environmental (SEPA) Review
and Administrative Critical Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and
associated appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston Road, from the south.
The project location is within the public right-of-way of S 132nd St and across a vacant privately owned parcel
{PID 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer.
The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses
the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will
cross approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on
either side of the stream, by large concrete blocks. All nine trees on-site are proposed to be retained.
Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream
Buffer Mitigation Plan are provided with a stream buffer planting plan.
THE CITY. Of;,BINTON ENYIRONMENTAL REVIEW COMMITIEE (ERCJ_HAS DETERMINED THAT THE PROPOSE.[)
ACTIOffbOES NOT HA VEA SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT. ..
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on May 23,
2014, together with the required fee with: Hearing Examiner, City of Renton, 1055 South Grady Way,
Renton, WA 98057. Appeals to the Examiner are governed by City of RMC 4-8-110 and information
regarding the appeal process may be obtained from ~he Renton City Clerk's Office, {425) 430-6510.
IF THE ENVIRONMENTAL DETERMINATION IS APPEALED, A PUBLIC HEARING Will BE SET AND All PARTIES
NOTIFIED.
FOR FURTHER INFORMATION, PLEASE CONTACT THE CITY OF RENTON, DEPARTMENT OF
COMMUNITY & ECONOMIC DEVELOPMENT AT (425) 430-7200.
DO NOT REMOVE THIS NOTICE WITHOUT PROPER AUTHORIZATION
PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IDENTIFICATION.
D.EPARTMENT OF COMMU Y • r¢ Cityof,
------r(P Cl r(·· fl AND ECONOMIC DEVELOPMENT -·~~---U __
ENVIRONMENTAL REVIEW COMMITTEE REPORT AND
ADMINISTRATIVE VARIANCE REPORT & DECISION
ERC MEETING DATE:
Project Number:
Project Name:
Project Manager:
Owner of Parcel
214480-0535 with
utility easement:
Owner of 132nd Right-
of-Way
Applicant:
Contact:
Project Location:
Project Summary:
Exist. Bldg. Area SF:
May 5, 2014
LUA14-000453, V-A, ECF
132"ct Sewer Main Extension Variance
Kris Sorensen, Associate Planner
John Stewart
8223 S 132"ct St
Seattle, WA 98178
City of Renton
1055 S Grady Way, 5th Floor
Renton, WA 98057
John Hobson, Sewer Utilities Division
City of Renton
1055 S Grady Way, 5th Floor
Renton, WA 98057
Rebecca Saur
Stantec Consulting Services, Inc
11130 NE 33rd Pl, Suite 200
Bellevue, WA 98004
Parcel Identification Number 214480-0535
The City of Renton is requesting Environmental (SEPA) Review and
Administrative Critical Area Variance Review from Renton Muncipal Code for a
775 lineal foot extension of public 8-inch sewer main and associated
appurtenances to S 132nd Street, west of Renton Ave S and east of S Langston
Road, from the south. The project location is within the public right-of-way of S
132nd St and across a vacant privately owned parcel (PID 2144800535). The
sewer connects with a sewer main along the southerly boundary of the
property and runs north to 132nd. The parcel has an unnamed Class 4 stream
and associated critical area buffer. The vacant parcel is 52,143 square feet (1.2
acres) and zoned Residential-14. The proposed sewer main crosses the stream
on the parcel at the southwest corner of the project site, where the 8-inch
sewer main will cross approximately 8 feet above the stream and will be
contained within an 18-inch steel casing, supported on either side of the
stream, by large concrete blocks. All nine trees on-site are proposed to be
retained. Approximately 902 square feet of stream buffer area will be impacted.
A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided
with a stream buffer planting plan.
N/A Proposed New Bldg. Area (footprint):
Proposed New Bldg. Area (gross):
N/A
N/A
City of Renton Deportment of Commu i Economic Development fRCondA 1 istrative Variance Report & Dedsion
LUA14-000453, V-A, ECF 132ND SEWER MAIN EXTENSION VARIANCE
Report of May 5, 2014 Page 2 of 19
Site Area: 9,500 sf Total Building Area GSF: N/A
STAFF
RECOMMENDA T/ON:
Staff Recommends that the Environmental Review Committee issue a
Determination of Non-Significance -Mitigated (DNS-M}.
Project Location Map
PART ONE: PROJECT DESCRIPTION/ BACKGROUND
A. EXHIBITS:
Exhibit 1:
Exhibit 2:
Exhibit 3a:
Exhibit 3b:
Exhibit 4:
Exhibit 5:
Exhibit 6:
Exhibit 7:
Exhibit 8:
Exhibit 9:
Exhibit 10:
Exhibit 11:
--------------------
Staff Report (dated May 5, 2014)
132"d Street Sewer Extension Project, Supplemental Stream Study and Stream Buffer
Mitigation Plan; Prepared by Grette Associates Environmental Consultants; dated
February 4, 2014
Appendix A: Project Site Plan; 132"d Street Sewer Extension Project, Supplemental
Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates
Environmental Consultants; dated February 4, 2014
Appendix B: Mitigation Plan (and Stream Buffer Planting Plan); 132"d Street Sewer
Extension Project, Supplemental Stream Study and Stream Buffer Mitigation Plan;
Prepared by Grette Associates Environmental Consultants; dated February 4, 2014
Zoning Map
Aerial Photo
Project Area Site Plan & Elevation Drawing
Environmental Checklist
City of Renton Maps -Sanitary Sewer System Lines, Printed May 2, 2014
Washington Department of Fish and Wildlife Comment -Hydraulic Project Approval
City of Renton Long-Range Wastewater Management Plan of 2010
Advisory Notes/ Review Comments
City of Renton Department of Commw , Economic Development ERCandA istrotive Variance Report & Decision
WA14-000453, V-A, ECF 132ND SEWER MAIN EXTENSION VARIANCE
Report of May 5, 2014
B. GENERAL INFORMATION:
1. Owner of Record, Parcel 214480-0535:
2. Owner of 132"d Right-of-Way:
3. Zoning Designation:
4. Comprehensive Plan Land Use
Designation:
5. Existing Site Use:
6. Neighborhood Characteristics:
Page 3 of 19
John Stewart; 8223 S 132"d St; Seattle WA 98178
City of Renton
Residential -14 dwelling units per acre (R-14) and
Residential -8 dwelling units per acre (R-8)
Residential Multi-family (RMF) and Residential
Single Family
Vacant
North:
East:
South:
West:
Garden and Nursery Business (R-14}
Single-family Residential (R-14}
Single-family Residential (R-10}
Single-family Residential (R-10}
7. Access:
8. Site Area:
C. HISTORICAL/BACKGROUND:
Action
Comprehensive Plan
Zoning
Annexation
D. PUBLIC SERVICES:
Land Use File No.
N/A
N/A
N/A
S. 132"d St
53,143 sf
Ordinance No.
5484
5484
5484
1. Utilities: The project is installation of new sewer pipes by the City of Renton.
Date
10/18/2009
10/18/2009
10/18/2009
2. Streets: South 132"d St abuts the northern property line of the private parcel through which the
sewer main will be extended.
3. Fire Protection: Fire and emergency services would be provided by the City of Renton Fire
Department.
I PART TWO: ENVIRONMENTAL REVIEW
In compliance with RCW 43.21C.240, the following environmental (SEPA) review addresses only those
project impacts that are not adequately addressed under existing development standards and
environmental regulations.
City of Renton Department of Communir · & Economic Development ERC and Adr1inistrative Variance Report & Decision
132ND SEWER MAIN EXTENSION VA~ :E .;...-------~-----LUA14-00~4_53, V-A, ECF
Report of May 5, 2014 Page 4 of 19
A. ENVIRONMENTAL THRESHOLD RECOMMENDATION
Based on analysis of probable impacts from the proposal, staff recommends that the Responsible
Officials:
Issue a DNS-M with a 14-day Appeal Period.
B. MITIGATION MEASURES
1. The applicant shall comply with the conclusions stated in the 132"d Street Sewer Extension Project,
Supplemental Stream Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates
Environmental Consultants; dated February 4, 2014 (Exhibit 2).
C. ENVIRONMENTAL IMPACTS
The Proposal was circulated and reviewed by various City Departments and Divisions to determine
whether the applicant has adequately identified and addressed environmental impacts anticipated to
occur in conjunction with the proposed development. Staff reviewers have identified that the proposal
is likely to have the following probable impacts:
1. Earth
Impacts: The proposal is to create an extension of sewer main approximately 338 linear feet north to
south and at the northern extension extend the pipe approximately 436 east to west within the 132"d
Street right-of-way. The majority of the 8-inch wastewater pipe would be underground with the
exception of the crossing of a Class 4 stream, where temporary grading would occur to install part of
the extension that will be above the stream where the ground elevation is lower in elevation. There is
S8 feet of pipe that would daylight across the Class 4 stream and associated stream buffer.
Approximately 902 square feet of the stream's associated buffer would be temporarily impacted
through the proposed project construction. The proposal would limit excavation, grading, and clearing
limits within the stream buffer to 7.5 feet on either side of the centerline of the 8-inch sanitary sewer
line.
Machinery would be used for trenching, clearing, and other related construction activity to install two
supports for the daylit pipe and installation of the pipe and related casing. Temporary grading oft he
site would occur during construction and the existing grade would be re-established as part of the
project. Imported and approved crushed gravel or foundation rock may be utilized when necessary to
support new facility structures. All vegetation within the areas proposed for excavation would be
mechanically removed and disposed of. Native soil material would be used as backfill when possible.
All excavated materials not utilized as backfill as well as displaced materials resulting from trenching
activities would be exported to an approved disposal site. Impacts to the stream and the associated
buffer are anticipated to be temporary as the only impacts would be during construction
Mitigation Measures: No further mitigation required.
Nexus: Nexus: Not applicable.
City of Renton Department of Communit" & Economic Development ERC and Adf'linistrative Variance Report & Decision
132ND SEWER MAIN EXTENSION VAJ; :E LUA14-000453, V-A, ECF -------------~ Report of May 5, 2014 Page 5 of 19
2. Water
a. Wetland, Streams, Lakes
Impacts: A Supplemental Stream Study and Stream Buffer Mitigation Plan for the 132"d Street Sewer
Extension Project, was prepared by Grette Associates Environmental Consultants, dated February 4,
2014. The study states that a Class 4 stream is located on the private parcel (PID 2144800535) owned
by John Stewart (Exhibit 2). The city has a utility easement on the private parcel. The Stewart owned
parcel with the stream is currently undeveloped, primarily pasture with trees and low-canopy
vegetation around the stream and buffer areas. The site where the stream is located has a gradual
south facing slope of approximately 14%, with steeper slopes along the stream bank, ranging from 28%
on the left bank of the stream, and 58% on the right bank of the stream.
The existing vegetation outside of the pasture area consists of a forested vegetation community
dominated by Himalayan blackberry, red elderberry, salmonberry, red alder and black cottonwood.
Non-native invasive species on-site include Himalayan blackberry, English holly, English ivy, bamboo
and magnolia primarily along the western boundary of the subject site. The existing stream buffer
likely provides moderate wildlife habitat function for small mammal foraging and cover, passerine and
raptor foraging, and amphibian foraging, breeding, and refuge. Vegetation specifically within the
stream buffer area generally consists of red alder, black cottonwood, and red cedar for trees, with the
scrub-shrub lower canopy dominated by blackberry, red elderberry, salmon berry, and magnolia. Buffer
groundcover is sparse with occasional sword fern.
In order to allow the extension of the sewer through the private property and to the 132".d right-of-
way, the applicant is proposing to underground the majority of the new sewer line with a daylit portion
within the Class 4 stream 35-foot buffer. Work is proposed in the buffer, and the Critical Areas
Ordinance of the city requires a Supplemental Stream Study and Stream Buffer Mitigation Plan where
work would be done in addition to an Administrative Variance to allow the work.
Adverse impacts were analyzed as part of the stream buffer mitigation plan (Exhibit 2) and adverse
impacts would not likely occur as a result of the temporary work within the buffer area where the
sewer pipe would enter the ground on either side of the stream. The area where the pipe will extend
from the soil surface are approximately four square feet in total size. An area within the buffer would
be cleared of vegetation and graded down for the pipe placement, and regarded to the existing grade.
Following the pipe installation and regarding, new plantings will be installed consisting of native
Western Washington species in a denser planting regimen than exists on site currently. Accord int to
the provided stream study, the replacement of native species at a denser coverage than the existing
native and non-native plants would most likely provide greater hydrologic function during seasonally
heavy rain events than what currently exists. The proposed denser native groundcover would most
likely filter out sediments and toxins from stormwater. Additionally, the daylit pipe that spans the
stream would most likely not adversely affect stream or stream buffer function as it would be elevated
above the stream and make a small entry into either side of the stream's buffer area, becoming
underground at those entries. Impacts to the stream and the associated buffer are anticipated to be
temporary as the only impacts would be during construction.
City of Renton Deportment of Communi'" & Economic Development ERC and Adf'linistrotive Variance Report & Decision
132ND SEWER MAIN EXTENSION VAR 'E LUA14-000453, V-A, ECF ... -~~~~~~~~~~~~--
Report of May 5, 2014 Page 6 of 19
Mitigation Measures:
1. The applicant shall comply with the 132nd Street Sewer Extension Project, Supplemental Stream
Study and Stream Buffer Mitigation Plan; Prepared by Grette Associates Environmental
Consultants; dated February 4, 2014 (Exhibits 2, 3, and 4).
Nexus: SEPA Environmental Regulations, RMC 4-3-050 Critical Areas.
3. Utilities
Impacts: The proposed sewer main extension consists of 8-inch PVC pipe primarily undergrounded. For
the portion of the pipe proposed to be daylighted, the pipe would be encased within an 18-inch steel
casing. The north to south route across the private parcel is roughly 338 linear feet, with 58 of those
linear feet being the proposed daylighted extension. Within the 132nd right-of-way, the proposal is of
approximately 436 linear feet underground.
Mitigation Measures: No further mitigation required.
Nexus: Nexus: Not applicable.
D. COMMENTS OF REVIEWING DEPARTMENTS
The proposal has been circulated to City Department and Division Reviewers. Where applicable, their
comments have been incorporated into the text of this report and/or "Advisory Notes to Applicant."· ··
,/ Copies of all Review Comments are contained in the Official File and may be attached to this
report.
PART THREE: ADMINISTRATIVE VARIANCE REVIEW
A. DEPARTMENT ANALYSIS:
1. Compliance with ERC Conditions
The applicant shall comply with the 2 SEPA mitigation measures.
2. Staff Review Comments
Representatives from various city departments have reviewed the application materials to identify
and address issues raised by the proposed development. These comments are contained in the
official file and the essence of the comments has been incorporated into the appropriate sections
of this report and the Departmental Recommendation at the end of this report.
3. Consistency with Variance Criteria
Section 4-9-2508.10, "Special Review Criteria -Public/Quasi-Public Utility or Agency Altering -
Stream/Lake or Wetland Regulations," lists 10 criteria that the Planning Director is asked to
consider, along with all other relevant information, in making a decision on an Administrative
Variance application. These include the following:
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The Planning Director shall have authority to grant an administrative variance upon making a
determination, in writing, that the conditions specified below have been found to exist:
a. Public policies have been evaluated and it has been determined by the Department
Administrator that the public's health, safety, and welfare is best served;
The Renton Comprehensive Plan policies related to wastewater have been evaluated. The area
where the sewer extension is being provided is zoned for single-family and multi-family
development and the much of this area of Renton does not currently have sewer provided, as
many existing homes are hooked up to individual septic service. The policies and objectives
below were part of this evaluation.
• Objective U-A: Provide an adequate level of public utilities in response to and consistent
with land use, protection of the environment, and annexation goals and policies.
• Objective U-B: Provide and maintain safe, reliable and adequate utility facilities and services
for the City's current and future service area to meet peak-anticipated demands of the City
in an efficient, economic, and environmentally responsible manner.
• Policy U-13. Coordinate the extension of utility services with expected growth and
development.
• Policy U-55. Ensure and encourage the use of the sanitary sewer system within urban areas
in a manner consistent with land use and environmental protection goals and policies.
• Policy U-58. Adequate sewer service capacity should.be assured prior to the approvalof any
new development application (e.g. short plat, long plat, multifamily, commercial, and
industrial development).
The proposal additionally meets the Renton Critical Areas Ordinance related code requirements
for both the Approval of Stream Mitigation Plan and Alterations of Streams or Associated
buffers for Utility projects. The Critical Areas Ordinance requires a supplemental stream study
and stream buffer mitigation plan, per RMC 4-3-050.L.ii, as alterations of the on-site stream's
buffer would be altered through the proposal and as impacts are identified within the stream's
buffer area.
Approval of Stream Mitigation Plan, RMC 4-3-050.l.ii, "When Supplemental Stream or Lake
Study is Required" and "When Stream or Lake Mitigation Plan is Required," were used in
evaluating the report. The code text follows with staff comments in the right column:
Code Text Staff Comment
b. When Supplemental Stream or Lake Study is Required: The Supplemental Study required.
applicant shall be required to conduct a supplemental stream or lake
study per RMC 4-8-120 if a site contains a water body or buffer area
and changes to buffer requirements or alterations of the water body
or its associated buffer are proposed, either administratively or via a
variance request.
c. When Stream or Lake Mitigation Plan is Required: The applicant Impacts are identified, a
shall be required to conduct a stream or lake mitigation plan per RMC mitigation plan is required.
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~ -------
4-8-120 if impacts are identified within a supplemental stream or lake
study. The approval of the stream or lake mitigation plan by the
Administrator shall be based on the criteria located in subsection
L3c(ii) of this Section.
i. Timing of Mitigation Plan -Final Submittal and Commencement: Final mitigation plan submitted
When a stream or lake mitigation plan is required, the applicant shall (Exhibit 2).
submit a final mitigation plan for the approval of the Administrator
prior to the issuance of building or construction permits, whichever
comes first. The applicant shall receive written approval of the final
mitigation plan prior to commencement of any mitigation activity.
ii. Criteria for Approval of Stream or Lake Mitigation Plan for Approval criteria reviewed in the
Alterations of Streams and Lakes or Associated Buffers: In order to boxes below.
approve a stream or lake mitigation plan the Administrator shall find
that the plan demonstrates compliance with the following criteria:
(a) Mitigation Location: Mitigation location shall follow the
preferences in subsections L3c(ii)(a)(l) to (4) of this Section. Basins and
subbasins are indicated in subsection Q of this Section, Maps:
(1) On-Site Mitigation: On-site mitigation is required unless a finding On-site mitigation is required
is made that on-site mitigation is not feasible or desirable; and proposed.
(2) _Off~Site Mitigation within Same Drainage Subbasin as Subject No off-site mitigation not
Site: Off-site mitigation may be allowed when located within the required.
same drainage subbasin as the subject site and if it achieves equal or
improved ecological functions over mitigation on the subject site;
(3) Off-Site Mitigation within Same Drainage Basin within City No off-site mitigation not
Limits: Off-site mitigation may be allowed when located within the required.
same drainage basin within the Renton City limits if it achieves equal
or improved ecological functions within the City over mitigation
within the same drainage sub basin as the project;
(4) Off-Site Mitigation within the Same Drainage Basin Outside the No off-site mitigation not
City Limits: Off-site mitigation may be allowed when located within required.
the same drainage basin outside the Renton City limits if it achieves
equal or improved ecological functions over mitigation within the
same drainage basin within the Renton City limits and it meets City
goals.
(bl Mitigation Type: Types of mitigation shall follow the preferences in Review of preferences in the
subsections L3c(ii)(b)(l) to (4) of this Section: boxes below.
(1) Daylighting (returning to open channel) of streams or removal of Existing stream is daylighted as
manmade salmonid migration barriers; existing and will stay the same.
No salmonids are present in
Class 4 streams.
(2) Removal of impervious surfaces in buffer areas and improved No impervious surfaces exist in
buffer area currently. Two
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biological function of the buffer; cement blocks are proposed to
support the above stream pipe
crossing, and one of them (the
easterly) would be located
within the 35-foot buffer. The
support is 4-foot wide, 1.5-foot
deep, by 2-feet in height and
would be an added impervious
surface within the buffer.
Additionally, the daylighted pipe
and casing would create an
aerial impervious surface not on
the ground. The addition of
impervious surface is included in
this variance request.
(3) In-stream or in-lake mitigation as part of an approved watershed No in-stream work proposed.
basin restoration project;
(4) Other mitigation suitable for site and water body conditions that See subsection 'e' below.
meet all other provisions for a mitigation plan. Equivalency or greater is met
through proposal.
In all cases, mitigation shall provide for equivalent or greater
biological functions per subsection L3c(ii)(e) of this Section.
· (c) Contiguous Corridors: Mitigation sites shall be Jocated to preserve Mitigation is on-site, at area
or achieve contiguous riparian or wildlife corridors to minimize the where pipe exits and enters the
isolating effects of development on habitat areas, so long as mitigation ground within the buffer.
of aquatic habitat is located within the same aquatic ecosystem as the
area disturbed; and
{d} Non-Indigenous Species: Wildlife or fish species not indigenous to No wildlife or fish species would
the region shall not be introduced into a riparian mitigation area be introduced. Plantings would
unless authorized by a State or Federal permit or approval. Plantings not consist of non-native plants,
shall be consistent with subsection L6c of this Section; and see subsection below,
11 Restrictions and Maintenance/! ..
(e} Equivalent or Greater Biological Functions: The Administrator shall The proposed mitigation plan,
utilize the report "City of Renton Best Available Science Literature page 7 of Exhibit 2, would
Review and Stream Buffer Recommendations" by AC Kindig & provide greater functional value
Company and Cedarock Consultants, dated February 27, 2003, unless than what exists where non-
superseded with a City-adopted study, to determine the existing or native vegetation would be
potential ecological function of the stream or lake or riparian habitat replaced with native plantings
that is being affected. Mitigation shall address each function affected that will additionally reduce
by the alteration. Mitigation to compensate alterations to stream/lake surface water runoff and filter
areas and associated buffers shall achieve equivalent or greater out sediments and toxins.
biologic and hydrologic functions and shall include mitigation for
adverse impacts upstream or downstream of the development
proposal site. No net loss of riparian habitat or water body function
shall be demonstrated; and
(f} Minimum Mitigation Plan Performance Standards: See Subsection This is a City project, and as
such, no additional funds are
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F8 of this Section. needed because the failure
would be supported in the City
general fund or by wastewater
utility funds.
(g) Additional Conditions of Approval: The Administrator shall Mitigation measures for
condition approvals of activities allowed within or abutting a proposal are provided as part of
stream/lake or its buffers, as necessary to minimize or mitigate any the buffer mitigation plan.
potential adverse impacts. Conditions may include, but are not limited These measures are listed as
to, the following: part of the staff recommended
decision.
(1) Preservation of critically important vegetation and/or habitat Recommended conditions are:
features such as snags and downed wood; Clearly marked work limits;
disposal of existing vegetation
(2) Limitation of access to the habitat area, including fencing to deter off-site; BMPs used to minimize
unauthorized access; erosion and prevent sediment
runoff; No equipment to extend
(3) Seasonal restriction of construction activities; and outside the 15-foot wide sewer
easement; planting in buffer
(4) Establishment of a duration and timetable for periodic review of area immediately installed once
mitigation activities. final grade is achieved; plant
installation performed as
outlined in mitigation plan
(Exhibit 2); Plant materials must
be native to Western
Washington (no hybrids
allowed); and required
Compliance report within 60
days of restoration.
{h} Based on Best Available Science: The applicant shall demonstrate Exhibit 2 provides an Impact
that the mitigation is based on consideration of the best available Evaluation on page 6. The
science as described in WAC 365-195-905; or where there is an proposed activity area does not
absence of valid scientific information, the steps in RMC 4-9-250F are currently provide quality buffer
followed. function due to invasive
vegetation and previous
alterations. The proposal "will
not result in a net-loss" of
stream buffer function (page 6).
iii. Performance Surety: The Administrator shall require a This is a city project, as such no
performance surety to ensure completion and success of proposed additional funds are needed
mitigation, per subsection G of this Section and RMC 4-1-230. because the failure would be
supported by the general fund
or wastewater utility funds.
iv. Alternative Mitigation: The mitigation requirements set forth in Alternative mitigation is not
this subsection L3 may be modified at the Administrator's discretion if required.
the applicant demonstrates that improved habitat functions, on a per
function basis, can be obtained in the affected sub-drainage basin as a
result of alternative mitigation measures.
6. Stream or Lake Buffer Use Restrictions and Maintenance: Any
activity or proposal subject to this subsection L shall comply with the
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following standards within required buffer areas:
a, Preservation of Native Vegetation: Existing native vegetation Native vegetation and trees are
shall be preserved to the extent possible, preferably in not being impacted within
consolidated areas. buffer area except for the an
area of roughly 902 sf.
b. Revegetation Required: Where water body buffer Revegetation is required and is
disturbance has occurred in accordance with exemption or proposed (Exhibit 2).
development permit approval or other activities, revegetation
with native vegetation shall be required.
c, Use of Native Species: When revegetation is required, Native species, not hybrids,
approved native species, or other appropriate species from Western Washington are
naturalized to the Puget Sound region shall be used. A variety of being proposed for plantings in
species shall be used which serve as food or shelter from the buffer area disturbed as part
climatic extremes and predators, and as structure and cover for of the proposed project.
reproduction and rearing of young.
d. Removal of Noxious Species: When required as a condition of Non-native plants within the
approval, noxious or undesirable species of plants shall be buffer work area will be
removed or controlled so as to not compete with native removed from the site.
vegetation.
e. Impervious Surface Restrictions: Where impervious surfaces No impervious surface area
exist in buffer areas, such impervious surfaces shall not be currently exists within the buffer
increased or expanded within the buffer area. The extent of area. Two cement blocks are
impervious surfaces within the buffer area may only be proposed to support the above
rearranged if the reconfiguration of impervious surfaces and stream pipe crossing, and one of
restoration of prior surfaced areas is part of an enhancement them (the easterly) would be
proposal that improves ecological function of the area protected located within the 35-foot
by the buffer. buffer. The support is 4-foot
wide, 1.5-foot deep, by 2-feet in
height and would be an added
impervious surface within the
buffer. Additionally, the
daylighted pipe and casing
would create an aerial
impervious surface not on the
ground.
Criteria for Permit Approval-Class 2 to 4 standards are as follows, per RMC 4-3-0SOL.7:
Code Text Staff Comments
7. Criteria for Permit Approval -Class 2 to 4: Permit approval for
projects on or near regulated water bodies shall be granted only if
the approval is consistent with the provisions of this subsection L,
and complies with the following:
a. Creation of Native Growth Protection Areas Required: As a A future land use application for
condition of any approval for any development permit issued the private parcel with the
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pursuant to this Section, the property owner shall be required to stream would require as a
create a native growth protection area containing the stream/lake condition of approval the,
area and associated buffers based upon field investigations creation of native growth
performed pursuant to subsection E4 of this Section; and protection area at minimum.
b. At least one of the following conditions must apply:
i. A proposed action meets the standard provisions of this No net loss standard is met as
Section and results in no net loss of regulated riparian area or proposed in the buffer
shoreline ecological function in the drainage basin where the mitigation proposal (Exhibit 2).
site is located; or
ii. A proposed action meets alternative administrative standards No alternative standards
pursuant to this Section and the proposed activity results in no required.
net loss of regulated riparian area or shoreline ecological
function in the drainage basin where the site is located; or
iii. A variance process is successfully completed and the This Exhibit 1 administrative
proposed activity results in no net loss of regulated riparian area variance provides this
or shoreline ecological function in the drainage basin where the requirement.
site is located.
There are two criteria for Administrative Approval of Utilities in a stream buffer (RMC 4-3-
050.L.b) where new utility lines and facilities may be permitted to cross water bodies in
accordance with an approved supplemental stream study. The project was designed to meet
these criteria. The criteria are:
For Alterations of Streams Mitigation, RMC 4-3-050.L.8.b, "Alterations of Streams and Lakes or
Associated Buffers -Utilities," was used in evaluating the report.
Code Staff Comments
b. Alterations of Streams and Lakes or Associated Buffers -Utilities:
i. Criteria for Administrative Approval of Utilities in Stream/Lake or
Buffer: New utility lines and facilities may be permitted to cross water
bodies in accordance with an approved supplemental stream/lake
study, if they comply with the following criteria:
(a) Fish and wildlife habitat areas shall be avoided to the maximum Avoidance of working in the
extent possible; and stream buffer is not feasible.
Adverse impacts on wildlife
habitat and fish should be
minimal if any, as the stream
will not be disturbed nor trees
taken down and the disturbed
area grade is proposed to be
kept the same with the removal
of non-native plants and
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replacement of native plants
that would provide greater
biological function to the site.
(b) The utility is designed consistent with one or more of the following Seasonal work shall be
methods: consistent with the approved
HPA.
(1) Installation shall be accomplished by boring beneath the scour Boring is not proposed.
depth and hyporheic zone of the water body and channel migration
zone;or
(2) The utilities shall cross at an angle greater than sixty (60) degrees The angle of the crossing is
to the centerline of the channel in streams or perpendicular to the greater than 60 degrees (Sheet
channel centerline; or 1 of Appendix B of Exhibit 4).
(3) Crossings shall be contained within the footprint of an existing This is a new utility and crossing
road or utility crossing; and would be within an existing 15
foot utility easement on the
parcel 214480-0535.
(c) New utility routes shall avoid paralleling the stream or following a The new utility route would not
down-valley course near the channel; and parallel the stream or follow a
down valley course near the
channel (Sheet 1 of Appendix B
of Exhibit 4).
(d) The utility installation shall not increase or decrease the natural No migration impact is foreseen
rate of shore migration or channel migration; and pursuant to the provided study
. (Exhibit 2) .
(e) Seasonal work windows are determined and made a condition of
approval; and
(f) Mitigation criteria of subsection L3c(ii) of this Section are met. The above matrix provides
review of the code subsection
requirements. The project
meets the criteria if a II
conditions of approval are met.
In consideration of the public safety and welfare and the aerial pipe crossing, a risk
management assessment should be considered. Staff recommends as a condition of approval of
the variance that the City's Risk Manager evaluate the exposed pipe installation and make a
determination of whether additional safety precautions should be made.
Staff has evaluated public policies and it has been determined that the public's health, safety,
and welfare would be served if the subject variance is approved ..
b. Each facility must conform to the Comprehensive Land Use Plan and with any adopted public
programs and policies;
The sewer extension facility conforms to the Comprehensive Land Use Plan and the adopted
public policies (see above under Criteria 'A') and programs. The proposal is within the
Downtown Wastewater Collection Basin. The area this sewer extension would provide service
to was annexed into Renton in 2009 as part of the Earlington Annexation (Ordinance 5484)
where the land use was established as a mix of single-family and multi-family zoning
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(Residential-8, Residential-10, and Residential-14). The area is primarily developed with single
family homes and vacant properties with an expectation through the Comprehensive Land Use
designations that the properties would provide residential infill opportunities and ultimately
increase the number of people living in the area. Therefore, the proposed facility would
conform to the comprehensive land use plan and with adopted public programs and policies.
c, Each facility must serve established, identified public needs;
The proposed sewer extension project would serve established, identified public needs. A
conclusion and recommendation of the City of Renton Long-Range Wastewater Management
Plan of 2010 states that, "where the City annexes an area that is currently unsewered by
another municipality, the City should provide sewer service" {Exhibit 12, p.1-8). Although some
ofthe Earlington Annexation area is provided with wastewater service, there is a gap in sewer
service in the area of the proposed project. Therefore, the proposed facility would serve
established, identified public needs.
d. No practical alternative exists to meet the needs;
Existing parcels are unable to redevelop without sewer availability. No other wastewater utility
provides service to this area. The zoning and land use designations for the area that would be
served by the proposal is established for an increase in residential units and population.
Alternative locations were evaluated and pursued for the sewer extension, within the westerly
subdivision of the parcel where the extension is now proposed. The neighbors that would be
required to create a local improvement district or similar body did not provide sufficient
support to provide an easement and space for a sewer extension. Additionally, a tra-ctwithin
the subdivision that is roughly within the private street was pursued as a possible location of
the wastewater line. This tract was not co-owned by all surrounding property owners, and was
sold to an out of state person that was not interested in the project proposal. Therefore, no
other practical alternative exists to meet the needs.
e, The proposed action takes affirmative and appropriate measures to minimize and
compensate for unavoidable impacts;
The proposal is to expand the wastewater utility to unserviced areas through a stream buffer
area. The stream is a Class 4 stream, and classified as non-salmon id bearing. Where the sewer
extension will intrude the stream buffer area, an analysis of alternatives were established to
prevent avoidable impacts to the environment and rectify those impacts that cannot be
avoided. As seen on page 5 ofthe Supplemental Stream Study and Stream Buffer Mitigation
Plan (Exhibit 2), the proposal provides analysis ofthe Critical Areas requirement. The proposal's
analysis looks at alternatives designed to prevent avoidable impacts to the environment and
rectify those impacts that could not be avoided. The analysis looked at avoidance, minimization
of impact, restoration, adverse impacts possibilities, and compensation. The Supplemental
Stream Study and Stream Buffer Mitigation Plan {Exhibit 2) provides the proposed project
affirmative and appropriate measures to minimize and compensate for unavoidable impacts.
f, The proposed activity results in no net loss of regulated wetland or stream/lake area, value,
or function in the drainage basin where the wetland, stream or lake is located;
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The proposal provided a Supplemental Stream Study and Stream Buffer Mitigation Plan (Exhibit
2). The proposal includes a review of alternatives to the work being proposed within the stream
buffer. The analysis includes avoidance, minimization, restoration, adverse impacts, and
compensation. Avoidance of work in the buffer is not feasible. The project is designed to
minimize impact, where the proposed pipe over the stream would be approximately 15 above
the stream, no disturbance to the stream bed or stream bank is proposed, the stream is crossed
as close to perpendicular as possible, no existing trees would be impacted, and BMPs would be
used during construction. The installation of a cement support block within the buffer area
would result in a 4-foot by 1.5-foot (6 square feet) impervious structure support the pipe as it
enters the ground.
Restoration would reestablish existing topography following work, remove non-native
plantings, and restore the area with more dense native planting. The mitigation proposal
determines "adverse impacts to the stream or stream buffer will not likely occur as a result of
the proposed project" (Exhibit 2, page 5). Given the restoration of the disturbed buffer area,
where the existing sparse vegetation consisting of some non-native plants would be replanted
with native plants at a denser cover and provide greater hydrological and biological conditions
to the buffer, the added impervious surface would not create a net loss of stream area value or
function in the drainage basin. The proposal analysis determines that the project would "not
result in a net-loss" of stream buffer function (Exhibit 2, page 6).
Therefore, the proposed activity results in no net loss of regulated wetland or stream/lake area,
value, or function in the drainage basin where the wetland, stream or lake is located.
g. The proposed activities will not jeopardize the continued existence of endangered,
threatened or sensitive species as listed by the Federal government or the State;
No endangered, threatened or sensitive species are within the parcel with the stream and
associated stream buffer where the project wastewater pipe crossing is proposed. The
Environmental Checklist submitted with the proposal, within the Environmental Elements
subsection of the checklist, does not list any endangered, threatened or sensitive species
(Exhibit 2). Therefore, the proposed activities will not jeopardize the continued existence of
endangered, threatened or sensitive species as listed by the Federal government or the State.
h. That the proposed activities will not cause significant degradation of groundwater or surface
water quality;
The proposal stream buffer mitigation plan (Exhibit 2) suggests that,
"Adverse impacts to the stream or stream buffer will not likely occur as a result of the
proposed project. As discussed ... the project will employ all necessary BMPs to minimize
erosion of distrubed surface soils and to prevent sediment-laden runoff from entering the
Class 4 stream. Furthermore, all disturbed areas will be replanted with native vegetation"
Therefore, the proposed activities will not cause significant degradation of groundwater or
surface water quality.
i. The approval is the minimum variance necessary to accomplish the desired purpose; and
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The proposed project would receive an approval for the minimum variance necessary to
accomplish the extension of the sewer main north across the Class 4 stream and within the 35
foot stream buffer area. Therefore, the approval is the minimum variance necessary to
accomplish the desired purpose.
j. The proposed variance is based on consideration of the best available science as described in
WAC 365-195-905; or where there is an absence of valid scientific information, the steps in
RMC 4-9-250F are followed.
Where alteration of the stream buffer occurs, the proposed buffer mitigation work is required
by Renton code to achieve equivalent or greater biological and hydrological functions. The
existing vegetation (including non-native plants) and area that would be disturbed would be
restored following temporary disturbance would be restored with native Western Washington
plantings and at a denser covering than existing. The proposed plantings would provide greater
native groundcover than existing and reduce storm water runoff and filter out sediments and
toxins from stormwater. The provided analysis and mitigation plan (Exhibit 2) are based on best
available science.
B. FINDINGS:
Having reviewed the written record in the matter, the City now makes and enters the following:
1. Request: The applicant has requested approval of an administrative variance from RMC 4-3-050 for
a proposed sewer pipe that would enter the ground in two places within a Class 4 stream buffer.
2. Administrative Variance: The applicant's administrative variance submittal materials comply with
the requirements necessary to process a variance request. The applicant's site plan for the full
sewer extension, the site plan for the buffer mitigation work, supplemental stream study and
stream buffer mitigation plan are provided Exhibits 2 through 4.
3. Existing Land Use: Right-of-way and a vacant parcel. The proposal is a sewer extension that
includes crossing a stream on a privately owned parcel and additional extension in the S 132nd
right-of-way.
4. Zoning: The subject property where the stream is located is within the Residential -14 dwelling
units per acre (R-14) zone (Exhibit 4). Along the 132nd right of way, between Renton Ave S to the
east and 801h Ave S to the west, the southerly properties are zoned R-14 and northerly properties
are zoned both R-14 and Residential-8 dwelling units per acre (R-8) zone (Exhibit 4).
S. Topography: The site where the stream is located has a gradual south facing slope of
approximately 14%, with steeper slopes along the stream bank, ranging from 28% on the left bank
of the stream, and 58% on the right bank of the stream.
6. Sewer Pipe Proposed: On the private property, the proposed 338 linear feet of pipe would be 8
inch PVC underground except for the daylighted area within the stream buffer on the private
parcel, where the daylit pipe would be within an 18-inch steel casing. Within the right-of-way, the
underground main would be approximately 436 linear feet of 8-inch PVC.
7. Due to the presence of a stream, Environmental (SEPA) Review was conducted and a DNS-M was
issued on May 5, 2014 (Exhibit 1).
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8. The proposal complies with RMC 4-3-050, Critical Areas Regulations, and RMC 4-9-250, Variances,
Waivers, Modifications, and Alternatives.
C. CONCLUSIONS:
1. The proposal would meet the standards of the Critical Areas Regulations 4-3-050 by providing
required mitigation for work conducted within a Class 4 stream's buffer area.
2. The applicant's proposal to work within a Class 4 stream buffer area meets the ten criteria to be
considered in making a decision on a variance request, if all conditions of approval are complied
with, as specified in RMC 4-9-2508.10: a) Public policies have been evaluated and it has been
determined by the Department Administrator that the public's health, safety, and welfare is best
served; b) Each facility must conform to the Comprehensive Land Use Plan and with any adopted
public programs and policies; c) Each facility must serve established, identified public needs; d) No
practical alternative exists to meet the needs; e) The proposed action takes affirmative and
appropriate measures to minimize and compensate for unavoidable impacts; f) The proposed
activity results in no net loss of regulated wetland or stream/lake area, value, or function in the
drainage basin where the wetland, stream or lake is located; g) The proposed activities will not
jeopardize the continued existence of endangered, threatened or sensitive species as listed by the
Federal government or the State; h)That the proposed activities will not cause significant
degradation of groundwater or surface water quality; i) The approval is the minimum variance
necessary to accomplish the desired purpose; and j) The proposed variance is based on
consideration of the best available science as described in WAC 365-195-905; or where there is an
absence of valid scientific information, the steps in RMC 4-9-2SOF are followed.
3. The analysis of the proposal according to variance criteria is found in the body of the Staff Report.
D. DECISION:
The Administrative Variance for the 132"d Street Sewer Extension Project, File No. LUA14-000453, V-A,
ERC, is approved and is subject to the following conditions:
1. The applicant shall comply with the mitigation measures for the Determination of Non-Significance
-Mitigated, issued on May 5, 2014.
2. The City Risk Management division shall review the project and make a determination about risks,
safety, and public welfare in consideration of the daylit portion of the sewer pipe within the
easement granted to the city for utilities.
3. The applicant shall comply with the conditions of approval included in the Hydraulic Project Approval (HPA)
which should provide directive on seasonal windows for construction work.
DATE OF DECISION ON LAND USE ACTION:
SIGNATURE:
~/('/11
• f
C.E. "Chip" Vincent, Administrator Date
Department of Community & Economic Development
City of Renton Department of Commun'~· & Economic Development ERC and A ,.J-fnistrative Variance Report & Decision
132ND SEWER MAIN EXTENSION VA :E
~~~---~~~~~~~-
LUA14-000453, V-A, ECF __
Report of May 5, 2014
TRANSMITTED this 5" day af May, 2014 to the Contact/Applicant/Owner:
Contact:
Rebecca Saur
Stantec Consulting Services, Inc
11130 NE 33'd Pl, Suite 200
Bellevue, WA 98004
Applicant:
John Hobson~ Sewer Utilities Division
City of Renton
1055 S Grady Way, 5'h Floor
Renton, WA 98057
TRANSMITTED this this s" day of May, 2014 ta the Parties of Record:
Larry Fisher
WDFW Area Habitat Biologist
177512" Ave NW Suite 201
Issaquah, WA 98027
Karen Walter
Muckleshoot Indian Tribe Fisheries
Habitat Program
39014172°d Ave SE
Auburn, WA 98092
TRANSMITTED this this 5" day of May, 2014 to the following:
Chip Vincent, CED Administrator
Neil Watts, Development Services Director
Craig Burnell, Building Official
Jennifer Henning, Planning Director
Vanessa Dolbee, Current Planning Manager
Fire Marshal
Page 18 of 19
Owner of Parcel
214480-0535 with utility easement:
John Stewart
8223 S 132"d St
Seattle, WA 98178
Owner of 132°d Street ROW
City of Renton
1055 S Grady Way, 5" Floor
Attn: Wastewater Utility
1055 S Grady Way
E. LAND USE ACTION APPEALS, REQUEST FOR RECONSIDERATION, & EXPIRATION:
The Environmental Determination and the Administrative Variance Review decisions will become final if
the decisions are not appealed within the 14-day appeal period (RCW 43.21.C.075(3); WAC 197-11-680).
Environmental Determination Appeal: Appeals of the environmental determination must be filed in
writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014.
Administrative Variance Approval Appeal: Appeals of the administrative site development plan review
decision must be filed in writing to the Hearing Examiner on or before 5:00 p.m. on May 23, 2014.
APPEALS: The above land use decisions will become final if not appealed in writing together with the
required fee to: Hearing Examiner, City of Renton, 1055 South Grady Way, Renton, WA 98057. RMC 4-8-
110 governs appeals to the Hearing Examiner and additional information regarding the appeal process may
be obtained from the City Clerk's Office, Renton City Hall -7th Floor, (425) 430-6510.
RECONSIDERATION: Within 14 days of the effective date of decision, any party may request that the
decision be reopened by the approval body. The approval body may modify his decision if material
evidence not readily discoverable prior to the original decision is found or if he finds there was
misrepresentation of fact. After review of the reconsideration request, if the approval body finds sufficient
evidence to amend the original decision, there will be no further extension of the appeal period. Any
person wishing to take further action must file a formal appeal within the 14-day appeal time frame.
City of Renton Deportment of Commun c. .. & Economic Development ERC and A~,inistrative Variance Report & Decision
132ND SEWER MAIN EXTENSION VA, ;;;~£'--------------
Report of May 5, 2014
LUA14-0004S3, V-A, ECF
Page 19 of 19
EXPIRATION: The administrative variance approval will become null and void if the applicant or owner of
the subject property which a variance has been requested has failed to commence construction or
otherwise implement effectively the variance granted within a period of two (2) years after such variance
has been issued. A one (1) year extension may be requested pursuant to RMC 4-9-2508.18.
THE APPEARANCE OF FAIRNESS DOCTRINE: provides that no ex parte (private one-on-one)
communications may occur concerning the land use decision. The Doctrine applies not only to the initial
decision, but to Appeals to the Hearing Examiner as well. All communications after the decision/approval
date must be made in writing through the Hearing Examiner. All communications are public record and
this permits all interested parties to know the contents ofthe communication and would allow them to
openly rebut the evidence in writing. Any violation of this doctrine could result in the invalidation of the
appeal by the Court.
EXHIBIT 2
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENTAL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
PREPARED FOR:
STANT EC CONSUL TING SERVICES INC.
ATTN: REBECCA SAUR
11130 NE 33"0 PLACE, SUITE 200
BELLEVUE, WA 98004
PREPARED BY:
GRETTE ASSOCIATESLLC
2102 NORTH 30TH STREET, SUITE A
TACOMA, WASHINGTON 98403
(253) 573-9300
CHAD WALLIN
BIOLOGIST
~. Grette Associates'IC V ENVIRONMENTAL CONSULTANJS
FEBRUARY 4, 2014
DATE
TABLE OF CONTENTS
I INTRODUCTION ...................................................................................................... 1
2 PROJECT DESCRIPTION ......................................................................................... I
2.1 Current Use ......................................................................................................... I
2.2 Proposed Actions ................................................................................................ I
3 EXISTING CONDITIONS ......................................................................................... 3
3. I Stream Classification .......................................................................................... 3
3.2 Existing Buffer Conditions ................................................................................. 3
3.3 Topography ......................................................................................................... 3
4 ANALYSIS OF ALTERNATIVES ............................................................................ 4
4.1 Avoidance ........................................................................................................... 5
4.2 Minimize ............................................................................................................. 5
4.3 Restoration .......................................................................................................... 5
4.4 Adverse Impacts .................................................................................................. 5
4.5 Compensation ..................................................................................................... 5
5 IMP ACT EVALUATION .......................................................................................... 6
5. I Affected Resources ............................................................................................. 6
5.1.1 Existing Stream Buffer Functions .......................................................................... 6
5.1.2 Impact Determination ............................................................................................ 6
6 MITIGATION PLAN ................................................................................................. 7
6.1 Target Functions ................................................................................................. 7
6.2 Goals and Objectives .......................................................................................... 7
6.3 Mitigation Design ............................................................................................... 7
6. 3.1 Grading Plan ......................................................................................................... 7
6.3.2 Planting Plan ......................................................................................................... 8
6.3.3 Planting Schedule .................................................................................................. 8
6.3.4 Preparation and Installation of Planting Materials .............................................. 9
7 COMPLIANCE INSPECTION .................................................................................. 9
7. I Compliance Inspection ........................................................................................ 9
7 .2 Compliance Inspection Report ............................................................................ 9
8 BIOLOGIST QUALIFICATIONS ........................................................................... 10
Chad Wallin .................................................................................................................. 10
9 REFERENCES ......................................................................................................... 10
LIST OF FIGURES
Figure I. King County Parcel Map (iMAP 2014) ...................................................................... 2
Figure 2. Topoography map (City of Renton 2014) ................................................................. .4
LIST OF TABLES
Table I. Proposed Critical Area Impact Summary by Type ...................................................... 6
Table 2. Proposed Planting Schedule ......................................................................................... 8
Appendix A. Project Site Plan
Appendix B. Mitigation Plan
LIST OF APPENDICES
132nd Sewer Extension Project i
Supplemental Stream Study and Stream Bti[fer Mitigation Plan
Febnwry 26, 2014
Grette Associates, LLC
INTRODUCTION
Grette AssociatelLc is under contract to Stantec Consulting Services, Inc. (Stantec) to
prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of
Renton Sanitary Sewer Extension project (Project) located at 8223 South I 32"d Street in
Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and
within Section 13, Township 23North, Range 4 East, W.M. (Figure I).
This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been
prepared in accordance with the requirements of the City of Renton Municipal Code
(RMC) Chapter 4.3.0SOL-Critical Area Regulations.
A Grette Associatesuc biologist visited the subject parcel on January 14, 2014 to
perform an assessment of the stream and associated stream buffer within the Project area.
Prior to the site visit, the ordinary high water mark (OHWM) determination was
completed by the Project proponents. During the OHWM determination, the stream
boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all
stream related figures to assess the extent of disturbance associated with this Project.
2 PROJECT DESCRIPTION
2.1 Current Use
The subject parcel is currently undeveloped. With the exception of the southern portion,
the site is mostly a grass field that appears to be regularly maintained and was likely
previously used as a livestock pasture. The existing vegetation outside of the maintained
area consists of a forested vegetation community that is dominated by Himalayan
blackberry (Ruhus discolor), red elderberry (Sambucus racemosa), salmonberry (Ruhus
spectahilis), red alder (A/nus ruhra), and black cottonwood (Populus balsamiferia). Non-
native, invasive species observed during the site assessment include Himalayan
blackberry, English holly (Liv: aquifolium), English ivy (Hedera helix), bamboo
(Bambusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species
were located primarily along the western boundary of the subject parcel.
2.2 Proposed Actions
The purpose of the proposed City Project is to connect several existing properties that are
currently being served by onsite septic systems to the City of Renton's sewer system.
The Project includes design of approximately 436 linear feet of new 8 inch PVC
underground sewer main along South l 32"d Street and approximately 338 linear feet of
new 8 inch PVC underground sewer main between the proposed South 132"d Street
alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new
sanitary sewer will extend through the subject parcel and will cross over an unnamed
Class 4 stream in the southwest comer of the site (Appendix A). The length of the
sanitary sewer line that will daylight across the Class 4 stream and associated stream
buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line
will be placed underground.
132nd Street Sewer Extension Project I
Supplemental Stream Study and Stream Bi1ffer Mitigation Plan
February 26, 2014
Grette Associates, LLC
Figure I. King County Parcel Map (iMAP 2014)
King County Tax Parcel Map
U1 King County
131'".' Street s('ll"('/" F1.f,'ll.\{O/I l'ntf<!C! :! Fehnwrr 20, 20 /.I.
Supph'111e11wl /)'trca111 Stud\' und StJ\'tlll! B1(ff('!" Jfitig,atioH Plo11 Greife As.rncialD. LLC
3 EXISTING CONDITIONS
The onsite stream that is located in the southern portion of the subject parcel originates
from two streams that likely collect surface and shallow subsurface water from the
surrounding areas. These two streams join at the intersection of S. l 32"d Street and Sotl•
Ave. South and flow east towards the subject parcel. Upstream of the confluence, the
two streams are conveyed through a series of culverts. However, at the confluence the
streams begin to flow in a natural channel. Within this natural stream reach, the stream
flows beneath several public roads prior to being fully conveyed through stormwater
features and directed to the south shore of Lake Washington. Within the subject parcel,
the bankfull width of the channel is approximately 36 inches.
3.1 Stream Classification
Based on the City of Renton's stream inventory (City of Renton 2014) and previous
correspondence with City staff (Gerald Wasser 2010), the stream located along the
southern portion of the subject parcel is a Class 4 stream. Class 4 streams are non-
salmonid bearing streams with intermittent flows during years of normal precipitation.
Per RMC 4.3 .050L.5a, Class 4 streams are subject to a 35 foot buffer width.
Within the Project area, the existing stream bed is comprised of a sand and fine/medium
gravel mixture and is confined within its banks by a constructed wall of automotive tires.
Tire walls armor both sides of the stream channel within the Project area. There is no
evidence that these tire walls extend upstream or downstream, and it appears that the tire
walls are only present within the southwestern portion of the subject parcel.
3.2 Existing Buffer Conditions
The stream buffer within the Project area consists of native and non-native vegetation
species that have developed several canopy layers. The dominant forested species within
the stream buffer include red alder, black cottonwood, and red cedar (Thuja plicata).
Beneath the forest vegetation is a scrub-shrub sub-canopy dominated by Himalayan
blackberry, red elderberry, salmonberry, and magnolia. Groundcover vegetation within
the stream buffer is sparse with an occasional sword fem (Polystichum munitum).
However, along the western parcel boundary, groundcover is more prominent and 1s
dominated by English ivy and creeping buttercup (Ranunculus repens).
3.3 Topography
The general topography within the subject parcel consists of a gradual south facing slope
(approximately 14% slope) that extends to the approximate stream buffer boundary
(Figure 2). From the stream buffer boundary to the left bank of the stream the
topography increases to approximately 28% slope. The stream buffer topography
associated with the right bank of the stream is approximately 58% slope. Similarly to the
left bank, the area outside of the stream buffer is less steep, approximately 14% slope.
According to the City of Renton's COR Maps (City of Renton 2014), both sides of the
stream are mapped as regulated slopes (>25% and :S40% slope).
132nd Street Sewer Extension Project 3
Supplemental Stream Study and Stream Buffer Mitigation Plan
February 26, 2014
Grette Assodates, LLC
Figure 2. Topoograpby map (City of Renton 2014).
4 ANALYSIS OF ALTER'\/ATIVES
The City of Renton. per RMC 4.8.120.D. I 9S, requires that any proposed project that
contains a water body or associated buffer area evaluate alternative methods of
developing the subject parcel. This section describes the effo11s made by the project
proponent to apply alternative methods to the proposed Project. An analysis of
alternatives is a set of steps designed to prevent avoidable impacts to the environment and
then rectify those impacts that cannot be avoided. The steps considered during the
planning of this Project are described below.
I 32"d Street Snn'r Ewe11sio11 Pmjec! 4
Supplemental Strrnm Stucfr and Stream B1d/c.T Mitigation Plan
Fchruary 26. 2014
Greife Associates. LLC
4.1 Avoidance
In the case of this project, avoidance is not feasible. In order to provide functioning City
sanitary sewer service to existing properties that are currently being served by onsite
septic systems. the proposed sanitary sewer extension will require connections between
South 132"d Street and the existing Earlington sanitary sewer line. No feasible
alternatives exist to provide these connections without crossing the stream channel on the
subject property.
4.2 Minimize
The Proposed project has been designed to minimize impacts to the critical areas within
the subject parcel. As currently designed, the proposed Project would require a
temporary stream buffer disturbance, approximately 902 square feet in size, that would be
associated with the trenching and placement of the new 8 inch PVC sanitary sewer main.
Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as
is practicable and will be elevated approximately 15 feet above the wetted channel to
avoid disturbance to the stream channel. No disturbance to the stream bed or bank is
proposed during this Project. Furthermore, the current design of the Project does not
propose removal of any existing mature trees, and Best Management Practices would be
employed to prevent disturbances to areas outside of the construction area.
4.3 Restoration
Restoration of temporarily disturbed stream buffer areas will occur upon completion of
the proposed Project (see Section 7). The proposed Project will reestablish preexisting
topography and replant the temporarily disturbed stream buffer area with native
vegetation. All non-native species removed during the placement of the sanitary sewer
line will be disposed of at an approved offsite location, and will be replaced with native
species.
4.4 Adverse Impacts
Adverse impacts to the stream or stream buffer will not likely occur as a result of the
proposed Project. As discussed below in Section 7.2.1, the Project will employ all
necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface
soils and to prevent sediment-laden runoff from entering the Class 4 stream.
Furthermore, all disturbed areas will be replanted with native vegetation.
4.5 Compensation
With the exception of the portion of the sewer pipe that will daylight, all disturbances to
the stream buffer will be temporary. The areas where the pipe will extend from the soil
surface are approximately four square feet in total size. This extremely small footprint
compared to the size of the stream buffer within the project area is anticipated to be
insignificant based on function. Therefore, no compensation is proposed for this Project.
132nd Street Sewer Extension Project 5
Supplemental Stream Stud_v and Stream Buffer Mitigation Plan
Fehrua,y 26, 2014
Grette Associates, LLC
5 IMPACT EVALUATION
The proposed Project will result in unavoidable temporary impacts to the stream buffer
within the subject parcel. These impacts are described in detail below. The impacts
addressed in this Plan are specific to the Class 4 stream and associated buffer.
5.1 Affected Resources
As discussed above, the proposed Project will temporarily disturb approximately
902 square feet of stream buffer. However, the existing stream buffer within the Project
area does not provide quality buffer function due to the amount of invasive vegetation
and previous alterations. Although temporary, the impacts associated with the Project
would require removal of vegetation and soil disturbance within the construction area.
No mature trees will be removed during this Project. No impacts to the stream bed or
bank are proposed.
5.1.1 Existing Stream Buffer Functions
The stream buffer within the Project area consists of native and non-native vegetation
species that have developed a stratified forest canopy. The upper forest canopy consists
of mature deciduous and evergreen species that provide shading and nutrient loads to the
stream and stream buffer. Beneath the upper forest canopy, the sub-canopy consists of
scrub-shrub species that likely provide some shading and nutrient load as well. Due to
the topography and the existing armoring of the stream bank, the buffer vegetation likely
does not provide significant hydrologic function during seasonally heavy rain events.
During heavy rains, the understory buffer vegetation likely does not reduce the surge
effect associated with stormwater runoff in highly developed areas.
The existing stream buffer like! y provides moderate wildlife habitat function due to the
presence of the stream and forested area. Wildlife functions within the stream buffer
include small mammal foraging and cover, passerine and raptor foraging, and amphibian
foraging, breeding, and refuge.
5.1.2 Impact Determination
The proposed impacts associated with the construction of the sanitary sewer line will be
temporary and will not result in a net-loss of stream buffer function. Furthermore, the
current design entails the least amount of impact to critical areas within the subject
parcel. With the exception of the daylight portion of the sanitary sewer line, no
permanent structure will be placed within the stream buffer area. The portion of the
sanitary sewer line that will daylight and span the stream will not adversely affect stream
or stream buffer function, as it will be elevated off of the ground and will not impede
existing stream or stream buffer processes. Affected critical areas by type are
summarized below in Table I.
Table I. Proposed Critical Area Impact Summary by Type.
Stream Buffer
Sewer Line Installation I 902 square feet Temporary
13211d Street Snver Extension Project 6
Supplemental Stream Study and Stream Buffer Mitigation Plan
Februarv 26. 2014
Grette Associates, LLC
6 MITIGATION PLAN
Mitigation will occur within the subject parcel (Appendix B, Sheet I). Actions proposed
include restoring approximately 902 square feet of stream buffer and employing BMPs
during construction.
6.1 Target Functions
Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve
equivalent or greater biological and hydrological functions. The restoration of the
temporarily disturbed stream buffer area will provide greater functional value to what
currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed
provides little buffer function due to existing non-native vegetation and very little ground
cover. Restoring the temporarily disturbed buffer area will provide greater vegetation
diversity and hydrological function through the planting of native shrubs and seeding of
native grasses. Establishing denser native groundcover within the disturbed area will
reduce surface stormwater runoff and filter out sediments and toxins from stormwater.
Currently, the groundcover within the forested buffer is mostly bare and likely does not
filter out significant amounts of sediment and pollutants from surface water.
6.2 Goals and Objectives
The overall goal of the mitigation plan is to restore temporarily disturbed vegetation
within the stream buffer. With the exception of where the sewer line extends out of the
ground, the exposed portion of the sanitary sewer line that will span the stream will not
have contact with the ground and thus will not impede natural stream or stream buffer
processes. Surface contact with the sewer line will be less than four square feet in size.
More specific mitigation goals include:
1. Ensure no net loss of stream buffer function;
2. Provide enhanced native plant diversity;
3. Provide enhanced water quality function.
Specific functional objectives of the Plan include:
1. Restore approximately 902 square feet of disturbed stream buffer;
2. Seed all disturbed soils within the construction area.
6.3 Mitigation Design
The intent of the mitigation actions at the subject parcel is to offset the temporary stream
buffer disturbance associated with the Project and to ensure no net loss of stream buffer
function.
6.3. J Grading Plan
Initially, the extent of the proposed work area will be clearly marked and silt fencing will
be installed along the outer work limits. All vegetation within the areas proposed for
excavation will be mechanically removed and disposed of at an approved upland
location. Excavation, grading, and clearing limits within the stream buffer will be limited
to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line.
132nd Street Sover Extension Project 7
Supplemental Stream Study and Stream B1{{fer Mitigation Plan
February 26. 2014
Grette Associates, LLC
During all construction activities, Best Management Practices (BMPs) will be employed
to minimize erosion of disturbed surface soils and to prevent sediment-laden mnoff from
leaving the project site. BMPs to be employed during constmction may include (but are
not limited to) silt fencing and/or straw bales around the perimeter of the clearing and
grading areas, mulching areas immediately after completion of grading, and installation
of plant material as soon as practical after grading.
Once the vegetation is removed, excavation and grading will be conducted using
excavators, dump tmcks, and other like equipment as needed to complete the work. All
excavated soils within the stream buffer will be cast into dump tmcks for temporary
storage and reused as back fill material in the stream buffer area. At no point will
equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings
within the disturbed stream buffer area will be immediately installed once the final grade
is achieved.
6.3.2 Planting Plan
Plant installation will be perfmmed in accordance with the specifications outlined in this
Plan. Any alterations to the planting plan due to site conditions will require approval
from the City of Renton prior to installation. The project proponent is only proposing
planting within the designated restoration area (Appendix B, Sheet 2).
The intent of restoring stream buffer vegetation with native grass and shrub species is to
provide greater plant diversity and water quality and hydrological functions within the
area proposed for disturbance. Shrub species will be planted on 4 to 5 foot centers and
will include Scouler's willow (Salix scouleriana), red elderberry, red-osier dogwood
(Cornus stolonifera), and cascara (Rhamnus purshiana). A dense planting schedule is
proposed based on the non-native invasive species that are present outside of the
restoration area. Over planting will provide a better opportunity for native species to
compete with non-native, invasive species.
6.3.3 Planting Schedule
The proposed planting schedule for the restoration area is presented below in Table 2.
The specific quantities of each species will be calculated during final design of the
mitigation action. In order to reduce mortality, a late fall plant installation schedule
(October -November) is preferred. Plants should not be installed during or immediately
before freezing weather. All remaining bare soils within the restoration area will be
seeded within an approved native seed mix consisting of species such as Idaho fescue
(Festuca idahoensis ssp. roemeri), blue wildrye (Ezvmus glaucus), spike bentgrass
(Agrostis exerata), and red fescue (Festuca rubra), or like native species.
Table 2. Proposed Planting Schedule
Sahr: scoule,?ana 20
Sambucus racemosa 6
Acer circinatum 20
Cascara Rhamnus urshiana 6
1 Plant quantities will be verified following final design.
132"'1 Street Sewer Extension Project 8
Supplemental Stream Study and Stream Buffer Mitigation Plan
2 allon
2 all on
2 allon
2 allon
4' to 5'
4' to 6'
4' to 5'
4' to 6'
Febr11my 26. 2014
Grette Associates, LLC
All plant materials to be used on the site will be native to Western Washington and will
consist of nursery grown stock from a reputable, local dealer. Only native species
specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant
substitutions must be approved by the City of Renton if specified species are not
commercially available.
Plant material provided will be typical of their species or variety; they will exhibit
normal, densely-developed branches and vigorous, fibrous root systems. Plants will be
sound, healthy, vigorous plants free from defects and all forms of infestation.
6.3.4 Preparation and Installation of Planting Materials
The landscape contractor shall verify the location of all elements of the landscape plan
prior to installation. The contractor may adjust the locations of landscape elements
during the installation period as necessary.
Circular plant pits with vertical sides will be excavated for all container stock. The pits
should be at least twice the diameter of the root system, and the depth of the pit should
accommodate the entire root system. The bottom of each pit will be scarified to a depth of
4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary
stress. The planting hole shall be amended with a mixture of topsoil and organic material if
necessary to provide appropriate rooting media.
Broken roots should be pruned with a sharp instrument and rootballs should be
thoroughly soaked prior to installation. Set plant material upright in the planting pit to
proper grade and alignment. Water plants thoroughly midway through backfilling and
again upon completion of backfilling. No filling should occur around stems. Do not use
frozen or muddy mixtures for backfilling. Form a ring of soil around the edge of each
planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each
container plant.
7 COMPLIANCE INSPECTION
7.1 Compliance Inspection
A compliance inspection will consist of evaluating the plantings immediately after
construction to confirm the Plan was followed and the plants were installed appropriately.
A walk-through survey will be conducted to verify that installation conforms to the
approved Plan. Photographs will be taken to document the completion of the restoration
actions.
7.2 Compliance Inspection Report
Within 60 days of completion of stream buffer restoration, the Project proponents will
prepare and submit a compliance inspection report to the City of Renton. This report will
document the implementation of the restoration actions and describe any deviations from
the original Plan. The report will also describe any potential problems identified during
installation and any recommended remedies to be proposed to the City. Representative
photographs will be taken to further document the implementation of this Plan.
I 32 11 J Street Seiver Extension Project 9
Supplemental Stream Study and Stream Buffer Mitigation Plan
Februmy 26. 2014
Greife Associates, LLC
8 BIOLOGIST QUALIFICATIONS
Chad Wallin
Chad Wallin is a Biologist with professional experience and training in wetland science,
wetland ecology, ecological restoration, critical area monitoring, and mitigation planning.
His work experience in the Pacific Northwest includes but is not limited to wetland and
stream delineations, habitat assessments, marine surveys, wetland and stream restoration,
wetland and stream mitigation plans, stream surveys, and related environment studies and
surveys.
Chad has earned a Bachelor's of Arts degree in Environmental Studies from the
University of Washington along with certificates in Wetland Science and Management
and Ecology Restoration through the University of Washington. In addition, Chad has
completed training for Ecology's Wetland Rating System, Ordinary High Water Mark,
and Calculating Compensatory Mitigation in Wetlands.
For a list ofrepresentative projects, please contact him at Grette Associates.
9 REFERENCES
iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County
Tax Parcel Map [map online]. Accessed [27 January 2014]. URL:
http://www.kingcountv.gov/operations/GIS/Maps/iMAP .aspx.
City of Renton. 2014. City of Renton COR Maps (online GIS). Critical Areas Map.
Accessed [27 Janurary 2014]. URL: http://rentonwa.gov/government/default
.aspx?id=29886. Interactive Layers= "Streams and Slopes''.
Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PREl0-034.
Message to markrra)concepteng.org. 0 I November 20 I 0.
13211d Street Sewer Extension Project JO
Supplemental Stream Study and Stream Buffer Mitigation Plan
Febmary 26. 2014
Grette Associates. LLC
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENTAL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
APPENDIX A: PROJECT SITE PLAN
J 3211d Street Sewer Extension Project A
Supplemental Stream Study and Stream Buffer Mitigation Plan
February 26, 2014
Grette Associates, LLC
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132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENT AL STREAM STUDY AND STREAM
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EXHIBIT 3f;,
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENT AL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
APPENDIX B: MITIGATION PLAN
132 11 d Street Sewer Extension Project B
Supplemental Stream Study and Stream Bt~f/er Mitigation Plan
Febniary 26, 2014
Grette Associates, LLC
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APPENDIX B
STREAM BUFFER PLANTING PLAN
CITY OF RENTON
S. 132ND STREET SANITARY SEWER LINE
EXTENSION PROJECT
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PLANNING • TECHNICAL SERVICES
PRINTED DATE: 10102/2013
This document is a g~hic representation, not
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Community & Economic Development
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City Llmitll D (COR) Commercia!!Office/Res1dentlal c:J (R-4) Residential 4dulac
CJ RENTON D (CV) Center Village D (R-8) Residential Bdu/ac
[....""=1 Potential Annexation Area c:J (IH) Industrial Heavy D (RC) Resourai Conservation
Zoning Delignauon D (IL) Industrial Light c:J (RM-F) Residential Mlllti-F1111ily
D (CA) CommerelalArterial D ~M} Industrial Medium CJ (RM-T) Resi. Multi-Family Traditional
D (CD) Center Down'i:Jwn c:J (R-1) Residential 1du/ac D (RM-U) Resi. Multi-Fanity Urbai Center
D (CN) Commercial Neighborhood [:J(R-10) Re.skiential 10dulac D (RMHJ Residential Manu1adured Homes
D (CO) Commercial Office c::](R-14)Resk18ntial 14dulac D (UC-N1)Urbai Center North 1
D (UC-N2) Urba, Centir North 2
Residential LJ (RC) Resource Conservation
LJ (R-1) Residential 1 du/ac
LJ (R-4) Residential 4du/ac
LJ {R-8) Residential 8du/ac
LJ (R-10) Residential 10du/ac
LJ (R-14) Residential 14du/ac
LJ (RM-F) Residential Multi-Family
LJ (RM-T) Res Multi-Family Traditional
LJ (RM-U) Res Multi-Family Urban Center
LJ (RMH) Res Manufactured Homes
Mixed Use Centers LJ {CV) Center Village
LJ (CD) Center Downtown
LJ (UC-N1) Urban Center North 1
LJ (UC-N2) Urban Center North 2
Commercial LJ (CA) Commercial Arterial
LJ (CN) Commercial Neighborhood
LJ (CO) Commercial Office
LJ {COR) Ccmmercial/Office/Residential
Industrial LJ (IL) Industrial Light
LJ (IM) Industrial Medium
LJ {IH) Industrial Heavy
c-:::.-:::.1 RENTON
{""""--, l_ ___ j Potential Annexation Area
PAGE
INDEX
Page
Number
SectJTown/Range
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PFCEIVED
EXHIBIT 7
;NTON PLANNING DIVISIOI
lAN""'eNVIRONMENTAL CHECKLIST
City of Renton Planning Division
1055 South Grady Way, Renton, WA 98057
Phone: 425-430-7200 Fax: 425-430-7231 ii
PURPOSE OF CHECKLIST: Cff, . . '.-Nrow
PLA.,1.:,·,, .,-_,, ·"·
The State Environmental Policy Act (SEPA), Chapter 43.21C RCW, requires all goverrinienfal'age'i'icies
to consider the environmental impacts of a proposal before making decisions. An Environmental Impact
Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the
quality of the environment. The purpose of this checklist is to provide information to help you and the
agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be
done) and to help the agency decide whether an EIS is required.
INSTRUCTIONS FOR APPLICANTS:
This environmental checklist asks you to describe some basic information about your proposal.
Governmental agencies use this checklist to determine whether the environmental impacts of your
proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most
precise information known, or give the best description you can.
You must answer each question accurately and carefully, to the best of your knowledge. In most cases,
you should be able to answer the questions from your own observations or project plans without.the need
to hire experts. If you really do not know the answer, or if a question does not apply to your proposal,
write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary
delays later.
Some questions ask about governmental regulations, such as zoning, shoreline, and landmark
designations. Answer these questions if you can. If you have problems, the governmental agencies can
assist you.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of
time or on different parcels of land. Attach any additional information that will help describe your proposal
or its environmental effects. The agency to which you submit this checklist may ask you to explain your
answers or provide additional information reasonably related to determining if there may be significant
adverse impact.
USE OF CHECKLIST FOR NONPROJECT PROPOSALS:
Complete this checklist for nonproject proposals, even though questions may be answered "does not
apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D).
For nonproject actions (actions involving decisions on policies, plans and programs), the references in
the checklist to the words "project," "applicant," and "property or site" should be read as "proposal,"
"proposer," and "affected geographic area," respectively.
V:\2002\active\0015\00022.000 132nd St Sewer\Pennit\SEPA_ 132nd_20140319.doc -, -02/08
A. BACKGROUND
1. Name of proposed project, if applicable:
SOUTH 132ND STREET SEWER EXTENSION
2. Name of applicant:
CITY OF RENTON
3. Address and phone number of applicant and ccntact person:
1055 S GRADY WAY
RENTON, WASHINGTON 98058
425-430-7200
KRIS SORENSEN, ASSOCIATE PLANNER
4. Date checklist prepared:
MARCH 19, 2014
5. Agency requesting checklist:
ECOLOGY, DEPT. OF
ENVIRONMENTAL RE\/!'2/11
SEPA OFF!C!AL
PO BOX47703
OLYMPIA WA 98504-7703
(360) 407-6922
YAX (360) 407-6904
SEPAUNIT@ECY. WA.GOV
WASHINGTON STATE DEPARTMENT OF FISH &
WILDLIFE
P0BOX43200
OLYMPIA WA 98504-3155
(360) 902-2578
FAX (360) 902-2946
SEPADESK@DFW.WA.GOV
WASHINGTON ST A TE DEPARmENT OF HEAL TH
KELLY COOPER
P0BOX47820
OLYMPIA WA 98504-7820
(360) 236-3011
FAX (360) 664-8150
KELLY. COOPER@OOH. WA. GOV
WASHINGTON STATE DEPARTIJIENT OF NATURAL
RESOURCES
SEPA OFFICIAL
1111 WASHINGTON STREET SOUTHEAST
POBOX47015
OLYMPIA WA 98504-7015
(360) 902-2117
FAX (360) 902-1789
SEPACENTER@DNR.WA.GOV
V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-2 -
KING COUNTY DEPARTMENT OF PERMITTING &
ENVIRONMENTAL REVIEW
STEVE BOTTHEIM
LANO USE SERVICES DMSION
900 OAKESDALE A VE SW
RENTON, WA 98055-1219
(206) 296-7144
FAX (206)296-7051
STEVE.BOTTHEIM@KINGCOUNTY.GOV
CITY OF RENTON
MR. NEIL WATIS
1 055 S. GRADY WAY
RENTON WA 98057
(425) 430-7218
FAX(425)277-4455
NWATTS@RENTONWA.GOV
CITY OF RENTON
MR. MARK PETERSON
1055 S. GRADY WAY
RENTON, WA 98057
(425) 430-7000
MPETERSON@RENTONWA.GOV
KING COUNTY
PLANNING & ASSET MANAGEMENT
STEVE HIRSCHEY, lJTRC CHA.JR
KING STREET CENTER
201 S.JACKS0NSTRM512
KSC·NR-0512
SEATTLE, WA98104
206-205-0817
S1E\/E.H!RSCHEY@KINGCOUNTY.GOV
RENTON SCHOOL DISTRICT
lviA!NTENAf.lCE AND OPERATIONS
7812 s 124'rl
SEATTLE, WA 98178
425-204-4400
JOE.LAMBORN@REt•,ffON SCHOOLS.US
KING COUN1Y FACIUTJES MANAGEMENT D!V!S!ON
REAL ESTATE SERVICES
KATHY BROWN
500 4 TI-! AVE. SUITE 800
SEATTLE, WA 98104
KATHY.BROWN@KINGCOU"1'Y.GOV
MUCKLESHOOT TRIBE
39015 -172'0 AVE SE
AUBURN, WA 98092
(253) 931-8570
VJRGINIA.CROSS@MUCKLESHOOT.NSN.US
LAURA MURPHY
TRIBAL ARCHEOLOGIST
MUGKLESHOOT IND!AN TRIBE PRESERVATION
PROGRAM
39015172NOAVESE
AUBURN, WA 98092
253-876-3272
'
l.AUAA.MURPHY@MUCKLESHOOT.NSN.US
KAREN WALTER
WATERSHEDS ANO LAND USE TEAM LEADER
MUCKLESHOOT INDIAN TRIBE FlSHERIES DIVISION
39015172NDAVE SE
AUBURN, WA 98092
253-876-3116
KAREN.WALTER@MUCKLESHOOT.NSN.US
6. Proposed timing or schedule (including phasing, if applicable):
SPRING/SUMMER 2014
7. Do you have any plans for future additions, expansion, or further activity related to or connected
with this proposal? If yes, explain.
THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION
PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE
NEW SEWER MAIN IN THE FUTURE.
8. List any environmental informatio1+you know about that has. been prepared, or will be prepared,
directly related to this proposal.
GRETIE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED
FEBRUARY 4, 2014.
9. Do you know whether applications are pending for governmental approvals of other proposals
directly affecting the property covered by your proposal? If yes, explain.
NONE
10. List any governmental approvals or permits that will be needed for your proposal, if known.
CITY OF RENTON RIGHT OF WAY PERMIT
CITY OF RENTON GRADING PERMIT
CITY OF RENTON VARIANCE
CITY OF RENTON ENVIRONMENTAL REVIEW
11. Give brief, complete description of your proposal, including the proposed uses and the size of the
project and site.
CONSTRUCTION OF APPROXJMATELY 775 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED
APPURTENANCES.
12. Location of the proposal. Give sufficient information for a person to understand the precise
location of your proposed project, including a street address, if any, and section, township, and
range if known. If a proposal would occur over a range of area, provide the range or boundaries
V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-2 -
of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if
reasonably available. While you should submit any plans required by the agency, you are not
required to duplicate maps or detailed plans submitted with any permit applications related to this
checklist.
THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132"° STREET, WEST OF RENTON AVE
SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 13 TOWNSHIP 23
RANGE 04 EAST, IN RENTON, WASHINGTON.
8. ENVIRONMENTAL ELEMENTS
1. EARTH
a. General description of the site (circle one); fiat.I ROLUN(aj, hilly, steep slopes,
mountainous, other ______ _
b. What is the steepest slope on the site (approximate percent slope?)
THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE,
LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE,
c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them and note any
prime farmland.
THE SITE GENERALLY CONTAINS ALDERWOOD GRAVELLY SANDY LOAM & KITSAP SILT LOAM
OVERLAYING WEATHERED AND UNWEATHERED BEDROCK.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe. ·
No
e. Describe the purpose, type, and approximate quantities of any filling or grading
proposed. Indicate source of fill.
EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND
APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO
SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS
WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTIVITIES, WILL BE EXPORTED TO
AN APPROVIED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR
CONTOUR IS PLANNED.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally
describe.
THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES,
CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTIVITIES. ALL EXPOSED SOIL SURFACES
WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION
EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL
CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND
CITY OF RENTON REQUIREMENTS.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
V:\2002\aciive\0015\00022.00D 132nd st Sewer\Permif\SEPA_132nd_2D140319.doc-2 -
CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE.
TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING
OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS
SURFACE.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
2. AIR
TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE
CONSTRUCTION PLANS FOR THIS PROJECT TO .INCLUDE THE INSTALLATION OF DRAINAGE
STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION
WIDTHS AND DEPTHS WILL BE KEPT TD A MINIMUM DURING CONSTRUCTION. IMMEOIA TE BACKFILL OF
TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL.
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile,
odors, industrial wood smoke} during construction and when the project is completed? If
any, generally describe and give approximate quantities if known.
OUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING
CONSTRUCTION.
b. Are there any off-site sources of emission or odor that may affect your proposal? If so,
generally describe.
NO
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
. STANDARD EMISSION .CONTROL DEVICES WILL BE UTILIZED BY CONSTRUCTION EQUIPMENT, AS
NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TD LIMIT DUST DURING CONSTRUCTION.
3. WATER
a. Surface Water:
1) Is there any surface water body on or in the immediate vicinity of the site (including year-
round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type
and provide names. If appropriate, state what stream or river it fiows into.
2)
YES, THERE IS A CLASS 4 UN-NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT
SITE.
Will the project require any work over, in, or adjacent to (within 200 feet) the described
waters? If yes, please describe and attach available plans.
YES, THE PROPOSED SEWER MAIN WILL CROSS THE STREAM AT TffE SOUTH WEST CORNER OF THE
PROJECT SITE. THE 8-INCH SEWER MAIN WILL CROSS APPROXIMATELY 8 FEET ABOVE THE CREEK
AND WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE
SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL
CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE EAST SIDE OF THE STREAM WILL BE LOCATED
WITHIN THE 35-FOOT STREAM BUFFER.
3) Estimate the amount of fill and dredge material that would be placed in or removed from
surface water or wetlands and indicate the area of the site that would be affected.
Indicate the source of fill material.
V:\2002\active\0015\00022.000 132nd st Sewer\Permll\SEPA_ 132rid_20140319.doc-3 -
NONE
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No
5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan.
No
6) Does the proposal involve any discharges of waste materials to surface waters? If so,
describe the type of waste an<;! anticipated volume of discharge.
No
b. Ground Water
1) Will ground water be withdrawn, or will water be discharged to ground water? Give
general description, purpose, and approximate quantities if known.
SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE
TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN
QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE
EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE
COURSE OR THE EXISTING STORM DRANAGE SYSTEM.
2) Describe waste material that will be discharged into the ground from septic tanks or other
sources, if any (for example: Domestic sewage; industrial, containing the following
· chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of
such systems, the number of houses to be served (if applicable), or the number of
animals or humans the system(s) are expected to serve.
NONE
c. Water Runoff (including storm water):
1) Describe the source of runoff (including storm water) and method of collection and
disposal, if any (include quantities, if known). Where will this water flow? Will this water
flow into other waters, If so, describe.
RUNOFF,CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES
RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE
HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL
MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS
HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS.
2) Could waste material enter ground or surface waters? If so, generally describe.
NO
d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if
any:
V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_~32nd_20140319.doi;-4 •
PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES
AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO
A MINIMUM DURING CONSTRUCTION.
4. PLANTS
a. Check or circle types of vegetation found on the site:
---2,__ deciduous tree: alder, maple, aspen, other
---2,__ evergreen tree: fir, cedar, pine, other
---2,__ shrubs
---2,__ grass
__ pasture
__ crop or grain
_..x_ wet·soil plants: cattail, buttercup, bullrush, skunk cabbage, other
__ water plants: water lily, eel grass, milfoil, other
__ other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM,
WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTTERCUP, AND
MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS,
AND UNDERBRUSH SPECIES.
c. List threatened or endangered species known to be on or near the site.
NONE KNOWN
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, ifany:
A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO
CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO
LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL
BE SHOWN ON THE PROJECT PLANS.
5. ANIMALS
a. Circle any birds and animals, which have been observed on or near the site or are known .
to be on or near the site:
Birds: hawk, heron, eagle, ~ongbird@, other ________ _
Mammals: deer, bear, elk, beaver, other-----------
Fish: bass, salmon, trout, herring, shellfish, other _____ _
b. List any threatened or endangered species known to be on or near the site.
NONE KNOWN
c. Is the site part of a migration route? If so, explain
UNKNOWN
d. Proposed measures to preserve or enhance wildlife, if any:
V:\2002\acfive\0015\00022.DOO 132nd S1 $ewer\Permll\SEPA_132nd_2D140318.doc--5-
DOES NOT APPLY
6. ENERGY AND NATURAL RESOURCES
a. What kinds of energy (electric, natural gas, oil, wood stove, solar} will be used to meet
the completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc.
NONE
b. Would your project affect the potential use of solar energy by adjacent properties? If so,
generally describe.
NO
c. What kinds of energy conservation features are included in the plans of this proposal?
List other proposed measures to reduce or control energy impacts, if any:
NONE
7. ENVIRONMENTAL HEALTH
a. Are there any environmental health hazards, including exposure to toxic chemicals,
risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this
proposal? If so, describe.
THEkE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND
GENERAL CONSTRUCTION PRACTICES, SPILLS OF MACKI NE FLUIDS, RISK OF FIRE AND EXPLOSION
AND OTHER SIMILAR, NORMAL, CONSTRUCTION KAZAROS EXIST.
1} Describe special emergency services that might be required.
NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES
AND PERSONNEL MAY BE REQUIRED.
2) Proposed measures to reduce or control environmental health hazards, if any:
TRENCH BOXES, BRACING, SUMP PUMPS AND OTKER ASSOCIATED CONSTRUCTION SAFETY
EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE
POTENTIAL_ FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL
ENSURE THAT THE SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY
DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT
OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE
OF CONSTRUCTION EQUIPMENT.
b, Noise
1} What types of noise exist in the area which may affect your project (for example: traffic,
equipment, operation, other}?
NONE
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2) What types and levels of noise would be created by or associated with the project on a
short-term or a long-term basis (for example: traffic, construction, operation, other)?
Indicate what hours noise would come from the site.
SHORT TERM
CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE
CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITIING
AGENCIES.
LONG TERM
THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT.
3) Proposed measures to reduce or control noise impacts, if any:
CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE
NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS.
8. LAND AND SHORELINE USE
a. What is the current use of the site and adjacent properties?
RESIDENTIAL AND COMMERCIAL
b. Has the site been used for agriculture? If so, describe.
UNKNOWN
c. Describe any structures on the site.
NONE
d. Will any structures be demolished? If so, what?
NO
e. What is the current zoning classification of the site?
R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE
f. What is the current comprehensive plan designation of the site?
URBAN CENTER NORTH (UC-N)
g. If applicable, what is the current shoreline master program designation of the site?
DOES NOT APPLY
h. Has any part of the site been classified as an "environmentally sensitive" area? If so,
specify.
YES, THERE JS AN UN-NAMED CLASS 4 STREAM ON THE PROJECT SITE.
i. Approximately how many people would reside or work in the completed project?
V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEF'A_132nd_20140319.doe-7 -
NONE
j. Approximately how many people would the completed project displace?
NONE
k. Proposed measures to avoid or reduce displacement impacts, if any:
DOES NOT APPLY
I. Proposed measures to ensure the proposal is compatible with existing and projected
land uses and plans, if any:
THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH
DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT.
9. HOUSING
a. Approximately how many units would be provided, if any? Indicate whether high, middle,
or low-income housing.
NONE
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
NONE
c. Proposed measures to reduce or control housing impacts, if any:
DOES NOT APPLY
10. AESTHETICS
a. What is the tallest height of any proposed structure(s}, not including antennas; what is
the principal exterior building material(s} proposed.
NOT APPLICABLE
b. What views in the immediate vicinity would be altered or obstructed?
NOT APPLICABLE
c. Proposed measures to reduce or control aesthetic impacts, if any:
NOT APPLICABLE
11. LIGHT AND GLARE
a. What type of light or glare will the proposal produce? What time of day would it mainly
occur?
NONE
b. Could light or glare from the finished project be a safety hazard or interfere with views?
V:\2DC2\active\0015\00022.0DO 132nd st Sewer\Ferm1t\SEPA_132nd_20140319.doc-8 -
NOT APPLICABLE
c. What existing off-site sources of light or glare may affect your proposal?
NONE
d. Proposed measures to reduce or control light and glare impacts, if any:
NOT APPLICABLE
12. RECREATION
a. What designated and informal recreational opportunities are in the immediate vicinity?
EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT srrE.
b. Would the proposed project displace any existing recreational uses? If so, describe.
NO
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
DOES NOT APPLY
13. HISTORIC AND CULTURAL PRESERVATION
a. Are there any places or objects listed on, or proposed for, national state, or local
preservation registers known to be on or next to the site? If so, generally describe.
NONE KNOWN
b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or
cultural importance known to be on or next to the site.
NONE
c. Proposed measures to reduce or control impacts, if any:
DOES NOT APPLY
14. TRANSPORTATION
a. Identify public streets and highways serving the site, and describe proposed access to
the existing street system. Show on site plans, if any.
THE PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND
FROM THE WEST VIA SOUTH LANGSTON ROAD OR 80TH AVENUE SOUTH.
b. Is site currently served by public transit? If not, what is the approximate distance to the
nearest transit stop?
YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE
AT THE INTERSECTION OF SOUTH 132"0 STREET AND RENTON AVENUE SOUTH .
.V:\2002\aciive\0015\00022.000 132nd S1 Sewer\Permlt\SEPA_, 32nd_20140319.doc-9 ~
c. How many parking spaces would the completed project have? How many would the
project eliminate?
NONE
d. Will the proposal require any new roads or streets, or improvements to existing roads or
streets, not including driveways? If so, generally describe (indicate whether public or
private?
NO
e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation?
If so, generally describe.
NO
f. How many vehicular trips per day would be generated by the completed project? If
known, indicate when peak volumes would occur.
NONE
g. Proposed measures to reduce or control transportation impacts, if any:
DOES NOT APPLY
15. PUBLIC SERVICES
16.
a. Would the project result in an increased need for public services (for example: fire
protection, police protection, health care, schools, other)? If so, generally describe.
NO
b. Proposed measures to reduce or control direct impacts on public services, if any.
a.
b.
DOES NOT APPLY
UTILITIES
Circle utilities currently available at the site: ELECTRIC! ' !NATURAL GAS, WATEaj, §EFUS§
@ERVICEI, [ELEPHON§, SANITARY SEWER, SEPTIC SYSTE , other.
Describe the utilities that are proposed for the project, the utility providing the service,
and the general construction activities on the site or in the immediate vicinity which might
be needed.
INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8-
FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL
CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL
AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON.
C. SIGNATURE
I, the undersigned, state that to the best of my knowledge the above information is true and
complete. It is understood that the lead agency may withdraw any declaration of non-significance
that it might issue in reliance upon this checklist should there be any willful misrepresentation or
willful lack of full disclosure on my part.
Proponent:
Name Printed:
Date:
V:12002\active\0015\00022.0DO 132nd St Sewer\Permit\SEPA_132nd_2D14D319.doc-10-
VICINITY MAP
SOUTH 132"0 STREET SEWER MAIN EXTENSION
V:\2D02\aciive\OD15\D0022.0DD 132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-11 -
249 0 124 249 Feet
WGS_ i 984_ Web_Mei-cator _Auxiliary _Sphere
RentonMapSupport@Rentonwa.gov
05102/2014
..
/ifuj(i;
This map is a user generated static output from an Internet mapping site and
1s for reference only. Data layers that appear on this map may or may not be
accurate, current, or otherwise reliable.
THIS MAP IS NOT TO BE USED FOR NAVIGATION
Legend
City and County Boundary
01her
L'."'' ~ City of Renton ..
Addresses
Parcels
Overlay Distrjcls
Auto Mall A
Auto Mall B
CJ Employment Area Valley
[l City Center Sign Regulalicn Area
[2] Urban Design D1s1ricl A
None
[SJ Urban Design D1slncl B
[] Urban Design 01stnct C
[] Urban Design District D
Development Districts
Annexations
Annexation History
Wastewater Structures
Clean Outs
J End Cap
@ Manholes
wetwe11
Wastwater Mains
Ci!y, Gravity
City, Fori::e
Private, Gravity
Private, Force
City, DI)'
King County Mains
Gravity
Force
0
~ :::c
1-4
C:I
1-4
-I
00
.S:ityof~tf(on-
Finance & IT Division
t
Kris Sorensen
From:
Sent:
To:
Cc:
Subject:
Hi Kris:
Fisher, Larry D (DFW) < Larry.Fisher@dfw.wa.~
Wednesday, April 09, 2014 7:50 AM
Kris Sorensen
Karen Walter (KWalter@muckleshoot.nsn.us)
John Stewart SS Extension/ LUA14-000453, ECF, VAR
EXHIBIT 9
I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject
project.
A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this
project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings.
Thank you for the opportunity to provide this information.
Larry Fisher
WDFW Area Habitat Biologist
1775 12th Ave NW Suite 201
Issaquah, WA 98027
425-313-5683
FAX 425-427-0570
Cell: 425-449-6790
<'){{))>< <'){{}}><
1
•
_.(HIBIT 10
LONG-RANGE WASTEWATER MANAGEMENT PLAN
A COMPREHENSIVE SEWER SYSTEM PLAN
Final 2010
MAYOR
Denis Law
PUBLIC WORKS DEPARTMENT ADMINISTRATOR
Gregg Zimmerman
UTILITY SYSTEMS DIVISION STAFF
Lys Hornsby
David Christensen
Michael Benoit
MAINTENANCE SERVICES DIVISION STAFF
Richard Marshall
Stan Job
CITY COUNCIL
Don Persson, President
Terri Briere, President Pro Tern
Randy Corman, Councilmember
Marcie Palmer, Councilmember
King Parker, Councilmember
Greg Taylor, Councilmember
Rich Zwicker, Councilmember
PREPARED BY
City of Renton
with the assistance of
Carollo Engineers
-
PLAN REVIEW COMMENTS (LUA14-000453) cJ{HIBIT 11
PLAN ADDRESS:
DESCRIPTION:
Reviewer Comments
APPLICATION DA TE: 04/04/2014
The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical Area Variance Review for a 775
lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street, west of Renton Ave Sand east of S
Langston Road, from the south. The project location is within the public right-of-way of S 132nd St and across a vacant privately owned
parcel (PIO 2144800535), from south to north, that has an unnamed Class 4 stream and associated critical area buffer. The vacant parcel
is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer main crosses the stream on the vacant property at the
southwest oomer of the project site, where the 8-inch sewer main will cross approximately 8 feet above lhe stream and will be
contained within an 18-inch steel casing, supported on either side of the stream, by large concrete blocks. All nine trees on-site are
proposed to be retained. Approximately 902 square feet of stream buffer area will be impacted. A Supplemental Stream Study and Stream
Buffer Mitigation Plan are provided with a stream buffer planting plan.
Leslie Betlach Ph: 425--430-6619 email: LBetiach@rentonwa.gov
Community Services Review Created On: 04/2212014
; l
A. Environmental impacts comments: Protect all trees outside the c:onstruction limits from construction damage and soil compaction
Repair damage to trees and shrubs as a result of construction activities.
B. Policy-related comments: There are no impacts to Parks
C. Code-related comments: There are no impacts to Parks.
Engineering Review Created On: 05/02/2014
Please provide geotechnical report for the subject project that details the groundwater level. It is also highly recommended to
provide the 100 year water surfac:e elevation of the stream crossing.
Planning Review Created On: 05/02/2014
Planning:
May 05, 2014
1. RMC section 4-4-030.C.2 limits haul hours between 8:30 am to 3:30 pm, Monday through Friday unless otherwise approved by
the Development Services Division.
2. Commercial, multi-family, new single family and other nonresidential construction activities shall be restricted to the hours
between seven o'clock (7:00) a.m. and eight o'clock (8:00) p.m., Monday through Friday. Work on Saturdays shall be restricted to
the hours between nine o'dock (9:00) a.m. and eight o'clock (8:00) p.m. No work shall be permitted on Sundays
3. The applicant may not fill, excavate, stack or store any equipment, dispose of any materials, supplies or fluids, operate any
equipment, install impervious surfaces, or compact the earth in any way within the area defined by the drip line of any tree to be
retained.
4. The applicant shall erecl and maintain six foot {6') high chain link temporary construction fencing around the drip lines of all
retained trees, or along the perimeter of a stand of retained trees. Placards shall be placed on fencing every fifty feet (50')
indicating the words, "NO TRESPASSING -Protected Trees" or on each side of the fencing if less than fifty feet (50'). Site access
to individually protected trees or groups of trees shall be fenced and signed. Individual trees shall be fenced on four (4) sides. In
addition, the applicant shall provide supervision whenever equipment or trucks are moving near trees
Page 1 of 1
•
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENT AL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
,;._ Grette Associates•LC
v~NVIAO_NMENTAL CONSULTANTS_
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENTAL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
PREPARED FOR:
STANTEC CONSULTING SERVICES INC.
ATTN: REBECCA SAUR
11130 NE 33RD PLACE, SUITE 200
BELLEVUE, WA 98004
PREPARED BY:
GRETTE ASSOCIA TESu,e
2102 NORTH 30rn STREET, SUITE A
TACOMA, WASHINGTON 98403
(253) 573-9300
CHAD WALLIN
BIOLOGIST
~. Grette Associates'LC V !LN_VIBONMElfrAi. c~ONSULTANTS
FEBRUARY 4, 2014
DATE
TABLE OF CONTENTS
1 INTRODUCTION ...................................................................................................... 1
2 PROJECT DESCRIPTION ......................................................................................... I
2.1 Current Use ......................................................................................................... 1
2.2 Proposed Actions ................................................................................................ 1
3 EXISTING CONDITIONS ......................................................................................... 3
3.1 Stream Classification .......................................................................................... 3
3.2 Existing Buffer Conditions ................................................................................. 3
3.3 Topography ......................................................................................................... 3
4 ANALYSIS OF ALTERNATIVES ............................................................................ 4
4.1 Avoidance ........................................................................................................... 5
4.2 Minimize ............................................................................................................. 5
4.3 Restoration .......................................................................................................... 5
4 .4 Adverse Impacts .................................................................................................. 5
4.5 Compensation ..................................................................................................... 5
5 IMPACT EVALUA TJON .......................................................................................... 6
5 .1 Affected Resources ............................................................................................. 6
5.1.1 Existing Stream Buffer Functions .......................................................................... 6
5.1.2 Impact Determination ............................................................................................ 6
6 MITIGATION PLAN ................................................................................................. 7
6.1 Target Functions ................................................................................................. 7
6.2 Goals and Objectives .......................................................................................... 7
6.3 Mitigation Design ............................................................................................... 7
6.3.J Grading Plan ......................................................................................................... 7
6.3.2 Planting Plan ......................................................................................................... 8
6.3.3 Planting Schedule .................................................................................................. 8
6.3.4 Preparation and Installation CJ( Planting Materials .............................................. 9
7 COMPLIANCE INSPECTION .................................................................................. 9
7.1 Compliance Inspection ........................................................................................ 9
7.2 Compliance Inspection Report ............................................................................ 9
8 BIOLOGIST QUALIFICATIONS ........................................................................... 10
Chad Wallin .................................................................................................................. 10
9 REFERENCES ......................................................................................................... 10
LIST OF FIGURES
Figure 1. King County Parcel Map (iMAP 2014) ...................................................................... 2
Figure 2. Topoography map (City of Renton 2014) ................................................................. .4
LIST OF TABLES
Table 1. Proposed Critical Area Impact Summary by Type ...................................................... 6
Table 2. Proposed Planting Schedule ......................................................................................... 8
Appendix A. Project Site Plan
Appendix B. Mitigation Plan
LIST OF APPENDICES
132 11 d Sewer Extension Project i
Supplemental Stream Study and Stream Buffer Mitigation Plan
February 26, 2014
Greife Associates, LLC
l INTRODUCTION
Grelte AssociatesLLC is under contract to Staniec Consulting Services, Inc. (Staniec) to
prepare a Supplemental Stream Study and Stream Buffer Mitigation Plan for the City of
Renton Sanitary Sewer Extension project (Project) located at 8223 South l 32"d Street in
Renton, WA. The Project site is located within King County Tax Parcel 2144800535 and
within Section 13, Township 23North, Range 4 East, W.M. (Figure I).
This Supplemental Stream Study and Stream Buffer Mitigation Plan (Plan) has been
prepared in accordance with the requirements of the City of Renton Municipal Code
(RMC) Chapter 4.3.050L-Critical Area Regulations.
A Grette Associates"'c biologist visited the subject parcel on January 14, 2014 to
perform an assessment of the stream and associated stream buffer within the Project area.
Prior to the site visit, the ordinary high water mark (OHWM) determination was
completed by the Project proponents. During the OHWM determination, the stream
boundary was flagged and surveyed for use in this Plan. The OHWM is presented in all
stream related figures to assess the extent of disturbance associated with this Project.
2 PROJECT DESCRIPTION
2.1 Current Use
The subject parcel is currently undeveloped. With the exception of the southern portion,
the site is mostly a grass field that appears to be regularly maintained and was likely
previously used as a livestock pasture. The existing vegetation outside of the maintained
area consists of a forested vegetation community that is dominated by Himalayan
blackberry (Ruhus discolor), red elderberry (Sambucus racemosa), salmonberry (Rubus
spectahilis), red alder (A/nus rubra), and black cottonwood (Populus balsamiferia). Non-
native, invasive species observed during the site assessment include Himalayan
blackberry, English holly (Llex aquifohum ), English ivy (Hedera helix), bamboo
(Bambusodae spp.), and magnolia (Magnolia spp.). These non-native, invasive species
were located primarily along the western boundary of the subject parcel.
2.2 Proposed Actions
The purpose of the proposed City Project is to connect several existing properties that are
currently being served by onsite septic systems to the City of Renton's sewer system.
The Project includes design of approximately 436 linear feet of new 8 inch PVC
underground sewer main along South 132"d Street and approximately 338 linear feet of
new 8 inch PVC underground sewer main between the proposed South l 32"d Street
alignment and the existing Earlington sanitary sewer main. The 338 linear feet of new
sanitary sewer will extend through the subject parcel and will cross over an unnamed
Class 4 stream in the southwest corner of the site (Appendix A). The length of the
sanitary sewer line that will daylight across the Class 4 stream and associated stream
buffer is approximately 58 linear feet (Appendix A). All remaining sanitary sewer line
will be placed underground.
l 32"d Street Sewer Extension Project 1
Supplemental Stream Study and Stream Buffer Mitigation Plan
Fehrua,y 26. 2014
Grette Associates. LLC
Figure 1. King County Parcel Map (iMAP 2014)
King County Tax Parcel Map
132'"1 S1r eel Sewer Exte nsion Pro.Jee / 2
S11pple m e 11tal Stream S111dv and Stream Buffer Mitig atio n Plan
Februarv 2 6, 2014
Greife Associates . LLC
3 EXISTING CONDITIONS
T h e o nsite stream that is locat ed in the southern portion o r the subj ect p arcel o ri g in ates
from two str eams that likel y collect surface and sh all ow sub surface wat er from the
suno unding areas. These two streams join at th e intersection of S. I 32 "d Street and 801
"
Ave. South and flow east toward s the su bj ect parcel. Upstream of the conflu ence, the
two stream s a re conveyed through a serie s of culve1ts. H owever, at the conflue nce th e
s treams begin to flow in a natural c h annel. Within this n atura l stream reach , th e stream
fl ows beneath severa l public roads pri o r to bein g fully conveyed through sto1111 water
featur es and directed to the south sh o r e of Lake Washington . Within the subj ect parcel ,
th e bank full width of the channel is a pprox im ate ly 36 in ches.
3.1 Stream CJass ification
Ba sed on the City of Ren ton·s stream in ve ntory (C it y of Renton 2014) and previous
co1Tesp o ndence w ith C ity staff (Gera ld Wasser 20 10), th e stre am located alo n g the
so uth ern portion of th e s ubj ect p arcel is a C lass 4 stream . C lass 4 stream s are non-
sa lmonid bearing st ream s w ith intermittent flow s dming years of normal precipitation.
Per RMC 4.3.050L.5a, C lass 4 streams ar e subj ect to a 35 foot buffer w idth.
Within the Project area, the ex isting s tream bed is compri sed of a sand and fine/m edi um
gravel mi xture and is confined w ithin it s banks by a constructed wall of automotive tires.
T ire wa ll s a1111 or both sides of the stream c ha nn e l within t he Project area. There is no
ev id ence that th ese t ire wall s ext end ups tream o r d ownstream , and it appears that th e tire
wa ll s are o nl y present w it hin the so uthwestern portion of the subj ect parcel.
3.2 Existing Buffer C onditions
The stream buffer within th e Project area consi sts of nati ve and non-native vegetation
species that h ave developed several cano py layers. The dominant fo rest ed s p ec ies within
t he stream buffer inc lud e red alder, bl ack cottonwood, and red cedar (Thu.fa plicata ).
Beneath th e fores t vegetat io n is a sc rub-s hrub sub-canopy dominat ed by Himalayan
bl ackberry, red elderberry, sa lmonbeITy, and magnolia. Groundcover vegeta ti on wi thin
th e stream buffe r is sparse w ith an occasional sword fe rn (Po~yst ichum munitum ).
However, a long the west ern parcel bo undary, gro undcover is m ore pro minent and is
d o m i nated by Engli s h ivy and creeping butterc up (Ranunculus repens).
3.3 Topography
T he gen era l topogra ph y wi thin t he subject pa rcel cons ists of a g radu al south fac ing slope
(approx im ate ly 14 % s lope) that ext ends to the a pprox imate stream buffer boundary
(Figure 2). From the stream buff er bo undary to the left bank of the stream the
to pography inc reases to approxi mate ly 28 % s lope. The stream buffer topography
associated w ith the right bank o r the s tream is approximat e ly 58 % s lo pe. S imil a rl y to th e
left bank, the area o uts id e of the stream buffer is less st eep, approximate ly 14% s lope.
Accordi ng to the C it y of Renton·s COR Maps (C it y of Renton 2014), both s id es of the
stream are mapped as regul ated s lo pes (>25 % and :S40% slope).
13 2"// Street Sewe r Ex1e 11s io11 Project 3
S11ppl em e111al Stream Study a nd Stream Buffer Mitigatio n Plan
Fehrnmy 26. 2014
Gre l/e A ssociutes. LLC
Figure 2. Topoograph y map (City of Renton 2014).
4 A NALYS IS O F ALT E RNATIVES
The C ity of Renton, p e r RMC 4 .8. l 20 .D . l 9S, requires that any proposed proj ec t that
contains a water bod y or associated buffer area eva lu ate alternative methods of
deve lo p ing the s ubj ect parcel. Thi s secti o n desc1ib es the e ffo rts m ad e by the proj ect
pro ponent t o app ly a lt ernati ve methods to th e proposed Proj ect. An a nal ysi s o f
alternati ves is a set of s te ps d esigned to prevent avoidabl e imp ac ts t o the en vironm e nt and
the n recti fy t hose impacts th at cannot be avo ided . The step s cons idered during the
pl anning of thi s Proj ec t a re desc rib ed below.
l 32"'1 Street S e wer Exte11sio 11 Project 4
Supplem ell{a/ Stream Study and Stream B1!ffer Mi1igatiu11 Plan
Fehruary 26. 2014
Grelte Associates. LLC
4.1 Avoidance
In the case of this project, avoidance is not feasible. In order to provide functioning City
sanitary sewer service to existing properties that are currently being served by onsite
septic systems, the proposed sanitary sewer extension will require connections between
South I 32"rl Street and the existing Earlington sanitary sewer line. No feasible
alternatives exist to provide these connections without crossing the stream channel on the
subject property.
4.2 Minimize
The Proposed project has been designed to minimize impacts to the critical areas within
the subject parcel. As currently designed, the proposed Project would require a
temporary stream buffer disturbance, approximately 902 square feet in size, that would be
associated with the trenching and placement of the new 8 inch PVC sanitary sewer main.
Additionally, the pipe is proposed to cross the stream channel as close to perpendicular as
is practicable and will be elevated approximately 15 feet above the wetted channel to
avoid disturbance to the stream channel. No disturbance to the stream bed or bank is
proposed during this Project. Furthermore, the current design of the Project does not
propose removal of any existing mature trees, and Best Management Practices would be
employed to prevent disturbances to areas outside of the construction area.
4.3 Restoration
Restoration of temporarily disturbed stream buffer areas will occur upon completion of
the proposed Project (see Section 7). The proposed Project will reestablish preexisting
topography and replant the temporarily disturbed stream buffer area with native
vegetation. All non-native species removed during the placement of the sanitary sewer
line will be disposed of at an approved offsite location, and will be replaced with native
species.
4.4 Adverse Impacts
Adverse impacts to the stream or stream buffer will not likely occur as a result of the
proposed Project. As discussed below in Section 7 .2.1, the Project will employ all
necessary Best Management Practices (BMPs) to minimize erosion of disturbed surface
soils and to prevent sediment-laden runoff from entering the Class 4 stream.
Furthermore, all disturbed areas will be replanted with native vegetation.
4.5 Compensation
With the exception of the portion of the sewer pipe that will daylight, all disturbances to
the stream buffer will be temporary. The areas where the pipe will extend from the soil
surface are approximately four square feet in total size. This extremely small footprint
compared to the size of the stream buffer within the project area is anticipated to be
insignificant based on function. Therefore, no compensation is proposed for this Project.
l 32"d Street Sewer Extension Project 5
Supplemental Stream Study and Stream B14fer Mitigation Plan
February 26, 2014
Grette Associates, LLC
5 IMPACTEVALUATION
The proposed Project will result in unavoidable temporary impacts to the stream buffer
within the subject parcel. These impacts are described in detail below. The impacts
addressed in this Plan are specific to the Class 4 stream and associated buffer.
5.1 Affected Resources
As discussed above. the proposed Project will temporarily disturb approximately
902 square feet of stream buffer. However, the existing stream buffer within the Project
area does not provide quality buffer function due to the amount of invasive vegetation
and previous alterations. Although temporary, the impacts associated with the Project
would require removal of vegetation and soil disturbance within the construction area.
No mature trees will be removed during this Projecl. No impacts to the stream bed or
bank are proposed.
5.1.1 Existing Stream Buffer Functions
The stream buffer within the Project area consists of native and non-native vegetation
species that have developed a stratified forest canopy. The upper forest canopy consists
of mature deciduous and evergreen species that provide shading and nutrient loads to the
stream and stream buffer. Beneath the upper forest canopy, the sub-canopy consists of
scrub-shrub species that likely provide some shading and nutrient load as well. Due to
the topography and the existing armoring of the stream bank, the buffer vegetation likely
does not provide significant hydrologic function during seasonally heavy rain events.
During heavy rains, the understory buffer vegetation likely does not reduce the surge
effect associated with stormwater runoff in highly developed areas.
The existing stream buffer likely provides moderate wildlife habitat function due to the
presence of the stream and forested area. Wildlife functions within the stream buffer
include small mammal foraging and cover, passerine and raptor foraging, and amphibian
foraging, breeding, and refuge.
5.1.2 Impact Determination
The proposed impacts associated with the construction of the sanitary sewer line will be
temporary and will not result in a net-loss of stream buffer function. Furthermore, the
current design entails the least amount of impact to critical areas within the subject
parcel. With the exception of the daylight portion of the sanitary sewer line, no
permanent structure will be placed within the stream buffer area. The portion of the
sanitary sewer line that will daylight and span the stream will not adversely affect stream
or stream buffer function, as it will be elevated off of the ground and will not impede
existing stream or stream buffer processes. Affected critical areas by type are
summarized below in Table 1.
Table I. Proposed Critical Area Impact Summary by Type.
Stream Buffer
Sewer Line Installation 902 square feet Temporary
J 32'1d Street Sewer Extension Project 6
Supplemental Stream Study and Stream Bi{ff'er Mitigation Plan
Fehruary 26, 2014
Gretle Associates. LLC
6 MITIGATION PLAN
Mitigation will occur within the subject parcel (Appendix B, Sheet I). Actions proposed
include restoring approximately 902 square feet of stream buffer and employing BMPs
during construction.
6.1 Target Functions
Per RMC 4.3.050.3c, alterations to stream areas and associated buffers shall achieve
equivalent or greater biological and hydrological functions. The restoration of the
temporarily disturbed stream buffer area will provide greater functional value to what
currently exists in the buffer area. Currently, the buffer that will be temporarily disturbed
provides little buffer function due to existing non-native vegetation and very little ground
cover. Restoring the temporarily disturbed buffer area will provide greater vegetation
diversity and hydrological function through the planting of native shrubs and seeding of
native grasses. Establishing denser native groundcover within the disturbed area will
reduce surface stormwater runoff and filter out sediments and toxins from stormwater.
Currently, the groundcover within the forested buffer is mostly bare and likely does not
filter out significant amounts of sediment and pollutants from surface water.
6.2 Goals and Objectives
The overall goal of the mitigation plan is to restore temporarily disturbed vegetation
within the stream buffer. With the exception of where the sewer line extends out of the
ground, the exposed portion of the sanitary sewer line that will span the stream will not
have contact with the ground and thus will not impede natural stream or stream buffer
processes. Surface contact with the sewer line will be less than four square feet in size.
More specific mitigation goals include:
1. Ensure no net loss of stream buffer function;
2. Provide enhanced native plant diversity;
3. Provide enhanced water quality function.
Specific functional objectives of the Plan include:
1. Restore approximately 902 square feet of disturbed stream buffer;
2. Seed all disturbed soils within the construction area.
6.3 Mitigation Design
The intent of the mitigation actions at the subject parcel is to offset the temporary stream
buffer disturbance associated with the Project and to ensure no net loss of stream buffer
function.
6.3.1 Grading Plan
Initially, the extent of the proposed work area will be clearly marked and silt fencing will
be installed along the outer work limits. All vegetation within the areas proposed for
excavation will be mechanically removed and disposed of at an approved upland
location. Excavation, grading, and clearing limits within the stream buffer will be limited
to 7.5 feet on either side of the centerline of the 8 inch PVC sanitary sewer line.
13211d Street Se1ver Extension Project 7
Supplemental Stream Study and Stream B1~ffer Mitigation Plan
Febn,ary 26, 2014
Grette Associates, LLC
During all construction activities, Best Management Practices (BMPs) will be employed
to minimize erosion of disturbed surface soils and to prevent sediment-laden runoff from
leaving the project site. BMPs to be employed during construction may include (but are
not limited to) silt fencing and/or straw bales around the perimeter of the clearing and
grading areas, mulching areas immediately after completion of grading, and installation
of plant material as soon as practical after grading.
Once the vegetation is removed, excavation and grading will be conducted using
excavators, dump trucks, and other like equipment as needed to complete the work. All
excavated soils within the stream buffer will be cast into dump trucks for temporary
storage and reused as back fill material in the stream buffer area. At no point will
equipment extend outside of the 15 foot wide public sanitary sewer easement. Plantings
within the disturbed stream buffer area will be immediately installed once the final grade
is achieved.
6.3.2 Planting Plan
Plant installation will be perfonned in accordance with the specifications outlined in this
Plan. Any alterations to the planting plan due to site conditions will require approval
from the City of Renton prior to installation. The project proponent is only proposing
planting within the designated restoration area (Appendix B, Sheet 2).
The intent of restoring stream buffer vegetation with native grass and shrub species is to
provide greater plant diversity and water quality and hydrological functions within the
area proposed for disturbance. Sluub species will be planted on 4 to 5 foot centers and
will include Scouler's willow (Salix scouleriana), red elderberry, red-osier dogwood
(Cornus stolonifera), and cascara (Rhamnus purshiana). A dense planting schedule is
proposed based on the non-native invasive species that are present outside of the
restoration area. Over planting will provide a better opportunity for native species to
compete with non-native, invasive species.
6.3.3 Planting Schedule
The proposed planting schedule for the restoration area is presented below in Table 2.
The specific quantities of each species will be calculated during final design of the
mitigation action. In order to reduce mortality, a late fall plant installation schedule
(October -November) is preferred. Plants should not be installed during or immediately
before freezing weather. All remaining bare soils within the restoration area will be
seeded within an approved native seed mix consisting of species such as Idaho fescue
(Festuca idahoensis ssp. roemeri), blue wildrye (E(vmus glaucus), spike bentgrass
(Agrostis exerata), and red fescue (Festuca rubra), or like native species.
Table 2. Proposed Planting Schedule
·~;.i NnMJ.e;, Nafilec' ,~\'.::_. __ ,_JJ'. ':,>;-; '• .
Stream Buffer Enhancement
Seoul er' s willow Salix scouleriana 20
Red elderber~ Sambucus racemosa 6
Vine manle Acer circinaturn 20
Cascara Rhamnus nurshiana 6
1 Plant quantities will be verified following final design.
132nd Street Sewer Extension Project 8
Supplemental Stream Study and Stream Buffer Mitigation Plan
,,
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February 26. 2014
Grette Associates. LLC
All plant materials to be used on the site will be native to Western Washington and will
consist of nursery grown stock from a reputable, local dealer. Only native species
specified in the approved plant schedule are to be used; no hybrids will be allowed. Plant
substitutions must be approved by the City of Renton if specified species are not
commercially available.
Plant material provided will be typical of their species or variety; they will exhibit
normal, densely-developed branches and vigorous, fibrous root systems. Plants will be
sound, healthy, vigorous plants free from defects and all forms of infestation.
6.3.4 Preparation and Installation of Planting Materials
The landscape contractor shall verify the location of all elements of the landscape plan
prior to installation. The contractor may adjust the locations of landscape elements
during the installation period as necessary.
Circular plant pits with vertical sides will be excavated for all container stock. The pits
should be at least twice the diameter of the root system, and the depth of the pit should
accommodate the entire root system. The bottom of each pit will be scarified to a depth of
4 inches, and the pit should be thoroughly wetted prior to plant insertion to prevent capillary
stress. The planting hole shall be amended with a mixture of topsoil and organic material if
necessary to provide appropriate rooting media.
Broken roots should be pruned with a sharp instrument and rootballs should be
thoroughly soaked prior to installation. Set plant material upright in the planting pit to
proper grade and alignment. Water plants thoroughly midway through backfilling and
again upon completion of backfilling. No filling should occur around stems. Do not use
frozen or muddy mixtures for backfilling. Fonn a ring of soil around the edge of each
planting pit to retain water, and install a 2-1/2 inch layer of mulch around the base of each
container plant.
7 COMPLIANCE INSPECTION
7.1 Compliance Inspection
A compliance inspection will consist of evaluating the plantings immediately after
construction to confirm the Plan was followed and the plants were installed appropriately.
A walk-through survey will be conducted to verify that installation conforms to the
approved Plan. Photographs will be taken to document the completion of the restoration
actions.
7 .2 Compliance Inspection Report
Within 60 days of completion of stream buffer restoration, the Project proponents will
prepare and submit a compliance inspection report to the City of Renton. This report will
document the implementation of the restoration actions and describe any deviations from
the original Plan. The report will also describe any potential problems identified during
installation and any recommended remedies to be proposed to the City. Representative
photographs will be taken to further document the implementation of this Plan.
132'"1 Street Sewer Extension Project 9
Supplemental Stream Study and Stream B1{ffer Mitigation Plan
February 26, 2014
Grette Associates. LLC
8 BIOLOGIST QUALIFICATIONS
Chad Wallin
Chad Wallin is a Biologist with professional experience and training in wetland science,
wetland ecology, ecological restoration, critical area monitoring, and mitigation planning.
His work experience in the Pacific Northwest includes but is not limited to wetland and
stream delineations, habitat assessments, marine surveys, wetland and stream restoration,
wetland and stream mitigation plans, stream surveys, and related environment studies and
surveys.
Chad has earned a Bachelor's of Arts degree in Environmental Studies from the
University of Washington along with certificates in Wetland Science and Management
and Ecology Restoration through the University of Washington. In addition, Chad has
completed training for Ecology's Wetland Rating System, Ordinary High Water Mark,
and Calculating Compensatory Mitigation in Wetlands.
For a list of representative projects, please contact him at Grette Associates.
9 REFERENCES
iMAP. 2014. King County iMAP: Interactive Mapping Tool (online GIS). King County
Tax Parcel Map [map online]. Accessed [27 January 2014]. URL:
http://www. kingcounty. gov/ opera ti ons/G IS/M aps/i MAP. aspx.
City of Renton. 2014. City of Renton COR Maps (online GIS). Critical Areas Map.
Accessed [27 Janurary 2014]. URL: http://rentonwa.gov/govemment/default
.aspx?id=29886. Interactive Layers= "Streams and Slopes·'.
Gerald Wasser. 2010. Re: John Stewart Sanitary Sewer Extension, PREl0-034.
Message to markr(a1concepteng.org. 01 November 20 I 0.
13211 d Street Sewer Extension Project JO
Supplemental Stream Study and Stream Buffer Mitigation Plan
February 26. 20/4
Grette Associates. LLC
132ND STREET SEWER EXTENSION PROJECT
SUPPLEMENT AL STREAM STUDY AND STREAM
BUFFER MITIGATION PLAN
APPENDIX A: PROJECT SITE PLAN
13211d Street Sewer Extension Project A
Supp/eme11ta/ Stream Study and Stream Buffer Mitigation Plan
February 26, 2014
Grette Associates, LLC
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Supplemental Stream Study and Stream Buffer Mitigation Plan
Februwy 26, 2014
Grette Associates, LLC
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Kris Sorensen
From:
Sent:
To:
Cc:
Subject:
Hi Kris:
Fisher, Larry D (DFW) < Larry.Fisher@dfw.wa.gov>
Wednesday, April 09, 2014 7:50 AM
Kris Sorensen
Karen Walter (KWalter@muckleshoot.nsn.us)
John Stewart SS Extension/ LUA14-000453, ECF, VAR
I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject
project.
A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this
project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings.
Thank you for the opportunity to provide this information.
Larry Fisher
WDFW Area Habitat Biologist
1775 12th Ave NW Suite 201
Issaquah, WA 98027
425-313-5683
FAX 425-427-0570
Cell: 425-449-6790
<'){{}}>< <'){{}}><
1
Kris Sorensen
From:
Sent:
Karen Walter < KWalter@muckleshoot.nsn.us>
Tuesday, April 15, 2014 9:38 AM
To: Kris Sorensen
Cc: Fisher, Larry D (DFW)
Subject: RE: John Stewart SS Extension/ LUA14-000453, ECF, VAR, Notice of Application and
Proposed Determination of Non-Significance
Kris,
As a follow-up to WDFW's comments for this project, I would like to know why the City isn't burying this new sewer line
under the existing stream and if the City intends to keep this sewer line daylighted attached to ecology blocks
permanently?
Thank you,
Karen Walter
Watersheds and Land Use Team Leader
Muck/eshoot Indian Tribe Fisheries Division
Habitat Program
39015172nd Ave SE
Auburn, WA 98092
253-876-3116
From: Fisher, Larry D (DFW) (mailto:Larry.Fisher@dfw.wa.gov]
Sent: Wednesday, April 09, 2014 7:50 AM
To: Kris Sorensen (ksorensen@rentonwa.gov)
Cc: Karen Walter
Subject: John Stewart SS Extension / LUAl 4-000453, ECF, VAR
Hi Kris:
I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject
project.
A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this
project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings.
Thank you for the opportunity to provide this information.
Larry Fisher
WDFW Area Habitat Biologist
1775 12th Ave NW Suite 201
Issaquah, WA 98027
425-313-5683
FAX 425-427-0570
Cell: 425-449-6790
<'){{}}>< <'){{)}><
1
•
City of Renton Department of Community & Economic Deve,Jpment
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW({HEET
REVIEWING DEPARTMENT: town V\n rl11 . >V('5,
APPLICATION NO: LUA14-0o~· ,. , . J
COMMENTS DUE: APRIL 23, i&4 ~ '-,:, ...
DATE CIRCULATED: APRIL 9, 2014
APPLICANT: Rebecca Sauer/Santee and City of Renton PROJECT MANAGER: Kris Sorensen
PROJECT TITLE: John Stewart Side Sewer Extension PROJECT REVIEWER: .,
SITE AREA: EXISTING BLDG AREA (gross):
LOCATION: West of 8223 S 132nd St; PID 2144800535 PROPOSED BLDG AREA (gross)
SUMMARY OF PROPOSAL: The applicant, the City of Renton, is requesting Environmental (SEPA) Review and Administrative Critical
Area Variance Review for a 775 lineal foot extension of public 8-inch sewer main and associated appurtenances to S 132nd Street,
west of Renton Ave S and east of S Langston Road, from the south. The project location is within the public right-of-way of S 132nd
St and across a vacant privately owned parcel (PID 2144800535), from south to north, that has an unnamed Class 4 stream and
associated critical area buffer. The vacant parcel is 52,143 square feet (1.2 acres), and zoned Residential-14. The proposed sewer
main crosses the stream on the vacant property at the southwest corner of the project site, where the 8-inch sewer main will cross
approximately 8 feet above the stream and will be contained within an 18-inch steel casing, supported on either side of the
stream, by large concrete blocks. All nine trees on-site are proposed to be retained. Approximately 902 square feet of stream
buffer area will be impacted. A Supplemental Stream Study and Stream Buffer Mitigation Plan are provided with a stream buffer
planting plan.
A. ENVIRONMENTAL IMPACT (e.g. Non-Code} COMMENTS
Element of the Probable Probable More
Environment Minor Major Information
Impacts Impacts Necessary
Element of the Probable Probable More
Environment Minor Major Information
Impacts Impacts Necessary
Earth Housina
Air Aesthetics
Water Linht/Glare
Plants Recreation
Land/Shoreline Use Utilities
Animals Transoortation
Environmental Health Public Services
Energy/ Historic/Cultural
Natural Resources Preservation
Airport Environment
10,000 Feet
14,000 Feet
B. POLICY-RELATED COMMENTS
~~/ie_ cvzA_ /vQ,,,C~~ lo~~
We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact
e additional informa · is needed to properly assess this proposal.
4-15-li
Date
• )
c. CODE-RELATED COMMENTS
We have reviewed this application with particular attention to those areas in which we have expertise and have identified areas of probable impact
or areas where a ditional informatio
1
is n eded to properly assess this proposal.
Signature of Director or Authorized Representative Date
Washington State Dept. of Health
ATIN: Kelly Cooper
PO Box 47820
Olympia, WA 98504-7820
Renton School District
Maintenance and Operations
7812 S 124'h
Seattle, WA 98178
ng Co. Dept. of Permitting and
Environmental Review
ATIN: Steve Bottheim
Land Use Services Division
900 Oakesdale Ave SW
Renton, WA 98055-1219
Laura Murphy, Tribal Archaelogist
Muckleshoot Indian Tribe Preservation
39015 172"' Ave SE
Auburn, WA 98092
.. ng Co. Planning & Asset Management
Attn: Steve Hirschey
King Street Center
201 s. Jackson St Room 512
KSC-NR-0512
Seattle, WA 98104
King County Facilities Management Division
Real Estate Services
ATIN: Kathy Brown
500 4'h Ave Suite 800
Seattle, WA 98104
Lisa Marie McElrea
From:
Sent:
To:
Subject:
Kris Sorensen
Wednesday, April 09, 2014 11:35 AM
Lisa Marie McElrea
FW: John Stewart SS Extension/ LUA14-000453, ECF, VAR
Hi Lisa -Please add to official file. Thanks, Kris
From: Fisher, Larry D (DFW) [mailto:Larry.Fisher@dfw.wa.gov]
Sent: Wednesday, April 09, 2014 7:50 AM
To: Kris Sorensen
Cc: Karen Walter (KWalter@muckleshoot.nsn.us)
Subject: John Stewart SS Extension/ LUA14-000453, ECF, VAR
Hi Kris:
I have reviewed the Notice of Application and proposed Determination of Non-Significance-Mitigated for the subject
project.
A Hydraulic Project Approval from WDFW will be required for the aerial stream crossing proposed for this
project. Further information can be found in WAC 220-110-100 for conduit crossings, including aerial crossings.
Thank you for the opportunity to provide this information.
Larry Fisher
WDFW Area Habitat Biologist
1775 12th Ave NW Suite 201
Issaquah, WA 98027
425-313-5683
FAX 425-427-0570
Cell: 425-449-6790
<'){{}}>< <'){{}}><
1
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April 9, 2014
Josh Hobson
Department of Community and Economic Development
C.E. "Chip"Vincent, Administrator
City of Renton Wastewater Utility
1055 S. Grady Way
Renton, WA 98055
Rebecca Saur
Stantec
11130 NE 33'd PL
-Bellevue, WA-98004
Subject: Notice of Complete Application
John Stewart Side Sewer Extension, LUA14-000453
Dear Mr. Hobson and Ms. Saur:
The Planning Division of the City of Renton has determined that the subject application
is complete according to submittal requirements and, therefore; is accepted for review:
It is tentatively scheduled for consideration by the Eniti_ronmental Review Committee on
April28, 2014. Prior to that review, you will be notified if ariy additional information is
required to continue processing your appiication.
Please contact me at (425) 430-6593 if you have any questions:
--Sincerely,_
~~~ ........ .._.
Kris Sorensen
Associate Planner
cc: John Stewart/ Owner(s)
Renton City-Hall ~ 1055 South Grady Way ~ Reriton,Washington 98057 • ren't:onwa.gov
City of Renton
LAND USE PERMIT
MASTER APPLICATION
PROPERTY OWNER(S) PROJECT INFORMATION
PROJECT OR DEVELOPMENT NAME:
NAME: John Stewart South 132"' Street Sewer Main Ex1ension
ADDRESS: 8223 South 132"' Street
PROJECTIADDRESS(S)/LOCATION AND ZIP CODE:
CITY: Seattle ZIP: 98178
Project site is not addressed. Adjacent parcel address is
8223 S. 132"' Street
KING COUNTY ASSESSOR'S ACCOUNT NUMBER(S):
TELEPHONE NUMBER: 214480-0535
APPLICANT (if other than owner)
NAME: John Hobson
EXISTING LAND USE(S):
Vacant
COMPANY (if applicable): City of Renton
PROPOSED LAND USE(S):
Sewer main installation
ADDRESS: 1055 South Grady Way, 5lh Floor
EXISTING COMPREHENSIVE PLAN MAP DESIGNATION:
Urban Center North
PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION
CITY: Renton ZIP: 98057 (if applicable)
EXISTING ZONING:
TELEPHONE NUMBER: 425-430-7279 R-14
CONTACT PERSON PROPOSED ZONING (if applicable):
N/A
SITE AREA (in square feet):
NAME: Rebecca Saur Approximately 9,500 square feet (total parcel SF = 53,143)
SQUARE FOOTAGE OF PUBLIC ROADWAYS TO BE
COMPANY (if applicable): Staniec Consulting Services, Inc DEDICATED:
N/A
ADDRESS: 11130 NE 33'' Place, Suite 200
SQUARE FOOTAGE OF PRIVATE ACCESS EASEMENTS:
NIA
PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET
CITY: Bellevue ZIP: 98004 ACRE (if applicable)
NIA
TELEPHONE NUMBER AND EMAIL ADDRESS: NUMBER OF PROPOSED LOTS (if:applicable)
NIA
Rebecca.saur@stantec.com
425.289. 7373 NUMBER OF NEW DWELLING UNITS (if applicable):
NIA
C:\Users\jhobson\Desktop\masterapp-S 132nd St.doc -I . 03/11
P.JECT INFORMATION (cont.ed) ~-~--~~-~-----------~
NUMBER OF EXISTING DWELLING UNITS (if applicable): PROJECT VALUE:
N/A $280,000
SQUARE FOOTAGE OF PROPOSED RESIDENTIAL
BUILDINGS (if applicable): N/A
IS THE SITE LOCATED IN ANY TYPE OF
ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE
SQUARE FOOTAGE (if applicable): N/A
SQUARE FOOTAGE OF EXISTING RESIDENTIAL
BUILDINGS TO REMAIN (if applicable): N/A D AQUIFIER PROTECTION AREA ONE
SQUARE FOOTAGE OF PROPOSED NON-RESIDENTIAL D AQUIFIER PROTECTION AREA TWO
BUILDINGS (if applicable): N/A
D FLOOD HAZARD AREA sq. ft.
SQUARE FOOTAGE OF EXISTING NON-RESIDENTIAL
BUILDINGS TO REMAIN (if applicable): N/A D GEOLOGIC HAZARD sq. ft.
NET FLOOR AREA ON NON-RESIDENTIAL BUILDINGS (if D HABITAT CONSERVATION sq. ft.
applicable): N/A
D SHORELINE STREAMS & LAKES sq. ft.
NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE NEW
PROJECT (if applicable): N/A D WETLANDS sq. ft.
LEGAL DESCRIPTION OF PROPERTY
(Attach legal description on separate sheet with the following information included)
SITUATE IN THE NE QUARTER OF SECTION 13, TOWNSHIP 23, RANGE 04, IN THE CITY OF RENTON,
KING COUNTY, WASHINGTON
AFFIDAVIT OF OWNERSHIP
I, (Print Name/s) .._,j.,,,yµ J./,,,Bs,u,/ , declare under penalty of perjury under the laws of the State of
Washington that I am (please check one) __ the current owner of the property involved in this application or A-the authorized
representati act for a corporation (please attach proof of authorization) and that the foregoing statements and answers herein
contained nd t e info lion herewith are in all respects true and correct to the best of my knowledge and belief.
Signature of Owner/Representative
STATE OF WASHINGTON )
) ss
COUNTY OF KING )
I certify that I know or have satisfactory evidence that ::bi,o."" \,\olr., :::.0 V'\
signed this instrument and acknowledge it to be his/her/their free and voluntary act for the
uses and purpose mentioned in the instrument.
Notary Public in and for the State of Washington
Notary (Print): 'AwJo"'-r: ::::Dcu I Q
Date
My appointment expires: --=J::...../.,,l_q._./..,-c,"'o'-'-'I Bu..------------
C\Users\jhobson\Desktop\masterapp -S 132nd St.doc -2. 03111
PLANNING DIVISION
WAIVER OF SUBMITTAL REQUIREMENTS
FOR LAND USE APPLICATIONS
•. LAND USE Pl::RflJlffSUa"11rrAL 'i ',''.
RECIUIRl::MENTSi( '. '
Calculations 1
c:01p/.,a Ma:e~0rJ?isp1afi ,,
Construction Mitigation Description 2 AND 4
o~iibt B1~hi ;oPNaY'beafoatio/i ' a,, ··'a-:·,··:-a'S'\'".".,',:·:.·":a .. ,,•,a .. ·' ' .. · ·.·,,
Density Worksheet 4
Drainage Report 2
1::1~Jiiiii:i~!i: Aid,it<acturi/1;···
Legal Description 4
Map c:,( E)<isting.,$iti(Conditions4
Master Application Form 4
Plan Reductions (PMTs) 4
PosfOffice)\,pproval.~ <:
This requirement may be waived by:
1. Property Services
2. Public Works Plan Review
3. Building
4. Planning
CITY c
H:\CED\Data\Fonns-TemplatBs\Setf-Help Handouts\Planning\waiverofsubmittalreqs.xls ···N ., 06/09
PLANNING DIVISION
WAIVER OF SUBMITTAL REQUIREMENTS
FOR LAND USE APP LI CATIONS
r ""'"''"' LA:1110 us1:'PERM1isusivi1rtAL!/,• ...... ' REoUik~M~Nfs: ·· · ' ·
Plat Name Reservation 4
Wetlands Report/Delineation 4
Witele~s:n
Applicant Agreement Statement 2 AND 3
Inventory of Existing Sites ZAND,
Lease Agreement, Draft 2 AND 3
Map of Existing Site Conditions 2 AND 3
Map of View Area , AND,
Photosimulations 2 AND 3
This requirement may be waived by:
1. Property Services PROJECTNAME: Johv1 <;/.u,.rtJ¥/-)~ (:?Kf,
2. Public Works Plan Review
3. Building
4. Planning
DATE: '3/6 /1'1
H:\CED\Da1a\Fonns-Templates\Self-Help Handouts\Planning\waiverofsubmittalreqs.xls 06/D9
; ','
PLANNING DIVISION
ENVIRONMENTAL CHECKLIST
City of Renton Planning Division
1055 South Grady Way, Renton, WA 98057
Phone: 425-430-7200 Fax: 425-430-7231
r: ,• i ;1-[·". , r: ..J
PURPOSE OF CHECKLIST: >:\TON;
The State Environmental Policy Act (SEPA), Chapter 43.21 C RCW, requires all gb~~rnmental 21!)E!'!licies
to consider the environmental impacts of a proposal before making decisions. An Environmental Impact
Statement (EIS) must be prepared for all proposals with probable significant adverse impacts on the
quality of the environment. The purpose of this checklist is to provide information to help you and the
agency identify impacts from your proposal (and to reduce or avoid impacts from the proposal, if it can be
done) and to help the agency decide whether an EIS is required.
INSTRUCTIONS FOR APPLICANTS:
This environmental checklist asks you to describe some basic information about your proposal.
Governmental agencies use this checklist to determine whether the environmental impacts of your
proposal are significant, requiring preparation of an EIS. Answer the questions briefly, with the most
precise information known, or give the best description you can.
You must answer each question accurately and carefully, to the best of your knowledge. In most cases,
you should be able to answer the questions from your own observations or project plans without the need
to hire experts. If you really do not know the answer, or if a question does not apply to your proposal,
write "do not know" or "does not apply". Complete answers to the questions now may avoid unnecessary
delays later.
Some questions ask about governmental regulations, such as zoning, shoreline, and landmark
designations. Answer these questions if you can. If you have problems, the governmental agencies can
assist you.
The checklist questions apply to all parts of your proposal, even if you plan to do them over a period of
time or on different parcels of land. Attach any additional information that will help describe your proposal
or its environmental effects. The agency to which you submit this checklist may ask you to explain your
answers or provide additional information reasonably related to determining if there may be significant
adverse impact.
USE OF CHECKLIST FOR NONPROJECT PROPOSALS:
Complete this checklist for nonproject proposals, even though questions may be answered "does not
apply." IN ADDITION, complete the SUPPLEMENTAL SHEET FOR NONPROJECT ACTIONS (part D).
For nonproject actions (actions involving decisions on policies, plans and programs), the references in
the checklist to the words "project," "applicant," and "property or site" should be read as "proposal,"
"proposer," and "affected geographic area," respectively.
V:12002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc -1 -02/08
A. BACKGROUND
1. Name of proposed project, if applicable:
SOUTH 132'0 STREET SEWER EXTENSION
2. Name of applicant:
CITY OF RENTON
3. Address and phone number of applicant and contact person:
1055 S GRADY WAY
RENTON, WASHINGTON 98058
425-430-7200
KRIS SORENSEN, ASSOCIATE PLANNER
4. Date checklist prepared:
MARCH 19, 2014
5. Agency requesting checklist:
ECOLOGY, DEPT. OF
ENVIRONMENTAL REVIEW
SEPA OFFICIAL
PO B0X47703
OLYMPIA WA 98504-7703
(360) 407-6922
FAX (360) 407-6904
SEPAUNIT@ECY. WA.GOV
WASHINGTON STATE DEPARTMENT OF FISH &
WILDLIFE
P0BOX43200
OLYMPIA WA 98504-3155
(360) 902-2578
FAX (360) 902-2946
SEPADESK@DFW.WA.GOV
WASHINGTON STATE DEPARTMENT OF HEALTH
KELLY COOPER
PO BOX47820
OLYMPIA WA 98504-7820
(360) 236-3011
FAX (360) 664-8150
KELLY.COOPER@DOH.WA.GOV
WASHINGTON STATE DEPARTMENT OF NATURAL
RESOURCES
SEPA OFFICIAL
1111 WASHINGTON STREET SOUTHEAST
PO BOX47015
OLYMPIA WA98504-7015
(360) 902-2117
FAX (360) 902-1789
SEPACENTER@DNR.WA.GOV
V:\2002\active\0015\00022.000 132nd S1 Sewer\Permit\SEPA_ 132nd_20140319.doc-2 -
KING COUNTY DEPARTMENT OF PERMITIING &
ENVIRONMENTAL REVIEW
STEVE BOITHEIM
LAND USE SERVICES DIVISION
900 OAKESDALE AVE SW
RENTON, WA 98055-1219
(206) 296-7144
FAX (206) 296-7051
STEVE.BOITHEIM@KINGCOUNTY.GOV
CITY OF RENTON
MR. NEIL WA TIS
1 055 S. GRADY WAY
RENTON WA 98057
(425)430-7218
FAX (425)277-4455
NWAITS@RENTONWA.GOV
CITY OF RENTON
MR. MARK PETERSON
1055S. GRADY WAY
RENTON, WA 98057
(425)430-7000
MPETERSON@RENTONWA.GOV
KING COUNTY
PLANNING &ASSET MANAGEMENT
STEVE HIRSCHEY, UTRC CHAIR
KING STREET CENTER
201 S. JACKSON ST RM 512
KSC·NR-0512
SEA ffiE, WA 98104
206-205-0817
STEVE.HIRSCHEY@KINGCOUNTY.GOV
6.
RENTON SCHOOL DISTRICT
MAINTENANCE ANO OPERATIONS
7812 s 124'"
SEATTLE, WA 98178
425-204-4400
JOE.LAMBORN@RENTON SCHOOLS.US
KING COUNTY FACILITIES MANAGEMENT DIVISION
REAL ESTATE SERVICES
KATHY BROWN
500 4TH AVE. SUITE 800
SEA TILE, WA 98104
KATHY.BROWN@KINGCOUNTY.GOV
MUCKLESHOOT TRIBE
39015 -172ND AVE SE
AUBURN, WA 98092
(253) 931-8570
VIRGINIA.CROSS@MUCKLESHOOT.NSN.US
LAURA MURPHY
TRIBAL ARCHEOLOGIST
MUCKLESHOOT INDIAN TRIBE PRESERVATION
PROGRAM
39015 172ND AVE SE
AUBURN, WA 98092
253-876-3272
LAURA.MURPHY@MUCKLESHOOT.NSN.US
KAREN WALTER
WATERSHEDS AND LAND USE TEAM LEADER
MUCKLESHOOT INDIAN TRIBE FISHERIES DIVISION
39015172NDAVESE
AUBURN, WA 98092
253-876-3116
KAREN.WALTER@MUCKLESHOOT.NSN.US
Proposed timing or schedule (including phasing, if applicable):
SPRING/SUMMER 2014
7. Do you have any plans for future additions, expansion, or further activity related to or connected
with this proposal? If yes, explain.
THE CITY OF RENTON DOES NOT HAVE ANY SPECIFIC PLANS TO EXPAND ON THIS SEWER EXTENSION
PROJECT. THERE ARE PARCELS IN THE VICINITY OF THIS PROJECT THAT MAY WISH TO CONNECT TO THE
NEW SEWER MAIN IN THE FUTURE.
8. List any environmental information you know about that has been prepared, or will be prepared,
directly related to this proposal.
GRETTE ASSOCIATES HAS PREPARED A STREAM STUDY AND STREAM BUFFER MITIGATION PLAN, DATED
FEBRUARY 4, 2014.
9. Do you know whether applications are pending for governmental approvals of other proposals
directly affecting the property covered by your proposal? If yes, explain.
NONE
10. List any governmental approvals or permits that will be needed for your proposal, if known.
CITY OF RENTON RIGHT OF WAY PERMIT
CITY OF RENTON GRADING PERMIT
CITY OF RENTON VARIANCE
CITY OF RENTON ENVIRONMENTAL REVIEW
11. Give brief, complete description of your proposal, including the proposed uses and the size of the
project and site.
CONSTRUCTION OF APPROXIMATELY 775 LINEAL FEET OF 8-INCH SEWER MAIN AND ASSOCIATED
APPURTENANCES.
12. Location of the proposal. Give sufficient information for a person to understand the precise
location of your proposed project, including a street address, if any, and section, township, and
range if known. If a proposal would occur over a range of area, provide the range or boundaries
V:\2002\active\0015\00022.000 132nd St Sewer\Pennlt\SEPA_132nd_20140319.doc-2 -
of the site(s). Provide a legal description, site plan, vicinity map, and topographic map, if
reasonably available. While you should submit any plans required by the agency, you are not
required to duplicate maps or detailed plans submitted with any permit applications related to this
checklist.
THE PROPOSED SEWER MAIN EXTENSION IS LOCATED ALONG SOUTH 132"0 STREET, WEST OF RENTON AVE
SOUTH AND EAST OF SOUTH LANGSTON ROAD, IN THE NORTHEAST QUARTER OF SECTION 13 TOWNSHIP 23
RANGE 04 EAST, IN RENTON, WASHINGTON.
B. ENVIRONMENT AL ELEMENTS
1. EARTH
a. General description of the site (circle one); flat.I ROLLING!, hilly, steep slopes,
mountainous, other -------
b. What is the steepest slope on the site (approximate percent slope?)
THERE IS AN AREA ALONG THE EAST STREAM BANK THAT IS APPROXIMATELY 60 PERCENT SLOPE,
LOCATED AT THE SOUTH PORTION OF THE PROPOSED PROJECT SITE,
c. What general types of soils are found on the site (for example, clay, sand, gravel, peat,
muck)? If you know the classification of agricultural soils, specify them and note any
prime farmland.
THE SITE GENERALLY CONTAINS ALDERWOOD GRAVELLY SANDY LOAM & KITSAP SILT LOAM
OVERLAYING WEATHERED AND UNWEATHERED BEDROCK.
d. Are there surface indications or history of unstable soils in the immediate vicinity? If so,
describe.
No
e. Describe the purpose, type, and approximate quantities of any filling or grading
proposed. Indicate source of fill.
EXCAVATED NATIVE MATERIAL WILL BE USED AS BACKFILL WHEN POSSIBLE. IMPORTED AND
APPROVED CRUSHED GRAVEL OR FOUNDATION ROCK MAY BE UTILIZED WHEN NECESSARY TO
SUPPORT NEW FACILITY STRUCTURES. ALL EXCAVATED MATERIALS NOT UTILIZED AS BACKFILL, AS
WELL AS DISPLACED MATERIALS RESULTING FROM TRENCHING ACTNITIES, WILL BE EXPORTED TO
AN APPROVED DISPOSAL SITE PROVIDED BY THE CONTRACTOR. NO CHANGE OF ELEVATION OR
CONTOUR IS PLANNED.
f. Could erosion occur as a result of clearing, construction, or use? If so, generally
describe.
THE POTENTIAL EXISTS FOR THE MIGRATION OF SOILS AS A RESULT OF TRENCHING ACTIVITIES,
CLEARING, AND/OR OTHER RELATED CONSTRUCTION ACTNITIES. ALL EXPOSED SOIL SURFACES
WILL BE SUBJECT TO EROSIVE FORCES DURING CONSTRUCTION AND BEFORE RESTORATION
EFFORTS HAVE BEEN ESTABLISHED. TESC REQUIREMENTS WILL BE DETAILED IN THE CIVIL
CONSTRUCTION PLANS FOR THIS PROPOSAL BASED ON GEOTECHNICAL RECOMMENDATIONS AND
CITY OF RENTON REQUIREMENTS.
g. About what percent of the site will be covered with impervious surfaces after project
construction (for example, asphalt or buildings)?
V:\2002\aciive\0015\00022.000132nd St Sewer\Permlt\SEPA_132nd_20140319.doc-2 -
CONSTRUCTION OF THE PROPOSED SEWER PIPE WILL NOT ADD ADDITIONAL IMPERVIOUS SURFACE.
TWO CONCRETE BLOCKS WILL BE INSTALLED TO SUPPORT THE AERIAL CASING AND PIPE CROSSING
OF THE ONSITE STREAM, RESULTING IN APPROXIMATELY 12 SQUARE FEET OF NEW IMPERVIOUS
SURFACE.
h. Proposed measures to reduce or control erosion, or other impacts to the earth, if any:
2. AIR
TEMPORARY EROSION AND SEDIMENTATION CONTROL REQUIREMENTS WILL BE DETAILED ON THE
CONSTRUCTION PLANS FOR THIS PROJECT TO INCLUDE THE INSTALLATION OF DRAINAGE
STRUCTURE PROTECTION DEVICES AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION
WIDTHS AND DEPTHS WILL BE KEPT TO A MINIMUM DURING CONSTRUCTION. IMMEDIATE BACKFILL OF
TRENCHES, ALONG WITH TIMELY RESTORATION, WILL FURTHER REDUCE EROSION POTENTIAL.
a. What types of emissions to the air would result from the proposal (i.e., dust, automobile,
odors, industrial wood smoke) during construction and when the project is completed? If
any, generally describe and give approximate quantities if known.
DUST AND ENGINE EMISSIONS FROM CONSTRUCTION EQUIPMENT WILL BE PRESENT DURING
CONSTRUCTION.
b. Are there any off-site sources of emission or odor that may affect your proposal? If so,
generally describe.
NO
c. Proposed measures to reduce or control emissions or other impacts to air, if any:
STANDARD EMISSION CONTROL DEVICES WILL BE UTILIZED BY CONSTRUCTION EQUIPMENT. AS
NEEDED, DUST CONTROL MEASURES WILL BE IMPLEMENTED TO LIMIT DUST DURING CONSTRUCTION.
3. WATER
a. Surface Water:
1) Is there any surface water body on or in the immediate vicinity of the site (including year-
round and seasonal streams, saltwater, lakes, ponds, wetlands)? If yes, describe type
and provide names. If appropriate, state what stream or river it flows into.
YES, THERE IS A CLASS 4 UN-NAMED STREAM ALONG THE SOUTHERN PORTION OF THE PROJECT
SITE.
2) Will the project require any work over, in, or adjacent to (within 200 feet) the described
waters? If yes, please describe and attach available plans.
YES, THE PROPOSED SEWER MAIN WILL CROSS THE STREAM AT THE SOUTH WEST CORNER OF THE
PROJECT SITE. THE 8-INCH SEWER MAIN WILL CROSS APPROXIMATELY 8 FEET ABOVE THE CREEK
AND WILL BE CONTAINED WITHIN AN 18-INCH STEEL CASING. THE SEWER MAIN AND CASING WILL BE
SUPPORTED ON EITHER SIDE OF THE STREAM BY 4-FOOT WIDE BY 1.5-FOOT DEEP BY 2-FOOT TALL
CONCRETE BLOCKS. THE CONCRETE BLOCK ON THE EAST SIDE OF THE STREAM WILL BE LOCATED
WITHIN THE 35-FOOT STREAM BUFFER.
3) Estimate the amount of fill and dredge material that would be placed in or removed from
surface water or wetlands and indicate the area of the site that would be affected.
Indicate the source of fill material.
V:\2002\active\0015\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-3 -
NONE
4) Will the proposal require surface water withdrawals or diversions? Give general
description, purpose, and approximate quantities if known.
No
5) Does the proposal lie within a 100-year flood plain? If so, note location on the site plan.
No
6) Does the proposal involve any discharges of waste materials to surface waters? If so,
describe the type of waste and anticipated volume of discharge.
No
b. Ground Water
1) Will ground water be withdrawn, or will water be discharged to ground water? Give
general description, purpose, and approximate quantities if known.
SHALLOW GROUNDWATER MAY BE WITHDRAWN AS NECESSARY TO DEWATER THE GROUND WHERE
TRENCHING OCCURS AT OR BELOW THE WATER TABLE. ANY WITHDRAWN WATER (UNKNOWN
QUANTITY) WILL BE ROUTED THROUGH A SEDIMENTATION/DEWATERING FACILITY TO REMOVE
EXCESS SEDIMENT AND THEN WOULD LEAVE THE SITE VIA THE EXISTING NATURAL DRAINAGE
COURSE OR THE EXISTING STORM DRAINAGE SYSTEM.
2) Describe waste material that will be discharged into the ground from septic tanks or other
sources, if any (for example: Domestic sewage; industrial, containing the following
chemicals ... ; agricultural; etc.). Describe the general size of the system, the number of
such systems, the number of houses to be served {if applicable), or the number of
animals or humans the system(s) are expected to serve.
NONE
c. Water Runoff (including storm water):
1) Describe the source of runoff (including storm water) and method of collection and
disposal, if any (include quantities, if known). Where will this water flow? Will this water
flow into other waters, If so, describe.
RUNOFF CONSISTING OF STORM WATER AND TEMPORARY DISCHARGE FROM DEWATERING ACTIVITIES
RESULTING FROM THE CONSTRUCTION OF THIS PROJECT WILL NOT PERMANENTLY CHANGE THE
HYDRAULIC CHARACTERISTICS OF THE PROPOSAL SITE. RUNOFF QUANTITY AND QUALITY CONTROL
MEASURES WILL BE IMPLEMENTED DURING CONSTRUCTION AND BEFORE RESTORATION EFFORTS
HAVE BEEN ESTABLISHED TO REDUCE AND CONTROL RUNOFF WATER IMPACTS.
2) Could waste material enter ground or surface waters? If so, generally describe.
NO
d. Proposed measures to reduce or control surface, ground, and runoff water impacts, if
any:
V:\2002\adive\0015\00022.000 132nd S1 Sewer\Permit\SEPA_132nd_20140319.doc-4 -
PROPOSED MEASURES INCLUDE INSTALLATION OF DRAINAGE STRUCTURE PROTECTION DEVICES
AND FABRIC FILTERS. ALL OTHER TRENCH AND EXCAVATION WIDTHS AND DEPTHS WILL BE KEPT TO
A MINIMUM DURING CONSTRUCTION.
4. PLANTS
a. Check or circle types of vegetation found on the site:
___x_ deciduous tree: alder, maple, aspen, other
___x_ evergreen tree: fir, cedar, pine, other
___x_ shrubs
___x_ grass
__ pasture
__ crop or grain
_x_ wet soil plants: cattail, buttercup, bullrush, skunk cabbage, other
__ water plants: water lily, eel grass, milfoil, other
__ other types of vegetation
b. What kind and amount of vegetation will be removed or altered?
THE PROJECT SITE IS GENERALLY GRASSY, WITH INCREASED VEGETATION CLOSER TO THE STREAM,
WHICH CONSISTS OF BLACKBERRY, ELDERBERRY, SALMONBERRY, IVY, CREEPING BUTIERCUP, AND
MAGNOLIA. CONSTRUCTION OF THE SEWER PIPE WILL REQUIRE THE REMOVAL OF SOME GRASS,
AND UNDERBRUSH SPECIES.
c. List threatened or endangered species known to be on or near the site.
NONE KNOWN
d. Proposed landscaping, use of native plants, or other measures to preserve or enhance
vegetation on the site, if any:
A PLANTING RESTORATION PLAN WILL BE PREPARED FOR THIS PROPOSAL. PRIOR TO
CONSTRUCTION, CLEARING AND GRADING LIMITS WILL BE DELINEATED ON PLANS AND ONSITE TO
LIMIT VEGETATION REMOVAL AND/OR DISTURBANCE. TREE PROTECTION FOR AFFECTED TREES WILL
BE SHOWN ON THE PROJECT PLANS.
5. ANIMALS
a. Circle any birds and animals, which have been observed on or near the site or are known
to be on or near the site:
Birds: hawk, heron, eagle, ~ongbirdij, other _______ _
Mammals: deer, bear, elk, beaver, other _________ _
Fish: bass, salmon, trout, herring, shellfish, other _____ _
b. List any threatened or endangered species known to be on or near the site.
NONE KNOWN
c. Is the site part of a migration route? If so, explain
UNKNOWN
d. Proposed measures to preserve or enhance wildlife, if any:
V:\2002\aclive\0015\00022.000 132nd St Sewer\Permi!\SEPA_ 132nd_2014D319.doc-5 -
DOES NOT APPLY
6. ENERGY AND NATURAL RESOURCES
a. What kinds of energy (electric, natural gas, oil, wood stove, solar) will be used to meet
the completed project's energy needs? Describe whether it will be used for heating,
manufacturing, etc.
NONE
b. Would your project affect the potential use of solar energy by adjacent properties? If so,
generally describe.
NO
c. What kinds of energy conservation features are included in the plans of this proposal?
List other proposed measures to reduce or control energy impacts, if any:
NONE
7. ENVIRONMENTAL HEALTH
a. Are there any environmental health hazards, including exposure to toxic chemicals,
risk of fire and explosion, spill, or hazardous waste, that could occur as a result of this
proposal? If so, describe.
THERE IS A POTENTIAL RISK FROM THE HAZARDS ASSOCIATED WITH MACHINERY OPERATION AND
GENERAL CONSTRUCTION PRACTICES, SPILLS OF MACHINE FLUIDS, RISK OF FIRE AND EXPLOSION
AND OTHER SIMILAR, NORMAL, CONSTRUCTION HAZARDS EXIST.
1) Describe special emergency services that might be required.
NONE ARE ANTICIPATED. IN THE EVENT OF AN EMERGENCY, LOCAL FIRE, AID OR RESCUE SERVICES
AND PERSONNEL MAY BE REQUIRED.
2) Proposed measures to reduce or control environmental health hazards, if any:
TRENCH BOXES, BRACING, SUMP PUMPS AND OTHER ASSOCIATED CONSTRUCTION SAFETY
EQUIPMENT AND PROCEDURES WILL BE UTILIZED DURING CONSTRUCTION TO REDUCE THE
POTENTIAL FOR PERSONAL INJURY. SOUND ENGINEERING AND CONSTRUCTION TECHNIQUES WILL
ENSURE THAT THE SEWER MAIN AND ASSOCIATED APPURTENANCES ARE INSTALLED PROPERLY
DURING CONSTRUCTION, USE OF CONTAINMENT MEASURES AND/OR MONITORING OF MOVEMENT
OUTSIDE OF BUFFERS WILL BE REQUIRED BY THE CONTRACTOR DURING REPAIR OR MAINTENANCE
OF CONSTRUCTION EQUIPMENT.
b. Noise
1) What types of noise exist in the area which may affect your project (for example: traffic,
equipment, operation, other)?
NONE
V:\2002\active\0015100022.000132nd St Sewer\Permit\SEPA_132nd_2D140319.doc-6 -
2) What types and levels of noise would be created by or associated with the project on a
short-term or a long-term basis (for example: traffic, construction, operation, other)?
Indicate what hours noise would come from the site.
SHORT TERM
CONSTRUCTION EQUIPMENT WOULD BE OPERATED DURING NORMAL WORKING HOURS DURING THE
CONSTRUCTION PHASE OF THIS PROPOSAL, UNLESS APPROVED OTHERWISE BY PERMITTING
AGENCIES.
LONGTERM
THERE WILL BE NO LONG-TERM NOISE IMPACTS RESULTING FROM THIS PROJECT.
3) Proposed measures to reduce or control noise impacts, if any:
CONSTRUCTION SCHEDULES WILL BE LIMITED TO NORMAL WORKING HOURS TO REDUCE
NOISE IMPACTS TO SURROUNDING RESIDENTIAL AREAS.
8. LAND AND SHORELINE USE
a. What is the current use of the site and adjacent properties?
RESIDENTIAL AND COMMERCIAL
b. Has the site been used for agriculture? If so, describe.
UNKNOWN
c. Describe any structures on the site.
NONE
d. Will any structures be demolished? If so, what?
NO
e. What is the current zoning classification of the site?
R-14 RESIDENTIAL 14 DWELLING UNITS PER ACRE
f. What is the current comprehensive plan designation of the site?
URBAN CENTER NORTH (uc-N)
g. If applicable, what is the current shoreline master program designation of the site?
DOES NOT APPLY
h. Has any part of the site been classified as an "environmentally sensitive" area? If so,
specify.
YES, THERE IS AN UN-NAMED CLASS 4 STREAM ON THE PROJECT SITE.
i. Approximately how many people would reside or work in the completed project?
V:\2002\active\0015\00022.000 132nd St Sewer\Permlt\SEPA_ 132nd_20140319.doc-7 -
NONE
j. Approximately how many people would the completed project displace?
NONE
k. Proposed measures to avoid or reduce displacement impacts, if any:
DOES NOT APPLY
I. Proposed measures to ensure the proposal is compatible with existing and projected
land uses and plans, if any:
THE PROPOSED PROJECT IS IDENTIFIED IN THE CITY OF RENTON FACILITIES PLAN, WHICH
DESIGNATES THE PROJECT AS A FUTURE SERVICE IMPROVEMENT PROJECT.
9. HOUSING
a. Approximately how many units would be provided, if any? Indicate whether high, middle,
or low-income housing.
NONE
b. Approximately how many units, if any, would be eliminated? Indicate whether high,
middle, or low-income housing.
NONE
c. Proposed measures to reduce or control housing impacts, if any:
DOES NOT APPLY
10. AESTHETICS
a. What is the tallest height of any proposed structure(s), not including antennas; what is
the principal exterior building material(s) proposed.
NOT APPLICABLE
b. What views in the immediate vicinity would be altered or obstructed?
NOT APPLICABLE
c. Proposed measures to reduce or control aesthetic impacts, if any:
NOT APPLICABLE
11. LIGHT AND GLARE
a. Whal type of light or glare will the proposal produce? What time of day would it mainly
occur?
NONE
b. Could light or glare from the finished project be a safety hazard or interfere with views?
V:\2002\active\0015\00022.000 132nd St Sewer\Perm1t\SEPA_132nd_2014D319.doc-8 -
NOT APPLICABLE
c. What existing off-site sources of light or glare may affect your proposal?
NONE
d. Proposed measures to reduce or control light and glare impacts, if any:
NOT APPLICABLE
12. RECREATION
a. What designated and informal recreational opportunities are in the immediate vicinity?
EARLINGTON PARK IS LOCATED LESS THAN A MILE FROM THE PROJECT SITE.
b. Would the proposed project displace any existing recreational uses? If so, describe.
NO
c. Proposed measures to reduce or control impacts on recreation, including recreation
opportunities to be provided by the project or applicant, if any:
DOES NOT APPLY
13. HISTORIC AND CULTURAL PRESERVATION
a. Are there any places or objects listed on, or proposed for, national state, or local
preservation registers known to be on or next to the site? If so, generally describe.
NONE KNOWN
b. Generally describe any landmarks or evidence of historic, archaeological, scientific, or
cultural importance known to be on or next to the site.
NONE
c. Proposed measures to reduce or control impacts, if any:
DOES NOT APPLY
14. TRANSPORTATION
a. Identify public streets and highways serving the site, and describe proposed access to
the existing street system. Show on site plans, if any.
THE PROPOSED PROJECT CAN BE ACCESSED FROM THE EAST VIA RENTON AVENUE SOUTH AND
FROM THE WEST VIA SOUTH LANGSTON ROAD OR 80'" AVENUE SOUTH.
b. Is site currently served by public transit? If not, what is the approximate distance to the
nearest transit stop?
YES, THE CLOSEST TRANSIT STOP IS LOCATED LESS THAN A HALF MILE FROM THE PROJECT SITE
AT THE INTERSECTION OF SOUTH 132"' STREET AND RENTON AVENUE SOUTH.
V:\2002\active\0015\00022.000 132nd S1 Sewer\Permit\SEPA_132nd_20140319.dcc-9 -
c. How many parking spaces would the completed project have? How many would the
project eliminate?
NONE
d. Will the proposal require any new roads or streets, or improvements to existing roads or
streets, not including driveways? If so, generally describe (indicate whether public or
private?
NO
e. Will the project use (or occur in the immediate vicinity of) water, rail, or air transportation?
If so, generally describe.
NO
f. How many vehicular trips per day would be generated by the completed project? If
known, indicate when peak volumes would occur.
NONE
g. Proposed measures to reduce or control transportation impacts, if any:
DOES NOT APPLY
15. PUBLIC SERVICES
16.
a. Would the project result in an increased need for public services (for example: fire
protection, police protection, health care, schools, other)? If so, generally describe.
NO
b. Proposed measures to reduce or control direct impacts on public services, if any.
a.
b.
DOES NOT APPLY
UTILITIES
Circle utilities currently available at the site: ELECTRIC! • !NATURAL GAS, WATEij, 8EFUS§
~ERv1cEI, ~ELEPHONE!, SANITARY SEWER, EPTIC SYSTE , other.
Describe the utilities that are proposed for the project, the utility providing the service,
and the general construction activities on the site or in the immediate vicinity which might
be needed.
INSTALLATION OF THE NEW 8-INCH SEWER MAIN WILL REQUIRE EXCAVATION OF APPROXIMATELY 8-
FOOT TO 10-FOOT DEEP TRENCHES. FACILITIES INCLUDE 8-INCH SEWER MAIN PIPE, 18-INCH STEEL
CASING, MANHOLE INSTALLATION, AND ASSOCIATED APPURTENANCES, IN ADDITION TO BACKFILL
AND RESTORATION. UTILITY SERVICES WILL BE PROVIDED BY THE CITY OF RENTON.
C. SIGNATURE
I, the undersigned, state that to the best of my knowledge the above information is true and
complete. It is understood that the lead agency may withdraw any declaration of non-significance
that it might issue in reliance upon this checklist should there be any willful misrepresentation or
willful lack offull disclosure on my part.
Proponent:
Name Printed:
Date:
V:\2002\active\0015\00022.000 132nd St Sewei\Permit\SEPA_ 132nd_20140319.doc-10 -
' .
VICINITY MAP
SOUTH 132"0 STREET SEWER MAIN EXTENSION
V:\2002\active\0615\00022.000 132nd St Sewer\Permit\SEPA_ 132nd_20140319.doc-11 -
City of Renton
TREE RETENTION
WORKSHEET
1. Total number of trees over 6" in diameter1 on project site: 1. -"'9 ___ trees
2. Deductions: Certain trees are excluded from the retention calculation:
Trees that are dead, diseased or dangerous2 --"-0 __ trees
Trees in proposed public streets O trees
Trees in proposed private access easements/tracts O trees
Trees in critical areas3 and buffers O trees
Total number of excluded trees:
3. Subtract line 2 from line 1:
2.
3.
__ _,O'----trees
__ _,9,,_ __ trees
4. Next, to determine the number of trees that must be retained4. multiply line 3 by:
0.3 in zones RC, R-1, R-4, or R-8
0.1 in all other residential zones
0.05 in all commercial and industrial zones 4. __ _,0...,..:::.9 __ trees
5. List the number of 6" or larger trees that you are proposing 5 to retain 4 :
5. 9 trees
6. Subtract line 5 from line 4 for trees to be replaced:
(If line 6 is less than zero, stop here. No replacement trees are required).
6. ---·-=8..,_.1,..__ trees
7. Multiply line 6 by 12" for number of required replacement inches:
7. ______ inches
8. Proposed size of trees to meet additional planting requirement:
(Minimum 2" caliper trees required) 8. -------inches
9. Divide line 7 by tine 8 for number of replacement trees 6 :
(if remainder is .5 or greater, round up to the next whole number)
1
· Measured at chest height.
9.
per tree
trees -------
2· Dead, diseased or dangerous trees must be certified as such by a forester, registered landscape architect, or
certified arborist, and approved by the City.
3· Critical Areas, such as wetlands, streams, floodplains and protected slopes, are defined in Section 4-3-050 of
the Renton Municipal Code (RMC). .. 'p· · ··, ... _, . v•1-· " ,, ,,··r,
4 · Count only those trees to be retained outside of critical areas and buffers. · '· · \ .. ,... r-t V L ,_)
5 · The City may require modification of the tree retention plan to ensure retention of the maximum numlJir /5f O 4 2 0 f 4
trees per RMC 4-4-130H7a
I.I. Inches of street trees, inches of trees added to critical areas/buffers, and inches of trees retaine~/~l~\~~~ft F( Nro N
are less than 6" but are greater than 2~ can be used to meet the tree replacement requirement · ",'.,!'v:/\1(-: !\'\ii,'.~/O\;
V:\2002\active\0015\00022.000 132nd St Sewer\Permit\TreeRetentionWorksheet.doc 12108
0 100 200 Feet
NEIGHBORHOOD DETAIL MAP
CITY OF RENTON
SOUTH 132ND STREET SEWR EXTENSION PROJECT
.. ,. .... ~· ..
/fetu'rn Address:
,: City Cle;~·,_ Clffice
:' qty of iie'ntoi(.
:' .fOSS South Grady Way
. ·Renton, WA 9~057 _ .... , .
11111111111111111
20131219000501
ClTY OF RENTON EAS 7S.00
PAGE-Hl OF 004
lZ/19/2013 10:19
KXNG COUNTY, UA
. 'Title: Utilities .Eas11inent .{ . ,.-'pr<>perty Tax Parcel Number: 214480-0535
Pn,je(!t, f.flt: #~--,:"'. ;:..}· , . Pl'oi~H~,!nme: Sourh 13111 Street s~w~r Extension
Grantor(s): -\ ..... ,_ ./·· ·-' cjra.n.t~(.!):
I. John M. Ste,.;,;~, •s h_ii sep~·fute esdite .-· ··· i ./Ciry·nr Renton, o Municipal Corporation .... :· . . ,:
LEGAL DESCRIPTION:
'.···,I -' , ( '\ i'; ; '
LJ'r-·' ~--·j \/ t"· 1 /
:, '\ ";,., ,,< , ) ~' •a-·· \ne•
:\PF. ll 4 Z0 1A
That portion of LoL, 4 and S; .. Blik 20 of J,l_ihgtoQ·Actie Tra;ts, .. ;;i,t~t recorded in Volume 15 of
Plats. Page 84. Records ofKiiig'Co\(rity, Was!iingt<in. furt~ iles.\itlbe¥as follows:
;. ,. . .,' .. ,,, :' ' .,:
,-A.15.0-foot ~,de strip of laud lyl~;{5 f~t oi=n~ide of~e rot'to\j'l~;-~;;;..i,~d line: _/'-...
• ' • ·:.. ' •' ::' ··1~;,, .... '. ".:, / •
Beginning at a point on the north lin~--ih=r •. a~o .. 6eing.-:lhe ~uth'_~ih or'soutt{i 32~
sti~. said point lying 7 .5 feet easterly, .-.·;,;;,.sured .~ug iid nortli'ifuc, ~m Ifie ru>tthwe<t
· .... co"'*r thereof; '"'-·-.• / / -:"_ ... ""} ./· / .-:·'
.:' Thenhe South OJ' 17' 52" West, parallel to the we.<t lioe tkre;f, 116.81(~1/ : :: ·_. .. ,,: ,• ,
·: Tbfnc~-Slllllh._)6' 31' 31" Eas1, 53.00 feet;
, , f~~~e SOUlh ~
1
1·•. IT 53" Wes1, parallel to the west line thereof, 136.53\,c1:/;,,ore or less. to
'.-·· the so~th litje thereof and the terminus of this centerline desc:riplion.
;,:j;· situaie int. c;;t; ofltctit~:.· ~~~~iy ~f King, State of Washington.
• ···:, .... c' _....,:r/:· ...... , .
...-
,, ...... ·
... ,, .. , .. ····'
Page 1
...
,.v•
Property Tax Parcel Number:214480-0535
Project N3m~: South n2 Street Stn·er Extension
Grnntll<'(s):
J. Ci of Renton, a Munici oration
./ . . / ,,,,•' /: :; _;=::.:.::/ , .• ,./'
._;rt,l'u .s'':li~· Grn~ll<•T{s).~ for ~"~-:~fo consi!)~•uim_!..(\r'fnttt~.al Pcnc:tits, du by th~~ 1>n:sroL, grunt.
:!~argain •. :si,:11, ~nnv~f, an(r w'd.~ts unt~· ib,~ .. ;iaid Gn:u\tcpi,,it,: :!iU1.'4:C:SSDn1 1tnd assigns,. an
eil.~mt:nl for P\lbmr ~ti1;,fc.~ c)°tu:lu~.~,;.bt«. wiqa1~1~4. -~:~ suriitce water) whh ni.-ccssar:y
appuncniJt~c~ over. ~·n'd1.T~::~·hrou1h:":u#o:,1:; ond .. .'.upnn·:tl!.~ 1,t~llowing de:i-cribcd property (lhe
righi-of-wa)':t tn K\n& Couriry. \lftlshingfon, mar{~!~U1brly described on page I .
for the pul'f>~·-~·~'f con.st':~crh:,l rect,~~ruct;Jh~'.;:~~~aUi.~~ r~'(lairing. replacing. enlarging,
opmting and maintoini~g_uti_litie< on~:~1m1iY,ipC?Ji"ni:s, :i-~du~ng·b1tf}1n1 limited 19~ \"t('I'. sewer
and s1ann drainage lint:!-, ,Ogtther ~kh lhc_,fightJi'r;n~.-Und cgre!3 l~r~to wi1~i.u1 p~iClr
ini.tilulinn of any sui1 nr pmcccdifl#S rifl~~ 1t~tfwith~fo1:fRcunii;i&,~11y lcjal ob~ig··~tis or liahiliJy
11,crefcr. Following the inilial coJlst~~iion ~f hs .t"i.cUhies, Gnln(~ ~ frqCittit;su:· to 1irnc
cnn!iitnact !iUch a.dditinnal foc:ilities n;t it ~y rcq~i~; ~~ nisc~Cill/is Wlntcd subj'"-cl to the
fallowi~g t4.."nm and cauditions: ··:·.··:./ / (( . _./ ./ _...~··•, ..... ·.: ... ,.
I. _..,,;..;:~tee shall~ upun cmnplctinn or any ~~ wi;~i·~'~h~:pruty t:-0:ma· . .b)' }be::. . ..
cascmci'll,;.~1orc the: ~1.1rface of the ca~cnl, aMil:!J')' pri)!a'.ie !fnproyjmen1.~,,q?Sforbed.:
or destruyod_ during n:ecu1iun of the work. as ncuif' afPrac~·able_._tO lh~''C0ndii.iOn---":
tl!tr-.wcre i~':immediatdy bcfnn: c:ommcnccmcnt of the worl.f;9r e9tl)' ~Y 1hc: Os,an.t:ee.
/2. G·T11111orl shall '.~tain the right 10 use the surface or lite casement -~liong\1ti :.u~1 u~:docs /
:· · nol irrlcrrcrc/~ith the cucment righ1s granted lo lhc Grantee. · .. ··
.-·-" Grunliir shalf no1, hnwcvcr. have lhc right 10: ···,, , ....
/ a.,:"· En::~l or.m'ain\ain. any building,; or stnac~ within lhe eoscmcnt; ot ·,.: . . ..
J{ P.tiin~.·fr'ecs. shrut;~::or \'C'gcralion having deep rOOI pttttems which may cnuH 'dat?µlg~ I.I~ nr intcrl~rc with
· .,.. .dic.~lilitics..ffl. he p(il.ccd within the t:Dscancnt by the Gramcc: or ·-:·.·,: .. /
c. _ / O_~i:lop,/htncikpe_f ar bcauiir)' the easement area in any way Y.-hich would
····=·-, .• , •••. Qflrcosp~abll"in4,..~ .~htfCOSJ~~r, 1hc Gmn1cc of ftSlC1ring the eu.semenl area and
ainy pil,vatcJinproicn,i:nts 1hercifl: ...
d. Oig. rumn:i ot J1.~dn11 olher.fnrms'.:9f conslruction activities on 1hc
pti:U)cny whig.l'"jiuld dji'.iurb.'ithc tj:lmppCOw:i or uncanh Grantl'e's racilitic,
on ifl~ risht,Dr-~y. or;--c:ndanger·:q;e lflteral ,SUppo~ facilities.
,. BlaR within fifteen (I~) fit:el or 1hcrigf11-of-.WDy. _: ·. ··: ..
This l.."IL"Cffi~U sbalJ nm wid1 ·:~C 11.~lJ' ~~ibccl"h~, and·.shal!/be b~ding Upol\ lhe
pilni~. their heirs. biUC(."t."SSur!J:·:1,~ interest ~-nd -~S$ign.i. Gq1i11nrs:i:o~an"(~a1 tliey arc the
ID\vful owners nf rhe: nbl'l\l'C proJiet'IU-nhd 1hit rher.° h11v1;{ a sm:id and la\fju!' riS"ht. 10 execure
this agreement. · : · · ··
By 1hi!'. convqinncc. Granlor will wumml an~ d~fepd the, S4i.le h~b)lmed~ unto it,'~ Grir1-_1cc
against all and every pc:r,;on or personR, whorn~(14,..~.4~, la~fuHY cl11~Ulg ~ to ~<n:i the :
some. Thi5 conv'-"")''mc:c shall hind the h1.--irs, ex~u1ofS.-.11Chni1limra.t"nrs o.r,:d n.c;..,i;,1gn5 forevi:I'. '¥!§_!: W · REOF, said 2~M.~r hn, cau,od this in~l<U!\1~" :~~•~,'~°": . ..;:hi_:·.:_.' ./i''.;:·· ·.
Page 2
:Titl-~: UtHitles Easement Property Tax Parcel Number; 214480-0535
PrbJect FIie a: Project Name: South 132 Street sewer Extension
INOl~_VAI. F!l~M 0~ .-
ACKNOWiEOGME"7 . , ... i .
. ···' .. ~•· ·,
. :, .,.•':
. ··-., -···
·: ........
STATE,Of,v,iAsHIN~fqN., ) SS
COUl'/tYOF KIN.G"'• i i )
I c;erofy:ihat I kndw. or l\,_ve .• atisfactorv evldence that J:e b o fit? tCt S
,/ sih,.qc::,,..-,.;f-/, ... :·,,/ s;sned this Instrument ind
/ackncWiedc:~·WtQ.-b! hi$7her/their free and voluntary act for the uses and
· pur?(l!ses ~~ttOrit=d ln.-ihe lnstn1ment.
~ i -· -· •,•
-~ ..
Page 3
···,'
' '
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.-....
--:· __ . · ... -------. .:::::--:!!._1~!f __ --•
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9.. ··1 -··. f
I
7~ ~.a,111;11. J
J'l'<lfl,,ft.Jlo
I
(1w, I ---~, ..: ··.·.
30
-------... __
.'.'d-......... _
: b :'··: ...... ,
...J ' :· .. ., .... _, .
~
N
0 30
SCALE IN FEET
j-·:~==~~:::r:i
SD
SURVEY CR PROPERTY. PYY!:fER IP . . : . ; . . .....
EASEMENT AREA=4600i SQ.FT.
()
Stantec
CITY OF RENTO'N .' · ·· ...
PERMANENT EASEM~NT.-.'· •-:
K.C.TAX PARCEL 214480~0035 ... ,.
Page4
·, :-:-.
,:"'"""" .. :1
'
After recording return document to:
City Clerk ' . .! \'.
City of Renton
1055 S. Grady Way
Renton, WA 98057
' (\ ._
-1·. I' c\, )y
\\: .1 J .
DOCUMENT TITLE:
TEMPORARY CONSTRUCTION EASEMENT
RECORDING NUMBER OF DOCUMENT(S) ASSIGNED OR RELEASED:
N/A
GRANTOR(S):
John M. Stewart, as his separate estate
GRANTEE(S):
CITY OF RENTON, a Washington municipal corporation
ABBREVIATED LEGAL DESCRIPTION:
Portion of NE 14, Section 13, Township 23 North, Range 4 East, W.M., King County, WA
ADDITIONAL LEGAL DESCRIPTION ON PAGE(S):
N/A
ASSESSOR'S TAX PARCEL NO(S):
214480-0535
TEMPORARY CONSTRUCTION EASEMENT
Granter, John M. Stewart, as his separate estate ("Granter"), for and in consideration of
mutual benefits, does by these presents, grants, bargains, sells, conveys, and warrants unto
Grantee, City of Renton, a Washington municipal corporation ("Grantee"), its successors and
assigns, permission to use for public purposes with necessary appurtenances over, under,
through, across and upon the following described real estate, , for Temporary Construction
purposes, situated in King County, Washington:
A temporary construction easement over and across the following described area for the
purpose of construction a new sanitary sewer main:
LEGAL DESCRIPTION -That portion of Lot 5, Block 20 of Earlington Acres Tracts, as
per plat recorded in Volume 15 of Plats, Page 84, Records of King County,
Washington, further described as follows:
The West 50 feet of Lot S, Block 20 of Earlington Acre Tracts.
Page 1 of 3
Grantee shall hold harmless, indemnify and defend Grantor, its officers, employees,
residents and agents, from and against any and all claims, actions, suits, liability, loss,
expenses, damages and judgments of any nature whatsoever, including costs and attorney's
fees in defense thereof, for injury, sickness, disability or death to persons or damage to
property or business, caused by or arising out of Grantee's negligent or intentional acts,
errors or omissions in Grantee's use of this easement and placement of Grantee's facilities
thereon and arising during Grantee's construction of its facilities; PROVIDED, HOWEVER, that
Grantee's obligation hereunder shall not extend to injury, sickness, death or damage caused
by or arising out of the sole negligence of Grantor, its officers, employees, residents or
agents; PROVIDED FURTHER, that in the event of the concurrent negligence of Grantor and
Grantee, Grantee's obligations hereunder shall apply only to the percentage of fault
attributable to Grantee, its officers, officials, employees or agents; Grantee expressly and
specifically agrees that its obligations under this paragraph extend to any claim, action, suit,
liability, loss, expense, damage and/or judgment brought by or on behalf of any of its
appointed or elected officials, employees, residents or agents. For this purpose, Grantee,
herby expressly and specifically waives, with respect to Grantor only, any immunity that
would otherwise be available against such claims under the Industrial Insurance provisions
of Title 51 RCW.
Grantee shall require its contractors, subcontractors and suppliers of any tier to defend,
indemnify and hold harmless Grantor, its officers, employees, residents and agents from any
and all claims, injuries, damages, losses or suits, including attorney's fees and costs, arising
out of or in connection with the design, development and construction of the Grantee's
publicly owned sanitary sewer lift station to be placed within said easement, except for
injuries and damages caused by the sole negligence of the Grantor.
This permit shall become effective upon execution by the Grantor from date hereof, and
shall terminate on December 31, 2014.
IN WITNESS WHEREOF, said Grantor has caused this instrument to be executed this
__£_,_day of 22~~ . 20 I -3
GRANTOR:
JBh11 M. Stewart, ~s his separate estate
Page 2 of 3
Notary Seal must be within box STATE OF WASHINGTON
COUNTY OF KING
lss
I
I certify that I know or have satisfactory evidence that~...,_.='-'-----
(\! o cc i > 51 :{-1-:9 P-1[-\ signed this instrument and
acknowledged it to be his/her/their free and voluntary act for the uses and
purposes mentioned in the instrument
,. " -j,/~ ro-u:cv~
Notary Public in and for the State of Washington
Notary (Print) :\.l 1.0 e.r" .
T:. )C~,,re-:,'. A4 u..s~ ol'1 1 ;)Olt
-p.,....\~c\ y .?ct'm.b-4--bJ o!0\3
Page 3 of 3