HomeMy WebLinkAboutWWP2700510(1) r �
BEGINNING OF
FILE
FILE TITLE WWFor2l ,0510
CDT7z)Al WOOD
k1f%r 57R70N
R6p,44v4matm69VT
1191) GRANT
APFWCAroA/
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i STATF OF WA~,TtNJ
p* DEPARTMENT OF ECOLOGY
• Man St" Pk I 1 . 041", W,taV,o, A 5(N-8]- . (Nr+J 45460M
May 11_ 1990
fi Tlr
*. !t ! Ms. Lynn Cut t Dire
e Public Works Director
� >a City of Renton
200 Mill Avenue South
Renton, WA 98055
Re: Centennial Clean Water Fund Grant/Loan Application
FY 91 Funding Cycle
Cottonwood Lift Station
Dear Ms, Guttman:
We have reviewed the Centennial Clean Water Fund Application you submitted in
1 the Ground Water, Freshwater, and Discretionary Funding Categories for the
Cottonwood Lift Station Project.
Unfortunately, we arc unable to accept the application for rating and ranking.
The project identified in the application does nut meet eligibility
requirements for funding consideration established in the Centennial Clean
Water Act and Regulation, WAC 173-95-110(1)(c)(iv) "Limitations On The U,e Of
Funds," This section specifically states that:
"Funding for collection sewers )and associated pump stations) may be
provided only if the facility to be constructed will eliminate a public
health emergency or severe public health hazard."
�- Eligibility of pump stations associated with collection sewers is described in «
Centennial Clean Water Fund Program Guidelines Chapter XII E. 4., 5. and 6.
I, I "Eligible Water Pollution Control Facilities Project Costs."
Y� I
In addition, if your project becomes eligible because of a public health
emergency or severa public health hazard, you would be required to follow a
"step" or sequen..lal spprea h f, d"cign and construction as
required in the Centennial Clean Water Lund Regulation, WAC 173-95-110 and
Chapter XII of the Guidelines.
The next funding cycle will begin in January 1991 with an application period a
of approximately 45 days. Our staff is available to assist you with the
' 571 technical and administrative requirements of the program.
I
{
�F
Ms. Lynn Cuttmann
May 11, 1990
Page 2
'Y Thank you for your interest in the Centennial Clean Water Program and your
efforts to improve water quality. If you have any questions regarding the
y`y program or the nest application period, please call Bill Semmes of my staff at
(206) 459-6028 or SCAN 585-6028
t S Y.
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< Myxo B. Saikewicz
Acting Program Manager
Water Quality Financial fate e
MBS akr '
v •,. cc: Ron Olsen, City Engineer -,
Mike Rundlett, Ecology/NWRO
Al Newman, Ecology/WQFAP
r 'e Bill Semmes, Ecology/WQFAP
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C"4 •� CITY OF RENTON
uIL PUBLIC WORKS DEPARTMENT �
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Earl Clymer, Mayor Design/Utility Engineering
!1 February 23, 1990
Department of Ecology ,
Mail Stop PV-I I
i Olympia, WA 98504-9711
Re: CENTENNIAL CLEAN ' ATER FUND GRANT APPLICATIONS
fWe are transmitting herewith the original and ten (10)copies of the following Grant ApplicatioPs:
f RANT TITLE
FUNDING CATEGORY
I City of Renton
Metro's Cedar River Trunk Sewer Relocation Discretionary - Basic
' City of Renton
I Metro's Cedar River Trunk Sewer Relocation Ground Water - Statewide
City of Renton
Metro's Cedar River Trunk Sewer Relocation Freshwater - River
�I Wellhead Protection Prograr, Development Discretionary - Basic
� Wellhead Protection Progum Development Ground Water - Statewide
Wellhead Protection Pro;ram Development Freshwater - River
City of Renton
Cottonwood Lift Statior. Discretionary - Basic
City of Renton
Cottonwood Lift Station Ground Water - Statewide
Sierra Heights Sanitary Sewer
Improvements Ground Water - Statewide
Sierra Heights Sanitary Sewer
Improvements Freshwater - River
Sierra Heights Sanitary Sewer
Improvements Discretionary Ts
City of Renton
Cottonwood Lift Station Freshwater - River
Sierra Heights Sanitary Sewer
Improvements Nonpoint Source
200 Mill Avenue South Renton,Washington 98055 -(206)235-2631
FacslmlM(2pa/2J6S51J +
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Department of Ecology
February 23, 1990
Page Two
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� Al=o enclosed is a letter to c- included with a previously submitted grant application for the
Black River Water Quality Management Project (Supplemental Information) Non-Point Funding
Category.
Very truly yours,
Michael A. Benoit
Wastewater Utility
GRANT-AP/MAS If
Attachment .,
Received by DEPARTMENT O' ECOLOGY
By
Date:
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ITTTT.1{MIIi 101 Sllit
" 'LTG p" CENTENNIAL CLEAN WATER FUND
ECOY GRANT/LOAN APPLICATION
I. APPLYING FOR(Ch.ch w) 2. PROJECT TYPE(ChW"mrq�
®G,.N ❑Lo.n ❑A." Q' F.cBIy
3. PROJECT TMLE —� +
CITY OF PENTON COTTONWOOD LIFT STATION
1
.. wPPLICNtr NAME(PUBLIC BODY)AND ADORES) 5. APPLICANT CONTACT PERSON,TITLE.ADDRESS AND
CITY OF F_NTON TELEPHONE NUMBER
200 Mil; A—nue SOUTT Ronald L. Olsen, Water Utility Supervisor
98Ud5 CITY OF PENTON
Engineering Department
>uaAMWYNNNadiiv 200 Mill Avenue South r.
Lynn Guttmann Renton, WA 98055
Puhl it Wnrkc n'ror+
206-235-2631
a FUNDING CATEGORY APPLIED FOR: (CF I orw) ]. M AT'CATEGORYPnoJEj APPLIED FOR'.
❑K1.An.(C.nr.l.l.bIN retlrp q"wlknrreY.1 Me you Iubn*"0*po1M hw corMla.rNbn in.radw hrrNYy
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1 B.APPLICANT AND PROJECT LOCATbN
a Carly w AFpk. Kin 1 • L.gbl.Nvw dNridls)d go).cr.
b.C. "d Prok,,. _ King InMN .1 dl.bkb wtrre.b INN M.Irrc.M d bh.po).d wB
e. Wtrb b tl..11pblNk.dlNrkb d."plk.N__�_ b..aar fk h.d.(To au.t ,,w j00%)
d. DoN t pm*.t I,nn,*w.carby awwbq bpbbl" DM"kt No 11 Paca.l 1001.
dH.bkb d.l.wk.t DWkb No. Paced
❑Y. tk Dbbid W. P.mad
PYw p.vM.•m.P.howhq MoM lnNFor.I.PaWrbt. DWbbd No.
PM.N
Dbtrki No. P.rcNt
ECY ao.13e(R.v IM)
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---
S. FOR FACILITY PROJECTS ONLY ----
e Typed Pro)ecl tChac j
❑P ,*,(Slp 1)
❑Dear(Slap 2-Dp.n,.M of Eoabgy WOFAP sppwW IadANae pan or NpY,wrFy.pon regpbep
DP,]c-,,a dw(SW 3-Dpanmenl d Ecology WOFAP a,pI plan..end aPeMlcetlon.rayksdl
yy OeM2n end CanNnMlp.154p 4-Depsnm.rN d Ecabpy WOFAP mp,oveo todllba plan or wglneerYq repM recuke0-sty
Nars la
b Facility ProlM Slstw
DOCUMEM APPROVED DATE
Engleaartrp Ryon ] Yea O No March, 1989
Facials.Plan ❑Yea E No
Platy reap Spaceketlow ❑Yea P NO
a ya.,attach approval Mere ham are D.PNlmenl of Ecdlogy.nd copy d rapon re plan cow,page.
c. NPDES,54N Peme No_
Note AO ItcIYMe wngructbn pro*ft mW have m e,g M•tY�
d. ENorwreaM Adorn. .W or tacMlw pI•n( p 11"plan.all
❑Y. riStp I l mrwed by IN D.at v a a W IF�
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Mbch Nppo"dwunNgatlon
10. FORACTIVITYPROJECTSONLY
•. Type d Pmocr. (CheN,owl 121 N.s Iro p•nrAvp doamrra been nvl.wed a v!approved by
)]m..r*v the Dparvwrnt d Ecology?
L)I,plNneraedon ❑Y.. Caw _ _ _ ,.�No
❑OX,ar(a.S pDec NAacslbnl Adach appw.l W"..h, 0.Dtpa+n.. .,N r n,Vy.aa,
«M. ccpr ot.apon or plan cwN
Note MbrpWwraeXon Po)was mealMD.aedmeplannvvj s Pogs,Stull WatenMd Projects
docurwM W ovsd Dy tM Department d Ecology N the it) b hen popoeen pe)sct In eegwrc.wth tlw;ouMyy upprovad
Xma N ygllwbw. rarkay of wataraneda ep:poln f In Chapter 4M 12 WAC9
to PlanNrg duvntM pNw 0 Yea ❑No
(1) Nee a plandrg document br sn IrrylameMMw poy.n
Deep-1 Mad for rwlaw all appro,wl by are t2) a ye.,ehal le tro cadre rurrpN d X,a propwed wet"Iret!
Deparhnt It d Ecology? project?
N.D.
❑Y.. []No (3) b MN Popoeed P.*4 cwNN.M wen.walwahe0
X pad.date of.WmMN _ rran,.rA pan?
❑Yea ❑No
e we.povkM.Mar from lead.q.,
X w.plaeN.mlaln m e separate srre,a1 paper
n. SOURCE OF"DS
'•. TNaI Eateeated Pm).ct Cop f 433 C41 r. DX,r Fedtr."IM.OieaN.wn(Spwey tyre)
••e. TN•I E.bmNte EIISbla prq.N cop = 433, 1
.. Epa.Sy OMM sror. (_5jLx) f 216,521
It Eeolop Lwn Share l__x) f
•. APpkem'a Sher.
PWN eXtcA•oeaMBa wN wmmery du16N,p pro)eN MpW Wmer�b IeP admM.lrNbn,IxMkai servkea,conNnulbn esnmetea,Nc.)
' Thor tN.l project cwt m.y Y,ehW cwN naoa.Ny 1p X,s wuea WI corrpWlen d d,s po)ec,Iror may NOi ro NIAle4 for yrent o,ken
ptrlkgllon War are CaMPoIW1 Clean W"Fund P,oOr.m
� " AmeaM wed ea Ill Nea cost M Eeokyy grant p bea MNe.
_ 12. REQUESTED LOAN TERMS
s. ❑ D- 5Y.,Tar,—0%IN~Pat.
O 5-le Year Tam-4%IMertp R.I.
❑ 15-20 Year Tarm-5X Im..M R.I.
1 Specific Ttrm Rpwpae ___years
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13. FINANCIAL NARDSNIP ASSISTANCE - --�
Rnamial h.rdshp.s4smn<e grams avaLor Io.m we bebp
miloaared y,Accueance,mlr WAC 173 eS1 W'.
a. Farrar, WII a� b. ACy(GroVnd•-alp ry'Aloge ody)
❑Y.. [J No ❑Yes ❑No
Xrm.piers.s•2mlt Fioan<bl c.pabNNi,OMllna wllh you• X Two,paves.ek,P),d<avmolalbnr e.d ryes
ep pour. (a p.In.Nely for memplory. Mc 1.ew]dabl.u
14. PROJECT DUksTION l6. INTERGOVERNMENTAL COORD NATION
a. AppeaangNy Mw bng wR Wa preleel Isb to egegwle] Does Wh prelad arrow.q mpacl mwa IMn o,e pm&body9
April 1, 1991 0 Yee ❑No
(1) Propcled slap Ds1° N yes,do aN pubNo badlo rim am me josh ow mlecllves of tiA
wood?(]) Prolgled Co,rpblbn Dele Jul Y 1, 1991 ❑Yea (]No
II yaa,ana<h sowers of e{^'eemeol or mamoraMums of.yreamsn,
bNwwM.".IW pms<boNow arm IME.tgpon<I lha proled.
N..plow a emplab m A worst.chap d paper AP,mach
Inledmel eg,aamanb Pro rgarad al tM lane M a gran,or ban
.word for all poled.Involi mor.rban we pubs,body
III. WATER BODY TYPE INVOLVED IN PRWECT (CMck one or
ff it Marine W.I.,dM•,hen Pugh sound ❑ F,ow Msler Rb,or Stream l
•• Pogw So"(duecl m.<n.,VaJ CA FwgaN Desgn.lsci Sole solos Ayglq �
❑Wwwvd. 13 G,<vd Water
❑"Pol w.lq Lab
17. DETAILED PROJECT DESCRIPTION '-- --�
HoWa a dow<,Iplbn d ma prgrosed paled aM a tlgaiW.c.ye of wqE Io W eccengTshed Ani b.Wcallon.
Ill SUMMAR b RWECT DESCRIPTION. --
Prostla M aaaerelw egmmary d IM prgysed pooled.(MMI be b 150 wads or lows)Aboh addllorld shot N n, asser,
This project will replace an existing sanitary sewer lift station and force main
located within the recharge path for City Production Wells 1, 2, 3, 8, and 9. The
existing faci ities are old and the force main failed a few years ago. A new li,t
station would be equipped Nith a monitored secondary containment system to minimize thli
Possibility of leakage into the aquifer.
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la 1 larm! to IM Mal d my W selling
ga,lyl IIy M'Ywi b IN'ayyecanp„h II'srg<sness arm Thal I qn el-NY.glerllad to sign aM Rrb,Id N,h MarmNbn on bMsn d tlw sppiceM.
MINTED NAME sI�T11RE
TITLE
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Depenmenl of Embgy
Waver Oasllly FEranclal Aeehlanoa Porpoise.Peary eM EVak.%P 5adian
Mail Slop PV 11
Olyrn rls,WA 9B5a.-0711
Page_
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17. DETAILED PROJECT DESCRIPTION
1
The Cottonwood Lift Station was built in 1960 to serve an
apartment complex adjacent to the Cedar River. The lift
station consists of a below grade six foot diameter, 16 foot
deep concrete wet well. The lift station pumps are wet well
mounted.
Access is through a 24" diameter hatch set 9" above grade.
Access to the wet well is a 12" x 18" opening directly below ..,f
the lift station access. Ventilation is ;provided by a 9"
steel pipe connecting the wet well to fresh air above grade.
The only above grade appurtenances are the power service and r
control equipment.
4
The gravity sewer inlet is located above the high water level
in the wet well. Wastewater is discharged via a 6" steel pipe
approximately 120 feet to a Metro manhole in Maple Valley
Highway. Overflow is discharged to Cedar Riv
Pump operation is contro L'ed by four level controls. One pump
is called to run when the liquid level reaches the high water
level and is called to stop when the fluid level reaches the
lower water level. Pump operation is alternated each pumping
cycle. If the liquid level rises to a second high water level
the standby pump is called to run. Should the liquid lev-1
continue to rise and reach the setting of tTta alarm level
sensing element, an alarm condition is sent to the City shops.
An alarm condition is also triggered for low level condition,
power failure, and telemetry failure.
There are no records of any maj— modifications including pump
and/or motor replacement. The present condition of the
Cottonwood Lift Station is located within /one 1 of the
City's Aquifer Protection Area. Any sewag'_ leaks pose a
hazardous threat to the City's water quality. Less than twc
years ago a rupture was discovered in the 6" force main. The
rupture was repaired with a steel band, but the pipe nas not
been replaced since it was installed in 1960. The wet well is
corroded and its ability to resist leaks is unknown.
To provide secondary containment for the wet well and at the
same time continue service, it would be more cost effective to
replace the existing wet well with a new wet well with
secondary containment. It would be more expensive to attempt
to salvage the existing wet well than to replace it entirely.
i Also the structural integrity of the thirty year old facility
is unknown. A new wet well should be sized to provide at
I
A
'_east one hour response time in the occurrence of a power or
pump failure. This would eliminate the need for an overflow
discharge to the River.
The vacuum prime system on the existing pumps clogs and
requires frequent maintenance. The existing pumps are several
years old and will soon begin to incur more frequent
maintenance. These pumps should be replaced by a more
reliable pumping system such as self-priming or submersible
pumps. The existing pumps and motors could be salvaged for
spare parts. The control system should also be replaced. The
construction and condition, of the existing control eq,, pment
make it difficult to maintain and repair. Many of its
components are no longer manufactur, and are unava'_iable. A
new control and telemetry system � uld contain additional
alarms for intrusion, water in dry well, and pump failure as
well as complete sewage leak monitoring and alarm.
SCOPE OF WORK
TASX I - DEVELOP PLANS, SPECIFICATIONS AND CONTRACT DOCUMENTS FOR
THE COTTONWCOD LIFT STATION REHABILITATION
! A. Pr^pare Site Plan of Proposed Improvements
i 1. Determine location of existing utilities and features
i 2. Determine location of right-of-ways, property lines,
easements
3. Develop plan for Site utility and landscaping
'�. improvements.
! B. Prepare Structural Plans of Proposed Improvements
j 1. Design lift station configuration
i 2. Design secondary containment
1 3. Prepare a demolition plan for existing lift station
i
j C. Prepare Mechanical Plan of Proposed Improvements
1. Conduct hydraulic investigation of existing system
components
2. Design lift station mechanical equipment layout
3. Develop suggested procedure for maintaining temporary
service during construction
!
j D. Prepare Electrical, Control, Monitoring,
i
with Enclosure Details, Electrical and Control T Logics Diagrams
E. Prepare Contract Specifications for Proposed Improvements
J
1. Compile standard legal exhibits and general conditions.
Pehab2itparkotechnical specifica7iens for lift station `
3. Provide 25 document sets for bidding.
4. Provide engineer's estimate of construction costs, s
following design.
4
TASK 2 - PROVIDE CONSTP' JTION ENGINEERING AND CONTRACT
ADMINISTRATION ' ..RVICES
A. Provide periodic construction inspection to insure contractor
compliance with contract documents.
B. Review construction submittals
C. Administer contract including processinn of partial payments
TASK 3 - PROVIDE AS-PUILT PLANS
A. Conduot site investigations and take meat, rents as necessary
B. Modify design plans to reflect construction records a
i
Amami,,
Applicant Name CITY OF RENTON
Project Title COTTONWOOD LIFT STATION
CENTENNIAL CLEAN WATER FUND
BASIC DISCRETIONARY ACTIVITIES AND FACILITIES
PRIORITY RATING QUESTIONNAIRE
The purpose of this category is to fund activities and facilities that
do cot readily fit into another funding category. Project grants or
loans are limited to ter. percent (10%) of the '.egialative appropriation
from the funding category during a current funding cycle.
This questionnaire is designed to obtain information for rating your
project. Before completing this questionnaire, please carefully re+iew
the description of the rating criteria in the Priority Rating System
included in the Guidelines for the Basic Discretionary Funding Subcate-
gory. Please call your Ecology staff contact regarding specific ques-
tions. ONLY THAT INFORMATION WHICH IS SUBMITTED BEFORE THE APPLICATION
DEADLINE. WILL BE USED IN THIS YEAR'S RANKING PROCESS.
Questions requiring narrative answers should be answered on separate
paper. Please reference the question number and title when answering.
Answers should be brief and concise Points will not be awarded without
,ppropriate documentation.
To be eligible for funding fr the B., Discretionary Funding
Subcategory, the project proposed by the p,.:,lic body must address, at a
minimum two of the following requiremects: Clerk those that apply.
O(X Project is innovative and could be used as a demonstration
project on a statewide or regional basis; or
SECONDARY CONTAINMENT
❑ Project would directly benefit water quality through a
training and education process; or
11X Project addresses a water quality problem that has caused or
is likely to cause a direct economic impact to the public; or
❑ Project meets the legislative intent.
a. .FUSTIFICATIOn OF ELIGIBILITY
(1) Does proposed project qualify for funding in another
Centennial Clean Water Fund category?
di YES O NO
I (2) Please discuss how the proposed project addresses two of the four
basic criteria. Discuss each criterion and the portion of the
project which meets the criterion.
See Supplemental sheets attached.
ECY 040-156
Revised (1/90)
t 1
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(3) Please explain the importance of this project and why it should
be funded from the Basic Discretionary Funding subcategory.
Address impacts of the project on pater quality, local
goveraent(s), the public, etc.
b. '.00AL INTEREST AND COMMITMENT
(1) Identify local interest in or commitment to the proposed
project, (i.e. financial commitments, identified as needed
in local or state plan, interlocal agreements, formation of
citizens comitteej
(2) Explain how citizen involvemeat will be utilized in the
proposed project.
(3) Explain how public education will be used to promot. cr
implement the project.
(4) (a) Are you applying for less than a 75 percent grant? � .
WYES, Percentage 25% 0 NO
(Round off to nearest 5%)
(b) Are yr . applying for a loan? °
❑ YES EX NO
c. STATEWIDE/REGIONAL SIGNIFICANCE OF PROPOSED PROJECT
(1) Explain how the project is innovative and/or unique and when
completed can be used as a model on a statewide or regional
basis. See supplemental sheets attached, Item a.(2) '
(2) Explain how the project will provide educational material
and/or training on prevention and/or corteclion of water
quality problems and how it can be utilized on a statewide or
regional basis. N/A
d. PREVENTIVE OR CORRECTIVE ACTION (:hoose either (1) or (2))
(1)(a) If the project '_s primarily preventive, (i.e., no existing
water quality standard violations or specific water
quality problems), explain the nature of the potential
problem, and how the project may help prevent a future
water quality problem.
(b) If the project contains some , •rrective aspects, please
explain the corrective aspects of the project.
(2)(a) If the project is primarily correrti' _ (i.e., it is
devised to correct existing water quality standard viola-
tions, or a water quality problem), explain the nature of
the problem and how the project will restore or enhance
water quality or correct water quality degradation.
(b) If the project contains so" preventive aspects, please
explain the preventive aspects of the project.
2 _
I
a. BENEFICIAL USES
(1) Describe how the different beneficial uses of the water body
Pnvolved in the proje._t will be protected or enhanced by the
proposed project.
I. ENFORCEMENT
(1) Has the Department of Ecology, Department of Social and Health
Services, or Environmental F.otection Agency issued an
enforcement order specially requiring the proposed project?
YES ►1X NO
Provide documentation of order.
(2) Is the impact of the problem nn public waters so severe that
any regulatory agency I quires the corrective of preventive
action proposed in the eject?
tl YES C9(NO
Provide docume�,tation of requirement.
(3) is the proposed project designed to enact or implemett an
existing local ordinance(s) specifically amended or created to
improve or protect water quality?
IPXYES 0 NO
Attach ideurifying documentation including any ordinances and resolutions -
See Exhibit A (Urdinince 4147)
g. RECOMMENDATIONS FROM WATER POLLUTION CONTROL AUTHORITIES (Chcose as
many as apply and provide aopr o istr _documentation.)
(1) (a) Is the proposed planning or implementation project required
by the Puget Sound Water Quality Authority's Management
Plan or a water quality management plan prepared by any
other bs:d, council, commission, group, or state agency
established by the Legislature to study water pollution
control issues in the state?
i
❑ YES MXNO
(b) Has a plan prepared by the public body specifically
identifying the proposed project been approved, certified,
or accepted by Ecology?
0 YES 0 NO
i
Provide documentation of plan and verification of approval.
I
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(2) (a) Has the proposed project been specifically identified as
being needed in a water quality management plan prepared .1
by a county or regional planning authority, board,
council, or coassission? `
)d( YES ❑ NO
(b) Has the water quality management plan been approved by the
appropriate administrative or legislative body?
Yd YES ❑ NO
t
Provide documentation of plan and verification of approval.
See attached Ordinance 4147,
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CPNWD.ioo
CENTENNIAL CLEAN WATER
RABIC DISCRETIONARY ACTIVITIEo AND FACILITIES
PRIORITY RATING QUESTIONNAIRE
a, JUSTIFICATION OF ELIGMILTCY
(2) Secondary containment is to be provided for the wet well. This is an,innovative
feature and is extremely significant in the prevention of contamination of the
City a sole source aquifer, On April 4,1988,the City of Renton passed Ordinance
No. 4147 estabhahiag the underground storage tank secondary containment
requirement for new underground swragY facilities which store regulated
substances including hazardous materials,flammable liquids,toxic substances,
and combustible liquids. The scope of this ordinance was expanded in the case
of the Cottonwood Lift Station to include sewage, also a hazardous material.
Tnerefore, this practical application and progressive ordinance in the City of
Renton would be need as a demonstration project on a statewide or regional
basis.
The project addresses a water quality problem that has caused or is likely to
cause a direct economic impact on the public. Any sewage leakage poses a
❑azardcus threat to water quality. The City's sole source aquifer is located
beneath the Valley floor in the City of Rentoa. This aquifer is a very permeable
f water table to the partially confined aquifer. The City currently utilizes this
aquifer to provide over 95%of its water sltpply.
(3) Construction of a replacement lift station with adequate detention time and
volume will prevent overflows of sewage into the Cedar River. Design standards
will meet and exceed current Department of Ecology standards and applicable
codes,which the current lift station does not. Reliability of pumping equipment
will be increasud substantially by placing electrical panels (switchgear, motor
eta.-tors, and telemetry equipment) above grade acd out of the flooding area
(during a surcharged overflow).
The project addresses a water quality problem that has caused or is likely to
cause a direct economic impact on the public. n y sewage leakage poses a
hazardous threat to the Citys water quality. The Citys sole source aquifer is
located beneath the Valley floor in the City of Renton. This aquifer is a very
permeable water table to the partially confined aquifer. The City a.rrently
utilizes this aquifer to provide over 95%of its water supply.
Additionally,the Cedar River supports fish rune of steelhead,chinook,coho and
7 other species as well as being the primary rocharge waterway for Lake
IJ Washington. This water quality is particularly important for continuri fish runs,
recreational uses,and drinking water supplies.
Impairments to the beneficial uses noted occur when sewage overflow
contaminates the contaminates the immediate area. Faru_lately,this time not
occur freque•:tly but the threat is present and must be dealt with.
b. LOCAL INTEREST AND COhM TAENT
The project has been proposed by the City's staff,approved by the City Council,and the
City's share of cost included in the City's Capital Improvement Program. This project
rates as the highest priority lift station improvement due to the threat from degradation
of Cedar River and Lake Washington water quality.
C. STATEWIDE AND REGIONAL SIGNIFICANCE OF PROPOSED PROJECT
(I) Secondary containment is provided for the wet well. This is an innovative
feature and is extremely significant in the prevention of contamination of the
City's sole source aquifer. It eliminates the wet well overflow discharge into the
Cedar River. In April 4, 1988,the City of Renton passed Ordinance No. 4147
establishing the underground storage tank secondary containment requirement
for new underground storage facilities which store regulated substances including
hazardous materials, flammable liquids, toxic substances, and combustible
liquids. The scope of this ordinance was expanded in the case of the Cottonwood
Lift Station to include sewage, also a bazardous material. Therefore, this
practical Ppplication and progressive ordinance in the City of Renton would be
used as a demonstration project on a statewide or regional basis.
d. PREVENTIVE OR CORRECTIVE ACTION
(2)(a) The nature of this potential problem is contamination of 95%of the City's water
supply through sewage leaks, overflows, and spills into the aquifer which is
immediately adjacent and under the existing lift station. The effects could be
disastrous in that a severe contamination could result in the inability to use the
aquifer as a source of drinking water supply :or a prolonged period (months).
The most appropriate solution is the proposed project which will have secondary
containment for the potential pollutants of the aquifer.
Also please refer to a. (3)above.
e. BENEFICIAL USES
The construction of this project would replace an existing 50 year-old facility which could
be currently contaminating the City's aquifer. If this project is funded, the threat of
contamination would be completely eliminated and additionally,an approved monitoring
system world be installed which would detect any contamination immediately. Because
this facility is located in the Aquifer Protection Area,it is very important to consider this
project of benefit to the public since 95%of the drinking water for the City of Renton is
obtained from this aquifer.
The project addressee a water quality problem that has caused or is likely to cause a
direct economic impact on the public. Any sewage leakage poses a hazardous threat to
I
the City's water quality. The City's sole source aquifer is located beneath the Valley
floor in the City of Renton. This aquifer is a very permeable water table to the partially
coaflned at ifar. The City currently utilizes this aquifer to provide over 95%of its water
supply.
Additionally,the Csdar River supports fish rune of steelhead,chinook,who and other
species as well as being the primary recharge waterway for Lake Washington. This
water quality is particularly important for continued fish rune, recreational uses, and
drinking water supplies.
Impairments to the beneficial uses noted occur when sewage overflow contaminates the
contaminates the immediate area. Fortunately,this done not occur flrequently but the
threat is present and must be dealt with.
F. ENFORCEMENT
s (3)See attached Ordinance 4147.
I
CITY OF RENTON, WASHINGTON ''
ORDINANCE NO. 4147
AN ORDINANCE OF TBE CITY OF RENTON, WASHINGTON, AMENDING TITLE
VII (FIRE REGULATIONS) OF ORDINANCE NO. 1628 ENTITLED -CODE OF
GENERAL ORDINANCES OF THE CITY OF RENTON' 8, ADDING CHAPTER 12 _
ESTABLISHING THE UNDERGROUND STORAGE TaNK SECONDARY - -
CONTAINMENT ORDINANCE.
THE CITY COUNCIL OF TSE CITY OF RENTON, WASHINGTON, DO ORDAIN
AS FOLLOWS:
SECTION I: Existing Title VII, (Fire Regulations) of
Ordinance No. 1628 entitled "Code of General Ordinances of the City
of Renton is hereby amended by adding Chapter 12 as follows:
SECTION 7-1201: TITLE
This ordinance shall be hereinafter known as the 'Underground
Storage Tank Secondary Containment Ordinance", may be cited as
such, will be hereinafter referred to as 'this Ordinance", and same _
shall be and constitute Chapter 12, Title VII of Ordinance No.1628
known as the 'Code of General Ordinances of the City of Renton".
SECTION 7-1202; PJRPOSE AND INTENT
A. Purpose. The purpose of this Ordinance is to establish secondary
containment and monitoring requirements for new underground storage
facilities which store regulated substances including hazardous
materials, flammable liquids, toxic substances and combustible
liquids. This Ordinance establishes construction standards for new
underground storage facilities establishes separate monitoring
standards for new and existing underground storage facilities,
establishes uniform standards for release reporting, emergency
response and abandonments; and specifies permit procedures.
B. Intent. It is the intent of this ordinance to provide a method by
which:
1. To safely store regulated substances including hazardris
materials, flammable and combustible liquids, and .cxic
substances in underground storage facilities; to trap and
safely hold for recovery any regulated substance which may
leak from c derground storage facilities;
2. To provide a systematic means of monitoring to determine the
presence of any leaked substance so that it may be safely
recovered in a timely manner;
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ORDINANCE NO. 4147
3. To provide a meana to monitor existing underground storage
facilities to detect leaks;
4. To protect groundwater resources; and
5- To protect the City of Renton's drinking water supply from
impacts caused by regulated substances.
6. To reduce the fire and life safety hazards associated with
substances that might otherwise escape from a primary
container.
In addition to the provision of this article, all underground storage
facilities installations shall meet all applicable provisions and
requirements of Articles 7g and 80 rf the Uniform Fire Code.
SECTION 7-1203; APPLICABILITY
A. Persons who own ore or more underground storage facilities storing
regulated substances (including hazardous substances, flammable _
liquids, toxic substances, and combustible liquids) shall comply
with this Ordinance. It the operator of the underground storage
facility is not the owner, then the owner shall enter into a
written contract with the operator requiring the operator to comply
with this ordinance.
B. All new underground storage facilities which store regulated
substances most comply with the construction and monitoring
standards for new underground storage facilities as set forth in
this Ordinance.
All existing underground storage facilities which store regulated
substances must comply with the mon_toring standards for existing
underground facilities which are set forth in thi3 Ordinance. -
However, existing underground storage facilities whicn meet the
construction and monitoring standards for new facilities as set
forth in the Ordinance may be issued permits and regulated pursuant
to the standards and procedures for new facilities.
D. All existing underground storage facilities which are located in
Zone .1 of the Aquifer Protection Area and which store regulated
substancc� must comply with the conrtruction and monitoring
standards for new underground storage facilities as set forth in
this Ordinance within eighteen (13) months of the date of adoption
of this Section.
E. All owners and/or operators of underground storage facilities which
store regulated substances now, have stored regulated substances in
the past, or nave the ability to store regulated substances in the
future must comply with the release reporting requirements, the
closure requirements and the permit application requirements as set
forth in this Ordinance
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.ORDINANCE NO. 4147
F. This Ordinance specifically excludes regulation of the following:
1. Farm or residential tanks of 1,100 gallons or less capacity
used for storing motor fuel for noncommercial purposes, except
for new tank installations in the City's Aquifer Protection
Area;
2. Tanks used for setting heating oil for consumptive use by
single family residences, except for new tank installations in
the City's Aquifer Protection Area;
3. Septic tanks;
4. Storage tanks situated in an underground area (such as a
basement, cellar, mineworking, drift, shaft or tunnel) if the
storage tank is situated upon or above the surface of the
floor;
S. Pipeline facility; Pipelines which transport regulated
substances inter-jurisdictionally.
6. Surface impoundment, pit, pond or lagoon;
! 7. Storm water or waste water collection system;
B. Flow-through process tanks; or
9. Liquid trap or associated gathering lines directly relateo to
oil or gas production and gathering operations.
SECTION 7-1204: DEFINITIONS
A. ABANDONMENT of underground storage facilities shall mean: (1) the
relinquishment or termination possession, ownership or control
without full disclosure to t —1 owner thereof of containers,
tanks, or pines which have s� . .:d in the past or a.e currently
storing regulated substances whether by vacating or by disposition
thereof and shall not depend on a mere lapse of time; or (2)
storage facilities which have been substantially emptied and
unattended.
B. AQUIFER PROTECTION AREA (APA) means the portion of an aquifer
within the zone of capture of a well or well field owned or
operated by the City of Renton, or the recharge-discharge area of
any spring used for water supply by the City of Renton.
1. ZONE I OF THE AQUIFER PROTECTION AREA (APA) is defined as the
land area situated between a well or well field owned by the
City of Renton and the one year groundwater travel time
contour, or the local recharge-discharge area of a spring used
for water supply by the City of Renton.
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JRDINANCE NO. 4147
2. APA maps which have been adopted as official policy by the
City Council are incorporated and made a part of this
Ordinance. These maps shall be filed With the City of
Renton's Clerk's Office and maintained by the City of Renton
Public Works Department. Any amendments, additions, or
deletions to said maps shall be effective after approval by
the Renton City Council and filing with the City Clerk for
record.
C. CLOSURE OF UNDERGROUND STORAGE FACILITIES shall mean the lawful
emptying and/or removal of underground storage facilities pursuant
to a permit issued by the Fire Department and in conformance with
Article 79 of the Uniform Fire Code.
D. CONTINUOUS MONITORING means a system using automatic equipment
which routinely performs the required monitoring on a periodic or
cyclic basis throughout each day.
E. DEPARTMENT means the City of Renton Fire Department.
F. DOUBLE-WALLED means a container with two complete shells Which
provide both primary and secondary containment. The ou,er shell
must provide structural support and must be constructed primarily
of non-earthen materials including, but not limited to, concrete,
steel, and plastic.
G. EXISTING UNDERGROUND STORAGE FACILITY means any underground storage
i facility that is net a new underground storage facility. The term
includes any unde ground storage facility which has contained a
hazardous substance in the past and, as of July 1, 1987, had the
physical capability of being used again (it had not been removed or
completely filled with an inert solid).
R. LEAK DETECTION SYSTEMmeana a system or technology caoable of
detecting, Within 24 hours, the failure of -ither the primary- or
secondary-containment structure or the presence of liquid in the
secondary containment structure.
I. MEMBRANE LINER means any membrane sheet material fabricated into
system for secondary containment. A membrane liner is placed
external to a tank, in order to be a❑ impermeable barrier between a
primary containment device including pipes, and the ground. The
membrane must provide a complete envelope that will prevent both
lateral and vertical migration of the stored product out of the
containment system and will be free of cracks and gaps.
J. NATIONALLY RECOGNIZED INDEPEN➢ENT TESTING ORGANIZATION means any
one of the following organizations; or other organizations approved
by the Free Chief;
American National Standards Institute (ANSI)
American Society of Mechanical Engineers (ASME)
American Society for Testing and Materials (ASTM)
National Association of Corrosion Engineers (NACE)
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ORDINANCE 4147
National Sav itation Foundation (NSF)
Underwriters Laboratories (UL)
Underwriters Laboratories of Canada, Inc. (ULC)
K. NEW UNDERGROUND STORAGE. FACILITY means any underground storage
"acility subject to this Ordinance which is installed after the
effective date of this Ordinance or which complies with the
requirements of Section 5 of tris Ordinance.
L. OPERATOR means any person in control of, or having responsibility
for, the daily operation of a storage facility.
M. OWNER includes his duly authorized agent or attorney, a purchaser,
devisee, fiduciary and a person having vested or contingent
interest in the property in question.
N. PRIMARY CONTAINMENT means a device (such as a tank, pipe, drum) and
associated appurtenances which holds a regulated substance.
O. PRODUCT TIGHT means impervious to the substance which is contained,
or is to be contain^d, so as to prevent the seepage of the
substance from the primary containment. To be product tight, the '
primary container shall not be subject co physical or chemical
deterioration by the substance which it cor.tains over the useful
life of the tank. �r
P. RLCULATED SUBSTANCES shall mean any hazardous materials, flammable
liquid, combustible liquid, or toxic substance which are more
Particularly defined as:
1. FLAMMABLE LIQUID 1s any 1_quid having a flash point below
100°F. and having a vapor pressure not exceeding 40 pounds
per square inch (absolute) at 100'F.
2. COMBUSTIBLE LIQUID is a liquid having a flash point at or
above 100"F.
3. HAZARDOUS MATERIALS shall include such materials as flammable
solids, corrosive liquids, radioactive materials, oxidizing
maLerialS, highly toxic materials, poisonous gases, reactive
materials, unstable materials, hypergolic materials and
pyrophoric materials as defined in Article 9 of the Uniform
Eire Code and any substance or mixture of substances which is
ir, irritant, a strong sensitizer or which generates pressure
through exposure to heat, decomposition or other means.
4. TOXIC SUBSTANCE shall mean any m,..terial, either singularly or
in combination, which may pose a present or potential hazard
to human health or to the quality of ground waters when
improperly used, stored, transported or disposed of or
otherwise mismanaged including fertilizers, herbicides, and
pesticides.
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ORDINANCE NO, 4147
{, SECONDARY CC3TAINMEN'r means a system which will completely collect
t and contain all primary containment spills and leaks, and
contaminated precipitations, until appropriate remedial action can
a
be determined.
J.. SINGLE-WALLED means container with one shell in which regulated
substances can or being stored and which provides primary
containment.
. . UNAUTHORIZED RELEASE means any spilling, leaking, emitting,
discharging, escaping, leaching, or disposing from an underground
storage tank into ground water, surface water, or subsurface soils.
Unauthorized release does not include intentional withdrawals of
Lazardous substances for toe purpose of legitimate sale, use or
disposal. "
. . UNDERGROUND STORAGE FACILITY means a tank, pipe, vessel or other
container, or any combination of the foregoing, used or designed to
be used for the underground storage or underground transmission of
regulated substances and the volume of which ( including the volume
of the underground pipes connected thereto) is 10 percent or more
beneath the surface of the ground. The underground storage
facilities include but are not limited to line leak detectors,
monitoring wells, continuous automatic leak detection systems, and
secondary containment systems associated therewith.
SECTION 7-1205: NEW UNDERGROUND STORAGE FACILITIES AND MONITORING
STANDARDS
':ne fo.lowing subsections shall apply to all new installations of
_primary and secondary containers including leak interception and
4etection systems.
A. Standards for New Underground Storage Fa.Ilities
1. Primary and secondary levels of containment shall be required
for all new underground storage facilities used for the
storage of regulated substances.
2. All primary containers shall be product-tight and shall be
installed in accordance wit% all applicable sections of
Article 79 of the Uniform Fire Code.
3. All secondary containers shall be constru_ted of materials of
sufficient thickness, density, and composition to prevent
structural weakening of the secondary container as a result of
contact with any released hazardous substance and shall be
capable of containing any unauthorized release of the
hazardous substance stored within the primary container(s) for
at least the maximum anticipated period, established by
manufacturers specifications, sufficient to allow detection
and removal of the unauthorized release.
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ORDINANCE NO. 4147 a
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4. If ar hazardous .ubstance has come into contact with the
secondary container and either additional primary containers
exist within the secondary container or he leaking primary wr t
container has been closed as specified in this Ordinance and
replaced by a new primary container, the owner shall
demonstrate to the satisfaction of the Department that the
requirements of Subsection 5 fi.A.l of this ordinance are still
achievable or replace the secondary container.
S. The secondary container shall have the ability to contain the
following volumes:
a. At least 100 percent of the volume of the primary
container where only one primary container is within the
se-ondary container.
b. I
I oe case of multiple primacy containers within a
s. „glv secondary container, the secondary container shall
be large enough to contain 150 percent of the volume of
the largtst primary container placed in it, or 10 percent
of the aggregate internal volume of all primary
containers in the secondary container, whichever is
greater.
b. If the secondary container is open to rainfall, then it shall
be able to accommodate the volume of precipitation which could
enter the secondary container during a 24-hour, 100 year storm
in addition to the volume if hazardous substance storage
required in Subsection 5.A.5 of tuis Ordinance.
7. The volumetric requirements for the pore space of a granular
material placed in the secondary costa,,,er as backfill for the
primary container shall be equal to or greater than that
required in Section S.A.S of this Ordinance. The available
pore space in the secondary container backfill shall be
determined using appropriate engineering methods and safety
factors and shall consider the specific retention and specific
yield of the backfill material, the location of the primary
container within the secondary container, and the proposed
method ,f operation for the secondary container.
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ORDINANCE NO. 4147
B. The secondary container Shall be equipped with a collection ,
system to accumulate, temporarily store, and permit removal of
any precipitation, subsurface infiltration, or hazardous
substance released from the primary container.
9. Laminated, coated, or clad materials shall be considered
single walled and shall not be construed to fulfill the
require-ents of both primary and secondary eont.inment.
i
10. All primary containers and double-walled underground storage `
tanks subject to flotations shall be weighted or anchored ff
using methods specified by the manufacturer or, if non exist, '
best engineering judgement.
Design Standards for New Primary Containers and Double-Walled
Underground Storage Tanks
1. Cathodically protected steel underground storage tanks, steel
underground storage tanks clad with glass fibre-reinforced
j plastic, and glass fibre plastic underground storage tanks
shall be fabricated and designed to standards developed by a
nationally recognized independent testing organization or be
listed by the testing organization.
1 2. Unde•-ground storage tanks shall be tested by the manufacturer
or an independent testing organization for durability and
chemical compatibility with the regulated substances to be
stored using recognized engineering practices for materials
testing.
3. Except for steel underground storage tanks, a wear plate
(striker plate) shall be centered under all accessible
openings of the underground storage tank. The plate shall be
constructed of steel or, if the steel is not compatible with
the regulated substance stored, a material resistant to the
stored regulated substance. The width of the plate shall be
at least 9 inches wide and have an area of 1 a.quare-toot or be
equal to the area of the accessible opening or guide tube,
whichever is larger. The thickness of the steel plate shall
be at least 0.053 inch (1.35 mm) , and those constructed of
other materials (as required) shall ' e of sufficient thickness
to provide equivalent protection. le plate shall be rolled
to the contours of underground storage tank and bonded or seam
welded in place.
4. Single-walled primary containers of steel and the outer
surface of double-walled underground storage tanks constructed
Of steel which are not clad with glass fibre reinforced
plastic, shall be protected by a properly installed,
s.aintained, and monitored cathodic protection system.
Selection of the type of protection to be employed shall be
based on a certification listing by a nationally recognized
independent testing organization or the judgment of a
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ADINANCE NO. 4141
registered corrosion engineer or a National Association of
Corrosion Engineers (NACE) accredited corrosion specialist -
eating into account the corrosion history of the ar. l.
Underground storage tanks with listed corrosion resistant
materials, non-metalic glass fiber ce,nfocced plastic
eoatings,composites, or equivalent systems shall be tested
immediately prior to installation.
a. The protection system shall be inspected under the
direction of a registered corrosion engineer or NACE
corrosion specialist at the frequency specified in the
certification or in accordance with th not lessschedule
prescribed by the system designer,
but annually.
b. Underground storage tanks in a vault and not backfilled
are exempted from the requirements of this subsection.
5. All ncimary containers and double-walled underground storage
tanks shall be installed according to the manufacturer' s
written recommendations or, if no written recommendations
exist, best engineering practice.
6. Underground storage tanks shall be tested before being put
into service in accordance with the applicable sections of the
Code under which they were built. The ASME code stamp or
t Listing Mark of Underwriters Laboratories, In-oruo,ated, (UL)
11 any other nationally recognized independent testing
organization shall be evidence of compliance with this
requirement.
7. before being covered, enclosed, or placed in use, all
underground storage tanks and piping shall be tested for
tightness hydrostz .1cally or with air pressure at not less
than 3 pounds per square-inch and .ot more than 5 pounds per
squ..re-inch. Pcessore piping shall be hydrost.itically tested
to 150 percent of the maximum anticipated pressure of the
system, or pneumatically tested to 110 percent of the maximum
anticipated pressure of the system, but not less than 5 pounds
per square inch gauge at the highest point of the system.
This test shall be maintained for a sufficient tit.^ to
complete visual insp!ction of all joints and connections, but
for at least 10 minutes. In lieu of the above, a test using
accepted engineering practices shall be used. Douolewalled
underground s'.orage ranks are exempt from the requirements of
this section provided that the annular space is monitored
using either pressure or vacuum testing-
B. All underground storage tanks shall be equipped with an
ooerflow protection system which includes the following
elements:
in
h surrounds tLe
and
a A spillpreventsc the inflow atcnmeQt n so: theca hazardous substance into' the
9
ORDINANCE NO. 4147
subsurface environment. A level sensing device that
continuously monitors and indicates the liquid level in
the underground storage tank and either (b) or (c) of
this subsection or both;
b. An audible/visual alarm system triggered by a liquid
:.evel sensor to alert the operator of an impending
overfill condition; or
C. An automatic shut-off device that stops the flow of
product being delivered to the jnderground storage tank �+
when the underground storage tank is full.
C. Standards for Secondary Containers Including beak Interception and
Detection Systems
1. The secondary container shall, at a minimum, encompass the
area within the system oL vertical planes surrounding the
extei ioc of the primary containment unit. If backfill is
placed becween the primary and secondary containment, then an
evaluat-ion shall be made of the maximum lateral spread of a
point leak from the primary containment over the vertical
distance between the primary and secondary containment. The
secondary containment shall extend an additional distance
beyond the vertical planes described above equal to the radius
of lateral spread plus 1 foot.
2. The secondary container must be capable of precluding the
inflow of the highest ground water anticipated during the life
of the underground storage tank into the space between the
primary and secondary containers.
7. If the space between the primary and secondary containers is
backfilled, the backfill material shall not preclude zne
vertical movement of leakage from any part of the primary
icontainer.
4. The secondary container and any backfill material between the
primary and secondary containers shall be designed and
constructed to promote gravity drainage of a leak of regulated
I substances from any part of the primary container to the
monitoring location (s) .
I
S. Two or more primary containers shall not utilize the same
secondary container if the primary containers store materials
that in combination may cause a fire or explosion; or the
production of a flammable, toxic, or poisonous gas; or the
deterioration of a primacy or secondary container.
6. Drainage of liquid from within a secondary container shall be
controlled in a manner approved by the Fire Department so as
to prevent regulated materials from being discharged. The
liquid shall be analyzed to determine the presence of any of
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ORDINANCE NO. 0147
the regulated substance(s) stored in the primary container
prior to initial removal and monthly thereafter for any
continuous discharge (removal) to determine the appropriate -
method for final disposal. The liquid shah sa,npled and
analyzed immediately upon an indication of unauthorized
release from the primary container.
7. For primary containers installed completely beneath the ground
surface, the original excavation for the secondary container
shall have a water-tight cover which extends at least 1 foot
beyond each boundary of the original excavation. This covet
shall be asphalt, reinforced concrete, or equivalent material
w"-icb is sloped to drainways leading away from the excavation.
Access openings shall be constructed as water-tight as
practical. Dcuble-walled underground storage tanks and open
vaults are exec:apt from the requirements of this subsection.
B. The actual location and ocientation of the underground storage
tanks and appurtenant piping systems shall be indicated on as-
built drawings of the facility. Copies of all drawings,
and/or plans shall be submitted to the Fire Department.
9. The flocr of the secondary container shall be constructed on a
firm base and, if necessary for monitoring, shall be sloped to
a collection sump. One cc more access casings shall be
installed in the sump and sized to allow cemoval of collected
liquid. The access casing shall extend to the ground surface,
be perforated in the region of the sump, and covered with a
locked waterproof cap. if this access casing is within a
secured facility, the requirements for a locked rap may be
waived by the Fire Marshal. The casing shall be tr :k enough
to withstand all anticipated stresses with appropriate
engineering safety factors and constructed of materials that
will not be structurally weakened by the stored hazardous
substance and will not donate, capture, or mask ronstituents
for which analyses will be made.
10. Systems for secondary containment utilizing membrane liners
shall meet the followirg requitements:
a. The mt crane liner shall have a permeability factor of
0.25 ounces per square foot per V hours or less. Such
permeability shall constitute the maximum care of
transport over time of the hazardous subs ance proposed
for storage. Permeability shall be evaluated according
to accepted engineering practice for materials testing.
b. The membrane liner shall be considered to have satisfied
the requirements of this Ordinance only if the liner
material meets the following standards. The material
properties specified in these standards shall be
determined using accepted engineering practices for
. materials tested. All certifications of accepted
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' ORDINANCE No. 4147
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standards are to be forwarded to this department prior to
installation.
1. The volume swell after a 24-hour period of immersion
in the stored hazardous substance shall not exceed 1
percent of the original liner membrane material
thickness.
2. The maximum change in elongation of the liner
membrane material at break after 24 hours of
immersion in the stored hazardous substance shall
not exceed 2 percent of the original elongation.
J. The liner membrane material hardness (brittleness)
atter 24 hours of immersion in the regulated
substance shall be within 5 percent of the original
hardness.
4. Fer a containment test, the rate of transport
through the liner membrane material of the regulated
substance after a period of 24 hours shall not
exceed 6 percent by weight of the regulated
substance being tested. The liquid height for the
test shall be no greater than that expected in
actual site conditions.
5. The rate of solubility of the liner membrane
material in the regulated substance for a period of
24 hours shall not exceed 0.1 percent by weight of
toe section of liner being tested.
6. The liner seam strength shall be equal to the
tensile strength of the parent material when tested
in accordance with accepted engineering practices
for materials testing
11. The liner shall be installed under the supervision of a
representative of the membrane liner fabricator or a
contractor certified by such fabricator.
12. The excavation base and walls for the synthetic liner shall be
prepared to the liner fabricator's specifications and shall be
firm, smooth, and free of any sharp objects or protrusions.
The design of double-walled underground storage tanks shall
allow for monitoring of the annular space.
14. 'Sticking• the annular space of a double-walled underground
storage tanK as a monitoring method shall not be allowed
unless a strike plate or other approved devices used to
protect the underground storage tank are located directly
under the monitoring opening.
12
)RDINANCE NO. 4147
15. The double-walled undergrocnd storage tank shall be so
designed and instailei that any loss of hazardous substance
from the primary container will drain to a specific location
within the .annular space, as required, to be detected by a
monitoring device or method.
16. 'Any special accessories, fitting, coating, or lining not
inherent within the initial design of the primary container or
double-walled underground storage tank shall be approved by a
nationally recognized, independent testing organization or a
demonstration of integrity with the primacy container or
double-wailed underground storage tank shall be required.
�. Monitoring Standards for New Underground Storage Facilities
1. The owners or operators of all new underground storage ;
facilities shall implement a monitcring program that is
approved by the Department and required as a condition of the
permit. Visual monitoring must be implemented unless it is
determined by the Department to be infeasible to visually
monitor.
All monitoring programs shall include the following:
a. A written routine monitoring procedure which includes,
r. n applicable: the frequency of performing the
monitoring method, the methods and equipment to be used
for performing the monitoring, the location(s) from which
the monitoring will be performed, the name(s) or title(s)
Of the person($) responsible for performing the
monitoring and/or maintaining the equipment, and the
reporting format.
�. Response Plan for New Underground Storage Facilities
1. A response plan shall be developed by the permit applicant
which demonstrates, to the satisfaction of the Fire Marshal,
that any unauthorized release will be removed from the
secondary container within the shortest possible time and no
longer than the time consistent with the ability of the
secondary container to contain the regulated substance. This
response plan shall be a condition of the underground storage
facility permit. The response plan shall include, but is not
limited to the following:
a. A description of the proposed methods and equipment to be
used for removing the hazardous substance, including th
location and availability of the required equipment, it
not permanently on-site, and an equipment maintenance
schedule for the equipment located on- site.
b. The name(s) or title(s) of the person(s) responsible for
authorizing the work to be performed.
17
ai..r
i
ORDINANCE NO. 4147
r
}� iECTION 7-1206: EXISTING INSTALLATIONS
A. Any underground- storage facility in existence as of the effective
date of this ordinance, or for which an installation permit has
been obtained prior to the effective date of this ordinance, shall
1 be allowed to continue in use, so long as it is product tight.
B. Should any existing storage tank and/or its associated piping
experience a loss of product, due to leakage or mechanical failure,
the entire underground storage facility shall be upgraded to meet `
the requirements for a new underground storage facility as set
forth in this Ordinance.
1. Should ary existing storage tank experience a loss of product
due to a :allure in its associatzd piping, the Fire Cnief
shall have the authority, upon written .equest of the
owner/operator, to waive the requirement to replace the entire
S facility. Such waiver shall be bzsed upon certification to
the satisfaction of the Chief that the piping has been fully
repaired. At a minimum, such certification shall include a
product-tight test of the facility.
C. All existing underground storage facilities which are located in
Zone I of the Aquifer Protection Area and which store regulated
substances must comply with the construction and monitoring
standards for new underground storage facilities as set forth in
this Ordinance within eighteen (18) months of the date of adopt-ion
of this Section.
SECTION 7-1207: EXISTING UNDERGROUND STORAGE FI.CILITY MONITORING �F
STANDARDS
A. All owners of existing underground storage facilities which store
regulated substances subject to this Ordinance shall implement a
visual monitoring or alternative monitoring system that complies
with this Ordinance and is approved by the Fire Marshal within 18
months of the effective date of this Ordinance.
1. The monitoring system must be capable of: determining the
containment ability Of the underground storage tank and
detecting any active or future unauthorized releases.
14
ORDINANCE NO. 4147
2. If the' monitoring technique(s) selected is designed to detect
the presence of the stored regulated substance outside of the
underground storage facility, then tests must be made to
determine - if the regulated substance or any interfering
constituents exist in the soil or backfill surrounding the
underground storage facility.
7. The failure to implement an approved monitoring system shall
be cause for the Fire Cnief to require closure of the
underground storage facility pursuant to Section 11 of this
Ordinance.
B. The objective of the monitoring program for existing underground
storage facilities is to detect unauthorized releases within 72
hours of tneir occurrence. Ground water monitoring may be utilized
as a primary means of monitoring only when the underground storage
facility is located outside of an Aquifer Prote .cion Area.
C. The Fire Department shall review the proposed monitoring program
and shall approve the monitoring system if it finds that all
aspects of the monitoring alt_rnative can be implemented. If the ..
proposed monitorine alternative cannot be approved, then the Fire
Department may request the submittal of another proposed monitoring
alternative or may specify the implementation of another monitoring
alternative. 'a
D. All owners of existing underground storage facilities subject to
' this Ordinance who are not able to implement visual monitoring
shall implement one of the following monitoring alternatives in
conformance with any permit requirements imposed by the Fire
Marshal:
1. Tank Tightness Testing and Inventory Reconciliation Controls.
2. Testing or Monitoring for vapors within the Soil surrounding
the U.S.T. system. _4YF
]. Monitoring for products on the ground vat^r. -;
4. Monitoring for releases in an In .erception Barrier.
5. Automatic Monitoring of product level and automatic Inventory
Reconciliation.
6. Interstitial Monitoring between the U.S.T. and a secondary
barrier.
7. Other methods approved by the Fire Department.
E. The Fire Department shall evaluate each monitoring alternative
proposed by the applicant for a permit to determine its suitability
based on the following criteria:
15
F Q.
j ORDINANCE NO. 4147
7
1. whenever possible, a primary method of monk Other other than
ground water monitoring shall be performed, monthly at a
jainimpm.
2. when the underground storage facility is in an Aquifer
Protection Area, a monitoring method other than ground water
,00nitoring shall be utilized on a weekly or mo.c frequent
basis for leak detection monitoring.
3. Ground water monitoring may be required by the Fire Chief or
his designee in an Aquifer Protection Area. The Fire Marshal
shall review and approve the number and location of the
monitoring weld s) . More than 1 underground storage facility
may be monitored using the same well provided the well is
directly downgradient of all underground storage facilities
being monitored and is within 1,000 feet of all underground
storage facilities being monitored.
SECTION 7-1200: PERMITS
A. No person, persons, corporation or other legal entities, shall
install or operate a primary or secondary storage facility without
first obtaining a permir. to do so from the Fire Department.
B. The Fire Department shall not issue a permit to install or operate
a primr.ry or secondary underground storage facility unless adequate
plans, specifications, test data, and/or other appropriate
information have been submitted by the owner and/or operator
showing that the proposed design and construction of the facility
meet the intent and provisions of this Ordinance.
C. No person, persons, corporation or other legal entities shall
temporarily or permanently abandon a primary or secondary storage
facility.
D. No person, persons, corporation or other legal entities shall close
a primary or secondary underground storage facility without CirSt
obtaining a permit to do so from the Fire Marshal. The Fire
Marshal shall not issue a permit to temporarily or permanently
close a primary or secondary underground storage facility unless
adequate plans an' specifications and other appropriate information
have been submit_ed by the applicant showing that the proposed
closure meets the intent and provisions of this Ordinance.
E. The application for a permit pursuant to this Ordinance shall be
accompanied by the fee set by the Fire Department.
' SECTION 7-:2U9: PERMIT CONDITIONS
A. As a condition of any permit requirements to operate an underground
storage facility, the permittee shall rtport to the Department
l�
y
i
ORDINANCE NO. 4147
i
w 'within 30 days after any changes in the usage of any underground
storage tank, including;
1. Th.! storage of new hazardous substances;
2. Changes in monitoring procedure, or
3. _ . The reolacement or repair of all or part of any underground F
storage facility.
6. As a condition on any permit requirement to operate an underground
storage facility, the pecmittee shall report to the Department
within 72 hours any replacement or repair of all or part of any
underground storage facility.
C. As a condition of any permit requirement to operate an underground
storage facility, the permittee shall report to the Department any i
unautnorized release occurrence, within 24 hours of its detection,
using the procedures required in this Ordinance.
D. Written records of all monitoring performed shall be maintained on-
F
site by the operator for a period of at least 3 years from the date
the monitoring was performed. The Fire Department may requira the
submittal of the monitoring records or a summary at a frequency
that they may establish. The written records of all monitoring
performed in the past 3 years shall be shown to the Department or
duly authorized representative upon de-.and during any site
inspection. Monitoring records shall include;
1. The date and time of all monitoring ur samplinq;
2. Monitoring equipment calibration and maintenance records;
3. The results of any visual observations;
4. - •e results of all sample analysis performed in the laboratory
or in the field, including laboratory data sheets?
S. Tne logs of all readings of gauges
other test rcesul results;monitoring and
equipment, ground water elevations, or
6. The results of inventory readings and reconciliations.
A permit to operate issued by the Fire Department shall be
V The Fire Department shall not issue a permit
to operate an underground storage facility until the Department
inspects the underground storage facility and determines that the
underground storage facility complies with the provisions of these
regthen Department nfor npermit n renewa
l 9atf leastty60 owner
daysshall priors pPI to y to
the
expiration of the permit.
F. Permits may be transferred to a new underground storage facility
owner if the new underground storage facility owner does not change
17
e,a
b.
'RDINANCE NC. _4147
7 ,
any conditions of the permit., the transfer is registered with the
Depar went within 30 days of the change in ownership, and any
necessary modifications are made to the information in the initial
permit application due to the change in ownership. The Fire
Department may review, modify, or terminate the permit to operate
the underground storage facility upon receiving the ownership
transfer request.
�. The Fire Department shall not renew an underground storage `acility
permit unless the underground storage facility has been inspected
within the prior 3 years and the inspection revealed that the
underground storage facility complied with this Ordinance, as
applicable, and with all existing permit conditions. The
inspection shall be conducted by the Fire Department. If the
inspection reveals noncompliance, then the Department must verify
by a follow-up inspection that all required corrections have been
implemented before renewing the permit.
H. W.kthin 30 drys of receiving an inspection report from the
Department the permit holder shall Iile with the Department a plan
and time schedule to implement any required modifications to the
underground storage facility or to the monitoring plan needed to
achieve compliance with the intent of this Ordinance or the permit
conditions. This plan and time schedule shall also implement all
of the recommendations of the Department.
4
SECTION 7-1210: RELEASE REPORTING REQUIREMENTS
A. All unauthorized releases from the primary or secondary container
shall be reported to the Fire Department according to the
provisions of this Section.
1. All unauthorized rele 'es to secondary containers shall be
recorded on the ep,rater's monitoring reports. Such an
unauthorized release shall be determined to be an
unauthorized release requiring reporting', if the leak
detection monitoring system in the space between the primary
ar.d secondary containers can not be reactivated within 8
hours. This provision shall be applicable only to new
underground storage tanks.
2. All other unauthorized releases shall be reported pursuant to
the provisions of an 'Unauthorized release requiring
rr irting' within 24 hours after the release has been, or
at. .ld have been detected, under the monitoring system
installed or maintained.
S. Unauthorized releases requiring recording �1_'. l be reported to the
Fire Department within 5 days of the occurrence. An unauthorized
release requiring recording is one in which the leak detect: n
monitorirg system in the space between the primary and secondary
container could be reactivated within 8 hours.
18
I ORDINANCE NO. 4147
. s
1. The incident report shall be accompanied by a wt itten record
including the following information:
a. List of type, quantities, and concentration of hazardous
substances released.
i
.b, Method of cleanup.
C. Method and location of disposal of the released hazardous
substances (indicate whether a hazardous waste
manifest(s) is utilized) .
d. Method of future leak prevention of repair. If this
involves a change in operation, monitoring or management,
then appropriate reports shall also be filed and a new
permit appl.ed for.
i e. If the primary container is to continue to beised, then
a description of how the monitoring system between the
j primary and secondary container has been re-activated.
f. Facility operator's name and telephone number .
g. The approximate costs for cleanup to be submitted
voluntarily.
2. The Department shall review the information submitted pursuant
to the report of an Unauthorized Release Requiring Recording,
shall review the permit and may inspect the underground
storage facility. The Department shall find that the
containment and monitoring standards of this Ordinance can
continue to be achieved or the Department shall revoke the
permit until appropriate modifications are made to allow
compliance with the standards.
3. Deterioration of the secondary container is likely when any of
the following conditions exist:
a. The secondary container will have some loss of integrity
due to contact with the stored hazardous substances;
b. The mechanical means used to cleanup the released
hazardous substance could damage the secondary container;
or
C. Razardous substances, other than those stored in the
primary container, are added to the secondary container
for treatment or neutralization of the released hazardous
substance as part of the cleanup process.
4. if a recordable unauthorized release becomes a reportable
unauthcrized release due to initially unanticipated facts, the
release shall immediately be treated as a reportable release.
19
L�
4
R
ORDINANCE NO. 4147
ring Reporting
C. Unauthorized Release Requi
ease
een
1. Within 24 hours
after
have been naut deter red chOrized e1 h
using cegoas bced
detected, o
monitoring, the l unauthorized relnotify the reasee esceptn as
This section shalll apply y to any
defined in Section 10.8.
2. Within S wicking days of det.ccing the release, the operator
or permittee shall submit to the Department a full written
report to include all of the following information which is
known at th? time of filing the report:
a. List of type, quantity, and concentration of regulated
substances released.
p. The results of all investigations completed at that time
grounsto trmIne the extenturfacee water ontaminacio n odue s toil
then released water or
C. Method of cleanup implemented to date, proposed cleanup
actions, and approximate cost of actions taken to date.
d substanced and
any ncontaminated soils e ore ground regulated
Mthod of disposal Of water ot
surface water.
C. proposed method of repair or replacement of the primary
and secondary containers.
f, Facility operator's name and telephone number.
3. Until cleanop is complete, the operator or permittee shall
submit reports to the Department every month oc at a more
frequent interval specified by the Department. The reports
shall include the information requested in this Ordinance.
SECTION 7-1211: CLOSURE REQUIREMENTS
A. General provisions
1. All closures shall be accomplish" in conformance with Article
79 of the Uniform Fire Code and with the provisions of this
Ordinance.
2. Underground storage
Of UP
tip s 90temporarily days sha)l continue Out
to be
service for a p of this
monitored in. conformance with the applicable sections- -
Ordinance. I rementi of this
all
3. The temporary
thoseclosure
roequind orage facilities O Gr in a ti
which the
appl y
storage of regulated substances has ceased for a period of
20
,4i •
. yA
ti
e.
ORDINANCE NO. 4147
A�
more than 90 days, but less than 365 days and where the
underground storage facility owner or operator proposes .o
retain the ability to use the underground storage facility
within I year for the storage of regulated substances. This
section does not apply to underground storage facilities that
are emp.y as a result bf the withdrawal of all stored material
durina normal operating practice prior to the planned input of
additional regulated substances consistent with permit
condition-.
4. The permane . closure requirements of this Ordinance shall
apply to tt 1se underground storage facilities in which the
storage of - t4uleted substances has ceased for a period cC
more than :IFS lays or when the owner has no intent within the
next year to ute the underground storage facility for storage
of regulated sutstances.
5. The requirements of this section do not apply to those
underground storage facilities in which regulated substances
' are .Ontinued to be stored even though there is no use being
mate of the stored substance. In these cases, the applicable
containment and monitoring requirements of this Ordinance
shall continue to apply.
PP Y•
3
� 6. During the period of time between cessation of regulated
substance storage and actcal completion of urderground storage
facility closure, the applicable containment and monitoring
requirements of this Ordinance shall continue to apply.
7. Prior to closure, the underground storage facility owner shall
submit to the Department a proposal describing how the owner
intends to comply with closure requirements. The requirement
for prior submittal is waived if the storage of regulated
substances ceases as a result of an unauthorized release or to
prevent or minimize the e.`fects of an unauthorized release.
j In this situation, the underground storage facility owner
I shall submit the required proposal within 14 days of either
i the discovery of an unauthorized release or the implementation
of actions taken to prevent or minimize the effects of the
unauthorized release.
B. Existing underground storage facilities which have experienced
an unauthorized release may not be repaired and shall be
closed pursuant to the requirements of this section.
H. Temporary Closure
1. This section applies to those underground storage facilities
in which storage has ceased for a period of more than 90 days
and less than 365 days and where the owner or operator
proposes to retain the ability to use the underground storage
facility within year for the storage of regulated
substances.
21
ORDINANCE NO. 4147
2. The owner or operator shall comply with all of the followings
,
a. All residual liquid, solids, or sludges ehall be removed
and handled pursuant to the requirements of the Fire
Department.
b. If the underground storage facility contained a regulated
substance that could produce flammable vapors at standard
temperature and pressure, then the underground storage
facility, shall be purged of the flammable vapors to
levels that would preclude an explosion or such lower
levels as may be required by the Fire Department.
C. The underground storage tank may be filled with a
noncorrosive liquid that is not a regulated substance.
This liquid must be tested by a certified testing agency
and results submitted to the Department prior to its
being removed from the underground storage facility at
the end of the temporary closure period.
d. Except for required venting, all fill and access
locations and piping shall be sealed utilizing locked
caps or concrete plugs.
e. Power service shill be disconnected from all pumps
associated with the use of the underground storage tank.
3. The monitoring required pursuant to the permit may be modified
or eliminated during the temporary closure period by the
Department. The Department shall consider, in making the
above decision, the need to maintain monitoring in order to
detect unauthorized releases that may have occurred during the
time the underground storage facility was used but that have
not yet reached the monitoring locations and been detected.
Y
4. The underground storage facility shall be inspected by the
owner or operator at least once every 3 months to assure that
the temporary closure actions are still in place. This shall
include:
a. Visual inspection of all locked caps and concrete plus.
b. If locked caps are utilized, then at: least one shall be
removed to determine if any liquids or other substances
have been added to the underground storage tank or if
there has been a change in the quantity or type of liquid
added pursuant to the above Section.
C. Permanent Closure Requirements
1. Owners of underground storage facilities subject to permanent
closure shall comply with all the provisions of this
Ordinance. An underground storage facility that is required
to be permanently closed shall have the tanks removed, per
22
j I
m
ORDINANCE NO. 4147
Article 79, of the Uniform Fire Code. A tank may be abandoned
and elrosed in place, if it can be proven that removal of the
tank would constitute a hazard to the immediate structure or
underground utilities. The closing in place is at the Fire
Chief's approval.
2. • Owners of underground storage facilities proposing to
per...anently close the facility by removal shall comply with
the following requirements:
a. All residual liquid, solids, or sludges shall be removed.
b. If the underground storage facility contained a regulated
substance that could produce flammable vapors at standard
temperature and pressure, then the underground storage
facility, either in part or as a whole, shall be purged
of the flammable vapors to levels that would preclude
explosion or such lower levels as may be required by the
Department.
C. When an underground storage facility or any part et an
underground storage facility is to be disposed of, '.he
owner mast document to the Department that proper
disposal has been completed.
d. An owner of an underground storage facility or any pact
of an underground storage f .cility that is destined [or a
soecific reuse shall ide„tafy to the Department the
future underground storage facility owner, operatcr,
location of use, and nature of use.
e. An O. ,, n underground storage facility or any oar
of an u ound storage facility that is destined fc
reuse a.. .. .D material shall identify this reuse to tt.
Department.
3. Owners of underground storage facilities who propose to
permanently close a facility in place with prior approval of
the Fire Chief, shall comply with the following:
a. All residual liquid, solids, or sludges shall be removed.
b. All piping associated with the underground storage tank
shall be removed aad disposed of unless removal might
damage structures or other pipes that are being used and
that are contained in a common trench, in which case the
piping to be closed shall be emptied of all contents and
capped.
C. The underground storag tank, except for the piping that
is rlosed pursuant to the above section, shall be
completely filled with an inert solid, unless the owner
intends to use the underground storage tank for the
storage of a non-regulated substance which is compatible
23
i
� n
ORDINANCE NO. 4147
with the prevl ,us us' of the underground storage
facility.
d. A notice shall be filed and recorded with the County
Auditor , which shall describe the exact vertical and area
location of the closed underground storage facility, the
regulate* substance it contained, and the closure method.
4. The owner of an underground storage facility being closed
shall demonstrate to the Satisfaction of the Fire Chief that
no unauthorized release has occurred. This demonstration can
be based on the on-going leak detection monitoring, ^:curd
water monitoring, or soils sampling performed dL-r. no or
immediately after closure activities.
If feasible, soil samples shall be taken and analyzed
according to the following:if the -'
a underground thereof is removed* storage
facilityo n portion
then sell samples from the soils
immediately beneath the removed portions snall be taken. h'
i A separate sample shall be taken for every 200 square
feet for underground storage tanks or every 20 lineal
feet of trench for piping, at a minimum.
b. Soils shall be analyzed for all constituents of the
previously scored regulated substances and their
breakdown or transformation products.
D. The detection of any unauthorized release shall require compliance
with the reporting requirements of this Ordinance.
SECTION 7-1212: ENFORCEMENT OFFICER
A. The Fire Chief or his duly authorized representative is hereby
designated as the enforcing officer of this Ordinance. In addition
to all other grounds for revocation or termination of permits sec
forth in the general provisions hereof, any
failure
alt iron oco refusal or
the part of r refusal Of'
a permittee tc obey any rule, g or renoval of
law concerning . the installation, maintenance,
underground storage facilities shall be grounds for revocation of a
permit.
B. In addition to any penalties set forth in City of Renton Codes, _
the City
Title 7 - Fire Regulations, the permittee shall reimburse
of Renton and the local fire department for all costs incurred as a
result of tesponding to, containing, cleaning up, or monitoring the
cleaning up and disposal of any spilled or leaked regulated
substance.
24
,RDII:i�NCE NO. 4147
Y tom•SECTION 7-1213: yARIANCE
cant variances from the
of this Ordinance, if it can be shown that cne
Tie Fire Chief shhallall have the authority to 9
s?ecific requirements operation, or removal meets the intent
proposed method of installation,
of this Ordinance.
SECTION 7-1214: SEVERABILITY person or
`.` any provision of this Ordinance or its application to any p
r ov ision to other persons or circumstances shall not
c-ccumscance is held invalid, the remainder of the Ordinance o[ the
application. of the F
be affected.
SEC-ION II: This Ordinance shall be effective upon its passage,
approval, and 30 days after publication.
Aor
pASSED BY THE CITY COUNCIL this 4�h day of�_——
1`88. �O
Maxine E. Motor, .rk
— Y 1988.
pppROVED BY THE MAna this 4th of
l� t�(SS I
EarY Ci'y m•e r, Md r
prpcoved as to form:
torney
Laurence J. Wa[c City At
a
lisLed in Summary - April 8, 1988
Dcte of Publication: Pub
O6.D:08/2/5/88/nd
Y
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�� C PlanKq(slap II
Dealpn rStp 2-D,panmed d Ecology WOFAP appwad IadlMw plan w ralineeMg radon rpugach
.� U Ccnseucom(Ship 3-DepaAmert,1 Ealopy WOFAP alpw.d plans errd pacllk.nens requ4sd)
CO Dowgn pm Cmwerrolon ISIp a-Dpanmenl of EeoMMgqyy WOFAP eppowd tacYhie plan Of erpineerNg rnpod repdr.d-see
gudalvhis la.igao 131y)
b. raclay P,opd S4t0s
DOCUMENT APPROVED DATE
Eplrrulrp Reel ®Yea ❑No March, 1989 _-
F.CRIlaa peer 0 Y. in No
Plans and Spocnleetlom ❑Yw QW No
M yee,attach spprwal letters Iron tlra DeparNraM 0 Ecabgy a,k copy of report or plan wear Paga.
c. NPDEa Sena Ppma No
Note Ail faci3llas mmitrmho ,elects moat here an; hraerng
d Enloramert Ant�: rpon er 4caillee r,ISPp 1)ervJ plans arrd epe<Nicetpne
JStp 2)aP{rrwed ey Ma Ikpnman's Welw Oua4y
(]Y.. ❑No Iheheail Aesnlance Program M the time d app5ctlrm
i AXesh eocumenl•nm
le. FOR ACTiVf PROJECTS ONLY
•. Type a Protect. (Crr.dr e,ra) (21 Hna tM plennlrg drrcumed I»en ra.ier.ed.rtl pparaE by
n Pterveq the Dpanmam a Ecology?
Inplenwdalloh ❑Yea Data_ ❑No
❑Other(..P.prbllc educatlor,) Ah,."el'prwal letters from the f repanmerX a Ealogy.pre s
Spsc y. copy of report or plan co•er
We All anPtem•Laden l by the mrnl be bawd,,a y@I the
c. Puget Sound op ravel ]act 1. a
dmrif.of irp_;+oval by the Dq.rtmern d Ecology al Ore (t) Ie this po water poled In eer(rrrrce t,e a 00 12 ppoved
IIm.d app�c.tlm. redarg a weterefwn eccoWarg hi Cl.spter•00-12 WAC?
b. PIwhiW decumera stela: 0 Yes O Y.o
it, Nsa•plamtng dccunrerl Iw en Inphiramenm poles (2) X yes,what la lh.rrnaed nurrtw d IM proposed waWshed
been erLm4ed tw rwlow and•prwal bl 1M ply
D.pmn.ntd Ecdogy? NranMr.
❑Y., ❑No (3) le this Proposed p0yacl cmfhleN.Mh•rsteraMd
yw,d.1e d euGnXtal mansgemea y4n7
❑Yea ❑No
X yea.povlda a letter Jr.lead agency.
It,r,phioe e'leln m•eep.rete eMe1 d pagr
11. SOURCE OF FUNDS
'•. Teel E.I"IW Protect Coal f 411 Q41 f. Olher Federal S4ta O,anuian(Spec ty typa)
••It. Total E.IYn.ted Eepble Proles Ced f 433,041 _ �_%) 3
c Ecology Omit Shia. ( 50%) f . 216,521
d. Er.",Lan Sher. f_%)
a. Applicant,Sh.r. 50%) 3 216,521 L_%) 3
F1ene sX.cn•oa pege coal summary oulMa,g prolacl4d.lienrnhi(e 0 .dminWralbn,lerhnkal servkes,cmalrunbn esfimahis,dc.)
Tyra ld.l p.lect cat may YrdWa cats rrauery fw lb,wcc.sslul compW lon a the mW that may NOT Xa eligible foe grant or loan
Parlkpatlon vide,t r CaderrNal Clean Water FVnd P,.y.m.
e A,noud read a.the bau cal for Ecology gran•or loan ahere. -
12. REWESTED LOAN TERMS
a F1 o- SYesr Ter.n-0%aAereal Role
❑ 3-14Y#a,T.-4%Wsa,I R.I.
Cl 16-20Year,Term—5%Idwuel R.I.
Spec3k Term Rapwal•d: Year, _.. .
1 Pop 2
s
i
13. FINANCIAL HARDSHIP ASSISTANCE
FXwrwhl M1a0ahlp eeNewn<•ylawf arNw bem ae MYIg
aR`wekd„accwderw wM WAC 17395-1Sp'. Mt,I(yw/M vnaw<ehpory-MY)
•. FecMy aX.. 0 Yet 0 No
❑Y•a [J No -
X yn,pwaaa wbnJ1 Flroncbl Cq+ebIXY(AAlnt w11M1 Yaw X yes.phafe eubmX d<cvmenwtbn fp Nc~�
(eq.ImdmY 10 rWaY deDl,unwnlply/
appkubn.
M. PROJECT WMT1ON 16. INTEnGOVERNMENTAL COORDINATION
I•M 10 c bhT Don Mh poled Imowe a Inert mwe Ilan am,Nk bodYT
•. Appo.Ima1NY Dow brp wr tlif P*d °'rW Y•a ❑No -
April 1. 1991 Xyea.doal plbk boot°fWp-mo 7o°N eM oDle`IwaNltr
(11 Rojaled sIM Dab�—�-- Pa1e07
Ibn Prelxled CompM Dale July 1, 1991 yet ❑No
RI .
X yea,a11•cM1 Mtw:of egreamenl or mamwardumf of ag:eem•M
bMween aXaled plbk Dr':w art aMk Rppon N art Po�ecl.
X:w.Plena eaplem m a e•panb eheal N qpl•M ar.h
idedaN•grnmenb are rquLM N IM1a o. b-of•q or ben
•web for vll Polr<If ImN+4q more 1lunorw pWk D_Jy
111 NOLV DNPRJECT
WATEROVh ' C 1d me w mere)
�[11 1 FFGr•rndoawM1w+adlM yW apa elRwawl anr
❑Ma Wabr em Nan"0 S-M
O PQ,Sw eoler CS hSaohm
w —Aq—ua
❑W01"
❑Fw.1.Lfxe
DES TAILED PROJECT OS.,
—-- -
Prot/la•d•ewlpllm N IM Prapo°°d p,*da d°dN•lad x<pe of wak 10 a eccorrgrlehed.Anach Io APp1lcallon.
i 11. SUMMARY OF PROJECT DESCRIPTION'.
WovIX••n n•tulM+wanary N ry1e PIaPa°d prolM.(Mue1 t»ti 150 wads a Ms.)AX•ch addXbnel ah••I M nacnury. I
This project will replace an existing sanitary sewer lift station 3and force 9winhe
locates within the recharge path for City Production Wells 1, 2,
existing facilities are old and the force main failed a few years ago. A new lift
station would be equipped with a monitored secondary containment system to minimize the
possibility of leakage into the aquifer.
is, I•w11Y to IM bn10l mY Irtlo+dedpa IMI11w blomulbn N 1M•aPpkell<n h Irve•M ca:•<1•M Itil I em Ie0•Xy Whaii•d 10 vqn eM
-.. eudM dlh Iwam4bn on baAaX of be epFkeM. � .
11hAW1t'
PRaiFa NM1F
1,t1� ti 2ti
TITLE
40. SerW<:ipinei art�0 caplet In Iho dea4nftea ulopery<Ww.M1chW'p aWp^nlnp do<u.w lelbn.Io'.
Dep•nmue N Eoobpy
Wehr OVNM E."Aphhrc•Plogram,PNkyaM Evebalbn SeNbn
Ma11 s",PV-11
0"4.WA NSN 9711
► p3
L
-,
- least one hour response time in the occurrence of a power or
pump failure. This would eliminate the need for an overflow
- discharge to the River.
The vacuumm prime system on the existing pumps ,logs and
requires frequent maintenance. The existing pumps are several
years old and will soon begin to incur more frequent
maintenance. These pumps should be replaced by a more
reliable pumping system such as self-priming or submersible
pumps. The existing pumps and motors could be salvaged for
- spare parts. The control system should also be replaced. The
construction and condition of the existing control equipment
make it difficult to maintain and repair. Matey of its
components are no longer manufactured and are unavailable. A
new control and telemetry system should contain additional
alarms for intrusion, water in dry well, and pump failure as
well as complete sewage leak monitoring and alarm.
scOPL of Won
'WK 1 - DEVELOP PLANS, SPECIFICATIONS AND CONTRACT DOCUMENTS FOR
THE COTTONWOOD LIFT STATION REHABILITATION
i A. Prepare Site Plan of Proposed Improvements
1. Determine location of existing utilities and features
3 Determine location of right-of-ways, property lines,
easements
3. Develop plan for site utility and landscaping
improvements.
B. Prepare Structural Plans of Proposed Improvements
i 1. Design lift station configuration
2. Design secondary containment
!, 3. Prepare a demolition plan for existing lift station
4.
C. Prepare Mechanical Plan of Proposed Improvements
1. Conduct hydraulic investigation of existing system
components
2. Design lift station mechanical equipment layout
3. Develop suggested procedure for maintaining temporary
service during construction
D. Prepare Electrical, Control, Monitoring, and Telemetry Plans
with Enclosure Detnils, Electrical and Control Logic Diagrams
E. Prepare Contract Specifications for Proposed improvements
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17. DETAITAD PROJECT DESCRIPTION
The Cottonwood Lift Station was built in 1960 to serve an
apartment complex adjacent to the Cedar River. The lift
station consists of a below grade six foot diameter, 16 foot
deep concrete wet well. The lift station pumps are wet well
mocnted.
Access is through a 24" diameter hatch set 9" above grade.
Access to the wet well is a 12" x 18" opening directly below
the lift station access. Ventilation is provided by a 4"
steel pipe connecting the wet well to fresh air above grade.
The only above grade appurtenances are the power service and
control equipment.
The gravity sewer inlet is located above the high water level
in the wet well. Wastewater is discharged via a 6" steel pipe
approximately 120 feet to a Metro manhole in Maple Valley
Highway. Overflow is discharged to Cedar River.
Pump operation is controlled by four level controls. One pump
is called to run when the liquid level reaches the high water
level and is called to stop when the fluid level reaches the
lower water level. Pump operation is alternated each pumping
cycle. If the livid level rises to a second high water level
the standby pump is called to run. Should the liquid level
continue to rise and reach the setting of the alarm level
sensing element, an alarm condition is sent to the City shops.
An alarm condition is also triggered for low level condition, ,
power failure, and telemetry failure.
p
There are no records of any major modifications including pump
and/or motor replacement. The present condition of the
Cottonwood Lift Station is located within Zone 1 of the
City's Aquifer Protection Area. Any sewage leaks pose a
1 hazardous threat to the City's water quality. Less than two
years ago a rupture was discovered in the 6" force main. The
rupture was repaired w..h a steel band, but the pipe has not
been replaced since it was installed in 1960. The wet well is
corroded and its ability to resist leaks is unknown.
To provide secondary containment for the wet well and at the
same time continue service, it would be more cost effective to
replace the existing wet well with a new wet weal with
secondary containment. It would be more expensive to attempt
to salvage the existing wet well than to replace it entirely.
Also the structural integrity of the thirty year old facility
is unknown. A new wet well should be sized to provide at
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,. 1. Compile standard legal exhibits and general conditions.
Prepare technical specifications for lift station
rehabilitation.
3. Provide 25 document sets for bidding.
4. Provide engineer's estimate of construction• costs,
following design. -•.
TASK 2 - PROVIDE CONSTRUCTION ENGINEERING AND CONTRACT
ADMINISTRATION SERVICES
A. Provide periodic construction inspection to insure contractor
compliance with contract document..
S. Review construction submittals
C. Administer contract including processing of partial payments
,i TASR 3 - PROVIDE AS-BUILT PLANS
! A. Conduct site investigations and take measurements as necessary
B. Modify design plans to reflect construction records
� ,a J
App iicant Name CITY OF RENTON
Project Title rnrrnuWnnn Ilrt tiIATION
CENTENNIAL CLEAN WATER FUND ..
GROUND WATER ACTIVITIES AND FACILITIES
PRIORITY RATING QUESTIONNAIRE
The purpose of this category is to fund activities and facilities that directly
preserve and protect ground water quality. Public bodies applying in the state-
wide subcategory are limited to nine percent (9%) of the total funds available for d
this category, during the current funding cycle, i
This questionnaire is designed to obtain information for rating your project.
Before completing this questionnaire, peease csrefully review the description of
the rating criteria in the Pciocitp Ha tang System included in the Guidelines for
the Ground Water Funding Category. Please call your Ecology staff contact regard-
ing specific questions. ONLY THAT INFORMATION WHICH IS SUBMITTED BEFORE THE
APPLICATION DEADLINE WILL BE USED IN THIS YEAR'S MANNING PROCESS.
Questions requiring narrative answers should be answered on separate paper. Please
reference exactly the question number, title, and letter when answering. Answers
should be brief and concise. Points will not be awarded without appropriate
documentation.
1. PUBLIC HEALTH
' Has a public health emergency or severe public health hazard been declared by
the Department of Health and the Department •f Ecology for the area involved
in this project? (The proposed project mus, be designed to eliminate the
public health problem.)
1
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O YES 4 NO
If yes, you must provide documentation regarding this determination. YOU NEED
NOT PRCCEED FURTHER WITH THIS QUESTIONNAIRE: IF YOU HAVE ANSWERED YES!I
2. PREVENTION
If the proposed project is preventive (i.e. ao existing drinking water standard
ms violations or specific water quality proble ), select a. and b. If the pro-
posed project is corrective (i.e. it is devised to correct an existing water
quality problem or drinking water standard violation), select b. and c.
a. If the project is of a preventative nature, explain the nature of the
potential problem, the effects it would have, when it would occur, how it
would impact beneficial use, and how the project may help alleviate a
future water quality or public health problem.
Please see attached supplemental sheets.
ECY 040-IS4
Revised (1/90)
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zct'p uta ur name b�i � nt..'UN -.
Project Title I IF4-5TATION • '.
D. Has the public body applying for the proposed project taken any measures
toward prevention of the water pollution problem($) associated with the
project (i.e. ground water studies, comprehensive land use plan with
ground water element, zoning and subdivision ronLrols, etc)? Describe
all measures. Attach Positive identification of any report, plan, program,
ordinance or constructed facility that signifies past prevention efforts.
._ 1: this project is a corrective project which has some preventive t
aspects, please explain the preventive aspects of the project.
3. WATER QUALITY
t
a. Please describe the location and characteristics of the ground water body
affected by the proposed project. Please see attached supplemental sheets.
b. Is the proposed project located in an area designated f•Y the U.S.
Environmental Protection Agency as a sole source aq,iff, Alurmu.• ai tach
a copy of Lite letter documenting this.PleaSe See atta . G Sul ::.w tat Sheets.
F4 YES ❑ NO
C. Are violations of drinking water standards occu. . .a tkr: imme,.at
area which can be directly related to the ground •,a er qaa LrtY t obl!a It,
be corrected by the proposed project?
❑ YES IX NO
It yes, specify which drinking water standards are �riug •ooL.e.' and
when violations occurred. Please attach any relevant teat rt5 'It%,
4. BENEFICIAL USE
a. What impact does the ground water quality problem have on the following
beneficial use(s) of the aquifer?
Please see attached supplemental sheets.
ime of use
1. Drinking Water Supply
a. Proportion of the population who depend on this source of ground
water for drinking water: (Circle One)
2 3
113 - 2/3
< 1/3
None
- 2 -
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Apeellcant Name _CITY OF RENTON
Pru�ect Title �TTORAOODTIFTS17tT I0N
14
b. Estimate of number of people who will depend on this s ,.rce of ground
water for drinking within the next 10 years: (Circle One)
C-L50 000
10-50,000
<10,000
None
C. Percent of users aiiected by this ground water source's existing _
quality problems: (Circle One)
> 50
{ "20=507
< 20%
None
2.i
Describe all other beneficial uses of the water body (agriculture,
industrial, surface water, other sensitive areas).
See attached supplemental sheets.
3. Describe how the project will eliminate or mitigate impairment of
beneficial use(s).
See attached supplemental sheets.
5. ENFORCEMENT (Choose as many as apply. Provide identifying documentation to
'.. receive y points for this element.)
a. Has the Department of Ecology, Department of Social and Health Services,
or Environmental Protection Agency issued an enforcement order specific-
ally requiring the proposed project?
0 YES 0 NO
Attach a copy of the order.
b. Is the threat to public ground water so severe that any regulatory agency
requires the corrective action proposed to the project?
❑ "ES 0 NO
Attach documentation of requirement.
C. Is the project designed to enact or imp'e—rit an existing local
ordinance(s) specifically amended or crea+ improve or protect ground
water quality?
o YES X) NO
Attach identifying documentation including any ordinances and
resolutions
3 -
f J
L� J
a
}
�Y
Proj Title
Pcoj ect 7atle COTTONWOOD LIFT T
I -----��STL 10N
In
6. LOCAL INTEREST AND COMMITMENT
a. Identify documented local interest in or commitment to the proposed
project. No points will 1•e awarded without identifying documentation
attached (c.g, letters of intent, MOUs, resolutions, etc.).
See attached supplemental shee.s.
b. If you are applying for Ground Water Management Area (GWMA) [ands, is the
project part of:
Probable GW'MA only Yes No— _, Dace Listed _
Designated GWMA Yes No —_
.__ Date Listed
GW?W on FY 88
General Schedule Yes No
Approved GWMA Plan Yes _ No _ Date Approved
(Attach Ecology noti fi Cation of listing or letter of approval).
T. RECOMMENDATIONS FROM WATER POLLUTION CONTROL AUTHORITIES (Choose as many as
apply anJ provide appropriate docum.r.lation. Highest Points Will be aslinged)
a. (1) Is the proposed planning or implementation project required by the
Puget Sound Water Qualrly Authority's Ma oagencnt Plan or a water
quality management plan prepared by any other board, council,
Commission, group, or stale agency established b the study water Pollution control issues in the y Legislature to
state?
teT
YES ID NO
(2) Has a plan prepared by the public body specifically
identifying the proposed project been approved by Ecology?
0 YES ❑ SO
Provide documentation of plan and verification of ap
proval,
1.
b. (1) Has the proposed Project been specifically identified as being
needed in a ground Water or water quality management Planrepared
by a city, county, or regional planning authority, board, council,
or commission?
0 YES A NO
(2) Has the plan peen approved by the appr..priale administrative body?
0 YES 0 NO
Provide documentation of plan and verification of approval.
4
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,ApQliSant Name CI(y OF RENTON
Project Title _CO?TONW000 LIFT STATION
8. ESTABLISHMENT OF A REVENUE aOURCE (choose either a., b., or c.)
a. If the project you ace applying for is an activity, how wal implementation,
maintenance, or management of the project be funded in the future?
b. if the project you are applying for is a facility, how will operations,
maintenance, and replacement of the facility be funded in the futuret
See attached supplemental sheets.
C. If the project you are applying for will not require any future
implementation, operations, maintenance, replacement or management,
explain why.
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CTNWD.loo
Applicant Name. City of Renton
Project Title: Cottonwood Lip,Station
CENTENNIAL CLEAN WATER FUND
GROUND WATER AC IM IIES AND rACH TIES
PRIORITY RATING QUESTIONNAIRE RESPONSES
2. PREVSIRMON
a. The nature of this potential problem is contamination of 96%o:the CiWs water
supply through sewage leaks, overflows, and spills into the aquifer which is
immediately adjacent and under the existing lift statior. The effects could be
disastrous in that a severe contamination could result in the inability to use the
aquifer as a source of drinking water suppl; for a prrlonged period(months).
The most appropriate solution is the proposed project which will have secondary
coutainment for the potential pnllutants of the aquifer.
ieveral potential conta ninatum sources exist within and around the City's sole
Source aquifer. These include: 1) industry, 2) commercial retail, and 3)
transportation systems. Contamination would directly and immediately affect all
Renton customers(12.000 customers) inrludng Lakeridge Water District(750
customers). The City my t know as rapidly as possible if contamination exists,
and if$o,must L-y to in't reept it prior to its reaching the production wells.
b. Past Prevention Efforts
1. 1983 Comprehen,ive Water System Plan with groundwater protection
recommendations.
2. Well Field Monitoring Study• 1988 Document
3 Aquifer Protection Area Ordinan^e in final revision stage ready for City
Council approval - October, 1988. (Imposes land use eontrois and
regulates hazardous substances.)
4. Declaration of sole source aquifer by EPA
6 Drilling and development o:several (28)momunring wells
6. Development of a wmputer mode:of the aquifer to evaluate hydmgwloglr
flow paths and containment transoort tin -.
7. Well Field Protection Study, 1984 document.
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B. Underground Storage Tank Ordinance(See attached Ordinance No.4147)
3. WATER QUALITY
a. Locatioc and Characteristics
The aquifer . located beneath the Valley floor in the City of Renton. This I
aquifer is a very permeable water table to partially confined aquifer. The City
currently utilizes tj,is aquifer to provide over 95%of its water supply. Several
businesses are located directly over the aquifer which present significant
contamination threats to the water quality within the aquifer. See supplemental
attachment for aquifer water quality repert.
b. Sole Source Aquifer.
Sec Attachment B-Letter from EPA. The area has been declared a sole source
aquifer.
4. RENEFICLIL USE
2. Beneficial Uses Affected.
The construction of this project would replace sm edsdw 90 year-old
facility which could be currently contaminating the Citys aquifer. If this
?rgJect is funded, the threat of contamination would be completely
eliminated and additiocally, an approved monitorng system would be
installed which would detect any contamination r, ediately, hecause
this facility is located in the Aquifer Protection Area,it is very important
to consider this project of benefit to the public since 95%of the drinking
water for the City of Renton obtaued from thia aquifer.
The project addresses a water quality problem that has caused or is likely
to cause a direct economic impact on the public. Any sewuge leakage
Poses a hazardous threat to the Citys water quality. The Citye sole
source aquifer is located beneath the Valley Boor in the City of Renton.
This aquifer is a very permeable water table to the partially confined
aqui:r. The City currently utilizes this aquifer to provide over 95%of its
water supply.
Additionally, the Cedar River supports fish rums of eteelhead, chinook,
coho and other soecies as well as being the primary recharge waterway
for Lake R:al.ington. This wate, quality is particularly important for
continued fish rune,recreational uses,and drinking water supplies.
UpairmeWe to the beneficial uses noted occur when sewage overf,
contaminates the contaminates the immediate area. Fortunately, this
does sot occur frequently but the threat is present and must be dealt with.
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6. LOCAL INTEREST AND COACWTI('MENT
a. i.ocai Interest.
The City Council has ranked aquifer protection u its number one priority. The
imminent passage of a restrictive aquifer protection ordinance snd successful
pursuit of a sole source designation demonstates this,commitment. Se rndary
containment of all potential pollutants stored in this squalor protection area is
being mandated.
6. ESTABLISH74ENT OF A REVENUE SOURCE
I b. Future Fundins
s
i Funds will be made available through City of Renton sewer rates, connection
ci>arges,and arse charges.
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CITY OF RENTON, WASHINGTON
09DINAHCE N0. 4147
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AN ORDINANCE OF THE CITY OF RENTON, WASNINGTGN, AMENDING TITLE
VII (FIRE REGULATIONS) OF ORDINANCE NO. 1628 ENTITLED 'CCDE OF
GENERAL ORDINANCES OF THE CITY OF RENTON' BY ADDING CHAPTER 12
ESTABLISHING THE UNDERGROUND STORAGE i1NK SECONDARY
CONTAINMENT ORDINANCE.
THE CITY COUNCIL OF THE CITY OF RENTON, WASHINGTON, DO ORDA
AS FOLLOWS:
SECTION I: Existing Title VII, (Fire Regulations) Of
Ordinance No. 1628 entitled 'Code of General Ordirances of t`e City
of Renton is hereby amended by adding Chapter 12 as follows:
( SECTION 7-1201; TITLE
This ordinance shall be hereinafter known as the 'Underground
Storage Tank Secondary Containment Ordinance', may be cited as r
such, will be hereinafter refrcred to as 'this Ordinance', and same
cnpte II
ksnaij nown 1628
be the Codeitu and to ne[al rOrd inane esl oC the oU City dO f.aRentonce o".
SELTION 7-1202: pURPOLE AND INTENT
A. Purpose The purpose of this Ocdinanc: is to establish secondary
containment and monitoring requicemencs for new underground storage
facilities which scoro cegulat^d substances including hazardous
materials, flammable liquids, toxic substances and combustible _{
liquids. This Ordinance establishes construction standards for ncv
underground stOcage facilities establishes separate monitoring
standards for new and existing underground storage faerllt.es,
1 restaL esponse}and abandonmentsr;da and for release reporting,procedures.
emergency
specifies permit p ocedures
1 B. Inzent. Ic a the intent of this ordinance to provide a method by
!1 which:
1. safely store flarmablegu and combustibles liquids,ng and`atcxlc
materials,
terials,
substances in underground storage facilities; to crap and
safely hold for recovery any regulated substance which may
leak from underground storage facilities;
2. To provide a systematic means of monitoring to determine ine
presence Of any iea?ed substance so that it may be safely
recovered in a timely manner;
1
U.S. ENVIRONME TA'-PROTECTION AGENCY
REGIO
10
'Os",1 D 1200 SIXTH AVENUE
i A � SEATTLE.WASNINGTON 98101
AUG 2 2 SO
MD-139
e.oNr.o DgII�Is
•rr�+e•
{lU G I'M
Ron Olsen, .tilities Engineer CITY OF RENTON
City of Renton
20n Mill Avenue South Engineering Dept. >
Renton, Washington 9D055 -
Dear Mr. Olsen:
This letter w1. • myconTirm
staf ,Yore August
theh recently designatedion Cedarth
Valley 4
Jonathan Williams, of my staff, g
has dSourreeAquifer. Therce Aquifer Environmde si gnaental ttorcnuthorityc to(each ofm then ten
Regional Administrators. Consequently, t' A EP gional
A considers the sole or
principal source designation to have oa.0 ^d when approved by the Re
Ae"inistrator. In the case of the Cedar 4�- ie/ Aquifer, this action took
place on June S. 1986•
Notification of the designation decisi0- will appear In the federal
Re stet 1n the near
will send About copwo ies the noticerandb relatedn informatFon to
e ester notice,
uife
ocal , sta tr, and Mee federal
consider the Ceda�sV alley Aquifers an already designated
in the meantime, of the Safe Drinking Water Act.
Sole Source Aquifer under Section 1424(e)
sincerely,
J
William A. Mullen, CM of
Office of Ground Water
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t� Federal Register / Vol, 53. No. 191 / Mondry, October ], 1069 / Woticef g(f77g
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ENVIRONMENTAL PROTECTION
AGENCY
I FRL 3457-11
Sets Snores Designatfon or ore Cedar
Valley AgWfWr Jrg County,WA
Aeon,US.6. I on
Agency.
Arrow:Pinal determ,natlnu.
YwR,ARV:Po oast to aecdon 1424(e)of
the Me Dmtkmg Water Act.the Region
10 Administrator of the U.S. - -
Flvimnmenlel Pmtection Agency IEPAf
has aelermined that the Ceder Valley
Aqu.rar In Kurt,Cowry,Weehington fa
the principal...of dnnktrg water
for th_area and that the squtfer.If
wntaminaled waWd crave a significant - - -
hazard to public health.As a result of
this 4CHOm federal 9nsnciallp-ays-+ted
Project,eonarrvetsd W the pm,ct
review area wtU be subject m EPA
review/o a,uure WU then rolecly are
design av'omrottaW w :t they ao
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• BBM FWT dol Refster / Vol. 53. No. 191 I Monday, October ]. 19M / Notices
not:na1a a significant hazard t public Renton initialed a program to protect 4s a depth of lo,then lop feel.The aquifer
health. ;,-f cipal source of drinking water in thickness ranges from'r0 to 90 fast
senerne care This determination 19&1.and considers sole source x r.h:n the city of Renton wellfield.The
shall be promulgated for purposes of designation a slap which"w-ould alluvium ovrlin unconsolidated glacial
judicial rave •at LOC p.-.Eastam time support the Saab of the aquifer dupoait,which.in Toro.overlie folded
on October 1'..ION. protective program it eddy endows,* and faulted Eocene to Ol;ocene
aooaasses:The data up. wMch these in order to obtaw public commant EPA aedtmenbn'rocks.
Indies,cm based are n aiiable to the issued a pre release on Me%c.1W& The aquifer materials extpd
public sad may be inspected during which stated-her 11)the EPA Regional upgtedient(,.all almost coolintausly
t normal busmess hours.t the Revlon Office was co.uideting designation of cprtream to Ceder Falls.Dowdeltradleol
I City Ularar)%100 Mill A':TT,Renton the Cedar Valley Aquifer as a sale (nodhae,t west.and southwest)Irom
Wash ngton;King Coady IJbnry source aquifer.l2l copies of the petition Renton.the sand and gravel d4osis fan
Maple Valley Branch.=730 Magi• and a complementary summary r,d!.Ily Outward and hecome complexly
document wan available fin area..t3) inlcrsyend with fir ery m rasned slealal
Valle,Rd SE Maple Valley.
W.Shmgnn:King County Ubran. a public hearing was Scheduled for May of the muntral CedarRimer Dell
F..rwood Branch.t;o091wth SL 20.',M.nd(a)public cen.ment we before Vadi:.g Into the RO�Vm reed
Rennin.N'achung!on.and EPA Region 10 ,ought through tune 2.198
&Irgal s+diments aawhi.ted with Inks
4brsry•I=Sixth Avenue.Seattle. noti as. ""noting the eva!Lbdiry�of Washington cad the 0.wamish Valley.
W.ah!n• the petition and summary document. Laterally,the squifv maue,fals abort
ace a erad "Tr pp AC7 announcing the public hearing,and against older mats alaog sleep waW of
lonatha. :YiAiamt al(2p61 M24M1 or requesting public rt"- until June 2 the Cedar Piver Valley.
PTS 7 e T,.V.1. 19ee.were priced in Ne Vallev Daily water move osilit through the end
News Iit"ton Edition).the Seattle and caret deposits x :a large
gdeelaaURAar nroevearom Nua.,is Time.and the Seattle Post putt;oa of the Cedar 1 autier.
hired,given that poignant to err<m intelligencer.on May O.19e9. V,mer-filled Ours apace Detween Send
u24!cl of the Safe Or ing Water Act and revel daets occupy about 3
p2 U.S.C..gain!.5dxr11e 1,Pub,1..9Yg2J) D.Beals Fortpbmieation percent of the aquifer edlt..e.Ground
the Region 10 Administrator of the US. ;rag the derarminations which the water in the demon wel;ft area
Ent iroumaattal pmteetion Agenn has Regiaut Administration must make in g,ner..ile moves at the rapid me of
determined that she Cedar Vallev connection with the designation of an about 20 fel par day.Movement of up
Aquifer laoled!n King County. area under section 1424(e)arc:(1) 1.lee feet per day they occur 1-:24.
N eahinglan is the principal source or Whether the aquifer is the Sole or Groundwater moves dawn gradient
drinking weer for the aquifer senior principal Sources of drutking water in through the aquifer to a diresNw which
-- a.Pursuant to Section 1424{11.sal the area.and(2)whethe if parallel.the general count,of the Cedar
a1..Nally'aetaled proiec:,propose. cant heated.a Significant hazard to River.
lam construction in the protect review pub!::health would vault Based on the Agmler n-.`ergs o•tgmateaas
area wilt be subiea to ELA tea it inWrmatlnn 2,ulabie.•,this Agency
the Regional Adminiall has made preapuaamn over the.pproxlma Vly 136
Lea W, a the followng Adding,.which are the square mile Cedar River damage one.
Secttr•142as1 of the yak Drinking base,for the detetinaion need 39 inch around Renton ateples,bow
on
Water Act states:"If the Administrate: above. 19{riches each year.To to and avapornnua
determines.on his own initial,*or 1.Th.Ceder Valley Aquifer supplies They foremn:e to pc es of annually
upon petition.that ere area has an at least eo percent of the drinking water 77:enfon.Yto Munches a/
aquifer which a the Sale or principal used in the aquifer service area.and premeaatioh each year became oinelf
denkclg water sauce for the area and possibly almost 90 percent. or infiltrate tothe ground-water
+m•.h if contaminated.would omam a 2.No economically feasible ss•:eat.Ihec:p:ta!wn rotes are eon
significant hazard to public health.he alternative d,,nxing water sourvs.as higher.and evapondon rues lower,in
shall pablish Twice of that defined by EP:b guideltnae ova%.,thin the nigher elevation areas of;he
determination in the Federal Register. the arse or nearby
. drainage has-
After the publication of such notice,no 1 Sine the aquifer mplasents the Agelle-recharge occurs from
cmn,mnanrfor federal Mancel principal source of drinking water!o. pmcmitaiion upon the aquder surface.
assistance Ahroubh a grant.contract. the aquifer service area.conrammuau subsurlsce infimv from adjoining strata.
loan guarantee.or otheme,el met,be Of the aquifer would pose a significant surface roff and Seepage from the
entered into for any project which the homed to public health. aal!ey waits,and the Cedar River.No
Admmialrator determine may eadpnoa of the Galas Valley
which attempt to catouters the
mm Sad p ,
comeam a III.
Severe,through a D rc!.ti•x actoums of recharge from theas
michxrg,zone so as to create a acquittal, spec..have been published.Wale,
cgniliatm limat•d to public health.bill a (Informanon in this section represents which exche,the surface of the aquifer
c.m•nim e t for sdem AnantW an unfaNwotM summary of material generally inflhrvle easdy to the water
aaudemua may.if autMnsedi under firm:Supper,Document for Designation table became of the preponderance a•
...liver Provision of the I:w,be ertteted of the Ceder Volley.Aquder us a Sale mgr naatrnd material m the valley Ill.
into to of.or design'he protect to Shu¢e W:r.Yr.i...ed.n Sepnmber of I,�.x:.e.fund and gravel within the
assure that a will not.era coma-lox a 19ce by the Region in:)ffi.;e of Ground :me:porw:n of•fie vxllry Wt will
the pnifar,' Watrr) readily aoxpt wale,Irom ad;oining
On Mardi J.little.'he my of Renton. The Cedar Valley Aeud-r t o^a,ats of st7.1,;,rhouyh Sa-.oI in,hounding
W.shtngt.n.Submitted a petilwn r,cem(pmrV.nhor.;,::a.�..•'.Iluv¢m ati,u w,llno•transmit wvgr edsdyl.
ral og mu EPA devenam the Cedar depesimd Le me healer R% hose Rd, it siv little u'star...lets the aquifer
Valley aquder as..1,source pul. sand and gn.'el de,. ns.....the low- from hounding Strata when the Squire,
The petition state.line,the city o lying once.(,he Ceder fiver V.;l,v to hna real two twdrock or glacial ell.In
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Federal Register / Vol. 53, No. 191 / Moriday. October 3. 1999 / Notices 3871111
contrast,"totaled glacial outwnh unite artificial RII an considered part of the wale,The Cedar River.Green Roer,
in contact with the valley P'I may aquifer ens.Further upstream.the lake Wosl.ington.Seattle Winter
transmit greet amounts of 1 ter to the squire,materials are labeled Department.and Social outw"h
aquder.Machetes from the Cedar River Quaternary alluvium(Qe)on 1 2e.rlp0 aquifers beneath the Renton Highlands
probably only ccum during Rood stage scale maps of the Maple V.Iley and and Covington Drift Plain Surface water
upstream of the bedrock narrow,(about Hobart Quadrangles contained in a appropriation restrictions prevent the
1 ride east of 1-i05)judging from water their,.t th.University of Washington. city`rom developing the Cedar River.
lev-is in site near the over. Still further opstteam,the aquifer Olsen River.or Lake Washington as
Down imam from the bedrock narrows. ..terieu arc labeled Quaternary source or municipal water.Developing
the river is inferred to recharge the alluvium(Qel on a 1150,000 scale groundwater resources wlll.in the
aquifer since the over level is generally generalized geologic map of King Comfy Renton Highlands and Covington(rift
5 to 10 feel above the water table. peblished by the ILS.Geological Survey. Pien might provide an adequate
The difference between surface and Since water which exchange,the alternative supply,but would Ske'y
ground water elevation,in the Renton Cedar Valley Aquifer may originate as double the typical ratepayer's water bill,
area suggests that a hydrologic preciritalion anysvhem in the Cedar The city of Renton petition states that
impediment estate local:y beneath the Valley drainage harm.the sneamflow, the Seattle Water Department armor
Cedar River.In fact thin layers of Peel source area Includes the static Cedar guarantee enough water to replace that
and day have been reported nee,the V.'lay drainage.In order to coastal now composed rsum the squlfer,
surface on some borehole loge.Pumping federal fin inciallvauisled projects IV.Prolam Review
tests for the city of Renton indicate that from contaminating ground water.the
ground water in the wellfield area project co. �w area amcides with the When the EPA publishes a
moves se in a aemi-confined&quite:. boundarle, f the stnamliow source deu:mination for a sole or principal
Pump test results also suggest that arc,. drinking water source.the consequence
pumping the well fie'-IRuenees Ground water withdrawn fens the is than no xmmilment for federal
ground-water mov'. t on the opposite, aquifer by the city of Renton has financial assistance may be made if the
side of the Geller i•i. ether than historically exceeded the public water Admimstntx finds that the federal
drswing water directly from the ever, supply quality standards established by financially-essisted prolecf may
Ultimately.however.the Cedar River the Washtngiun Department of Social contaminate the aquifer through a
and the aquifer both depend upon and Health Services(I)SHSI and the Merolla zone to as to create a -
PcociPltlion within the Cedar River U.S.Environmental Protection Agency significant pound to public health(Safe
drainage basin for their recharge. fEPAI.Recently.ground-water Drinking Water Act semipn 1424(e).e2
Crowd water rom the Gder Valley contamination has been abser,ad in U.S.C.00tt-$ell.In many cases.these
Aquifer naturally discharges to the mcnitoeng well,within Renton although federal financially-assisted prcl may
Gder River above Ira bedrock nartowe, not in any of the city',operating water oisa be snuyzed in a Naltonal
and to Lake Waatngton and the supply wells.Monlrnrlrg wells have Environmental Policy Act(NEPA)
Dartmouth River as underRow.Antilles] documented elevated level,of benzene document 42 U.S.C.e522(z)(cl,
discharge from the aquifer Occurs maUy suspected to have originated from To,treanrlme EPA',review of the
from the pry of Renton a production leaking underground gasoline storage ".,.his envtronmcntal impacts upon
we lb.The sty of Renton a welt,all akal designated aquifers.when an action is
roamed widen•one quarter square mile The Cedar Valley luifer is highly analyzed in a NEPA document the two
ens.:soap at sn se...to tote ;f e575 vulnerable to cam nation in the review will be consolidated.and both
gallone per minup(6.0.million gallons Renton area because of are shallow authorities wdl be cited.The EPA
per day I The city moor,that water depth's tonsured water and the high review under the Safe Drinking Water
leans in... .:!Is genes.. .:drop less rural ct potenual sources of Act of federal SnanctallY-assi.tad
Ivan five leaf eaen summe-and moaund contamr.citron m the urbanized area prmecis potentially allotting sole ua
completely during the win or month..No c•,erlyin t the aquifer.Upgradtent leasq pr.na:;<I source uguifers will be
antdive which anemPt to falculate the of Renton.:he lower pei non density mciudad in the EPA m,:e,.of any NZPA
rem we amounts of discsarht from the presents fewer"trntial sources of document accon,ianying the seme
+quite,have been publi,ned contamication,but the water level federal bnanc,ally-a,su&d Project Into
The aquder boundaries cor- --.end to generalky zeta closer 10 the naa.u. little, transmuting IDIA'a comm,ets an
the area[..tell of+hei pout I Potential sources of contemplation the find Environmental lmp:,t
alluvium of the Inwer Cedar hrvet include undagound sturegr..ank Statement to the les l agency will be the
Valley.Th.aquifrr isaaenals,depvnod fadury improper stunna.Mn rmit.or v,,h,c!e for mlmming the lead agency of
j `v the Czda-'l and tnoulary disposal of hazardous mameals. CPA's actions unoor section leNiel.
araiMgas.Mannar almost continuouuly icodental spill,of hazardous material V.Discussion of Public Camntsot
between Revlon and Cedar Falls.a transported across the squire,septic
distance of shout 25 miles.In the Renton tank#M...I.storm runoff.pesticides. Comments were incorrect from the
one,these Quaternary deposits an and chemical fertilizers.Numerous King County Geologist.the Seattle
labeled Qac and Do,on a 114.000 scat potential sources of contamination also Wane Department.and the Seattle-King
map,published by the U.S.Geological xist off the surface of the&quite,but County Health Department The County
Su,,, which"undo from the sessions within the Inner Gder Valley drainage Ecologist.an employee m a branch of
mars -(,he.quite,In about Nos area.Since the Cady River and IM the Public Works Department submitted
miles east of Renton.Outcrop Code. Valley squire.am hydrologically additional geological and hydrological
relationship,strongly suggest that these connected.wins,which vfaster• about nearby arc".and
aquifer mneoals also,occur beneath threat to a.• aaler quality of the river pomtsd out that the!egal reparation
am ical fill which coven much of,he may also Pau a threat to the,quite,. Jerween surface and ground-writer
low-lying art"of Renton.Therefore. The,city of Renton has identified fix msaurcn in the area should not be
.retain Return.mapped a.envecod by putmtt.l alternative,names of drinking c...imed In mean that the resources ere
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38782 Federal Ragirter / Vol. 53. No. 191 / Monday. October 3. 111 / Notices
Physically distinct.The�e.tde 1�nit
Cauntp Department of Public II,,,th #
sulponed the proposed designation.The
Seattle Water Department requested
thal EPA meet w 4h the Department to
discuss the impucar bns of role souce
designation.
In response to com- v,from the
King Co...ity Csologist.EPA requested
that the city of Renton submit an
economic analysis for the Covington
Drift Plain similar to one presented in
the petition for the Renton h4ghlandr.
The additional information provided by
Iha WWI wee submitted to the city of
Renton for that purpose.The analysis
shows that adequate ground ware,
resources may be obtained from glacial
oWvvash aquifers beneath the Covington
Drift Plan but are economically
infeasible according to EPA gu Ie.mer.
EPA agrees the,the surface water
resource,aid the shallow ground-water
resources of the Cedar Valley drainage
basin are hydroiogically connec ed.For
this reason.EPA has incorporated the
entire Cedar River drainage basin into
the strtarrnow source area.
EPA has contacted the Seattle Water
Depumi and wig meet with the
Department to discuss bre role source
24ulfer progum and ground-water
prntepion in genenL The letter from the
Seattle King County Department of
Public HRAth did not request or mgv,m
a response.
V1.Summary
Torts,,ace on only affects the Cedar
Valley Agmfer ar-d its nreamFlow
source area in King Count,,
Wa•hmgton.This action provides a
mvmw ore-es-to ensure that necessary
ground-water prctection measures are
incorporated into federal financially-
assisted projects.
Roby D.Russell
Aegro,,1Admmarmmr.
Dare I+eaim
I Doc 19-i^ai1 GIM F�0.aa.ar5 r-il
arruaa coot aaaaw
AQ^u IFER PROTECTION—ONE WASBINCTON CITY'S EXPERIENCE
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Stuart 1. Brow and Jeffery H. Randall
CHZM HILL
1 P.O. BOX 91500
a
Bellevue. Washington 98009-2050
Abstract
In 1^F3, the City of Renton, Washington, initiated a program to pro-
tect au aquifer that provides approximately 85 percent of its eupply. To
date, the program has been conducted in three phases.
Phase I, _he Well Field Protection Study, consisted of the following:
o Hydrogeologic characterization and contaminant migration pathway
identification.
o Contaminant source inventory
o Preventative measure development
o Public information program
Phase I1, the Well Field Monitoring Study, was initiated in 1986 with
the goal of delineating that portion of the overall aquifer requiring pro.
tectlon (i.e-. an aquifer protection area). An aquifer protection area
was delineated by instaliing a series of monitoring wells around the City
Of Renton well field. Fluctuations in grcnad water elevations under dif-
ferent well field pumping conditions were measured for a period of 1 year.
Phase III, Ordinance Development, was also initiated in 1986. Several '
of the preventative measures developed in Phase I were incorporated into -
two ordinances, one for aquifer protection, the other for secondary con-
tainment of underground storage facilities.
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Introduction 2
The City of Renton. Washington, relies on ground water for approxi-
mately 85 percent of its water supply. Ground water is withdrawn from the
Ceder 1 :er aquifer by five wells capable of producing 14 million gallons
per day. Figure 1 shows the general location of the City of Renton and
its well field.
• 1 Historically, the well field has produced high-quality water that
consistently exceeds State of Washington Department of Social and Health
Services USES) and Environmental Protection Agency (EPA) quality standards
for public water supplies.
y The Cedar River aquifer, however, is vulnerable to contamination b.-
cause grncnd Water is relatively shallow and there are a number of poten-
tial sources of contamination in close proximity to the well field. Ground
water occurs under water table conditions at a depth of approximately
20 feet below the ground surface; the City of Renton production wells are
I screened at depthr ranging from 35 to 105 feet. As Figure 1 shows, the
centrcl business !Ss,ric, and several major transportation corridors (i.e.,
Interstat. 405 and State Route 169) are near the well field. These and
other potential sources of contamination pose a significant threat to the
aquifer. The threat is likely to increase in the future because of in-
creased urban and commercial development in the area and proposed hi^hvay
expansions.
It was a potentially catastrophic incident that prompted -he City of -
Renton to initiate Its aquifer protection program. In 1983, a tanker truck
carrying petroleum overturned on Irterstate 405 wtthin 100 feet of Well 9.
While this incident did rot impact ground water quality. it did force the
City of Rector, to take action.
irhis paper traces the development of the City of Renton aquifer pro-
tection program with an emphasis on the experience that has been gained
r 5 over the last 4 years. To date, the City of Renton aquifer protecticn
iprogram has been conductea in three phases (see Figure 2):
o Phase 1--Well Field Protection Study
n Phase 2--Well Field Monitoring Study
o Phase 3—Ordinance Development
Each phase of the program is discussed in more detail below. -
Phase 1--Well Field Protection Study
Phase 1, the Well Field Protection Study (CH2M HILL, 1984). in,olved:
•� 1. Characterization of the hydrogeology of the Cedar River aquife* and
potential contaminant migration pathways
,j 2. Invcitory of potential sources of contamination
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Y
MWO�M
Railroad / � f
wvr
arYr
Cenhel Maws
Pusiness
Dis11k1 C,
Well 9 ell 9 ' *LOPATM
s
Wells
1 6 4 Well B vicinity Map
Desist �� /
Business
Disdkl SR te9
i
Cedar
1.405
x Existing Monitoring Well
Production Well
P lGln1P. 1. CITY OP nnNTON WELL PIMA, GPM
W
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PROGRAM PHASES PROGRAM ELEMENTS
Hydrogcolog;c Characterization
PHASE t Potential Source Identification
WELL FIELD
PROTECTION
STUDY i Preventative Measure Development
III Public Information Program
MonApnng WeII/$:ream Gage Insa':ation
Water Level Monitoring
PHASE 2
WELL FIELD
MONG ST DY Wale. Leve'Data Evaluation
STUDY I
Water Duality Sampling
i
PHASE 3 I AGwler Protection Ordinance
ORDINANCE
DEVELOPMENT
I Secondary Conainmeni Ortlinance
FIGURE 2. CITY OF RENfON AQUIPP.R PROTECTION PROGRAM PRASP.S AND EI.P NTS
y
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i . . m
_,.. ........��..... r,.,., .. run _...r......�x.... r�
r
3. Development of preventative measures for different t)oes of
sources Potential
5
4• Initiation of a public Information program '
PydroReo l`ha r__„ information
.
Available geologic and hydrologic i information was reviewed to deter-
(2) the tether mine (1) the approximate limits and character of the Cedar River aquifer,
Con pathways.ge area for the aquifer, and (3) potential contaminant migra-
Water Resources Bulletin NO. 28 (Department of Water Resources, lgv3),
gyring logs for the City of Renton production wells, and a hydrologic an-
slysls of We.i 9 constituted the available information. Based on this
Information. is was determined that the Cedar River highly permeable sand and gravel 70 to 9,- fee[ in thaquifer 1= a unit of
ickness. Ground wafer
occurs under water table conditions at a depth of approximately 20 feet
below the land surface. Regionally, r
'
Cedar River v Ile 7 8 ound water ID westward, down the
Fig-
ure I Y, ultimately discharging to Lake Washington (see FIg-
) Locally, ground water movement is inf
3 s lueaced by well field pumping
and the Cedar River. Figure hows the lateral extent wi the aquifer as
It was defined in the Well Field P1'n[ectitn Study. Except for the north-
western boundary, the lateral extent of _he aquifer Is reasonably we
defined. To the northeast and southeast of the Cedar River, the exte:.: of
the aquifer is defined by the valley walls. To the southeast there is a
bedrock narrs located about 4,000 feet from the well field. The north-
western boundary was chosen to be the theoretical maximum radius of influ-
once for the well fizld, although the aquifer itsel: extends beyond these
I
imits.
Recharge to the Cedar River aquifer comes from three sources: (1) flew
i from the Cedar River drainage basin upstream of the bedrock narrows,
rainfall uplandareas to infiltration. d ) drainage
the northwestandsouthwest surface aof the sCedareRiver. from
Figure 4 Is a generalized cress section for the Cedar River valley
near the well field. It illustrates the four contaminant migration path-
ways that were identified:
! 1. Migration from the land surface to the water cable as a result of
rainfall infiltration
2. Discharge of Cedar River water to the aquifer during flood flow..
3. Surface and subsu-fete migration from upland areas
4• Subsurface migration down the Cedar River valley
The hydrogeologic characterization also included a revs, of available
Cedar River end ground water quality informsclon. This review found that
water in the Cedar River aquifer is of good quality and is considerably
better than that of the Ced-r River. Sufflci.nt data were not available
cu document current trends In aquifer or rive: water quality,
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.. r
e
'a
rY -- CEDAR RIVER AQUIFER-- — '� NE
SURFACE
INFILTRATION SOURCE+
i SURFACE RUNOFF
�--�/ ,,` /......•ram^ -
. ''•':,. �`-.. +� ¢ RIVER L----..------ �1
¢ 1
R WELL WATER TABLE SURFACE .�
�' W SOURCE . e
� f
PIPELINE OR TANK \
SUBSURFACE
SOURCE
I
Not to Sul
PICURB 4. CONTAMINANT MIGRATION PATIIMAYS
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GAP-27-0510 CDITCNWaD LIFT STA`TICN REP - 1990 Crant AF-pl-icaticn 2
Potential Source Identification g
A four-step process was used to inventory potential sources of
contamination (ate Figure 5). The fitat ecep was to identify existing
land uses within the limits of the Cedar River aquifer and its recharge ^!
areas that could be potential sources of contaminatien. Incidents that
could lead to a contaminant release to the aquifer were also Identified
(e.g., spills and sever overflows). ;w
The second •,tep vas to divide the potential codtaminatioc sources
into five general categories:
1. Subsurface—These are sources that originate below the ground surface
(e.g., underground storage facilities).
2. Surface--These sources originate at the ground surface (e.g., pesti-
cide and fertilizer application).
3. River—These sources originate upstream (east) of the bedrock narrows
or as direct discharges (e.g., storm severs).
4. Transportation--These sources originate from runoff or spills along
rajor transportation corridors (e.g., Interstate 405 and State
Route 169).
I
5. General--Sources that do not fall into any of the other four cate-
gories were considered general sources (e.g., residential use and
disposa- of chemicals). Most general sources are nonpolnt, or dis-
tributed. sources.
1 The third step in the process was to characterize each potential
i
source in terms of the following key factors:
1. Nature of the hazard posed by the source
j
2. Source location with respect to the well field and probable direction
of ground water movement
3. Quantity of chemical
4. Probability of occurrence of a release
5. Potential for chemical attenua.ion because of absorption, precipita-
tion, degradation, and dilution
6. Ability to detect a release and pravras migration
This characterization step required considereb a review of available infor-
mation on each potential source.
The fourth, and final, step was to rank each source according to its
potential for impacting the aquifer. The six factors listed above were
used to develop a qualitative ranking. Table 1 summarizes the specific
sources that were identified, by category, and their associated ranking.
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3
Step 1:
Inventory Land Uses
and
Identify Contamination Incidents
Step 2:
i Categorize Potential Sources "
k
Step 3:
Characterize Potential Sources
Step 4:
Rank Potential Sources
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PIODRE $, CITY OF RENTON POTENTIAL SOURCE IDENTIPICATION pROCESS
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Table 1
CITY UP REHYM LnNTA.NINANT SOURCE GYAIAIATILN
[ at ion
of Source ProbOilltr MOD111t/ D1[(!cult) pars!!
Hetardoos (nearness Potential of heck o[ of
Cate 9 Nature to wells! antlt mft'mce attmue[lonl Detectlon Relatlre
' Rlrer Slynlflcence
Septic tanks High Low hedl. Medlua Landfills Unlao. Lor Unknown Medlua Low M<Low Neill.
Gull Selm Stallm High W High Medlua L, W.
n
Cottonwond Sewage parflor High Medlua Unknown Medl. r High Medlin
Fal.h Ridge Sera, per(lor High Meal. Unknown Med La .ter Lor Medl.
Lor 'ter !teal.
SADeurface
evec9 nitt Station High High HI
Union Oil Service Station High Medl High High
Es-on servlhw Station Hi,h Meto. High Meal. High N1gA N19A
Anandoned Se", Station rko. Loi High Medluv Medl. Mtgh Meal.
nknoM
Stmery Concret. Plant high Low Low Medlua High MHigh
North Aaerlem Nefractorin Coapen) High High
Nigh Meal. HI. High High
sanitar Severe High Medi.
I. High
Lor
stop Sewers Nl9h Hlgh High Medlua Ned!. Nigh High
McLow High Xedl. Lw McAI. Medgh Medlua
Ceaeterr Fill
Inv Mtdlu Lor ealA Inr NI
Low
ITlve to F111 Sit., Unknown Medlua Unknown MedA. Unknown Med. Medlw
Surface
—SPigs and Pertlllters Nigh Nigh Lor High tar Med!. Medl.
Tuns�or(atiqu
! 1 <<16 SSSpilll High High High High Nigh Lana High
SP 169 Spill High High High High Cltr strrct Spill High High High 9 H'� Low N19A
I Railroad Spill High Nigh Medlua M<Ln. H1yA Low High
1-405 Runoff Hlvh Low Medlua
SA 169 Runoff Medlua High High High Nedi. Low high
City Street pww[Y Medium High Meal. High Meal. Low l
High Medl. High M<dl. High Hedl. Lor Me u
General
Coal Ines U."Ovo Lor Unknown Low Residential Hea4 Iar Medl. Lor
g eI. Low hg Oil Tanks High Low Hih XA Residential Use and DlaRoaal Nlgn Lo• MHAI. High Lo w High MMlua
Dry Cleaners High Low tawigh Medlua
Co.Lor N.9h High hedlua
H
0
.y..
a
h
S
Development of Preventative Measures 11 `
Measures for preventing, rather than correcting, contamination were
developed for those potentia:. sources that were ranked as high or medium
(see Table 1). It was decided that preventative measures were probably
not necessary at this time for sources that ranked low.
Two types of preventative measures were developed: (1) general mea-
sures applicable to a number of sources and (2) measures applicable to
specific sources. Table 2 summarizes the preventative measures that were
j developed.
i
Public Information Program
In an effort to Inform the public of the Deed to protect ground Ovate-
quality, the City of Renton prepared a public information leaflet. The
leaflet discusses the importance of protecting ground water quality and
presents a series of do's and don'ts for the handling and disposal of po-
tential contaminants (e.g., paints, solvents, lubricating rils, household '
cleaners, and antifreeze). The City of Renton distributes the le"le tc
de,elopers, contractors, engineers, and local citizens.
The general success of ,he leaflet promptel the City to prepare a
second leaflet for Springbrook bprings, their secondary source of water
supply.
Phase 2—Well Field Monitoring Study
One of the major firlings of the Well Field Protection Study was that
an aquifer protection area around the yell field could not be delineated
based on the available hydrogeologic information. For this reason, the
City of Renton initiated the Well Field Monitoring Study in 1586. The
purpose of this study was to monitor water levels in the aquifer and the
Cedar River for a period of 1 year. The water level data were used to y
determine:
1. The zone of influence for the well field under different pumping
conditions
2. Rates of ground water uovement in the immedlate vicinity of the well.
field
3. Interactions between the Cedar River and the aquifer
The zone of influence was delineated to provide the City of Renton
with a defensible basis for establishing the boundaries of the aquifer
protection area referred to (n its aquifer protection ordinance. Rates of
ground water movement were determined so that ground water monitoring re-
quirements in the aquifer protection ordinance could be established and
response times for potential contamination incidents could be estimated.
An understanding of the interactions between the Cedar River and the
aquifer was needed to date mine the potential significance of sources that
impact the quality of the Cedar River.
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� Table 2
13
SUMMARY OF GENERAL AND SPE.IFIC PREVENTATIVE MEASURES
7vpe of Measure Description of Preventative Measure
General Develop policies that limit land use within the aquifer
recharge area. Such policies include appropriate zon-
ing to limit or eliminate commercial activities that
i are potential contaminant sources and the acquisition
of such properties for conversion to park, greenbelt,
or another noacontsmluating use.
Increase participation by the City of Renton in resolu-
tion of regional issues that may impact aquifer protec-
Lion. These Segues include I-405/1-Su and other
highway planning, construction, and traffic restric-
tions; continued use of and hauling of waste to the
Cedar Hills landfill; land use in the river basin east
of the city limi.e; sewerage of outlying areas; and
maintenance of minimum stream flows in the Cedar River.
^ '1.Lioc the EIA to have the Cedar R1-rcr aquifer de-
N aa.cd a sole-source supply.
a
Munitor water table elevations in the aquifer area to p
confirm ground water and contaminant flow paths.
Monitor water quall.ty of both vel! (aquifer) va':er and
river water to obsei'rie trends ir contaminan: le gels.
Develop an emergency response plen to deal with i,s-
slb'_e aquifer contaminetion incidents.
Specific
iRiver Sources Provide sever service for the Maplewood Addition. -
{ Review monitoring of the Cedar Hills and Queen City
Farms landfills to ascertain leachate movement patterns
and the need for additional protective measures in the
future.
Modify Cottonwood and Falcon Ridge Sewage Pump Scat
as required to minimize chance of overflows.
Subsurface Adopt an crdinance that requires construction of Lm-
Sources prove: storage facilities for hazardous substances,
primarily the petroleum produ cs at service stations
and industrial facilities. Ban new service stations in
the aquifer area.
Continue monitoring squl.fer water quality to detect
leakage from adjacent sanitary severs, with immediate
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Table 2
(Continued) 13
S_vDe of Measure Description of Preventative Measure _
i
repair of any know leaks in such severs. The aban-
doned severs in Cedar River Park should be completely
plugged.
A.
Repair any know leaks in atom severs and extend atnm "
severs to discharge to the river downstream of Wells I
and 2 wherever possible. Prevent contaminants from a'✓ � ,[ ' '
entering atom severs whenever possible.
I Continue monitoring the operation of the three private
1 fill sites near Mt. Olivet Cemetery to assure thst no y F
hazardnus materials are included in the fill.
Surface Continue to restrain the use of herbicides, pesticides, % `:`
Sources and fertilizers by the City, Washington State Depart- :a(..
i ment of Transportation, and Burlington Northern
I Railroad.
Transportation Collect surface runoff from all paved areas of I-405
Sources that drain toward the aquifer and discharge atom water
to the river at a point dour stream of Wells 1 and 2.
Construct Jersey barriers along the paved shoulders and -
on/off-ramrs of I-405 to prevent spills in unpaved
areas and to protect the well facilities from physical
impact.
Control construction activities (such as refueling of
equipment) during expansion of I-405.
! Address protection of the well field during preparatior
of the envizonmental impact statement for the I-405
expansion.
Collect surface runoff from all paved areas of SR 169
in the vicinity of the aquifer and discharge storm
water to the river downstream of Wells 1 and 2.
r
Construct Jersey barriers along SR 169 to prevent
spills in unpaved areas.
Implement restrictions on the types of hazardous ma-
terials that can be transported on I-405. SR 169. and
city streets in the vicinity of the aquifer.
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J Table 2 31
1 (Continued)
Type of Mzasure Description of Preventative Measure
jGeneral Survey the aquifer recharge area to determine the num-
Sources bar of existing heat Sug oil and motor fuel stooge
tanks; evaluate the risk they represent to the aquifer
end develop • g a
program for minimizing leakage from these
� tanks, if necessary.
Sponsor an education program (through inserts in
monthly utility billings or other means) that informs
the public of the potential consequences of residential
disposal of hazardous materials such as solvents,
pesticides, and petroleum products.
i
Provide convenient collection centers for the public to
dispose of such materials that are unacceptable to
normal garbage collection services.
Monitor operations of any dry cleaning facilities to
ensure proper disposal of cleaning solvents.
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t
A secondary purpose of the Well Field Monitoring Study was to obtain 15
baseline ground water quality data for the aquifer. These data are needed
to provide a basis for detecting future changes in water quality.
The steps followed in conducting the study included:
1. Determining the number, location, size, and configuration of ground
water moot oring wells and Cedar River gaging stations.
2. Identifying required monitoring equipment and developing a monitoring
program
3. Drilling and constructing monitoring wells.
4. Assisting the City of Renton in the installation of the monitoring
equipment and in the initiation of data collection.
5. Evaluating water level data collected by the City of Renton.
6. Analyzing ground water samples collected from selected monitoring
wells to obtain baseline water quality information.
i Prior to the initiation of the Well Field Monitoring Study, the well : ,-(.
field Consisted of five production wells and two monitoring wells (see
Figure 1). Six additional monitoring wells were initially ins ed in
the vicinity of the well field. Five of these wells were Snst..._ad between y
500 and 1,300 feet regionally downgraL<nt of the well field. The reason
for locating these wells in this area was to define the extent to which
i the well field reverses the regional ground water gradient back towards '� -
the production wells; the area of gradient reversal defines the zone of `�,
11 influence. The sixth well was located regionally upgradient of the well
field to determine the elevation of the water table before it is influenced
1 by the well field.
After monitoring ground water elevations for several months. it was
discovered that the zone of influence extended further to the northwest
than was originally anticipated. For this reason, two additional monitor-
ing wells were installed. At the same time, a second upgradient well was
installed on the south side of the Cedar River. Figure 6 shows the general
location of each monitoring well.
Figure 6 also shows the location of the three Cedar River gaging sta-
tions. Gaging stations were installed upstream and downstream of the well
field and at the USGS gaging station downstream of the Mill Avenue Bridge.
During the period of March 1986 to February 1987, ground water and
Cedar River elevations were measured twenty times. Except for the first
two rounds of monitoring, all monitoring was conducted by City of Renton
staff. City of Renton staff were provided with trainl'ig on proper water
level measurement procedures and were assisted on their first several mon-
itoring rounds. To promote consistency in the collection and reporting of
water level monitoring results, the City of Renton was provided a standard
form for recording measurements.
1
j
1 j I •
• �j
• • Well 7
We119
Well
� 1 d 2 1 Well
1-4
Cedar
9�
�j x Existing Observallon We'I
• New Monitoring Well
/ ® River Gage
i
PIGIMP.. 6. MnNITONING MCLI. GNn 'TnPAM CAGE LOCATIONS
��y e
+`ff.a�bb
Teo types of eater level tmooltozing were conducted during the study 17
pe:lod. The first was routf ne monitoring throughout the study period to
determine how seasonal changes in regional water table elevations and Cedar 1'!ti ty
River flowrates might impact ground water movement. The second was opera- ,a,
tional sampling to determine how changes in well field operation might is
impact ground water aovement. The second type of monitoring involved mea-
nuring water levels when differer, combinations of wells were pumping.
Water level data for each round of sampling were contoured to obtain { +� �
1 a aeries of eater table maps. Figure 7 shows an example of one of the
i eater table maps. The data used to construct this map were collected 1n H
August 1986. The water levels are representative of a relatively low flo✓
condition in the Cedar River and extensive pumpage of the well field to err• . .
meet the City's high demand for water in the Bummer.
The arrows on Figure 7 illustrate the probable direction of ground -4
water movement. Io the scutheaet of the well field, ground eater tends to
move down the Cedar River valley toward the well field (i.e., to the north-
west; . To the northwest of the we'll field, regional ground were. movement
is to the northwest toward Lake Washington. Locally, -e is a reversal
in the regional gradient back tot_rds the well field. :e this reversal -
first occurs defines the extent of the zone of influence of the well field.
1
The dashed line on Figure 7 shoes the approximate location of the zone of
influence during August 1986.
}
The eater table maps for each round of sampling showed that the extent
of the zone of influence tends to vary in response to well field operation
and Cedar River flovrate. The zone of influence expanded under high well
field pumping and low Cedar River flow conditions. Sources located within
the zone of influence and upgradlent of the well field have a potential
1 for impacting the City's water supply, because ground water movement is
toward the well field. Sources located outside the zone of influence are
! not likely to cause an impact because ground water mevemen' is away from
the well field.
In addition to being useful in delineating the zone of influence, the
water table maps were also useful in determining rates of ground water
i movement. Changes in water table elevation with distance define a gradient
�I that can be used in conjunction with the aquifer pe meability and effective
porosity to -alculate a ground water velocity. Knowing the velocity, one
can estimate the time it would cake for ground water to move from a source
to one of the wells in the well field. 'his time defines the minimum re-
Bponse time shou:.d a contamination incident occur.
i
Phase 3--Ordinance Development
The Well Field Prate tion Study recommended that the City of Renton
implement administrative restrictions to control land uses and activities
that could impact the well field. The City decided to implement these
restrictions through an aquifer protection ordinance. The Well Field Pro-
tection Study also recommended that restrictions be placed on underground
storage facilities, particularly in the vicinity ,f the well field. A
separate secondary containment ordinance was nrafted with special
a ,� /
\
Oe
Well 3 Well 9
/ ll\5 •
Wells /
II S: We11 6
1\
� I-4G5 /
Cedar
—17--- Croundw aler Elevation }
Direcllon of Groundwater Movement
Ektent of Zone of lnllnence
PIGURR 7. TYPICAL GR011NON11TF.R ►.I.P.VMIONS DIIRING 11UCIIST 1986
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previsions for new and existing underground Storage facilities located in
the aquifer protection area 13
&uffcr Protection Ordinance
The intent of the aquifer protection ordinance is to protect the
ground aster resources of the City of Renton by:
1. Estalllshing an aquifer protection area around the City of Renton
well field
2. Regulating the Storage, handling, use, and productler, of Substances
and limiting land uses that could lead to significant ground water
quality degradation
The Well Field Monitoring Study results were used to delineate the
boundaries of the aquifer protection area and to subdivide the aquifer
protection area into two zones based on estimated ground water travel
times. In the draft ordinance, Zone I was defined as the land area situ-
ated between the well field and the 180-day ground water travel-time con-
tour. Zone 2 was defined as the land area between the 180-day ground
water travel-time contour and the outer limits of the zone of influence.
A:1 facility owners who store, hardle, use, or
p
st.nces within Zone I are required to install one or more cmonl regulated o:ingwells
I and sample ground water Semiannually.
I
Facility owners in both Zones I and 2 are required to provide con-
tainment devices adequate in size to contain all unauthorized relt .ses
onsite and to prepare a management plan containing procedures to be fol-
lowed to prevent, control, collect, and dispose of any release of a regu-
lated substance. Facility owners in both zones are also required to apply
for a well field protection operating
permit.
Detection of ground water contamination in an owner's monitoring f'
well(s) requires that the Owner cease operation until the Source of con-
tamination is Identified and cleanup is completed.
Exemptions to the requirements in ;.he ordinance include:
1. Transportation of materials through Zone 1, as long as the vehicle is
in continuous transit
2• Vehicular use of fuels and lubricants
e
3. Use of pesticides, herbicides, and fungicides, as long as their use
is in strict confomlty with EPA requirements
4. Use of fertilizers within established limitations
5. Retail Sales activities
The City of Renton plans to extend the provisions of the aquifer pro-
tection ordinance to Springbrook Springs, two productirn wells that are
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currently not in operation, and a new well field being developed approxi-
mately 1 mile east of the exlsting well field.
_Secondary Containment Ordinance
The City of Renton alsa drafrr, a Secondary Containment Ordinance.
This ordinance in pc.marily directed ac establishing secondary containment
and monitoring requirements for all new underground storage facilities.
Specifically, the ordinance:
i
Establishes construction standards for new and existing facilities
2. Establishes separate monitoring standards for new and existing
llcfes
3. Establishes standards for release reporting, emergency response plan-
ning, and closure
{- 4. Specifies permit requirements
j The ordinance contains two important features directed at prr.tecting
ground water quality. The first Is the establishment of special monitoring
standards for existing facilities located within an aquifer protection
area. The ordinance requires that both primary and secondary monitoring
methods be used. Where possible, visual mcnitoring is to be used as the
primary method. Facilities owners who are unable to implement visual men-
Storing will be allowed to select from a sei.es of alternative primary
monitoring methods. Secondary monitoring will be achieved through the
installation and sampling of one or pore ground water monitoring wells.
Monthly, or more frequent, monitoring by the primary method is required by
the ordiance. The frequency of ground water monitorinE wfl.i be determined
by the City of Renton.
The second feature of the ordinance is the application of more etrin-
gent monitoring and construction standards for new facilities located with-
in an aquifer protection area. The City of Renton plans to require that
the best possible containment and monitoring technologies be used.
Conclusions
i
Several conclusions can be drawn frcm the last 4 years of formulating
and implementing the City of Renton aquifer protection program. The first,
and perhaps most important, conclusion is that an aquifer protection pro-
gram must be tailored to meet local conditions. Although the City of
Renton attempted to adopt elements of other aquifer Prote
ction programs
programs,
P P B s,
they discovered that only the general elements of these programs were ap-
plicable. Approaches for delineating the aquifer protection area and
ranking potential contamination sources had to be developed based on local
hydrogeologic conditions. Specific preventative measures and administra-
tive restrictions had to be developed to control the local mix of poten-
tial sources of contamination.
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a ss*y,
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The second conclusion is that considerable hydrogeologic information 21
ran be required to delineate an aquifer protection area. Generally, svf- µ;•r,aa�tt
ficient hydrogeologic inforaatlun Is not available to delineate aquifer
properties and boundaries, recharge areas, and rates and directions of = +q
ground water movement. As a result, A subsranrfal portion of tk: re- &
sources available to implement an aquifer protection program any need to
be devoted to hydrogeologic characterization and monitoring.
t
A final conclusion is that the identification and ranking of otential
sources of contamination are critical to the development of spec!.Ic pre- j•
vtata Live measures. Every aquifer protection area will have a unique six ?
of potential sources, and the relative risk posed by each source will de-
Pend upon a comber of fac�ors. Specifle preventative measures will be a
natural outcome of a sound ranking procedure.
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4
References y?�
CB2Y. BILL. 1984. Well PSeld Protection. Study, City of Renton Washington.
State of Washington Department of Water Resources. 1969. _Geolon and
Gtoun Avatar Re sou:ces of Southwestern King Lounty, Washington, Water
R .aortas 5u11er1n No. zh.
Biographical S.etches
Stuart M. Brown
Mr. Brown is a ground water hydrologist with C112M HILL In Bellevue,
Washington. Over the last 5 years he has directed a number of projects
related to the cleanup of contaminated ground water systems. His current
interests are in the area of aquifer protection. Prior to mining CH2M BILL,
Mr. Brown worked as a program manager for Anderson-Nichnis and Company in
Palo Alto, California, and Battelle, Pacific Northwest Laboratory in Rich-
land, Washington. Mr. Brown has a BSCE degree from Arizona State Univer-
sity and MEL degree from Stanford University.
Jeffery H. Randall
Dr. Randall is a ground water hydrolugist with CPiM HILL in Bellevue,
Washingr on. He has been responsible for numerous gre i water hydrology
and water quality projects fur municipal, agricultural, industrial, and
mining clients. Projects have included ground water resource evaluations,
production and dewatering well and well field design, geochemical and floc
modeling studies, ground water monitoring system design, hazardous waste
remedial actions, and environmental impact assessments. Dr. Randall has a
BS in geology from Indiana University and a MS and PhD in ground water
hydrology from University of Arizona.
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