HomeMy WebLinkAbout03333 - Technical Information Report - Erosion and Sedimentation Control Report�
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T A C O M A • S E A T T L E
Erosion and
Sedimentation Contro/
Report
� PREPARED FOR :
� JDA Group, LLC
95 South Tobin Street, Suite ZO1
• Renton, WA 98055-1324
! '
PROJECT.• I
�� Rainier Station — Phase 1
City of Renton, Washington
203615.10
r
PREPARED BY.'
Glenn C. Hume, P.E.
� Project Engineer
•
REVIEWED BY.•
J. Matthew Weber, P.E. �I
Principal 'I
A ril 2006 I
P
ua � o05�
Crvil Engineers • Structura!Engineers • Landscape Architects • Community Planners • Land Surveyors • Neighbors
�
Erosion and
Sedimentation Contro/
� Report
PREPARED FOR :
JDA Group, LLC
�,����� 95 South Tobin Street, Suite 201
���aF w ��, , Renton, WA 98055-1324
� ��
�
`' _,� :�Y; � PROJECT.'
ND 34858 �<�f�;
•��,�cl�� ;:� Rainier Station — Phase 1
��o� �� � ��1��, City of Renton, Washington
� � 203615.10
IXPIRES: 11/7/p�; ;
I hereby state that this Erosion and PREPARED BY.•
Sedimentation Control Report for Rainier
Station — Phase 1 has been prepared by Glenn C. Hume, P.E.
me or under my supervision and meets
the minimum standard of the City of Project Engineer
Renton and normal standards of
engineering practice. I understand that
the jurisdiction does not and will not
assume liability for the sufficiency, REVIEWED BY.�
suitability, or performance of drainage
facilities prepared by me. �. Matthew Weber, P.E.
Principal
April 2006
TABLE OF CONTENTS
SECTION PAGE
1.0 Proposed Project Description ....................................................................................1
2.0 Construction Sequence and Procedure.......................................................................1
3.0 Soil Stabilization and Sediment Trapping....................................................................l
4.0 Permanent Erosion Control and Site Restoration.........................................................3
5.0 Geotechnical Analysis and Report..............................................................................3
6.0 Inspection Sequence................................................................................................3
7.0 Control of Pollutants Other Than Sediments...............................................................6
8.0 Utilities ...................................................................................................................7
9.0 Conclusion ..............................................................................................................7
APPENDICES
AppendixA Exhibits
A-1..........Vicinity Map
A-2.......... Erosion Control Plan
A-3.......... Sediment Pond Calculations
Appendix B DOE Guidelines for Controlling Pollutants Other than Sediment on
Construction Sites
1.O PROPOSED PROJECT DESCRIPTION
This report accompanies the application for the Rainier Station — Phase 1 commercial
project. This project includes clearing and grubbing within the clearing limits, grading
the site to design elevations, constructing storm facilities, provide finish surfaces, utility
construction and providing temporary and permanent erosion control facilities.
The project site is located in the City of Renton in the southwest quarter of Section 7,
Township 23 North, Range 5 East, Willamette Meridian in the City of Renton, King
County, Washington. This site is located at 601 Rainier Avenue North (see Appendix A,
Exhibit A-1 for Vicinity Map).
The Rainier Station project is located on four parcels (9564800170, 9564800175,
9564800007, and 4202401210) with the proposed developed area totaling approximately
2.5Z acres. At full build out, the project proposes the construction of three commercial
buildings totaling approximately 52,100 square feet for potential use as retail, office, and
commercial. Also included is a two-level parking structure. Phase 1 of the project �
includes construction of the southern building and parking area along with a paved
access road from a northern driveway approach. The building pad areas for the future
buildings will be graded per design and stabilized during this phase of the project.
The project site is accessed from Rainier Avenue North. The project will include paved
surface parking, stormwater management systems, sewer, water, and other utilities
required for the new development.
The design for this project meets or exceeds the requirements of the 1990 King County
Surface Water Orainage Manual(KCSWDI►�, which establishes the methodology and
design criteria used for this project.
2.O CONSTRUCTION SEQUENCE AND PROCEDURE
The proposed development includes an erosion/sedimentation control plan designed to
prevent sediment-laden runoff from leaving the site during construction.
Erosion/sedimentation control will be achieved by a combination of structural measures,
cover measures, and construction practices that are tailored to fit the specific site.
Prior to the start of any grading activity upon the site, all erosion control measures,
including a stabilized construction entrance, filter fabric fence and catch basin inlet
protection shall be installed in accordance with this plan and the construction documents.
The best construction practices will be employed to properly clear and grade the site and
to schedule construction activities. The planned construction sequence is included in the
c�nstruction documents on Sheet C1.2.
3.0 SOIL STABILIZATION AND SEDIMENT TRAPPING
Structural control measures will be used to reduce erosion and retain sediment on the
construction site. The control measures are selected to fit specific site and seasonal
conditions.
1 �a � �
The temporary erosion and sediment control (TESC) plans include the following structural
measures (see Appendix A, Exhibit A-2):
1. Stabilized construction entrance to prevent transport of sediment onto Rainier
Avenue. The entrance shall be constructed using quarry spalls per the detail on the
plans.
2. Filter fabric fencing around portions of the perimeter of the site to prevent
sediment-laden stormwater from being transported offsite including fencing
between construction activities and the wetland/wetland buffer area on the
northwest portion of the site.
3. Catch basin inlet protection to prevent sedimentation of stormwater conveyance
systems.
4. Temporary interceptor swales to collect runoff during construction and conveying it
to the proposed sediment pond. -
5. Rock check dams are provided in the interceptor swales to reduce flow velocities
and remove sediment from the runoff. The check dams are spaced so that the tow ,
of the upstream check dam is at the same elevation as the top of the downstream
dam. The check dams shall be inspected for sediment accumulation after each
significant rainfall event. Sediment shall be removed before or when it reaches half i
of the original dam height. '',
6. Sediment pond to remove sediment from concentrated flows collected by the II
interceptor swale prior to discharge to the existing storm system. The sediment
pond is sized based on the impervious and disturbed area during proposed during
Phase 1 of the project. The required surface area is 1,450 square feet and a
dewatering orifice size of 1 3/8" (See Appendix A, Exhibit A-3 for sediment pond
calculations).
A stabilized construction entrance will be used to prevent the transport of sediment onto
the adjacent paved surfaces. If sediment is transported onto the road surface, the road
shall be cleaned each day by shoveling or sweeping prior to washing. Sediment removal
by washing alone will not be all�wed. If sediment is tracked from the site, the City may
require stabilization of internal roads and car parking areas to contain the sediment or
require the installation of a wheel wash basin.
Since source control is the most important form of erosion control, construction practices
must adhere to stringent cover requirements.
More specifically, during the period of May 1 through September 30, the Contractor will
not be allowed to leave soils unprotected for more than 15 days and immediate seeding
will be required for areas brought to finish grade with no further work planned for the
next 30 days. Areas to be paved may be armored with crushed rock subbase in place of
other stabilizing measures. The area of clearing will be limited to the amount that can be
stabilized by September 30 of that year.
� O� � �
During the period of October 1 through April 30, all disturbed soil areas will be covered
or stabilized within 5 days or 24 hours when a major storm event is predicted. Cover
measures may include mulching, netting, plastic sheeting, erosion control blankets, or !
free draining material. The extent of clearing shall be limited to the amount of land that '
can be covered or stabilized within 24 hours.
Soil stockpiles shall be stabilized by plastic covering or surrounded by filter fabric fence.
The stockpiles shall be a minimum of 50 feet from critical areas including wetland buffers
and drainage swales.
In order for the ESC facilities to function properly, they must be maintained and sediment
removed on a regular basis. Inspection and sediment removal shall be performed on all
ESC facilities as described in the inspection schedule located in Section 5 of this report.
4.O PERMANENT EROSION CONTROL AND SITE RESTORATION
Permanent site stabilization and erosion control will be accomplished through the I
following measures:
1. Gentle grading and slope transitions.
_ 2. Paving of driving and parking surfaces.
3. Landscaping (including hydroseeding).
4. Permanent storm facilities. I
5.O GEOTECHNICAL ANALYSIS AND REPORT I�
A geotechnical engineering report is provided by The Riley Group, Inc.
6.0 INSPECTION SEQUENCE
The following structural items will be used to control erosion and sedimentation
processes:
• Stabilized construction entrance
• Filter fabric fences
• Inlet Protection
• Sediment Pond
• Cover measures
I The Contractor's certified erosion control specialist and City of Renton officials shall
inspect the temporary erosion control facilities, construction entrance, and erosion
control barriers prior to commencement of construction. During construction, the
Contractor shall be responsible to inspecting and maintaining ESC facilities.
3 �� ' �
Erosion control facilities shall not be allowed to fall into disrepair. All ESC facilities shall
be inspected, at a minimum, according to the following schedule.
Dry Season: Once a week.
Wet Season: Daily, and after every storm event that produces runoff.
Needed repairs shall be made within 24 hours or immediately if possible. If necessary,
the engineer or City will instruct the Contractor to provide additional facilities as
warranted during field inspections.
The Contractor shall provide the name and contact information for the designated ESC
contact to the City of Renton prior to beginning construction.
Additionally, the following inspection/maintenance schedules shall be utilized to ensure
the ESC facilities are functioning as designed:
Construction Entrance:
• The construction entrance shall be inspected once a week during the dry season
and after every rainfall event during the wet season. If the entrance is not
preventing sediment from being tracked onto adjacent pavement, then alternate
measures to keep the pavement free of sediment shall be used. This may include
street sweeping, an increase in the dimension of the entrance, or the installation of
a wheel wash.
• Any quarry spalls that are loosened from the pad, which end up on the roadway
shall be removed immediately. Additional rock shall be added periodically to ,
maintain proper function of the pad. '
• If vehicles are entering or exiting the site at points other than the approved ,
entrance, temporary fencing shall be installed to control traffic. ,
Sediment Trapping Facility: II!
• The sediment pond shall be inspected once a week during the dry season and after I'i
every rainfall event during the wet season.
• Sediment shall be removed from the pond when it reaches 1-foot in depth.
• The staff gauge shall be inspected and replaced if damaged then repositioned after
dredging. Any damage to the pond slopes shall be repaired.
• Check pond slopes for raveling. Concentrated flows shall n�t be allowed to flow
down the pond slopes without providing rock armoring.
• Inspect outlet to ensure it is functioning properly and is not plugged.
4 �� � O
Temporary and Permanent Seedinc�
• Seeding may be used throughout the project on disturbed areas. During the dry
season, areas that have reached final grade, or are not being actively worked, shall
be seeding within five days. Seeded areas shall be supplied with adequate
moisture, but not watered to the extent that it causes runoff.
• During the wet season, all disturbed areas not being actively worked shall be
seeded or stabilized with mulch or plastic sheeting.
• During the wet season, no more area shall be exposed than can be controlled and
effectively stabilized by the end of each working day.
• To prevent seed from being washed away, confirm that all other approved
erosion/sedimentation control facilities have been installed and are functioning
' properly.
• Any seeded areas that fail to establish 80 percent cover (100 percent cover for
areas that receive sheet or concentrated flows) shall be reseeded. If reseeding is
ineffective, an alternate method shall be used.
• Seeded areas shall be inspected after every rainfall event during the wet season.
Any areas that experience erosion shall be reseeded and protected by mulch. If
the erosion problem is drainage related, the problem shall be fixed and the eroded
area reseeded and protected by mulch.
• Seeding shall not be used in areas subject to heavy vehicular traffic.
Mulchinq:
• Mulching shall be inspected once a week during the dry season and after every
rainfall event during the wet season.
• Mulch shall be inspected to verify that the proper thickness is being maintained if
applicable.
• Any areas that experience erosion shall be re-mulched and/or protected with a net
or blanket. If the erosion problem is drainage related, the problem shall be fixed
and the eroded area re-mulched.
Plastic Coverinq:
� • Plastic sheeting shall be inspected �nce a week during both the wet and dry
season.
• Torn sheets must be replaced and open seams repaired.
• If the plastic begins to deteriorate due to ultraviolet radiation, it must be
completely removed and replaced.
• When the plastic is no longer needed, it shall be completely removed.
5 �� � �
• If tires are used to weight down the piastic sheeting, they must be disposed of
properly.
Inlet Protection:
• Catch basin filter inserts shall be inspected frequently, especially after storm
events. If the filter becomes clogged, it should be cleaned or replaced.
• Inserts shall be replaced when tears are detected.
Silt Fence:
• Any damage shall be repaired immediately.
• If concentrated flows are evident uphill of the fence, they must be intercepted and
conveyed to a sediment pond.
• Check the uphill side of the fence for signs of the fence clogging and acting as a
barrier to flow and causing channelization of flows parallel to the fence. If this
occurs, replace the fence or remove the trapped sediment.
• Sediment deposits shall either be removed when the deposit reaches approximately
one-third the height of the silt fence, or a second silt fence shall be installed.
• If the filter fabric (geotextile) has deteriorated due to ultraviolet breakdown, it shall
be replaced.
Temporar�r Interceptor Swale:
• If erosion is noted on the swale side slopes, provide armoring using quarry spalls or �I
sod. '�
• If the soil infiltration rate is reduced by siltation causing prolonged ponding in the �
swale, scarify the bott�m to a depth of 12 inches minimum. I
If the erosion control facilities are damaged, or if the project engineer or the City of
Renton determines that existing controls are inadequate, the Contractor shall install
additional measures as required.
7.0 CONTROL OF POLLUTANTS OTHER THAN SEDIMENTS
The Contractor shall be responsible for controlling pollutants at the work site. Key
elements such as centralized areas for equipment and concrete truck washing and
temporary storage of debris and other stockpiled materials are the responsibility of the
Contractor.
The Contractor may elect to follow the detailed guidance on control of non-sediment
pollutants as outlined in the Stormwater Management Manual for the Puget Sound Basin,
Department of Ecology, February 1992, Section II-3 (included as Appendix B).
' 6 �� � O
8.0 UTILITIES
During trenching activities no more than 500 feet of open trench shall be allowed at any
time. Excavated material shall be placed on the uphill side of the trench except where
limited by safety or space requirements.
Trench dewatering shall discharge to a sediment-trapping facility.
9.0 CONCLUSION
Erosion control procedures as described in this report and illustrated on the design plans,
if properly implemented, should mitigate anticipated erosion effects from the
development of this project.
This analysis is based on data and records either supplied to or obtained by AHBL. These
documents are referenced within the text of the analysis. The analysis has been prepared using
procedures and practices within the standard accepted practices of the industry.
AHBL, Inc.
���, �
/(f ��a-C,
Glenn C. Hume, P.E.
Project Engineer
GCH/sca
April 2006
K:\Civi1�Yr_2003�203615\STORM\COMMERCIAL\TESq615-Erosion Control Report(CC)-wp.dx
203615ErosionControl Rpt(CC)060417.doc
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APPENDIX A
Exhibits
A-1 ..............Vicinity Map
A-2 ..............Erosion Control Plan
A-3 ..............Sediment Pond Calculations
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TACOMA SEATTLE 203615.�0 �.�
2215 North 30th Street.Suite 300,Tacoma,WA 98403 253 383.2422 TEL ER0810N CONTROL PLA�i
316 Occidental Avenue South,Suite 320,Sea�le.WA 98104 206,267 2425 TEL
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I
TESC Event Summary
---.__._ __ - ----,
�Event Peak Q(cfs)�Peak T(hrs)jHyd Vol(acft)�Area(ac)�:'Vtethod�Raintype,
�------ ----
' 2 yr 0.6929 �'8.00 _ _ 0_2491 � ( 2_0 SBUH TYPEIAj
Record Id: TESC
Design Method ! � SBUH �Rainfall type � TYPEIA ;
'Hyd Intv 10.00 min Peaking Factor 484.00 .
�—! �— Abstraction Coeff � 0.20 ;
---- ---- ---'
Pervious Area AMC 2) 1.54 ac �DCIA 0.95 ac
� �----------� �------ ,
Pervious CN 86.00 DC CN 98.00
--- ---
':Pervious TC 5.00 min �C TC 5.00 min
�---_-------- --___---------------------- ----------_ ___-----------
__----�-----.�_
Pervious CN Calc �'
I:
Description ,�— SubArea �—Sub cn '
Disturbed Area 1.54 ac 86.00 !
Pervious Composited CN(AMC 2) 86.00 I
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Pervious TC Calc i
Type Description Length , Slope j C�' l�iisc � TT �
;
Fixed fixed 5.00 min ;
Pervious TC 5.00 min
--- _ ;
: --- ----- -----------------_____ : _—._.�____�
Directly Connected CN Calc i i
-��
Description SubArea I Sub cn
PAVEMENT/SDWK '; 0.67 ac 98.00
Building ; 0.28 ac 98.00 '
DC Composited CN(AMC 2) �-98.00 �
Directl�Connected TC Calc — I
Type Description � Le�ngth ! Slope ; Coeff Misc � I
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fFixe�None Entered � 5.00 min i ;
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Sediment Pond Calculations �
QZ=0.6929 cfs
SA=2(0.6929*0.00096)=1,443 square feet
Ao=(1443(2*2)o s]/[0.6(3600)(24)(32.2)°s]=0.0102
D= 13.54(0.0102)°5= 1.367"–1 3/S"
A-3
APPENDIX B
Exhibits
DOE Guidelines for Controlling Pollutants
Other than Sediment on Construction Sites
ST�RHWATER HAI�AGEtSENT lSAIZ'UAL FOR TIiE PnGET 50UND BASIN
_ C8�PTE1t II-3
t,'KJIDL►LZ1i8S l�OR �Z71fi PO�.I+UT711�1TS QTHER T.F!]1A SE212IiF.1V'T �
ON {�IfSTRUCTI�N SIT�S '
. I2-3.1 I11Z7tODUC`tlO�i I��'
Pot�ntial pollutants othax than e�dimsnt auociated �rith conatructian activity, '�
includ� nwn�r�►us haxazdosis wa�rtae aa well as oth�r �olid azsd liquid Naster�.
Hazardau■ wa.sL�es includ: paaticides {in�c�icid�ts, fungicidea, herbicides,
rcd�aticides etc.}, petroch�aicals {oils, gs�aline, asphalt dagzoaser etc. ) anc3
oth�r eon�truction chamicale sucb a� concrete products, aealar, pai.nta. az�d wxah
' snt�r aseociated �,rith thes� products. Othar wastes include pap�r, wood, garb:ge,
sanitsry �+astes, and fertitizer.
Psacticss a�st be used that prevent these poteat3al pollutants� frcm isaviag the
coastructioa site. Good eroaian and oedim�snt control, cauplad with atosmwater
a�aaag+rne��, wiil dater the-movanent of lwrqe a�wunts of ssdi,aeent af�- tba gtte: (Zt
must b�e rscag�nizetl, hawever, that pollutants csrri.ed #,n solution in runof# watsr, or
fix�d with r�adia�ent cryetal2ias structuros {e.g. , cryatallfae elays�, wi11 b�
`" asrri�d thrauqh the erosion and sedim�nt control defen�es.J Pollutants such aa
oila, wsaces, and water-ineoluble peaticidea, for�o �urface films on water and on
solid particlee, �and al�o, oil filcas serve ss a madium for concentrating arater--
so3ub2a in��cticid�a. other than by un+s of very costly water-treatawnt facilities,
or long runoff Water detentian perioda, thase pollutants becane nearly imposs�ible to
coatroi ars�.wr preserit in the rvnoff.
,. _ ?h� most sconaa�ical and eff�ctive controla for gallutants other than sediment
- qess�rated on aon�truction aites, urs th� e�circisr� of qood `housskseping" praotfaa�s,
and an awaren:a• by can�ttruction rrorkera, plas�s�szs, enginesrs, aad developers a! ths
nad and ptirpo�o of complianee W.ith fed�era2, stat�, and local r�qulationa. !'or
�tycample, awst pesticid�s ca►n kfil forms ef 3ife othar tbaa th�ir pe�st targets.
- - C�rtain insecticidee csn persist tar a�onths or y�ara in �oil u�d wat�r, and esany
t,oaic cheoicals aan ba gassed a�.onq plant and aaimal food chaisss, Sfxailarly, hiqh
l�viels af xutrients (principally phasphorus and nitroqea} from Lartilizers uwrd to
rsv�qatate sxpossd aubsoila in qradsd araaa may �ntQr wat4rwaye and pands, and
.-. itscr�as� th� qrowk.h af alqae at ths aurfac� ta such zn axtent that 2iqht psnetration
iA tt» aat�r column is dscreas�d. fihe snd r�sult is ov�r-er�xiclvneat (ar
�tttroghicatian). In contined �rater bodies, cver-enri�tn�ent can lead to ccxnpl�ta
d�axyqena�ian of the aater and conasquent death o! ti�h and othar organisms.
iiay� maot De fcund to protart pondc, rnatla�nds, lalcaa, strsa�ors, and_coas�tal and
estuarino xater bodi�e fraa damuge by �ediment and other pol].utasites qer,erated during
constructiop activities.
T}�e variety of pollutanta and the sevority of L?►o danage they cause depend upon a
n�ar af factors. 2h� most aiqnificant of thoe� inaluds:
-----------• -------�- -�-------- ----
3. The proximity, quantity. ar�d quality of the receivinq watezs (i.e., the
amount and purity of the water xec�iving th� contaminatad runo�f).
" It is z�aaon=ble to axpact, for esample, that potential pollnLion resalting frcx�a
fertilizers ueed during revegetation would De saore sever� on a hiqhwwy or hausing
II-3- 1+`ESRLJI►RY, 1992
_ STORMWl1TER MANAC&?SE2QT K1�HUAL Ft1R THE POGHT SOU1+iD $ASIN
- dsv�rlopmont �han for a shoppinq c�nter development. Thia ie becauoQ hiqitwaye and
hon�inq developmenta uaually have far grenter landecapinq requiresnenta than shoppinq
c�nt�rs Wbich ara roompos�d moatly of rooftops and �uvaasat.
..,. TM physfcal tharactaristica o! the coastruction site hav� a sasjar bsarinq on the
pot�ntial •�v�rity oi pollution froes construction activities. 7�s ia tAe casa of
�adi.�ent, ths vast majority oi all pollutants are carzied into the r�c�ivinq waters
via svaoff. The aawunt of runoff cominq from a construction aitt is d+�p�sad�nt upan
hydro�oqia faetor�. Ths�e include Lhe amoant, intaasity, and tr�qu�ncy of rainfall;
tb� inliltratioa rat� of the soi2= surface rouqhn�aaf ar�d th� lenqth and at�epnese
ot th� ground s2opo. Larqe areas d�nudod or �tripp�d of ro�egetation, long alopea,
•t�wp slop�s, tiqht ioila, and hiqh inteneity ra.iniall are all factors conducive to
h�a�y ruaoff�
�h�r physicai factor influenainq the aeverity of pollution is thr proximity ot
th� pollutat�t, or potential poliutant, to tha r�ceiving water. For sxample,
_ ftrtilisera applied to a streambank us �aor� apt to caua• water pollution than
t�rtilisar� applied to a ■lape w��l upland ot the Wateraay.
Th� lollowinq iaformation d�als rrith the nature and control of varioua construction-
r�lated pol2�t�ntr, othsr than ssdinwnt.
IIl3.1 � C1.10 TESTICZDE COIITAOL
�-Illtbouqh th� Word "pesticide' has caa� to a�an only those chemicals which attack
ins�ct populaticn�, hers th� r+ord is used to includ� herbicid�a and radeaticid�s ae
�11 as chomicalR cammc�nly known as peaticid�s. Iasecticid+ea, rod�niicidas,- ar�d
hfrbicide� have historiaally bs�n used on coaatruction •ite• �o incr�ase t�ealth and
� rat�ty, naitstain a pl�tsant environiment, and z�duce aaint�nsnc� and lir� tsassrds.
Olt.�n, rod�nts ar� attract�d to conwlruction aites and rodenticidee ue u�+ed.
�aticidts ■hall only D� us�d ia conjnnction vith Inteqrated Pest Msnaqem�ent (IPx}.
ZP�i utilis�� a n�d• a�sesament which det�rmin!• which method to �f! and the
nre�ssity of controlling a pest population. �sticidls ■hould be the tool of last
r�sort> >aethods which are ths 1�asL di�ruptf�re kn-tAe environm�st and to hun�sr
�alts should bQ u�sd first (I). IPM a� a 8MP is turther discussod in Volume IV,
--Cbapt�r IV-4, BKF 81.90.
2! p�sticidss must br urr�d, -clearanc� tor uss of ariy of thf�� ct�caicals is often
r�quir�d by rtstrictiv� frdaral e►nd state rsgulations. All p�sticid�s should be
- stor�d and applisd in accordance xith regu2ttiona of the Stat� Department of
l►qri+Culture, M71C 16-228-185. EPA has producsd a pamph��t "$t��ptAd�d� Cancsled and
R�strict�d Pesticid�a• (Jaa. 1985), tirhich includ�s informatlon o�n-mA[ny pesticidas.
Pia it is eore than five yoars old, it is wisw to chsck v►ith EPA'e Reqion 10 Pesti-
cid�• Branch, Saattl�a, if any que�tions r�gardinq th� us� of pestici�es arise. ]�,n
awar���s ot the n�ed ta adhQre to recorrmanded dasaqes, typ� of application
�quipm�at, tims of appiicatioa, cleaning of applicatiar� �quip�ent, aad �raf• diiposal
of th�se ch�nicals, will qo far in limiiinq th� pollution of waterways. l�ppiication
rat�s shonld contorm to rsqist�s^�d label diroction. Maay of tlisse caapou�ds ax'
aonaid�c�ed 'Dang�roua tis�tos' and must be dispo�od of prop�rly. Disposal o! excess
p�rticid�• aad p�sticid�-reYated wast�s should con�ozm to r�gist�rred lab�l direc-
tion• !or the di�possl and storaqe at pssticidt■ and ps�ticide containers set forth
in applicabl• fed�ral, �tat• and locwl rsgulationa. tie�r�era2 dispo�al procRdurss
ar�:
• Di�po�e of throuqh a lfcen�ed W:�te marugsment tirm or treateotnt,
storaqe and dispo�al caapany {TSD).
. Usr ng, or g3.w away to garden cas�ter, 2aadscapo service, etc.
II- -2 PHBROARY. 1 2
STORt�3WATER MANl+GEMEKT MANUAL FOR THE PUGET SOUNU BASIN
- • Triple rince containers beforo disposal, reuas rinae watere ao product.
"ltasardoua Waste Pestiaides - Detercnining if Your Pesticide ia a Hazs�rdovs Waste,"
booklet #89-14 grovides guidau�ce and io available from Ecology's PuDlicatione
Offfca. Fo= more information-call Ha:ards Line (587-3242) ar Hazardous--Substance
Iaformation Hotline (1-80Q-533-7585�.
P�sticide etorage areas on the conetrnction site �hould be protected froro the
-- el�ments, fro�o vandals, and frao t!� curioua. Warninq signala ehould be placed in
��as recantly aprayed or troattd with the most danq�rrous pasticides. Pereone
involv�d in thQ mixinq arid application flf thass chemicals, to be in compliance with
th� law, must wQar �uitabl• protsctive clothing.
Qther practices include:
• Set aside a locked, weather-rQsiatant atorage arQa.
• Lids should bs tiqhtly cloeed.
• Keap i.n a eaol� dry placo. Many peaticidea rapidly lose their
_ ef:�ectivenes� if stcred in areas expoaed to heat.
• Zn case of a leak, put original container into a Iarger container and
la.bel it properly.
• Chock cantaia�rs per�odically far leaka or deteziaratian.
• xeep a list of proc3ucts in •toraqe.
� . Use plastic shMrting to line the area.
• The applicatoz muat follow the notification requirements oi tht iiDSA.
NQiqhbars on properties adjacent to the one being epraysd ehould aleo be
notified prior to aprsying, •
• All storaqe ah�ds, dc�mpaterr oY othQr �taraqo frcili�ita ehould be
reqularly manitored for Isaks and repaired as n�ctssary. Re7nind workers
during raubcontractor or saf�ty meetings about proper storsqe and
handlinq of mat�ria2�.
SZ-3.3 B�tP C1.20 B11MD�.Il10 QP PETlb03.�Wt PAODVCT8
Prtrol�um groducts are widely used durinq conatructian sctivities._ �hey ue eised aa
faels as�d lubricaate for vshicular oporatiana, power tools, and qenrrai �quipmant
oaint�nanco. These pollutant■ include oi2s, fuels such as qaaolin�, dies�l oil,
lc�ras�ne, lubricating oils, and qreaeQ. 1►sphalt pavinq can be a pollutant source aa
it eontinues to release various oils tor a cona.iderable lsaqth of tia►�. I3oat of
th�se pollutanta adhere to soil particl�a and oth�r surfaces �asily.
O� of the best ctiod¢e of control is to retain sediments containinq o�l an the
coastructiot� sita._ Soil erosion and �tdim�nt control practicea can sffective3y
accomplish thia. Zmprovad m�intenanco and aafe storage facilitios will reduce their
chanc�s of contaminating coastructioa eitea. One of tha gra�t.st concerns
confronting uses of th�se petrolewn producta ie the msthod fer waste disposal. Oil
and oily xastes auch as crankcaae oil, cans, raqs, and paper dropp�d in oils and
lubricants, can be bast dispossd of in pzoper rQceptacl�� or recycled (call 1-800-
RtCYCI.�j. wa�t� oil for recyclinq should not b� �nix�d with degreasers, solvsnts,
�atifr�eso, or br�ko fluid. Th� dumpinq of thess waatas in sswnrs and ath�r
d�c�sinsqe channels ia illeqal and could reBult in fine�r ar job ehutdown. A turther
ZI- -3 F89RiTl�RY, 99
STOR?!Wl1TaR )511117►G&KENT 2t11NUAL YOR TF� PUGET SOtfND 811.9=It
sourc• of th�ese pollutanta ia leaky vehiclt�. Proper maintenancs of equipsnent and
installation of proper atream crossinqs aill lurther reduce pollution oi water by
tb�s� sourcee. Str*aai crossings ehould be minimized through prop�r planning of
aco��a toade.
Guid�lin�s for �toring potroleum producta ar� a� follo+,�s:
• Store products in w+ather-resi�tant eh�ds whers po��ibl�.
• Creat• rhelter around area with cov�r and Wir►d protection.
• Line th• storaqe uoa with doubla laysr of plastic ehaeting
or similsr a►atQrial.
• Create iaipervioue berm around the parimeter.
• Capacity of bermed ar�a ehould b� 110 p�rc4nt of larqeat ccntainer.
• l�►I1 products ahould be clearly labeled.
• 1Csep t:nks off th� qround.
• x�ep lide •ecurely fasteasd.
• Contact local fire marshall for mor� informatfon.
• Poet infozmation far procodur�a in case of apills. Persons trained in
handling spillo should b� on-site or on call st all times.
• Materials for cleaniag up spill� ahould b� kept on-sitr anc�
-- easily availabl�. Spills •hould b� cl�snad up iemssiiate2v and th�
aontaminated materia� properly dispos�d ot.
�-•'• Sp�eity a staqing aroa !or all whicle maint�nance activiti�a.
� Thia area should b� 2ocated away from all drainago coursea.
• J►11 storwq� ahed�, dumpstezs or othar •torege facilitias should b�
rogularly moaitor�d for l�wks and repaire� ss nsc��sary. Remind workers
durinq subcontzactor or saf�ty mNtinqs about proper storag� and
handlinq o! matorial�.
YI-3.� lYf! Cl.30 11Qi7tImIT 11t'tLZGSICi� 1111D CGINTItiOR.
InorqaAic autrisnt pollutfon i� wost ott�en caused by tertiliz�rs used in
z:v�gatatirf4 qsad�d ar+�as. Tho uss of prog�r-soil-stibilization �a�urso, a�di,aeat
aontrol, and storsawater dot�ntion •tructur�s can bs eff�ctiw nw�ns ot k�spi�g tb�ss
aatsriair out of wat�naaya. Only seall aeoounts of inorganic nv�ri�nts arf
bs�ticial te the pzoductivity of wat�z�+ays, while �xcess amount• r�sult in ov�r-
�nrictment (eutrophication).
!lutsier�t pollution cus be a�inimisad Ay .�rorkinq fartilizers :nd liminq mat�riale into
th� �oil ta d�pths of 4 to 5 inchss, and by prop�r timinq of the �pp2iCation.
Ay�co-sMdinq op�ratioa�, in which s�d, fertilizers and limo ara appli�d to th�
qrouad surf�c� in a on�-sttp operstion, uv oor� condueivt to nutri�nt pollution
than ase conv�ational sNdbcd-pr�par:tioa op�rations, ti+!►�zs th� ferti�iz�r• aad lims
ar� tilled into the �oil. In th� ca�s of surf�c• dr�s�inqa, co»trol can be achi�vod
by applyinq the r�quir�d quantfty of fartilis�r in more thtn ono op�ration. �'or
�xa�pl�, an ar�a requiriaq an applicatioa of 500 lb�. per acr� of �ertiliser aould
b� dr��s�d with abaut 125 lba. por acr� at four a�parat• tim�s ov,�r tho qrowinq
•�ason.
ZI- - FSBRUl1RY, 2
' STORtiWATSR lS�KAGEWrNT MANUAL FOR THE PUGET SOUND S�SZN
Oa� of fertilizere containing little or no phaephorus may be reqvired by local
sutlfoiitiae if the development is near seneitive water bodiea. 2n any evQnt qreat
car� should be takan to uae only the minimum esasount of phoaphorus nseded, ae
dstera�ined by soil testa, or advice from the looal Coneervation District or Soil
Cons�swation Service.
8�ar aon�itive surfsca Wat�rs, the addition of lime can atfact thQ pH (or acidityy
of runoff and recefving watera. Importation o! topsoil is better than heavily
_. liming and lertilizing exposad eub4oil.
ZI-3.'S Dl� C1.<0 SOS.ID Y►�STS E7WDLZliO 711fD DZStOfil►L
A Solid weste is one of the major pollutante caused by conatruction. Solid Kaete is
g�n�rat�d lrom trees and ahrubs renwv�d durinq land clearinq #or con�truction of
str�et� and parking faciliti�s, and during thQ instal2atioa of strvctures. Other
_ waot�� inc3ude wood and-gaper tran pack�[yt� and bai2dinq aisteriale, scrap metala,
•aaitary wa�tee, rubbez, plastic and glaas piecea, masonry products, and others.
�ood conLainers such aa beveraq� cans, cotfee cups, lunch-wrappinq pap�r and
pla�tic, ciqarette packagee, leftover food, and aluminum foil contribute a
•ub�tantial amonnt of aolid wa�te to the construction sita.
Tbe eajor control mechanism for these pollutants is to provide adequate diaposai
facilities. Collected �olid waste should bt remov�d and disposed of at sutt�orized
dispo�al a.rea�. Frequent qarbaqe rQmoval h�lps maintain ronstruction sita■ in a
cl�an and sttractiv� manner. Warte contafners should be lab�lled and located in a
cowrwcl ar�a. Lids ehould be kept closed st all time�. llny uo�ful matsrials ahould
b� �a2vaq�d and recycled. for instaace, masonry waetQ can be usad for fi2liny
borrow pits; tre�s and brush from land-cleaziaq op�ratfons can be coaverted into
-woodcbipa throuqh m�chanical chippers and tMn u�ad a� mulch in qraded are:s.
Batlitary taciliti�s mu�t b� conv�ni�at and ti+ell maiatain�d ta avoid indiscriminate
soilinq of ad�ac�nL araas. Selective (rsther than whole�ale} removal af trses is
h�lpinl in conasrvation of ooil and reduction of wood wast�A. Indiserisainate
r�oval of tresa and other b�neficial v�geLation ahould be avoided.
Soil •rosion and asdim�nt coatrol •tructur�s captura muoh of ths solid waate fraa
coa�trvction •it�s. Constant removal of litter fran the,e structurea will reduce
t2u amount of solid wast� d�spoilinq ths land�cape. The extension of lacal and '
stat� anti-litt�r ordinances to cov�r construction •its• ie also a viable control
archania�. �dherenoe to th�sa� requlaticas by con�truction p�raoanel reduces
uant��ssary littering throuqh earel�s�ness and n�qligenea.
II�3.i 1WP Cl.'�0 V� O! CaEli2GI.� D[lftIlKi COIiST�UCTi01f
� �any types of chemicale may be used durinq construction acttvitieo. Thase chemicai
pollutants include paints, acids ior c2eaning masonry surface�, cleaninq solvents,
upt�al� producta, aoiL additivas usa�fnz atab11 i L'ti.cn and othwr. purposea,
eonerwte-curing coaspound�, and many other�. Thsse a►aterials are carrf�d by sadiment
aad runot� lrom con�truction ritss.
!1 luqe pezcentaqa of these pollutants can be effectively controlled throuqh
iwpl�ntation of eourc� control soil erasion and sediuo�ntation coatrol practices.
Hy usinq anly th� recommendad amounts of th�ae matarials and applyiag them in a
prop�r mann�r, pollution can be further reduced. lis in the caee of other
polluiaata, good hnua�epir�q i� the most imgertant moanB of coatralling_ polLution.
The correct aethod of di�pasal of waate■ variQs aith thQ matarial. Ftash-up vat�ra
irpa� vater-based paint� may go into a sanit�ry s�,rer, but waste• from Qil-based
. paint�, cleaninq solvent�, thinn�rs, and minerel epirits must ba dispoaed of through
II- - PEBAESARY,
- STOR}+iWATER MANAGE2�NT ZSANUl�1L FOR THE PUGET SOUND BASIN
a lic�nsed �rastR managaawnt firm or TSD. Di�posal of concrete products, additivea,
and curiaq canpounds dapends on the product. Inforeaaticn is available from th� 'i
local h�alLh departa►ent ar the Hazardoue Sub�tance Information Hot2ine (1-BOQ-633-
� 7585).
II-3.7 OT�A POR.LUTIINTS
- OthNc pellutants includ� concret�e wash water froa► concr�ete mix�rs, acid and alkalina
�olution� #rom exposed soil or zock unita hiqh in acid, and alkaline-forming natural
•l�nts.
-- Th� control of thes� pollutante involves_ gnnd s.ite. planairsg ar►d pr4-ac�struction
q�oloqical survwy�. N�utralization o! khere pollutants often provids� t he beat
tr�atantat. sealinq of fracturea in the bedrock with grout and bentanite will reduce
th� a�unt of acid cr alkaline seepage from excavatfons. Adequate treatment and
__ di�poaal of concrete further X�duc�• pollution.
2Z-9.a �E�7►L oIIIDEi.ZIIEs '
Grs�ral guid�lines for manaqinq or minimiziriq any of thQ �bove hazardou: waat�s ar:
as tollowsi
jI-3.{}�.1 �iP C1.60 Haaavina Hazardoua Products
• 9uy and usQ on2y what is neaded. Laftov�ro need to be stored, ro-upsd,
givea a�ray, recycled or disposed of safely.
• Rsad �abels and follorr dirsctions on the Iabel. Hazardous producta may
be labeled:
Danqer Poi.sonous Volatile
caobustfble Caustic Explo�ive
warning Corrosive Plan+a►able
Caution
• Try to keep products in origiaal contafpRzs and alxaya k�p- thst�.well-
lab�led. If ths product mu�t be transferred to small�r containers, uss
tha propsr sise funnel and avoid spills. I,abel all containers.
s Lab�ls can fall off with w�atherinq. To prevant, cover with transparent
- tapa. To rslabel, use a metsl tag attached to the coat�iner or use a
atencil and spray p�int.
• Do nat mix ch�mical �ub�tanc�s. unlsu r�coars+eadad by- t� mwssutacturQr.
• CJse in �rsll-ventilat�d araas. Proteci ■kin, �yes, nase, and nwuth rrh�a
ruc,essary by wearing gloves, resgirator, or otber pzotective clothing.
• lCasg corrouive liquids away froaa flammable li+quids.
• Look Sor nontoxit or less toxic options {check with th� state Dopart.ment
_. of Ecoloqyc O,�fic� of ioaste Re4uation at 1-60{?-822-9933) .
, � Use all o! th� product befor� diaposinq of the container.
/
• Th+sre are privats firma that epeoialize in the cl�aeup of spills.
II- - FEBRV�RY, 2
5:'ORMWATER l�A3iAGEMENT HANOAL FOR THE PUGET SOUND BASIN
� IZ-3.8.2 BKP C1,�0 Eg�inment FTa�hing
Thianere or sa2vents should �4t be diachargeci into the sanitary or gtorm �ewer
syateaa when clQaning larqe machiae parts �rhez4 c�isch�rqe cf aatQr ia requirad. Use
alt�rnativ¢ �thads- tor cla�aning 2argar equipa►ent p�� �auch ae hiqh prsseure, hiqh
t+rstperatur� wat�r wasbes, or stsam Gleaninq.
8quipmant waebing detargents can be used and xash water diacharqed into t�e Saaitary
�- sytrteea if grit is resooved from the solution �ir#t. Th� water dischargsd into the
s�wr �ruet aot axcsed the discharqe limits set by the Sewer I�uthority.
S�nal2 parts can be cleanad with deqrsasinq aolvents which are reused sft�r f ilterinQ
- ar recyc2ect: Tfiss� solvents shwld � be discharged fnto any sawer. Further
informstion ie availablo fra�a the Departmant of Ec4logy.
II-3.8.3 BlSP C2 8b S�il� Contro�lannin�,�}¢,_,�l�nu�
Coastructioa aite suparvfsors shall adopt a spill control plan and identi#y pereans
r�aponsible �or i�glementing the plan if e �pill af a dengeraus or haz�.rdous �aaete
stwuld oacur. luzy spi�l that occura, regard�ees of the size and/or type of sgill,
_ at►onld br rsported ta the foliowi�sq aqenaiee:
• If the epill of a hazardoua suhstance ccu�d r�ach eurface watsrs, the
fallowing aqe�ncies mnst b� notifiad (there are fines far failing to
_ notify)s
Hational Response Centex 1-800-424-$802 (24-hour)
� • Lacally, notify tha zegional D2partmwtnt flf 8coloqy ottices:
Northwest Region - Recbewad 649-7000 {24�hour}
SautAwest Region - Olympia 753-2353 (24-haur)
• ltithin t1u C�ty cf Bellewe
&torm C� Surfacs Wat�r Utility 455-784G {24-howcl.
• Far egiYls withi� salt water
II.S. Coaat [3uard 286-5440
�s� ar� �fae: for #ailing to notffi the appropriaL� autborit? �rhsa a spi21 occars.
Sume of the importaat comp�nenta of a apill contro2 plan are:
• Sstablish wha to notify in th4 event o� a spill, partictslarly if it i�
hazardous.
- • Yxovide specific clean-up instructiona for diffezgnt producta handled a�n
site.
• l�esiqn a peraon to be in charge of clean-up aseistance.
• Prepare spill cantainment and clean-up lfsts that are easy to find and
uee.
_._ • Poat a awamary of the clean-up glen at appropriate locationa.
• If a spi11 occurs, dematailize it as �uickly a� poaeible.
ZI- -7 FSBR�hRY, 1
STORMWATBR KAN7bGEM8NT Kn�,ttr�POR.TH�-PLJGAT SOUND-SASZM
_. • If there ia a Changa that the epill could enter a skorm draia or aswer,
plug the inlet and turn off or divert any incanirg water.
• Cover the �piil with absorbent material such as kitty littQr cr sawdust.
Da_ nat ua�-straw, Dispose- of tht u� abgarb�nt per- Ecolo�qg-or-
wanntacturor'o instructiant. I! tb� spi12 is flasa�abl�, dispose of aa
dir�etad by the local f ire marshal.
__ • Xeep ths area well vontil:t�sd.
ZI-3.B.4 BHP C1.9Q Tr:atua�nt �nd Diet�sa�Qf CoaCs,minat�c� Soils
Contaiairut�d qround vnt�r. or sai.l ma� bo enaaunt�rs� during �arthwork actzv�tie� or
- by tht spill or lezk oi a hasardoua product. Tt� conts�ainant may be knoan or
unknown. Samplinq and labozatory tests may be r�quired to daterani�sa wbethrr a
latsdtill can accept th• contaa►inated aoi2, In some caae• ik is possible to r�duce
th� hasaxdaus potential 01 the soil by aerntinq it, for example. I.ocal health
d�partments can supply Lhe necessary procedures. Privste firm� can alsa be
c�asult�d far di�posal. i
Th� Mod�l Toxica Control 1�ct, Ch. ?Q.105- RCSi, requires that Eaalaqy`s ?oxic-C2eanup
� proqrm be notifi4d if contaminated soil or qround a:ter is encountered durinq a
� psoj•et.
ZZ_3.8.5 HHP C 2.{10 Concr�t� TruakalSvray W�sh na of Exvosed AgQre�atg Driygwavs
- l��ialkwuva
Tbt washout from a concrats truck should bs dispo�Qd of into:
• A desiqt►at�d :r.a which ++ill latez b� backfilledi a elurry pit.
• 7us a.rsa Wh�re the concret� wash can hard:n, b� broken vp, and then put
in the dumpstar,
• A locatioa which is nat subj�ct to surface ►�ater runoft, and �acre than
50 fa�t away iro� a stoz� drain� opon ditCb, or receivinq water.
__ N�v�r Dump Znto:
• 8atlitary sawr
• Storm drafn
. Sail or pa��ont which csrri�s stvr�owater runo!!.
Nhen ipray aa�hing driv�ways or valkways to e�cpose the aqgr�qate, all �ruh water
shculd ba divert�d or �pray�d to the sidss, »ot dawn tbe driv�aay. If �+�t�r muat
tun do+vn tb� drivaway to�rards th� street ar sidewalk, it •hould be ctiverted at the
bottos to : sua�p or Nedin�ent trap.
� Ij,r,�„i8.6 B?IP c2J10 vae oj`� sandbl�}�t a G�,�
Ii uNd to cleasi old buildinqa whara lead.,_-cacb►i�im,- ar chrome-ba�r+ad psints �srt
appli�d, the saadblastinq grit4 are a h�ssrdoua waste. Th�y cannot b� wash�d into
sny �a�ear systba. Contsct a lieenaed waate manag�cnent firm or TSA facility.
, IZ-3.8.7 BMP C2.20 DispQsa�, of �1�,lp��ros and PCBs
0�� and dispo�wl of tts��t potential pallutants are requlated by both state and
lad�ral ay�ncifs. For further informatioa, contact: -
ZI- - PEBR ARY. 1 9
STORl�ATER MAi�11G�?fENT 2iSNVAL F4R THE- PUGET SQtIND-.BASZH
!'or I�sha�toa s
Puget Sound Air Pollution Control Aqancy: 295-7330
U.S. EPAs 442-7369
Tor Mut�s Containinq PCBs:
Wa�hinqton Department of Bcology, Sazardous Waste S�ctioa: 449-bb87
t7.S. tPl1: 44Z-'7369
II-3.f xETEltsliGaB
;l) fAaahinqton Toxic� Coalition, letter dated January 31, 1990.
(2} It�inslt, Loren, s.onstnkctio� Site,,,$,r�,piqn wnd Ss�isnen,,t Contzol Znevector
2r�,�iav xz�ual, Center for Urban Water Reaourc:s xanage�ment, university of
t�iaahinqton, Octaber, 1491.
1
IZ- -9 P'EBRUARY, 1