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HomeMy WebLinkAboutCAG-92-120(1) IMPLEMENTATION STRATEGY Renton/Lake Washington Pollution Abatement Program Prepared for: City of Renton Surface Water Utility 4,11 r �4 June 1994 HERRER ENVIRONMENT CONSULTAN 100%PAcyded P; APPENDIX. A Figixres- APPENDIX A Figures FIGURES 1 Study area for the Lake Washington pollution abatement project 2 Sampling stations and business locations within the North Renton drainage basin 3 Sampling stations and business locations within the West Hill drainage basin 4 Storm drains and facilities at Renton Municipal Airport 5 Land use in the North Renton drainage basin 6 Land use in the West Hill drainage basin 7 Bathymetry of the littoral zone in Lake Washington near Renton 8 Contour map showing areal distribution of milfoil and other aquatic plants in Lake Washington at the city of Renton 9 Sewer service areas in the West Hill drainage basin 10 Copper concentrations in storm and base flow samples compared with water quality standards 11 Lead concentrations in storm and base flow samples compared with water quality standards 12 Zinc concentrations in storm and base flow samples compared with water quality standards 13 Boeing NPDES stormwater sampling station locations 14 Stormwater sampling stations at the Paccar site 15 Aquifer protection area zones in the North Renton drainage basin 405 r Lake Washington —J tiSunset 6i S ' ` goo N�patk p, i J 167 < / 000 / 900 N North Renton Basin I I r Renton I J / Municipal I Airport D 70 ` Z I I NE 4th St. —��r�—1 9P� West Hill Basin 1O q� M NW 2nd St. ao � LEGEND wo ayS � S 2nd Street �°� 900 y T Storm drain outiall S 3rd Street y Basin boundary cmmi Sunset 405 169 'u^,�` 0 2400 HERRERA \, APPROXIMATE SCALE IN FEET ENVIRONMENTAL CONSULTANTS Figure 1. 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G 57 0 y n CD= �• m O 0 � g � '.mt y ��n tJ � Lake a [� Washington - HIE Eniy@I \ 1 1 I �F I + I S_ �I Elf I L t► 1 , a�- � �1 ULL� 1 I t1� i -24 i m 11' 1 1 E=1 ® i 1 HE I Black I }`:9I�t �` River (I LEGEND Culvert 1 I 1 '} IIVE '`•� , I. \ S 1 id p it ; J S ,`-2.—�,--- ; ta�lne ® Business location See Appendix D I / —� , f�t r—T— y 1 �� I i S 124tn 1■ � Renton \ \�— _ Chi e s r-1-t � Municipal � ■ Illicit connection sampling location ; O 1 Airport o Subbasin monitoring station i G W1 Subbasin designation 11•E6-3�y ® � Outfall monitoring station --� W5 : --------- Basin boundary ,/ S 1281h Ravine 1 1 --------- Subbasin boundary � � 1 1 ' 1 1 City Limits W1 -- ♦ d -" ... "'"' _ I _ ' 1 1 APPROXIMATE SCALE IN FEET 400 200 0 400 800 i } 1 AIRPOR WAY ®' O 15,H4-5 � -• "- �� 16. 4-11 ■15,G4-11 1 __ TO ST s `" HERRERA ENVIRONMENTAL CONSULTANTS ANTS KING lR. VAT Figure 3. Sampling stations and business locations within the West Hill drainage basin A-3 LakeWashington 1 1 m 1 - v LEGEND --------- Storm drain i ® Fueling area/storage tank _ Aircaft maintenance -- - ® Aircraft hanger 1 U � Aircraft painting - o - Aircraft storage(Tie down) a N -- - :' � o aoo soo APPROXIMATE SCALE N FEET CC CL C �X p ..q Control ❑ - r- t� --Y- Tower 1 1 f 1 1 1 . 1 / 1 -r t---* 1 1 1 _ } 1 / l 1 1 ¢ 1 C _ 1 � m -- � 1 O , . a : ' ¢ ' i Black River ' Culvert HERRERA Alr rt Wa ENVIRONMENTAL CONSULTANTS Figure 4. Storm drains and facilities at Renton Municipal Airport. 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LEGEND Industrial I i-=- :'::;::: :.:r-n✓? "[ I ' =Hr <:° 1 Open space 1 i 1 Commercial Wooded/for R '�`� ��' .S ; •.r � eSt • / T� k I �r`,��r„''ham �, Municipal\ ® Multifamily residential ;I I 3 » T• Airport ^:r Single family residential Impervious surface (freeway) Basin boundary 0. I I • , -: �' --------- Subbasin boundary 1 .........., = city ------• City limits Limas �, .r, •r u..,I ' ......`.... �c.•:,.i-_c�,,d-;� � : .m�ac I J � APPROXIMATE SCALE IN FEET J � \ z;,^.? • aoo 200 o aoo soo 3 t 21 ST 10 *µC'q MAY \ � �� _ 1 J HERRERA ENVIRONMENTAL CONSULTANTS 14._'-4;n,vHLAKPp2 7-19-93 S L I I I Figure 6. Land use in the West Hill drainage basin A, , . . ..:: � l/ . 1. ill / �� 11�/ : . ::. . �/ � /�l f� :::.;. ..: ) 1'; ::: :. 1 / V!f t � �( j .:::. ''::>::: ( '� �-/` .. : LEGEND >:. :: : :>::>:.:. .::::.:<.>: ...: .. ;: ::.. \ Coleman PL " -- Basin boundary .::. .::.::.:::::.:..:::. .... .... .< .. ...:........... ...... .:. . :>:: :.:::........:....:::.::::. . _. a >._ ::::... . .::.:....... ::.:.::.:..:.:.:.,:.::... .:.::.:.::. . .:::::::.:: . -. '\:... d :;:;: ;:;is i:� . \� >:; �\ s �\ F ..':::;:::;;: \ ,. .... l .>::: >::::'. o �... �Y ..*:::>:::::: : :...:�::.;:: .. >,::;.: L k VVa�h:: ton.... .:::::. .::::.>:.;: .:. ........:.: :.;:.:.:.:: :.. ......... i :>::>:' 1. I 1 .::>::: ::<::>::> :>:::. >: . \ �o I 1 ::.:;:.:::: .) . o .::.... ,"* >:::: .. (f I 1 I `' --T �. / �'K North - , `'g Renton 405 .. \-, r <..-.,' ' Outfatl outtal� 1 1 .. ,;�. :: 1✓ co 1 �� ' D r .... T C) m Renton " m Z C-I MUAIfiOft : BATHYMEiRYNMETERS P m , ^ o soo i2oo HERRERA v V ENVIRONMENTAL coNsucrANrs APPROXMAATE SCALE N FEET Figure 7. Bathymetry of the littoral zone in Lake Washington near Renton. Adapted from USGS (1983). A-7 _ _ 1 � \ � 1I �, j� / / !I / : J /II � I , } �� �f/� �, \�/ .�I } �; .. �! LEGEND � �` ''" / oil and othe pants �'J Milf ' r I � � � �.� Other submerse p ants o y w II Calms . n ater i ies nl >..: ..:: Ba b d ::.:..:. :::.;:.:::>::........... .::.::::::.:..........:..::...:.::.....:—.....:.....:......:...:...... .::..... sin oun ry .::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.::::::.:::::::::::::::::::::.::::::::..::::..::::::::::::......::::::::::. ;. `.. »::>::>::::>:: >::>::;>::>::::>::::::::»;::»::>:::::«:>:.>.::3:;:>:::::»::..:::::::>:>::>::::>::;:».,....>.:"..">.::>::.....>;>::::>::>:<:»>:<:»::>:::>::>::>::>::>::>::>:_:::<:»>:: �,.. ...:. :;;::::» ::.: s ...I:\ h :::..:.:::.: ........... ..:::.::.:::::.. .::.::::.;::.;:.; `� :.>:::, . r ::.;::: o Oar` �, ....:.::::.:::>:::::: .,. : .. \:. ::.:.:::.;:: :::. :......:::;:.,......... :::>:::: . Lake ,.,.a . rgl`or� >::::::.:': >.: I I .:. :::: : :: - ....- :. I . .... .. :;::>;::;:.., :..,;.:;..: :..:... l b .: ....:.:::..:.:: .::: ....>:: :::....�<: I :... ::::::::.::::.:::::.:::::::::::.:::::::.:::._:::::.:::.::::::::::.:::::.:::.:::::::::::::.._:::.:...:....:;:::::::::::::::.::::.....:....... .;:::::::...;...... w .. .. ,.....:...:..:.:.:..:::::::::::::::.::::::::.::::.::..::::.:::::::::.::::::::::.::::::::.:::::::.:::.:::::::::.-......:::::::....................:::... ::.:::::..::::........:::::::...::::::: m F 3 .:. .::::,:::..::::::::::::::::::::::::::::::::.:::::::.::::::::::::. .::::.:.::..:..:.:.:..:::.::.:.::::.:::.::::.:::::::::::::.:::: '.:._::.:,.:.:::::::::::::::::::..:..:..::::. o i ` ;:, <.;:<.;:.;::...,.::<;:.;:::;:»::><>:>::>::>:<:::.,..."..".::::>:::...."":.".":....:....>.::::::::>:::: :>::»<::.>::;::>:>:...::;::;;;;;:.;::<:.::.::.;;;:.;::.:<.;::.;;:.;:<;;;:.;:.::.::::.:::.:.:..::.::.......:;::.;;;;:.:::..:. ::.:. .:. :.:>::::::::::::::::::::::::::.:..::.:_::..::::::::::::::.::.::.:I..:::::::::::::::.:::::::.::::::::::::::::.:::..::.::::.:::: :.::::::. ; .: . : :::::: :: . 1 � :.::... ,r-.. �, .......::. . .. . .::.: �, ,,_; ../. :,:. 1 s .. ::::.:::...: :.:.:.:.:.:.:::::.: .: t . Rent n 1 \ ;;: Outfall ` � �Wesf Nrtl ''` j Oatfall . --- / \ . -� ,��.: _ r ou 'A '� 7c D I z Renton .. / C Municipal BATHYMETRY N METERS r Airport o soo izoo HERRERA ENVIRONMENTAL CONSULTANTS I / APPROXIMATE SCALE N FEET Figure 8. Contour map showing areal distribution of milfoil and other aquatic plants in Lake Washington at the city of Renton. Adapted from Metro (1985). A-8 : =� - LL r ] 1� � El Illm I 14 _I.1I1-L LEI II.1 11 I . .......... WK ::..:;:z;?)::i:::::?:::ii2:::i:::.`.. '<i::;;:::;:::;:::;;5w�i::!'A7.::i::i:;::: ,q::�;::: ` .::• : \ _ .. �- - _ _ J - r IT i::::is::i:G:!:::i::i::i::i::i:::i::i'`b`::�:.::::;::i:.n' �::.:.:�?:::::;•:ii:^:.i:.;. :: :� --- _ ............ . 1 _- _ ....:....... ... .::::.::::::::::::::'. ............... . ...... .... di . y�y V N I — — T -I AVE ___ ----f c to --- / CJl _ ---•--...... __ zco r 3 � s � , �I ^s '� I n v Cry x (D QN ((D r.► �p m W. n' c-D x O A/ Q n N C (D ^s § F S Z a - G < z C `S = - (D o a n> -� Lo rA' ;gym y �nn 1 Base/Acute CIE Base/Chronic Storm/Acute 71 Storm/Chronic 10 O � o o Exceed Standard > ® 0 O (DE3 Mtn Y 1 W O o E + mile o � o Below Standard + X Cc 3tE 0.1 ♦- 3!E + 0.01 WH-1 WH-2 W -3 WH-4 N -1 N -2 N -3 N -4 N -5 N -6 Station Location C=q HERRERA ENVIRONMENTAL Figure 10: Copper concentrations In storm and base flow samples compared with water quality standards. CONSULTANTS 1 t Base/Acute W Base/Chronic a o o Storm/Acute StM a orm/Chronic a � 10 O � O cz CIE O X In Exceed Standard X W Ca > U W 0 o Below Standard Cz W NOW 0.01 WH-1 WH-2 W -3 WH-4 N -1 N -2 N -3 N -4 N -5 N -6 Station Location HERRERA EN Figure 11: Lead concentrations in storm and base flow samples compared with water quality standards. CONSULTANTS 1 Base/Acute X Base/Chronic Storm/Acute O Storm/Chronic 10 O Cz -n (a) Cz � Exceed Standard O > � 1 a Cz 3 N (D E ® Below Standard o 49 0 cz tr 0.1 0.01 WH-1 WH-2 W -3 WH 4 N -1 N -2 N -3 N -4 NA-5 N -6 Station Location CnEq HERRERA Figure 12: Zinc concentrations In storm and base flow samples compared with water quality standards. EN CONSULTANTS Black Rwer culvert , West Hill �ERIrnETEaaoAD r..—•--• eea s,4 Storm Drain Outfall �.• -6"D' I 544 i APRON C ..J 'pRON Renton Municipal LAKE _ — Airport e © © WASHINGTON Call or 2 _.. Renton 4cr Outfall �u LEGEND e 6 OF-006,i '6m� e O y e� rYf` � }�OF007. Property boundary ApnON A , eae - so2l tls ' . -0 �` r � 'l —>. ONlall eez ,e F-0;11, - Discharge pipe to 711 o e� ep E ,� ,� - Black River Culvert " OF �t OF-017 eDe e.Yr e., A. ,\ v OF-01 o e75 p 21 1 r F-009 I OV szv : Storm sewer connections to Black River Culvert _ Ake -t $ have not been confirmed. 4-92 ADA PARKING e.De Q oD +„ 1pG — eat AN AVENUE I Kaso 1De2 �( 10471 10 u IaEI a 10-70 e.52 r. Ia469 ° 1071 44/ lo-n las9 PARKING la00 la1]2 J: D _d GARAGE a50 1a57 10120 06 -�" � I loss •' i- 1a90 lalJ., $ lose — j as — — Kai lo-a los4 , F-51 ID.lam\ PARK AVENUE N K-610 fps' i IL"W3 tole i G H lass OKae OF-001 O II- - G�K 1 .— GARDEN AVENUE N i r-�10-63 LN w'�FIINGTON aOU���D K-620 ----1 pR�'N PJENU G NOR-D I T O ® ✓1 �PV N APPROXPAA,E SCALE N FEEL \OAj1 `�,a 'i � R North Renton ODl5 / Drainage Basin Figure 13. Boeing NPDES stormwater sampling station locations. Reference: Babich 1993 personal communication. Existing Storm Sewer Line 0 U U U 4 men aiiiin ene reel M04jaw anit Well MEN=me ®SW-3 Storm Wale(Sampling /4f '17.CP Storm Sewer Line SW—MH Location and Number Manhole and Cleanout See,OWN re"I'll 1991 Storm Sewer Addition Existing Storm Sewer System Abandoned Storm Sewer -------------- --------------- RCP Storm Sewer Line SW-4 0 0 SW-3 > KA Drain ae Ditch Erosion Control Pond*2 with Spillway RON�me 111100 Sea Beer.1 SW—EC2* :D U U 0 0 250 500 RCP Storm Sewer Line Scale in Feel III • Notes:t. Erosion control pond 82 is aboveground. 2. Sample will be from pond spillway. 3. Pond do,"not connect to manhole. Figure 14. Stormwater sampling stations at the Paccar site. Source: Kuroiwa et al. (1991 personal communication) N rAl t11LLLLLU V -��/ /� II�i ® Z ® x" cu 14 con —wry•- � e � w ww_w_ r -. L- 1 .............. ....;;...;.:..:...:...:..:::....::. TH LO- rT- 1 7 1 ................ i L i� — _ 1 _ ...... ...................... 1 _ ...... .. ..................... .. ...... .. .................... .. J - _ L r. 1 t� >:�:err::�:::; �:�:�>•i:�:��•��'��'•>.'�... .:.:.:.:.:. ::. :• :. 1' ::;::; :::::.:...... — tom. }— t I :.::': :;..: :< :.:. :::::.::::::a >..__ M ��•.TITIr''�'hitiri•i _ L O / rn - r 1 ► z o ■ ® m p Q cn t3 a' cn c c o c w g N w j co CD m O c O O = cn a D y Cn CY* > Q CD p O O C D G >0. CD 0 0 CD CD W O U) O O a) 0 0 D <= p C O O, p n CO pit �• Cn O C m En p' O � A) Sv 's t� O — CD N N =� � D C IN IN�. p' (Q -a O O 00 CAD CD CD f�D 0O m W Q N —+ to = X rn D O �• '3� bra APPENDIX B Tables d Table 6. Results for conventional pollutants in stormwater samples collected at North Renton and West Hill storm drain outfalls. Urban Runoff Range of Mean by Land Outfall Detected Use Category North Renton West Hill Values Comm. Resid. Sample collection Date 01/19/93 01/19/93 - - Begin time 1050 1005 - End time 1330 1355 - - Number of samples 9 9 - Hydrology Flow rate(cubic feet/second) 16 8 - - - Daily rainfall (inches) 0.59 0.59 Preceding day's rainfall(inches) 0 0 Conventional pollutants(a) Temperature(degrees C) 4.5 3.1 - - Dissolved oxygen(mg/L) 11.4 13.2 - - - pH 6.76 ® - Conductivity(umhos/cm) 64.5 89 - - - Total suspended solids(mg/L) 80.8 82.4 4-2032 b 69 b 101 b Total dissolved solids(mg/L) 46 52 - - - Hardness(mg/L CaCO3) 25.6 35.6 Biochemical oxygen demand(mg/L) 7.5 8.3 2-41 b 9.3 b 10 b Chemical oxygen demand(mg/L) 40 47 18-275 b 57 b 73 b Total residual chlorine(mg/L) 0.5 U 0.5 U - Total cyanide(ug/L) 0.004 UJ 0.004 UJ - - Oil and grease(mg/L) 4.47 3.82 - Total phenols(mg/L) 0.04 U 0.04 U - - Fecal coliform bacteria(cfu/100 mL) �J • r J - 645 c 1,200 c Fecal streptococcus bacteria(cfu/100 mL) 740 520 - Total phosphorus(mg/L) INKITM 0.013-4.3 b 0.201 b 0.383 b Orthophosphate(mg/L) 0.032 0.024 0.004-.6 b 0.08 b 0.143 b Total Kjeldahl nitrogen(mg/L) 0.636 0.664 0.246-12 b 1.18 b 1.9 b Ammonia nitrogen(mg/L) 0.422 0.101 <0.01-7.2 c 0.2 c 0.1 c Nitrate nitrogen(mg/L) 0.231 0.448 0.173-7.3 bd 0.572 c 0.736 cd Nitrite nitrogen(mg/L) 0.036 0.011 - - - Water Quality Standards(mg/L) (a) Ammonia(mg/L) Acute 24.5 29.0 Chronic 1.8 2.1 Data Qualifiers: U = undetected at specified detection limit;J=estimated value;M =mean calculated from duplicate samples or analyses. cfu =colony-forming units (a) For fecal coliform bacteria,values shaded in black exceed the criterion for Class AA(extraordinary)waters (50 cfu/100 mL). For total phosphorus,values shaded in black exceed recommended levels for discharges to lakes(0.05 mg/L). For pH,values shaded in black exceed the criterion for Class AA waters(6.5 to 8.5) (b) Nationwide Urban Runoff Program(U.S. EPA 1983). Samples collected at 28 sites across the country. (c) Samples collected in three residential basins in Bellevue,WA (Prych and Ebbert 1986). (d) Sum of nitrate plus nitrite. LWOUTC.WQ1 B-6 Table 5. Washington Department of Ecology surface water quality standards for Class AA freshwaters. Parameter Standard Fecal coliform bacteria Geometric mean shall not exceed 50 organisms per 100 mL, with not more than 10 percent of the samples exceeding 100 organisms per 100 mL. Dissolved oxygen Shall exceed 9.5 mg/L. Total dissolved gas Shall not exceed 110 percent of saturation at any point of sample collection. Temperature Shall not exceed 16°C due to human activities. Temperature increases shall not, at any time, exceed t= 23/(T+ 5), where t=the permissive temperature change across the dilution zone and T = highest existing temperature outside the dilution zone. pH Shall be within the range of 6.5 to 8.5 with a man- caused variation with range of less than 0.2 units. Turbidity Shall not exceed 5 NTU over background when the background turbidity is 50 NTU or less, or have more than a 10 percent increase in turbidity when the background turbidity is more than 50 NTU. Toxic, radioactive, or deleterious Shall be below those which may adversely affect material concentrations characteristic water uses, cause acute or chronic conditions to the aquatic biota, or adversely affect public health. Aesthetic values Shall not be impaired by the presence of materials or their effects, excluding those of natural origin, which offend the senses of sight, smell, touch, or taste. Source:WAC 173-201 NTU nephelometric turbidity units 255B\T3TABLES Herrera Environmental Consultants B-5 Table 4. Contaminant spills reported in North Renton and West Hill drainage basins, 1990-1993. Responsible Party Spill Location Subbasin Date Material Quantity Media Source North Renton Basin A.H. Powers Lake Washington at Coulon Park WF(a) 7/21/93 Oil/petroleum 20-50 gallons Surface water Ship incident Puget Power 1101 Lake Washington Blvd WF 10/07/92 Oil/petroleum Unknown Surface water Unknown Unknown 1101 Lake Washington Blvd WF 4/2/91 Oil/petroleum Unknown Lake Washington Waste Management Rainier Gene Coulon Park WF 3/08/93 Oil/petroleum 1 gallon Roadway Auto/truck incident Boeing 10-65 Building N1 5/04/92 Wastewater 15 gallons Surface water Industrial discharge Boeing Renton plant N1 5/14/92 Oil/petroleum 0.5 gallons Roadway Auto/truck incident Boeing Renton plant N1 5/18/92 Hazardous material 40 gallons Roadway Industrial discharge Beadex Manufacturing 833 Houser Way N3 8/15/91 Not reported 15 gallons Building Beadex Manufacturing 833 Houser Way N3 2/25/91 Hazardous material 1.5 gallons Soil Beadex Manufacturing 833 Houser Way N3 8/12/91 Oil/petroleum 15 gallons Building Renton School District 1220 N 4th Street N3 8/16/90 Oil/petroleum Unknown Soil Unknown North 1-405,just north of SR-900 N4 11/O1/90 Oil/petroleum 35-40 gallons Soil Unknown 1058 Glenwood Avenue NE N4 5/31/91 Oil/petroleum 1.5 gallons Soil Waste Management Rainier 450 Monroe Avenue NE N5 8/27/91 Oil/petroleum 10 gallons Roadway Auto/truck incident McKnight Middle School 2600 NE 12th Street N6 6/28/90 Oil/petroleum 5 gallons Roadway Unknown Lake Washington Blvd at Sunset Blvd N7 4/9/91 Hazardous material Unknown Lake Washington k' West Hill Basin Affordable Auto Sales 515 Rainier Avenue W3 1/14/91 Hazardous material Unknown Surface water Russ Price Cul-de-sac east of Taylor Avenue W3 4/23/91 Other Unknown Soil SME Corporation/Jim Little 765 Rainier Avenue S W4 7/3/91 Oil/petroleum 75 gallons Ground water Action Aviation 840 W Perimeter Road W5 8/28/91 Oil/petroleum 10 gallons Lake Washington Action Aviation 840 W Perimeter Road W5 8/29/91 Oil/petroleum 5 gallons Surface water Auto/truck incident Action Aviation 840 W Perimeter Road W5 8/29/91 Oil/petroleum 5 gallons Lake Washington Benair Aviation (b) 300 Airport Way W5 11/20/91 Oil/petroleum Unknown Surface water Private aircraft Renton Airport W5 10/10/91 Oil/petroleum Unknown Surface water Airplane accident Renton Airport Renton Airport W5 10/10/91 Oil/petroleum Unknown Surface water Dukes Transmission 255 Rainier Avenue W6 4/22/91 Oil/petroleum Unknown Soil Unknown 134 Rainier Avenue W6 5/06/93 Oil/petroleum 5 gallons Surface water Auto/truck incident (a) WF =waterfront (b) Business has moved and is no longer located in the study area. Source: Ecology (1993). SPILL.WQ1 Table 3. Generators of hazardous waste in the North Renton and West Hill drainage basins. Map Facility SIC Facility Name No. Subbasin Type (a) Code Operation Address North Renton Basin Highland One Hour Cleaners 102 N5 CE 7211 Power laundry 2808 10th St SAS Fluid Power, Inc. 79 N3 CE 5084 Industrial mach. & equip. 919 Houser Way N Boeing Renton plant 175 N1 L 3721 Aircraft manufacture 8th and Logan Paccar Defense Systems/Kenworth truck 63 N2/N3 L 3743 Railroad equipment 1400 N 4th St Puget Sound Power and Light 183 WF (b) L 4911 Electric power utility 1101 Lake Washington Blvd American Auto Painting 201 N3 S 7532 Automotive painting 310 3rd PI N BP Oil Corp. 96 N4 S 5541 Service station 3002 Sunset Blvd Express Tune 136 N3 S 7538 General auto repairs 233 Sunset Blvd N Performance Apex auto shop 165 N3 S 7538 General auto repairs 410 Sunset Blvd N Renton School District 176 N3 S 4151 School buses 1220 4th Ave N The Cleaning Shoppe 181 N4 S 7215 Laundromat 2830 Sunset Blvd NE w West Hill Basin Brown Bear Car Wash 146 W6 CE 7542 Carwash 77 Rainier Ave S U Haul of Renton 120 W3 CE 7519 Utility trailer rental 453 Rainier Ave N Rossoe, Inc. 177 W5 L 5172 Heating oil sales 201 Airport Way ARCO products 173 W6 S 5541 Service station 175 Rainier Ave S Harold's Auto Rebuild 124 W6 S 7532 Auto repair 124 Rainier Ave N Millet's UNOCAL 189 W6 S 5172 Heating oil sales 59 Rainier Ave S (a) CE = Conditionally exempt; S = small-quantity generator; L = large-quantity generator (b) WF=waterfront SIC = standard industrial classification Source: U.S. EPA (1993c) 255Q\GEN.wg1 Table 2. Riparian plant species observed on April 27, 1993 in the vicinity of the North Renton and West Hill basin outfalls to Lake Washington.a Common Name Scientific Name Life Form Western red cedar Thuja plicata tree Pine Pinus sp. tree Scouler's willow Salix scouleriana shrub Tall Oregon grape Berberis aquilifolium shrub Rose Rosa sp. shrub Himalayan blackberry Rubus discolor shrub Gooseberry Ribes sp. shrub Oceanspray Holodiscus discolor shrub Vine maple Acer circinatum shrub Snowberry Symphoricarpos albus shrub Hardhack Spirea douglasii shrub Evergreen huckleberry Vaccinium ovatum shrub Horsetail Equisetum sp. herb Soft rush Juncus effusus herb Reed canarygrass Phalaris arundinacea herb Common cattail Typha latifolia herb a Plant nomenclature follows Hitchcock and Cronquist (1987). 255B\T3TABLES Herrera Environmental Consultants B-2 Table 1 Land use in the North Renton and West Hill drainage basins (acres). Land Use North Renton Basin West Hill Basin Industrial 221 81 Commercial 126 44 Multifamily residential 198 30 Single family residential 467 450 Open space 55 42 Forested 116 89 Highway 53 0 Total 1,236 736 255B\T3TABLES Herrera Environmental Consultants B-1 18 Average annual areal stormwater pollutant loading arising from the North Renton and West Hill drainage basins 19 Stormwater pollutant concentrations and areal loadings arising from subbasins within the North Renton and West Hill drainage basins 20 Areal stormwater pollutant loading ranking by subbasin within the North Renton basin 21 Areal stormwater pollutant loading ranking by subbasin within the West Hill basin 22 Contaminant concentrations in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to sediment quality guidelines and historical data 23 Concentrations of miscellaneous organic compounds detected in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to historical data and marine sediment criteria 24 North Renton and West Hill drainage basin illicit connection survey results 25 Stormwater monitoring data for the Boeing Renton plant site 26 Stormwater monitoring data for the Paccar site 27 Summary of results for selected parameters measured in water samples collected from North Renton and West Hill storm drains 28 Summary of existing public education programs 29 Average pollutant removal efficiencies for selected stormwater treatment technologies 30 Information on permitting, regulatory compliance, cost, and urban applicability of selected structural controls 31 Estimated cost of the recommended pollutant abatement program for the Renton/Lake Washington study area TABLES 1 Land use in the North Renton and West Hill drainage basins 2 Riparian plant species observed on April 27, 1993 in the vicinity of the North Renton and West Hill basin outfalls to Lake Washington 3 Generators of hazardous waste in the North Renton and West Hill drainage basins 4 Contaminant spills reported in North Renton and West Hill drainage basins, 1990-1993 5 Washington Department of Ecology surface water quality standards for Class AA freshwaters 6 Results for conventional pollutants in stormwater samples collected at North Renton and West Hill storm drain outfalls 7 Results for metals in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls 8 Results for organic pollutants in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls 9 Base flow water quality results for subbasin monitoring stations in North Renton and West Hill drainage basins 10 Storm flow water quality results for subbasin monitoring stations in North Renton and West Hill drainage basins 11 Exceedances of water quality standards for copper, lead, and zinc 12 Comparison of metals concentrations in stormwater samples collected from the North Renton and West Hill drainage basins 13 Average annual runoff volume estimates for the North Renton and West Hill drainage basins 14 Average annual stormwater pollutant loading arising from the North Renton and West Hill drainage basins 15 Stormwater pollutant concentrations and total loadings arising from subbasins within the North Renton and West Hill drainage basins 16 Stormwater pollutant loading ranking by subbasin within the North Renton basin 17 Stormwater pollutant loading ranking by subbasin within the West Hill basin APPENDIX B Tables Table 10. Storm flow water quality results for subbasin monitoring stations in North Renton and West Hill drainage basins. North Renton Monitoring Stations West HIII Monitoring Stations Urban Runoff NR-1 NR-2 NR-3 NR-4 NR-5 NR-6 NR 8(eJ WH-1 WH•2 WH-3 WH-4 Residential Commercial ContributingSubbasin N6 N5 N2 N3+N5 N4+N6 N1 NI W4 W3 W2 - W1 Sample collection Date 4/8/93 4/8/93 4/8/93 4/8/93 4/8/93 4/25/93 3/13-14/93 4125/93 4/25/93 4/25/93 4/25/93 •-Time 0900 1000 1050 1110 1130 0800 24 hrcomp. 0845 0915 o940 1010 Hydrology Flow rate(cubic feeVsecond) 0.28 1.1 2.5 6.5 2.3 3.7 1.03 0.6 0.92 J 0.31 0.93 - •- Dally rainfall(inches)(1) 0.83 0.83 0.83 0.83 0.83 0.52 0.47 0.52 0.52 0.52 0.52 -- -- Preceding day rainfall(inches)(f) 0.02 0.02 0.02 0.02 0.02 0.18 0 0.18 0.18 0.18 0.16 - -- Conventional pollutants(a) Temperature(degrees C) 10.8 11.1 11 11 11.1 11.3 NA 11 11.5 11.9 10.8 -- Dissolved oxygen(mg/L) 10.6 9.5 9.8 9.7 8.6 13.2 NA 12.4 10.4 12.6 -- -• -- pH 7.3 7.6 7.4 7.5 7.6 7.4 7.25 - -- Conductivity(umhos/cm) 37.5 22.8 75.2 80.4 64.6 18.4 NA 182.9 80 115.6 191.2 - -- Turbidity(NTU) 5.3 J 3.7 J 7.6 J 9.7 J 7.5 J 2 JM NA 6.7 J 3.5 J 2.5 J 3.7 J - Total suspended solibs(mg/L) 8.9 4.2 7.2 23 23 3.5 M 4.4 16 14 12 11 7-220 b 8-220 b Fecal coliform bacteria(cfu/100 mL) r �J ,e� 111111111111112M, MOM, M NA �J �J �J 200-1.5EB d Hardness(mg/L as CaCO3) 27.3 20.3 38.1 28.5 31.1 11 NA 74.3 37.6 37.6 70.9 - -- Nutrients(a) Total phosphorus(mg/L) MMoff, r M. oram 0,028 M T,: Offr ,� : 0.038 on MWIll0.383 c 0.201 c Soluble reactive phosphorus(mg/L) 0.007 0.01 0.021 0.025 0.015 0.01 M NA 0.022 0.011 0.014 0.024 - -- Ammonia nitrogen(mg/L) 0.059 0.064 0.203 0.194 0.156 0.103 M NA 0,024 0.056 0.359 0.01 U 0.01-4.5 d Nitrite+nitrate nitrogen(mg/Q 0.106 0.24 0.196 0.168 0.709 0.123 M NA 0.596 0.245 0.828 1.68 0.736 c 0.572 c Organic compounds Total petroleum hydrocarbons(ug/L) 1,370 840 500 780 1.570 250 UM NA 250 U 780 320 250 U NO NO Metals(ug/L)(e) r JM 30.0 7.0 J a r J �5 1 J 4.3 J 5-90 b 4.5-140 b N Copper 3.5; 25 fS,11'. Lead 8.1 ! '4.5 ' 6.1:� M 4.1 3.7 1'J 8-150 b 10-6.000 b Zinc low MIA M®i 183.0 69.0 11111111111M.n, 16.0 J 24.0 J 40.490 b 43-10,100 b Water quality standards Copper (A)(ug/L) 4.5 3.4 6.2 4.7 5.1 1.9 -- 11.5 6.1 6.1 11.1 (C)(ug/L) 3.4 2.6 4.5 3.5 3.8 1.5 -- 7.9 4.4 4.4 7.6 Lead (A)(ug/L) 10.7 7.4 16.4 11.3 12.7 3.4 •- 38.4 16.1 16.1 36.2 (C)(ug/L) 0.4 0.3 0.6 0.4 0.5 0.1 -- 1.5 0.6 0.8 1.4 Zinc (A)(ug/L) 34.7 27.0 46.0 36.0 38.8 16.1 -- 81.1 45.5 45.5 77.9 A(ug/L) 31.4 24.5 41.7 32.6 35.1 14.6 73.4 41.2 41.2 70.6 Ammonia (A)(mg/L) 15.6 11.1 14.1 12.8 11.1 25.2 -- 25.3 25.2 25.2 16.4 (C)(mg/L) 1.8 1.8 1.8 1.8 1.8 1.8 •- 1.8 1.8 1.8 1.8 Data qualifiers: J=estimate;M=mean calculated from duplicate samples or analyses;U=undetected;NA=not analyzed;NO=not detected. NTU=nephelometric turbidity units;cfu=colony-forming units. (a) For metals and ammonia,values shaded In gray exceed chronic toxicity criteria for aquatic life;values shaded In black exceed both chronic and acute toxicity criteria. For pH and fecal coliform,values shaded In black exceed criteria for Class AA (Extraordinary)waters. For total phosphorus,values shaded In black exceed recommended threshold values for discharges to lakes(0.05 mg/L). (b) Geometric means for 1986-1988 sampling In city of Seattle(Merrill 1989 personal communication). (c) Nationwide Urban Runoff Program(U.S.EPA 1983). (d) Wanielista and Yousef(1993). (a) Sample collected by Boeing for part 2 NPDES stormwater permit(Babich 1993 personal communication). (f) Measured at Sea-Tac Airport. (g) Water quality standards for copper,lead,and zinc are hardness dependent A=acute toxicity;C=chronic toxicity. LWASHS.WQ1 Table 9. Base flow water quality results for subbasin monitoring stations in North Renton and West Hill drainage basins. North Renton Monitoring Stations West Hill Monitoring Stations NR-1 NR-2 NR-3 NR-4 NR-5 NR-6 WH-1 WH-2 WH-3 WH-4 Contributing Subbasin N6 N5 N2 N3+N5 N4+N6 N1 W4 W3 W2 W1 Sample collection Date 04/20/93 04/20/93 04/20/93 04/20/93 04/20/93 04/20/93 4/20/93 4120/93 4/20/93 4/20193 Time 0845 0900 1035 1015 1045 1000 1120 1155 1220 1240 Hydrology Flow rate(cubic feet/second) 0.012 0.01 0.75 1 0.76 0.16 0.085 0.087 0.013 0.2 Daily rainfall(Inches)(c) 0 0 0 0 0 0 0 0 0 0 Preceding day rainfall(inches)(c) 0 0 0 0 0 0 0 0 0 0 Conventional pollutants(a) Temperature(degrees C) 10.8 12 11.3 11 11.1 13.5 10.4 11.8 11.8 11.6 Dissolved oxygen(mg/L) 8.2 9.7 7.5 11.3 11.2 10.3 12.8 12.0 9.2 9.8 pH 7.3 7.15 7.13 7.01 7.37 6.93 7.17 7.23 b 7.36 7.87 Conductivity(umhos/cm) 252 174.4 312 301 216 140.8 340 300 233 249 Turbidity(NTU) t- 1.4 1.3 8.6 5.4 0.62 0.9 7.2 1.9 3.6 1.7 Total suspended solids(mg/L) 2 0.8 4.8 1.4 0.5 U 4 21 3.8 37 3 Fecal coliform bacteria(cfu/100 mL) 34 J ®J ®J 12 J �J 6 J �J � J 8 J Hardness(mg/L as CaCO3) 96.9 63.2 128 124 74.9 56.4 153 133 78.7 90.2 Nutrients(a) Total phosphorus(mg/U 0.048 0.035 ' ' 0.033 EX,• '' so'' � Soluble reactive phosphorus(mg/L) 0.013 J 0.016 J 0.013 J 0.024 J 0.016 J 0.035 J 0.018 J 0.022 J 0.011 J 0.023 Ammonia nitrogen(mg/L) 0.016 0.012 0.501 0.364 0.023 0.189 0.102 0.041 0.046 0.021 Nitrite+nitrate nitrogen(mg/L) 4.55 4.15 0.648 0.527 5 0.315 1.35 0,895 2.9 1.68 r Organic compounds Total petroleum hydrocarbons(ug/L) 250 U 250 U 250 U 250 U 250 U 260 U 250 U 250 U 280 250 Metals(ug/L)(a) Copper 8.8 1.0 1.3 1.4 @,f3'.p. 9.9 1.0 U 2.7 2.1 Lead '�3,1 1.8': 7.5;: 1.3 0.8 10.Oj? il):a% 0.5 1f).1I: 1.7 Zinc 19.0 64.0 18.0 40.0 37.0 91.0 8.0 13.0 7.0 Water quality standards(d) Copper (A)(ug/L) 14.8 9.9 19.3 18.7 11.6 8.9 22.8 20.0 12.2 13.9 A(ug/L) 9.9 8.9 12.6 12.2 8.0 8.2 14.7 13.0 8.3 9.3 Lead (A)(ug/L) 53.9 31.3 76.8 73.8 38.8 27.1 96.4 80.6 41.3 49.2 (C)(ug/L) 2.1 1.2 3.0 2.9 1.5 1.1 3.8 3.1 1.6 1.9 Zinc (A)(ug/L) 101.5 70.7 128.5 125.1 81.6 64.2 149.5 132.8 85.1 95.5 (C)(ug/L) 92.0 84.0 116.4 113.3 73.9 58.1 135.4 120.3 77.1 88.5 Ammonia (A)(mg/L) 15.7 17.9 18.3 20.2 16.1 20.8 17.7 16.7 14.7 10.0 A OWL) 1.8 1.8 1.8 1.8 1.0 1.8 1.8 1.8 1.8 1.8 Data qualifiers: J=estimate; U=undetected. NTU=nephelometric turbidity units;cfu=colony-forming units. (a) For metals and ammonia,values shaded In gray exceed the chronic toxicity criteria for aquatic life;values shaded in black exceed both chronic and acute toxicity criteria. For pH and fecal coliform bacteria, values shaded in black exceed criteria for Class AA(Extraordinary)waters. For total phosphorus,values shaded In black exceed recommended threshold levels for discharges to lakes(0.05 mg/L). (b) Estimated value. Calculated as average of other stations. (c) Measured at Sea-Tac Airport No rain fell the day before sampling(4/19);0.04Inches of rain fell on 4/18. (d) Water quality standards for copper,lead,and zinc are hardness dependent A=acute toxicity;C=chronic toxicity. LWASHB.WOt Table 8. Results for organic pollutants in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls (continued). MTCA State Water Urban Outfall Cleanup Quality Standards(b) Runoff(c) North Renton West Hill Level(a) Acute Chronic Polychlorinated biphenyls(ug/L) PCB-1016 1.00 U 1.00 U - - - ND PCB-1221 2.00 U 2.00 U - - - ND PCB-1232 1.00 U 1.00 U - - ND PCB-1242 1.00 U 1.00 U - - - ND PCB-1248 1.00 U 1.00 U - - - ND PCB-1254 1.00 U 1.00 U - - - ND PCB-1260 1.00 U 1.00 U - - -- 0.03 Total PCBs 8.00 U 8.00 U 2.7E-05 2 0.014 0.03 Volatile organic compounds(ug/L) Acetone 5.0 U 5.0 U - - - - Acrolein 10 U 10 U - - - - Acrylonitrile 10 U 10 U 0.4 - - - Benzene 1.0 U 1.0 U 0.43 - 1-13 Bromodichloromethane 1.0 U 1.0 U - - - 2 Bromoform 1.0 U 1.0 U 219 - - 1 Bromomethane[methyl bromide] 2.0 U 2.0 U 968 - - ND 2-Butanone 5.0 U 5.0 U - - - - Carbon disulfide 1.0 U 1.0 U - - - - Carbon tetrachloride 1.0 U 1.0 U 2.66 - 1-2 Chlorobenzene 1.0 U 1.0 U 5,030 - - 1-10 Chloroethane 2.0 U 2.0 U - - - ND 2-Chloroethylvinylether 1.0 U 1.0 U - - - ND Chloroform 1.0 U 1.0 U 283 - - 0.2-12 Chloromethane[methyl chloride] 2.0 U 2.0 U - - - ND Dibromochloromethane 1.0 U 1.0 U - - - 2 1,2-Dichloroethane 1.0 U 1.0 U 59.4 4 1,1'-Dichloroethane 1.0 U 1.0 U - - 1.5-3 trans-1,2-Dichloroethene[1,2-trans-dichloroethylene] 1.0 U 1.0 U 3,280 - 1-3 cis-1,2-Dichloroethene 1.0 U 1.0 U -- - - - 1,1'-Dichloroethene[1,1'-dichloroethylene] 1.0 U 1.0 U 1.93 - - - 1,2-Dichloropropane 1.0 U 1.0 U 23.2 - - 3 trans-1,3-Dichloropropene[1,3-dichloropropylene] 1.0 U 1.0 U -- - -- cis-1,3-Dichloropropene[1,3-dichloropropylene] 1.0 U 1.0 U 18.9 - - - Ethylbenzene 1.0 U 1.0 U 6,910 - 1-2 2-Hexanone 5.0 U 5.0 U - - - - 4-Methyl-2-pentanone 5.0 U 5.0 U - - - - Methylene chloride 2.0 U 2.0 U 960 - - - Styrene 1.0 U 1.0 U - - - - 1,1,2,2-Tetrachloroethane 1.0 U 1.0 U -- - - 2-3 Tetrachloroethene[tetrachloroethylene] 1.0 U 1.0 U 4.15 1-3 Toluene 1.6 9.2 48,500 - - 3-9 1,1,2-Trichloroethane 1.0 U 1.0 U 25.3 - - 2-3 1,1,1-Trichloroethane 1.0 U 1.0 U 41,700 - - 1.6-10 Trichloroethene[trichloroethylene] 1.0 U 1.0 U 55.6 - - 0.3-12 Trichlorofluoromethane 2.0 U 2.0 U - - - 0.6-27 1,1,2-Trichlorotrifluoroethane 2.0 U 2.0 U - - - - Vnyl acetate 1.0 U 1.0 U - Vinyl chloride 2.0 U 2.0 U 2.41 - - Xylenes total 2.0 U 2.0 U 230,000 - - Three-hour composite samples collected on January 19,1993. Data Qualifiers: U=undetected at specified detection limit;J =estimated value; ND=not detected. (a) Model Toxics Control Act cleanup levels(method B;method A cleanup levels are the same as the state water quality standards). (b) WAC 173-201 A-030. (c) Nationwide Urban Runoff Program(U.S. EPA 1983). Samples collected at 28 sites across the country. LWOUTO.WQ1 B-10 Table 8. Results for organic pollutants in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls (continued). MTCA State Water Urban Outfall Cleanup Quality Standards(b) Runoff(c) North Renton West Hill Level(a) Acute Chronic Organonitrogen compounds(ug/L) Carbazole 1 U 1 U - - - - Miscellaneous semivolatile compounds(ug/L) Benzidine 10 U 10 U 4-Chloroaniline 3 U 3 U 3,3'-Dichlorobenzidine 5 U 5 U 0.046 - ND 2,4-Dinitrotoluene 5 U 5 U 2.51 - - ND 2,6-Dinitrotoluene 5 U 5 U - - ND 2-Nitroaniline 5 U 5 U - - - 3-Nitroaniline 5 U 5 U - - - 4-Nitroaniline 5 U 5 U - - Nitrobenzene 1 U 1 U 449 - - ND n-Nitrosodimethylamine 1 U 1 U - - n-Nitrosodiphenylamine(1) 1 U 1 U - n-Nitroso-di-n-propylamine 1 U 1 U - - - ND Miscellaneous oxygenated compounds(ug/L) Benzoic acid 2.5 J 10 U 494,000 - - - Benzyl alcohol 5 U 5 U - - - - 4-Bromophenyl-phenylether 1 U 1 U - - - ND bis(2-Chioroethoxy)methane 1 U 1 U - - - ND bis(2-Chloroethyo ether 1 U 1 U 0.854 - - ND 4-Chlorophenyl-phenylether 1 U 1 U - - - ND Dibenzofuran 1 U 1 U - - Isophorone 1 U 1 U 361 - - 2,2'-Oxybis(1-chloropropane) 1 U 1 U 42,000 - -- ND [bis(2-chloroisopropyl)ether] Pesticides(ug/L) Aldrin 0.05 U 0.05 U 8.16E-05 2.5 0.0019 0.002-0.1 Alpha-BHC 0.05 U 0.05 U - -- - 0.0027-0.1 Beta-BHC 0.05 U 0.05 U - - - 0.018-0.1 Delta-BHC 0.05 U 0.05 U - - - 0.004-0.1 Gamma-BHC(Lindane) 0.05 U 0.05 U 0.0104 2 0.08 0.007-0.1 Alpha-chlordane 0.05 U 0.05 U -- -- - Gamma-chlordane 0.05 U 0.05 U - - - 4,4'-DDO 0.10 U 0.10 U - - - ND 4,4'-DDE 0.10 U 0.10 U - - 0.007-0.027 4,4'-DDT 0.10 U 0.10 U 3.56E-04 1.1 0.001 0.1 Dieidrin 0.10 U 0.10 U 8.67E-05 2.5 0.0019 0.007-0.1 Endosulfan I 0.05 U 0.05 U - 0.22 0.056 0.008-0.2 Endosulfan II 0.10 U 0.10 U - 0.22 0.056 ND Endosulfan sulfate 0.10 U 0.10 U - - - ND Endrin 0.10 U 0.10 U - 0.18 0.0023 ND Endrin aldehyde 0.10 U 0.10 U - -- -- ND Endrin ketone 0.10 U 0.10 U - -- -- Heptachlor 0.05 UJ 0.05 UJ - 0.52 0.0038 0.01-0.1 Heptachlor epoxide 0.05 U 0.05 U - - -- 0.003-0.1 Methoxychlor 0.50 U 0.50 U - -- -- Toxaphene 5.00 U 5.00 U - 0.73 0.0002 ND continued B-9 Table 8. Results for organic pollutants in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls. MTCA State Water Urban Outfall Cleanup Quality Standards(b) Runoff(c) North Renton West Hill Level(a) Acute Chronic Low molecular weight polycyclic aromatic hydrocarbons(ug/L) Acenaphthene 1 U 1 U 643 - - ND Acenaphthylene 1 U 1 U - - - ND Anthracene 1 U 1 U 25,900 - - 1-10 Fluorene 1 U 1 U 3,460 - - 1 2-Methyinaphthalene 0.6 J 1 U - - - - Naphthalene 1 U 1 U 988 - - 0.8-2.3 Phenanthrene 1 U 1 U - - - 0.3-10 Total LPAHs 0.6 7 U - - - - High molecular weight polycyclic aromatic hydrocarbons(ug/L) Benzo(a)anthracene 1 U 1 U 0.0296 - - 1-10 Benzo(a)pyrene 1 U 1 U 0.0296 - - 1-10 Benzo(b)fluoranthene 1 U 1 U 0.0296 - - 1-5 Benzo(b)fluoranthene 1 U 1 U 0.0296 - - 4-14 Benzo(g,h,)peryiene 1 U 1 U - - - 5 Chrysene 0.6 J 0.5 J 0.0296 - - 0.6-10 Dibenzo(a,h)anthracene 1 U 1 U 0.0296 - - 1 Fluoranthene 1.2 0.8 J 90.2 - - 0.3-21 Indeno(1,2,3-cd)pyrene 1 U 1 U 0.0296 - - 4 Pyrene 0.9 J 0.7 J 2,590 - - 0.3-16 Total HPAHs 2.7 2.0 - - - - Phenolic compounds(ug/L) 4-Chloro-3-methyl phenol[p-chloro-m-cresol] 2 U 2 U 2-Chlorophenol 1 U 1 U 96.7 - 2 2,4-Dichlorophenol 3 U 3 U 191 - - ND 2,4-Dimethylphenol 2 U 2 U 553 - - 1-10 4,6-Dinitro-2-methylphenol[4,6-dinitro-o-cresol] 10 U 10 U - - - - 2,4-Dinitrophenol 10 U 10 U 32 - ND 4-Methyiphenol 0.8 J 1 U - - 2-Methylphenol 1 U 1 U - - - 2-Nitrophenol 5 U 5 U - - - 1 4-Nitrophenol 5 U 5 U - - 1-37 Pentachlorophenol 5 U 5 U 4.91 - - 1-115 Phenol 2 U 2 U 1,100,000 - - 1-13 2,4,6-Trichlorophenol 5 U 5 U 3.93 - - ND 2,4,5-Trichlorophenol 5 U 5 U - - - - Chlorinated hydrocarbons(ug/L) 2-Chloronaphthalene 1 U 1 U - - - - 1,2-Dichlorobenzene 1 U 1 U 4,200 - -- ND 1,3-Dichlorobenzene 2.3 1.7 - - - ND 1,4-Dichlorobenzene 1 U 1 U - - - ND Hexachlorobenzene 1 U 1 U 0.239 - - ND Hexachlorobutadiene 2 U 2 U 29.9 - - ND Hexachlorocyclopentadiene 5 U 5 U 4,810 - - Hexachloroethane 2 U 2 U 5.33 - ND 1,2,4-Trichlorobenzene 1 U 1 U 24.3 - ND Phthalates(ug/L) Butylbenzylphthalate 1 U 1 U - - - 1-10 Di-n-butylphthalate 0.8 J 1 U 2,910 - 0.5-11 Diethylphthalate 1 U 1 U - - - 1-10 Dimethylphthalate 1 U 1 U 72,000 - - 1 bis(2-Ethylhexyl)phthalate 5.9 3.7 3.56 - - 4-62 Di-n-octylphthalate 1 U 1 U - - - 0.4-2 continued B-8 Table 7. Results for metals in stormwater samples collected January 19, 1993 at North Renton and West Hill storm drain outfalls. Urban Runoff MTCA Range of Outfall Cleanup Detected Mean by Land Use Category North West Level (a) Values (c) Comm. (c) Comm. (d) Resid. (c) Resid. (d) Renton Hill Metals (ug/L) Antimony 2 1 M 1,040 2.6-23 -- -- -- -- Arsenic 3 2 M 0.084 1-50.5 -- -- -- -- Beryllium 1 U 1 U 0.079 1-49 -- -- -- -- Cadmium 2 U 2 U 20.3 0.1-14 -- 0.4 -- 1.7 Chromium 12 9 M 81 1-190 -- 3.1 -- 11.5 Copper � t• M 2,660 1-100 29 27 33 53 Lead M -- 6-460 104 57 144 83 Mercury 0.1 U 0.1 U -- 0.6-1.2 -- -- -- -- Nickel 10 U 10 U -- 1-182 -- -- -- -- Selenium 1 1 U -- 2-77 -- -- -- -- Silver 3 U 3 U 15,600 0.2-0.8 -- -- -- -- Thallium 1 U 1 U -- 1-14 -- -- -- -- Zinc �M 11,100 10-2,400 226 149 135 288 Water Quality Standards (ug/L) (b) Arsenic (A) 360 360 (C) 190 190 Cadmium (A) 0.7 1.1 (C) 0.3 0.4 Chromium (A) 568.9 745.3 (C) 67.8 88.8 Copper (A) 4.2 5.8 (C) 3.2 4.2 Lead (A) 9.9 15.1 (C) 0.4 0.6 Nickel (A) 425.4 562.3 (C) 76.5 101.1 Silver 0.2 0.4 Zinc (A) 32.9 43.5 (C) 29.8 39.4 Data Qualifiers: U = undetected at specified detection limit; M = mean calculated from duplicate samples or analyses. (a) Model Toxics Control Act cleanup levels (method B; method A cleanup levels are the same as the state water quality standards). (b) WAC 173-201 A-030. Values shaded in black exceed the criteria for both chronic and acute toxicity. Water quality standards for arsenic, copper, chromium, lead, nickel, and zinc are hardness dependent. A = acute toxicity; C = chronic toxicity. (c) Nationwide Urban Runoff Program (U.S. EPA 1983). Samples collected at 28 sites across the country. (d) City of Seattle data from 1986 to 1988 (Merrill 1989 personal communication). LWOUTM.WQ1 B-7 Table 22. Contaminant concentrations in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to sediment quality guidelines and historical data (mg/kg dry weight) (continued). North Renton West Hill Sediment Quality Guidelines(a) Metro TPPS(b) Urban Street Dust(c) Cedar River Delta(d) Basin Outfall Basin Ouffall No-effect Lowest-effect Severe-effect Storm Drain Control Range Mean Range Mean Miscellaneous oxygenated compounds Benzoic acid 1.4 U 1.9 U - - <0.077-<0.089 <0.081 (e) Benzyl alcohol 0.70 U 0.96 U - - <0.0092-<0.011 <0.0098 (e) 4-Bromophenyl-phenylether 0.14 U 0.19 U bis(2-Chloroethoxy)methane 0.14 U 0.19 U - bis(2-Chloroethyl)ether 0.14 U 0.19 U 4-Chlorophenyl-phenylether 0.14 U 0.19 U - - 0.24 0.24 Dibenzofuran 0.09 J 0.15 J -- -- -- - <0.015-<0.018 <0.016 (e) Isophorone 0.14 U 0.19 U - 0.001 0.001 - - 2,2'-Oxybis(1-chloropropane) 0.14 U 0.19 U [=bis(2-Chloroisopropyl)etherl Pesticides Aldrin 0.007 U 0.010 U - 0.0020 0.29 - - <0.0005-<0.0016 <0.00074 (e) Alpha-BHC 0.007 U 0.010 U 0.0060 0.36 0.00006 0.00006 0.01-0.018 0.014 Beta-BHC 0.007 U 0.010 U 0.0050 0.75 Gamma-BHC(Lindane) 0.007 U 0.010 U 0.0002 0.0030 0.04 0.00007 0.00007 0.006-0.043 0.024 <0.0005 <0.0005 (e) Delta-BHC 0.007 U 0.010 U Alpha-chlordane 0.007 U 0.010 U 0.0050 0.0070 0.22 Gamma-chlordane 0.017 U 0.045 U 0.0050 0.0070 0.22 - - 4,4'-DDD 0.015 U 0.043 U 0.0080 0.22 0.006 0.006 0.005 0.005 <0.0008-<0.0009 <0.0008 (e) 4,4'-DDE 0.015 U 0.033 U 0.0050 0.68 0.002 0.001 <0.0006-<0.0007 <0.0006 (e) 4,4'-DDT 0.017 U 0.120 U 0.0070 0.43 0.0004 0.0001 - <0.0016-<0.0018 <0.0016 (e) �j Dieldrin 0.015 U 0.021 U 0.0006 0.0020 3.26 0.003 0.00009 -- -- <0.0006-<0.0007 <0.0006 (e) Endosulfan I 0.007 U 0.010 U - Endosulfan II 0.015 U 0.047 U " - Endosulfan sulfate 0.015 U 0.021 U - Endrin 0.015 U 0.035 U - Endrin aldehyde 0.015 U 0.021 U Endrin ketone 0.023 U 0.043 U - Heptachlor 0.007 U 0.010 U 0.0003 - <0.0008-<0.0009 <0.0008 (e) Heptachlor epoxide 0.007 U 0.025 U 0.0050 0.18 0.048 0.048 Methoxychlor 0.071 U 0.099 U - Toxaphene 0.71 U 2.00 U Polychlorinated biphenyls PCB-1016 0.15 U 0.39 U 0.0070 1.90 <0.008-<0.009 <0.008 (e) PCB-1221 0.30 U 0.42 U <0.031-<0.036 <0.033 (e) PCB-1232 0.15 U 0.53 <0.008-<0.009 <0.008 (e) PCB-1242 0.15 U 0.39 U - 0.013 0.003 <0.008-<0.009 <0.008 (e) PCB-1248 0.15 U 0.39 U 0.030 5.4 0.013 0.003 <0.008-<0.009 <0.008 (e) PCB-1254 0.25 0.98 0.060 1.2 0.095 0.45 <0.008-<0.009 <0.008 (e) PCB-1260 0.18 0.75 0.0050 0.86 0.032 0.23 - <0.008-<0.009 <0.008 (e) Total PCBs 1.3 3.9 0.010 0.070 19 0.15 0.69 - continued Table 22. Contaminant concentrations in sediment samples collected.in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to sediment quality guidelines and historical data (mg/kg dry weight) (continued). North Renton West Hill Sediment Quality Guidelines(a) Metro TPPS(b) Urban Street Dust(c) Cedar River Delta(d) Basin Outfall Basin Outfall No-effect Lowest-effect Severe-effect Storm Drain Control Range Mean Range Mean Phenolic compounds _ 4-Chloro-3-methyl phenol 0.28 U 0.39 U [=p-Chloro-m-cresol] 2-Chlorophenol 0.14 U 0.19 U 2,4-Dichiorophenol 0.42 U 0.58 U -- 2,4-Dimethylphenol 0.28 U 0.39 U 0.005 0.005 0.01-0.03 0.02 <0.0077-<0.0089 <0.0081 (e) 4,6-Dinitro-2-methylphenol 1.4 U 1.9 U -- -- - [=4,6-Dinitro-o-cresol] - 2,4-Dinitrophenoi 1.4 U 1.9 U 4-Methylphenol 0.71 0.46 - - <0.016-<0.018 <0.016 (e) 2-Methylphenol 0.14 U 0.19 U - - <0.0077-<0.0089 <0.0081 (e) 2-Nitrophenol 0.70 U 0.96 U - - - 4-Nitrophenol 0.70 U 0.96 U 0.11 0.11 Pentachlorophenol 0.70 U 0.96 U - - 0.12-3.4 1.8 <0.046-<0.054 <0.049 (e) Phenol 0.28 U 0.39 U -- -- 0.08-0.47 0.21 <0.016-<0.018 <0.016 (e) 2,4,6-Trichlorophenol 0.70 U 0.96 U 0.04 0.007 -- _ __ 2,4,5-Trichlorophenol 0.70 U 0.96 U -- - Chlorinated hydrocarbons 2-Chloronaphthalene 0.14 U 0.19 U 1,3-Dichlorobenzene 0.14 U 0.19 U 0.004 0.004 - <0.002-<0.003 <0.002 (e) 1,2-Dichlorobenzene 0.14 U 0.19 U 0.004 0.004 - <0.002-<0.003 <0.002 (e) 1.4-Dichlorobenzene 0.14 U 0.19 U 0.003 0.003 <0.002-<0.003 <0.002 (e) Hexachlorobenzene 0.14 U 0.19 U 2 2 <0.0092-<0.011 <0.0098 .r Hexachlorobutadiene 0.28 U 0.39 U 0.00008 0.00003 <0.015-<0.018 <0.016 (e) Hexachlorocyclopentadiene 0.70 U 0.96 U -- -- Hexachloroethane 0.28 U 0.39 U - <0.015-<0.018 <0.016 (e) 1,2,4-Trichlorobenzene 0.14 U 0.19 U <0.0047-<0.0054 <0.0049 (e) Phthalates Butylbenzylphthalate 1.3 1.2 0.46 0.022 0.2-35 6.2 <0.015-<0.018 <0.016 (e) Di-n-butylphthalate 0.46 0.64 1.2 0.12 0.18-2.4 0.98 <0.015-0.041 <0.021 (e) Diethylphthalate 0.14 U 0.19 U 0.043 0.015 0.16-0.89 0,41 <0.015-<0.018 <0.016 (e) Dimethyl phthalate 0.14 U 0.19 U - 0.015 0.004 0.78 0.78 <0.015-<0.018 <0.016 (e) bis(2-Ethylhexyl)phthalate 4.5 5.7 4.5 0.14 2.4-90 38 <0.016-0.078 <0.0282 (e) Di-n-octyl phthalate 0.14 U 0.19 U -- -- 0.23-0.97 0.54 <0.015-<0.018 <0.016 (e) Total phthalates 6.7 8.1 6.2 0.30 - - Organonitrogen compounds _ Carbazole 0.37 0.53 -- -- - 4-Chloroaniline 0.42 U 0.58 U - 3,3'-Dichlorobenzidine 0.70 U 0.96 U - 2,4-Dinitrotoluene 0.70 U 0.96 U - 2,6-Dinitrotoluene 0.70 U 0.96 U - - 2-Nitroaniline 0.70 U 0.96 U - 3-Nitroaniline 0.70 U 0.96 U 4-Nitroaniline 0.70 U 0.96 U ' Nitrobenzene 0.14 U 0.19 U n-Nitrosodiphenylamine(1) 0.14 U 0.19 U 0.005 0.003 0.76 0.76 <0.0092-<0.011 <0.0098 (e) n-Nitroso-di-n ro lamina 0.14 U 0.19 U - -- -- - continued Table 22. Contaminant concentrations in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfails, compared to sediment quality guidelines and historical data (mg/kg dry weight). North Renton West Hill Sediment Quality Guidelines(a) Metro TPPS(b) Urban Street Dust(c) Cedar River Delta(d) Basin Outfall Basin Outfall No-effect Lowest-effect Severe-effect Storm Drain Control Range Mean Range Mean Sample collection Date 04/27/93 04/27/93 04/14/82 04/20/82 -Time 1350 1205 -- -- Conventional pollutants Total solids(%) 35.81 29.15 -- 66.8 71.2 - - 7.95-90.4 87.4 Total organic carbon 3.47 3.70 1 10 0.6 0.2 - - 0.22-2.7 1.15 (%dry weight) Metals Antimony 1.0 1.3 -- - 0.4 0.3 0.4-2 0.8 0.41-0.72 0.56 Arsenic 16 13 6 33 20 18 11-47 25 2.5-5.8 3.7 Beryllium 0.3 U 0.4 -- -- 0.2 0.1 0.17-0.38 0.3 - Cadmium 2.9 3.4 0.6 10 0.3 0.1 0.6-2 1 0.04-0.07 0.05 Chromium 73 59 26 110 39 37 20-230 97 - -- Copper 80.3 79.4 16 110 35 14 31-260 93 16-19 17 Lead 207 207 - 31 250 91 20 90-1300 520 6.3-11 8.0 Mercury 0.2 0.2 - 0.2 2 0.2 0.06 0.02-0.18 0.06 0.024-0.053 0.038 Nickel 45 49 16 75 29 19 20-43 32 28-31 29.9 Selenium 0.3 U 0.4 -- -- 0.2 0.2 -- - - - Silver 19.8 1.0 U 0.1 0.08 0.01-0.5 0.1 0.094-0.16 0.11 Thallium 0.3 U 0.3 U - - -- 0.1 0.1 -- -- - -- Zinc 478 369 120 820 98 41.6 110-400 310 49-60 55 p Low molecular weight polycyclic aromatic hydrocarbons Naphthalene 0.14 U 0.19 U 0.047 0.005 - <0.015-<0.018 <0.016 (e) Acenaphthylene 0.14 U 0.19 J - 0.003 0.003 <0.015-<0.018 <0.016 (e) Acenaphthene 0.10 J 0.16 U -- -- 0.066 0.003 0.16-0.25 0.2 <0.015-<0.018 <0.016 (e) Fluorene 0.15 0.25 0.19 5.7 0.15 0.003 0.2-0.25 0.22 <0.015-<0.018 <0.016 (e) Phenanthrene 2.4 3.1 0.56 34 0.61 0.021 1.2-2.6 1.5 <0.016-59 <0.016 (e) Anthracene 0.29 0.36 0.22 13 0.077 0.005 0.24-0.6 0.36 <0.015-<0.018 <0.016 (e) 2-Methyl naphthalene 0.14 U 0.19 U -- -- -- -- -- <0.015-<0.018 <0.016 (e) Total LPAHs 3.36 4.44 -- -- 0.95 0.04 -- -- High molecular weight polycyclic aromatic hydrocarbons Benzo(a)anthracene 1.7 2.0 0.32 53 0.12 0.034 0.24-0.85 0.63 <0.016-0.03 <0.0185 (e) Benzo(a)pyrene 2.0 2.1 0.37 52 0.27 0.072 0.08-0.9 0.63 <0.015-<0.018 <0.016 (e) Benzo(b)fluoranthene 4.5 5.5 -- -- 0.90 0.052 -- <0.016-0.027 <0.018 (e) Benzo(k)fluoranthene -- -- 0.24 48 0.96 0.60 0.27-1.5 0.67 <0.015-<0.018 <0.016 (e) Benzo(g,h,i)perylene 0.81 0.79 0.17 11 0.33 0.037 -- <0.015-<0.018 <0.016 (e) Chrysene 2.5 3.0 0.34 16 0.33 0.10 0.21-1.3 0.86 <0.016-36 <0.02 (e) Dibenzo(a,h)anthracene 0.44 0.38 0,06 4.7 0.076 0.025 - - <0.015-<0.018 <0.016 (e) Fluoranthene 4.8 5.7 0.75 37 0.95 0.11 1.1-2.2 1.7 <0.016-0.12 <0.044 (e) Indeno(1,2,3-cd)pyrene 0.92 0.95 0.20 11 0.28 0.027 - <0.015-<0.018 <0.016 (e) Pyrene 2.4 3.2 0.49 30 0.85 0.16 0.44-2.4 1.6 <0.016-0.092 <0.036 (e) Total HPAHs 20 24 -- -- 5.1 1.2 - - -- Total PAHs 23 28 4.0 359 6.0 1.2 - - -- continued Table 20. Areal stormwater pollutant loading (lb/acre/yr) ranking by subbasin within the North Renton basin. Rankings are highest (1) to lowest (6) based on the calculated pollutant loadings for each subbasin shown in Figure 2. Overall Subbasin TSS TP SRP NH4 NO2+NO3 Cu Pb Zn FC Rank N1 4 2 1 3 5 2 1 2 4 2 N2 2 1 2 1 4 1 3 3 1 1 N3a 1 3 3 2 6 3 2 5 2 3 NO 3 5 6 4 3 5 4 4 5 5 N5 6 6 5 6 2 6 6 6 3 6 N6 5 4 4 5 1 4 5 1 6 4 a Rankings are based on pollutant loading calculated from the difference between station NR-4 (subbasins N3 + N5)and station NR-2(subbasin N5) b Rankings are based on pollutant loading calculated from the difference between station NR-5 (subbasins N4 + N6)and station NR-1 (subbasin N6) Table 21. Areal stormwater pollutant loading (lb/acre/yr) ranking by subbasin within the West Hill basin. Rankings are highest (1) to lowest (4) based on the calculated pollutant loadings for each subbasin shown in Figure 3. Overall Subbasin TSS TP SRP NH4 NO2+NO3 Cu Pb Zn FC Rank W1 6 6 1 4 2 6 6 6 4 6 W2 2 4 3 1 1 4 3 5 6 4 W3 5 5 4 3 4 5 5 3 1 5 W4 4 2 2 2 3 2 2 2 2 3 W5 1 1 — — — 1 1 1 5 1 W6 3 3 — — — 3 4 4 3 2 TSS: Total suspended solids TP: Total phosphorus SRP: Soluble reactive phosphorus NH4: Ammonia nitrogen NO2+NO3: Nitrite+nitrate nitrogen Cu: Copper " Pb: Lead Zn: Zinc FC: Fecal coliform bacteria 255B\T3TABLES Herrera Environmental Consultants B-19 Table 19. Stormwater pollutant concentrations and areal loadings arising from subbasins within the North Renton and West Hill drainage basins. North Renton Monitoring Stations West Hill Monitoring Stations NR-1 NR-2 NR-3 NR-4 NR-5 NR-6 WH-1 WH-2 WH-3 WH-4 Contributing Subbasin N6 N5 N2 N3+N5 N4+N6 N1 N3 (d) N4 (e) W4 W3 W2 W1 W5 W6 (c) Average pollutant concentrations for base flow and storm flow Total suspended solids(mg/L) 5 3 6 12.2 11.8 4 14 13 19 9 25 6 17 (a) 13 Total phosphorus(ug/L) 60 43 86 91 73 63 98 75 98 55 59 62 71 (a) 58 Soluble reactive phosphorus(ug/L) 10 13 17 25 16 23 26 16 20 17 13 24 18 Ammonia nitrogen(ug/L) 38 38 352 279 90 146 294 96 63 49 203 16 - 89 Nitrite+nitrate nitrogen(ug/L) 2,328 2,195 422 348 2,855 219 322 2,900 973 570 1,864 1,680 1,300 (b) 1,400 Copper(ug/L) 5.2 1.8 20.3 7.0 5.8 9.0 8.0 6.2 8.5 4.5 3.9 3.2 28.0 (a) 3.9 Lead (ug/L) 1. 4.6 3.2 6.8 9.7 9.9 7.6 11.0 10.7 9.6 6.1 6.8 2.7 12.0 (a) 5.2 Zinc (ug/L) 113 33 67 36 64 76 37 65 80 32 15 16 120 (a) 21 Fecal coliform bacteria(cfu/100 mL) 167 376 901 546 313 178 590 331 940 890 3 723 216 (b) 700 Total acres 154 453 34 676 228 55 294 228 114 95 30 337 92 67 Annual runoff(acre-feet) 284 632 74 1041 493 120 408 213 121 109 38 359 193 87 IF Average annual pollutant loading 00 Total suspended solids(lb/acre/yr) 17 7 35 39 30 22 53 32 34 19 49 11 97 46 Total phosphorus(lb/acre/yr) 0.30 0.16 0.51 0.38 0.43 0.37 0.36 0.19 0.28 0.17 0.20 0.18 0.40 0.20 Soluble reactive phosphorus(lb/acre/yr) 0.050 0.049 0.101 0.103 0.091 0.133 0.098 0.040 0.058 0.051 0.043 0.068 0.064 Ammonia nitrogen(lb/acre/yr) 0.19 0.14 2.08 1.17 0.53 0.87 1.11 0.24 0.18 0.15 0.70 0.04 0.31 Nitrite+nitrate nitrogen(lb/acre/yr) 11.66 8.32 2.50 1.45 16.77 1.30 1.21 7.36 2.81 1.78 6.42 4.86 7.41 4.93 Copper(lb/acre/yr) 0.026 0.007 0.120 0.029 0.034 0.053 0.030 0.016 0.024 0.013 0.013 0.009 0.160 0.014 Lead(lb/acre/yr) 0.023 0.012 0.040 0.040 0.058 0.045 0.042 0.027 0.028 0.019 0.023 0.008 0.070 0.018 Zinc (lb/acre/yr) 0.566 0.125 0.396 0.151 0.373 0.448 0.140 0.160 0.231 0.100 0.050 0.045 0.680 0.074 Fecal coliform bacteria(cfu/acre/yr) 4E+09 6E+09 2E+10 1 E+10 8E+09 4.8E+09 1.02E+10 3.82E+9 1 E+10 1 E+10 0E+00 1 E+10 5.54E+09 1 E+10 cfu= colony-forming units. Loading (lb/acre/yr) = annual runoff(acre-feet/yr)x pollutant concentration(mg/L)x 2.717/acre. Loading (lb/acre/yr) = annual runoff(acre-feet/yr)x pollutant concentration(ug/L)x 0.002717/acre. Loading(cfu/acre/yr) = annual runoff(acre-feet/yr)x pollutant concentration(cfu/100mL)x 12,336,192/acre. (a) Average of sampled collected from six stations at Sea-Tac International Airport during storm 6/9/93 (Herrera 1993b). (b) Average of eight airport samples from U.S.EPA NPDES group stormwater permit application database(U.S.EPA 1993a). (c) Average of stations W2,W3,and W4. (d) Difference between station NR-4 (subbasins N3+N5)and station NR-2(subbasin N5). (e) Difference between station NR-5(subbasins N4+N6)and station NR-1 (subbasin N6). 255A\SUBLBAYR.wgt Table 18. Average annual areal stormwater pollutant loading arising from the North Renton and West Hill drainage basins. Outfall North Renton West Hill Annual runoff(acre-feet) 1,490 708 Total acres 1,236 736 Total suspended solids(lb/acre/yr) 260 220 Total phosphorus(lb/acre/yr) 0.73 0.98 Soluble reactive phosphorus(lb/acre/yr) 0.10 0.06 Nitrite+nitrate nitrogen(lb/acre/yr) 0.87 1.20 Copper(lb/acre/yr) 0.07 0.04 Lead(lb/acre/yr) 0.09 0.09 Zinc(lb/acre/yr) 0.42 0.24 Fecal coliform bacteria(cfu/acre/yr) 1.07E+10 7.13E+09 Loading(lb/acre/yr)=annual runoff(acre-feet/yr)x pollutant concentration(mg/L)x 2.717/acre. Loading(lb/acre/yr)=annual runoff(acre-feet/yr)x pollutant concentration(ug/L)x 0.002717/acre. Loading(lb/acre/yr)=annual runoff(acre-feet/yr)x pollutant concentration(cfu/100mL)x 12,336,192/acre. cfu=colony-forming units 255A\OUTT-BAYR.wg1 B-17 Table 16. Stormwater pollutant loading (lb/yr) ranking by subbasin within the North Renton basin. Rankings are highest (1) to lowest (6) based on the calculated pollutant loadings for each subbasin shown in Figure 2. Overall Subbasin TSS TP SRP NH4 NO2+NO3 Cu Pb Zn FC Rank N1 5 5 4 5 6 4 4 5 6 6 N2 6 6 6 2 5 2 6 6 4 5 N3a 1 1 1 1 4 1 1 3 1 1 NO 2 2 3 3 2 3 2 4 3 2 N5 3 3 2 4 1 6 3 2 2 3 N6 4 4 5 6 3 5 5 1 5 4 a Rankings are based on pollutant loading calculated from the difference between station NR-4(subbasins N3 + N5)and station NR-2(subbasin N5). b Rankings are based on pollutant loading calculated from the difference between station NR-5 (subbasin N4 + N6)and station NR-1 (subbasin N6). Table 17. Stormwater pollutant loading (lb/yr) ranking by subbasin within the West Hill basin. Rankings are highest (1) to lowest (6) based on the calculated pollutant loadings for each subbasin shown in Figure 3. Overall Subbasin TSS TP SRP NH4 NO2+NO3 Cu Pb Zn FC Rank WI 3 2 1 3 1 2 3 3 1 2 W2 6 6 4 1 3 6 6 6 6 6 W3 5 5 3 4 4 4 4 4 3 5 W4 2 3 2 2 2 3 2 2 2 3 W5 1 1 — — — 1 1 1 4 1 W6 4 4 — — — 5 5 5 5 4 TSS: Total suspended solids TP: Total phosphorus SRP: Soluble reactive phosphorus NH4: Ammonia nitrogen NO2+NO3: Nitrite+nitrate nitrogen Cu: Copper Pb: Lead Zn: Zinc FC: Fecal coliform bacteria 255B\T3TABLES Herrera Environmental Consultants B-16 Table 15. Stormwater pollutant concentrations and total loadings arising from subbasins within the North Renton and West Hill drainage basins. North Renton Monitoring Stations West Hill Monitoring Stations NR-1 NR-2 NR-3 NR-4 NR-5 NR-6 WH-1 WH-2 WH-3 WH-4 Contributing Subbasin N6 N5 N2 N3+N5 N4+N6 N1 N3 (d) N4 (e) W4 W3 W2 W1 W5 W6 (c) Average pollutant concentration for base flow and storm flow Total suspended solids(mg/L) 5.45 2.5 6 12.2 11.75 3.75 14.1 12.7 18.5 8.9 24.5 5.5 17 (a) 13 Total phosphorus(ug/L) 59.5 43 86 90.5 72.5 62.5 98 75 98 55 58.5 62 71 (a) 58 Soluble reactive phosphorus(ug/L) 10 13 17 24.5 15.5 22.5 26 16 20 16.5 12.5 23.5 18 Ammonia nitrogen(ug/L) 37.5 38 352 279 89.5 146 294 96 63 48.5 202.5 15.5 89 Nitrite+nitrate nitrogen(ug/L) 2,328 2,195 422 348 2,854 219 322 2,900 973 570 1,864 1,680 1,300 1,400 Copper(ug/L) 5.15 1.75 20.25 7 5.8 8.95 8 6.2 8.45 4.5 3.9 3.2 28 (a) 3.9 Lead (ug/L) 4.6 3.15 6.8 9.65 9.85 7.55 11 10.7 9.6 6.1 6.8 2.7 12 (a) 5.2 Zinc (ug/L) 113 33 67 36 63.5 75.5 36.7 64.5 80 32 14.5 15.5 120 (a) 21 Fecal coliform bacteria(cfu/100 mL) 167 376 901 546 313 178 590 331 940 890 3 723 216 (b) 70 Total acres 154 453 34 747 228 55 294 228 114 95 30 337 92 67 Annual runoff(acre-feet) 179 472 74 880 213 119 408 213 78 76 22 252 193 87 Average annual pollutant loading v, Total suspended solids (lb/yr) 2,651 3,206 1,206 29,170 6,800 1,212 15,630 7,350 3,921 1,838 1,464 3,766 8,914 3,070 Total phosphorus(lb/yr) 29 55 17.3 216 42 20 108.6 43.4 21 11 3.5 42 37 14 Soluble reactive phosphorus (lb/yr) 4.9 17 3.4 59 9.0 7.3 28.8 9.3 4.2 3.4 0.75 16 4.3 Ammonia nitrogen(lb/yr) 18 49 70.8 667 52 47 325.9 55.6 13.4 10 12.1 10.6 - 21 Nitrite+nitrate nitrogen(lb/yr) 1,132 2,815 84.8 832 1,652 71 356.9 1678.3 206 118 111 1,150 682 330 Copper(lb/yr) 2.5 2.2 4.1 17 3.4 2.9 8.9 3.6 1.8 0.93 0.23 2.2 14.7 0.92 Lead (lb/yr) 2.2 4.0 1.4 23 5.7 2.4 12.2 6.2 2.0 1.3 0.41 1.8 6.3 1.2 Zinc (lb/yr) 55 42 13.5 86 37 24 40.7 37.3 17.0 6.61 0.87 10.6 63 5.0 Fecal coliform bacteria(cfu/yr) 4E+11 2E+12 8E+11 6E+12 8E+11 3E+11 3E+12 9E+11 9E+11 8E+11 8E+08 2E+12 5E+11 8E+10 cfu = colony-forming unit. Loading (lb/yr) = annual runoff(acre-feet/yr)x pollutant concentration(mg/L) x 2.717. Loading (lb/yr) = annual runoff(acre-feet/yr)x pollutant concentration(ug/L)x 0.002717. Loading (lb/yr) = annual runoff(acre-feet/yr)x pollutant concentration(cfu/100 mL)x 12,336,192. (a) Average of samples collected from six stations at Sea-Tac International Airport during 6/9/93 storm (Herrera 1993b). (b) Average of eight airport samples from U.S. EPA NPDES group stormwater permit application database(U.S.EPA 1993a). (c) Average of stations W2,W3,and W4. (d) Difference between station NRA (subbasins N3+N5)and station NR-2 (subbasin N5). (e) Difference between station NR-5 (subbasins N4+N6) and station NR-1 (subbasin N6). 255A\SUBLBYR.wg1 Table 13. Average annual runoff volume estimates for North Renton and West Hill drainage basins. Subbasin Area(acres) Runoff(ac-ft/yr) North Renton N1 55 119 N2 34 74 N3 294 408 N4 228 213 N5 452 472 N6 154 179 N7 19 25 Total 1,236 1,490 West Hill W1 337 252 W2 30 22 W3 95 76 W4 115 78 W5 92 193 W6 67 87 Total 736 708 Table 14. Average annual stormwater pollutant loading arising from the North Renton and West Hill drainage basins. Outfall North Renton West Hill Annual runoff(acre-feet) 1,490 708 Total suspended solids (lb/yr) 327,100 158,500 Total phosphorus (lb/yr) 900 720 Soluble reactive phosphorus (lb/yr) 120 44 Nitrite+nitrate nitrogen (lb/yr) 1,100 880 Copper (lb/yr) 87 29 Lead (lb/yr) 110 66 Zinc (lb/yr) 520 180 Fecal coliform bacteria(cfu/yr) 1.3E+13 5.2E+12 Loading(lb/yr)=annual runoff(acre-feet/yr)x pollutant concentration(mg/L x 2.717 Loading(lb/yr)=annual runoff(acre-feet/yr)x pollutant concentration(µg/L x 0.002717 Loading(lb/yr)=annual runoff(acre-feet/yr)x pollutant concentration(cfu/100 mL)x 12,336,192. cfu=colony-forming units 255B\T3TABLES Herrera Environmental Consultants B-14 Table 11 Exceedances of water quality standards for copper, lead, and zinc. Station Exceedance of Water Quality Standards WH-1 Lead (c) WH-2 Copper (a,c), lead (c), zinc (a,c) WH-3 Copper(c), lead (c) WH-4 Lead (c) NR-1 Copper(c), lead (c), zinc (a,c) NR-2 Lead (c), zinc (a,c) NR-3 Copper(c), lead (c), zinc (a,c) NR-4 Copper(a,c), lead (a,c), zinc (a,c) NR-5 Copper(a,c), lead (a,c), zinc (a,c) NR-6 Copper(a,c), lead(a,c), zinc (a,c) a= acute toxicity; c=chronic toxicity Table 12. Comparison of metals concentrations in stormwater samples collected from the North Renton and West Hill drainage basins (µg/L). North Renton Basin West Hill Basin Range Average Range Average Base flow samples Copper 1.0 - 34.7 8.8 <1 - 9.9 3.9 Lead 0.6 - 10.0 2.9 0.5 - 10.1 5.6 Zinc 18 - 168 62 8.0 - 91 30 Stormwater samples Copper 2.5 - 12.7 9.4 4.3 - 16 8.1 Lead 4.5 - 19.1 12 3.5 - 33 12 Zinc 47 - 114 65 16 - 90 51 255B\T3TABLES Herrera Environmental Consultants B-13 Table 27. Summary of results for selected parameters measured in water samples collected from North Renton and West Hill storm drains. Observed ange Concentration in Hunoff North Renton Basin Exceedances of Water Quality Criteria(a) in Concentration(b,c) from Other Urban Areas(b,c) 1 3 4 RAC 6 u a Base Storm(d) Residential Commercial Comments Total suspended solids (i) (i) (i) (i) (i) (i) (i) 0.8-4.8 3.5-23 7-220 (g) 8-108 (g) Exceedances of state water quality (1.9) (22) (101) (46) standards were observed at most pH S 6.93-7.37 6.03-7.6 5.8-7.6 (a) 3.4-7.9 (a) stations,particularly during (7.19) (7.17) (6.7) (6.7) storm events for the following Fecal coliform S B,S B,S S B,S S S 6-112 300-1,730 1-66,000 (e) 1-19,000 (a) parameters: fecal coliform bacteria, (59) (770) (1,200) (645) total P,Cu,Pb,and Zn. With the Total phosphorus S S B,S B,S S B S 33-110 51-223 95-4,326 (f) 69-603 (f) exception of fecal coliform bacteria (57) (96) (383) (201) and ammonia,the average Ammonia 12-501 59-422 0-7,200 (e) 0-6,500 (a) concentrations of most pollutants in (183) (172) (100) (200) runoff from the North Renton basin Copper S B,S S S B,S S 1.0-34.7 2.5-12.7 5-90 (g) 4.5-140 (g) are one-tenth to one-half the concentrations (8.8) (9.4) (53) (27) reported in runoff from other urban areas. Lead B,S B,S B,S S S B,S S 0.6-10.0 4.5-19.1 8-150 (g) 10-6,000 (g) Average fecal coliform counts are (2.9) (12) (83) (57) comparable to those measured in Zinc B,S S S S S S S 18-168 47-114 40-490 (g) 43-10.100 (g) other urban areas. Ammonia (62) (65) (288) (149) concentrations are greater than Total petroleum hydrocarbons <250 <250-1,570 <1,000-43,000 (h) <1,000-28,000 (h) typically found in urban runoff. (250 (850) (5,400) (8,800) Observed ange Concentration in Runoff West Hill Basin Exceedances of Water Quality Criteria(a) in Concentration(b,c) from Other Urban Areas(b,c) W 1 WH2 WH3 WH4 URfa-F Base Storm(d) Residential Commercial Comments Total suspended solids (i) (i) (i) (i) (i) 3.0.37 11-81 7-220 (g) 8-108 (g) Exceedances of state water quality (16) (27) (101) (46) standards were observed at most pH S S S S 7.17-7.67 6.27-7.25 5.8-7.6 (a) 3.4-7.9 (a) stations,particularly during 00 (7.36) (6.32) (6.7) (6.7) storm events for the following Fecal coliform B,S B,S S B,S S 6-580 960-1,580 1-66,000 (a) 1-19,000 (e) parameters: fecal coliform bacteria, (223) (1,160) (1,200) (645) total P,Cu,Pb,and Zn. With the Total phosphorus B,S B,S B B,S S 52-121 38-223 95-4,326 (f) 69-603 (f) exception of fecal coliform bacteria, (76) (124) (383) (201) the average concentrations of Ammonia 21-102 <10-422 0-7,200 (e) 0-6,500 (e) most pollutants in runoff from (52) (110) (100) (200) the West Hill basin are one-tenth to Copper S S S <1-9.9 4.3-16 5-90 (g) 4.5-140 (g) one-half the concentrations reported (3.9) (8.1) (53) (27) in runoff from other urban areas. Lead B,S S B,S S S 0.5-10.1 3.5-33 8-150 (g) 10-6,000 (g) Average fecal coliform counts are (5.6) (12) (83) (57) comparable to those measured Zinc S S 8.0-91 16-90 40-490 (g) 43-10.100 (g) in other urban areas. (30) (51) (288) (149) Total petroleum hydrocarbons <250-280 <250-780 <1,000-43,000 (h) <1,000-28,000 (h) (260) (325) (5,400) (8,800) (a) Exceedances of either acute or chronic toxicity criteira for aquatic life. B=base flow;S=stormwater. (b) Concentrations reported in units of ug/L for metals,TSS,and nutrients;cfu/100 mL for fecal coliform;and standard pH units. (c) Reported range in concentration. Mean shown in parentheses. (d) Includes outfall monitoring results. (e) Residential and commercial areas in Bellevue(USGS 1985). (f) U.S.EPA(1983), (g) Merrill(1989 personal communication). (h) Draft NPDES monitoring data from Bellevue(1993). (i) No water quality standard available. 255A\PARAMSUM Table 26. Stormwater monitoring data for the Paccar site. (a) Water Quality Station SW-3(b) Station SW-4(c) Upstream Station (d) Standards(e) Min Max , Mean n Min Max Mean n Min Max Mean n Acute Chronic Metals (ug/L) Arsenic 50 U 50 U 50 U 2 50 U 62 56 2 50 U 50 U -- 2 360 190 Chromium 1 U 24 10 6 1 U 46 13 5 21 40 30 2 560 67 Copper 5 45 19 6 7 73 22 5 23 38 30 2 4.1 3.1 Lead 1 U 47 17 6 5 U 78 21 5 1 U 1 U 1 U 2 9.6 0.4 Nickel 2 23 21 6 3 35 14 5 80 U 80 U 80 U 2 420 46 Zinc 11 170 85 6 20 200 71 5 150 160 155 2 32 29 Organic compounds (ug/L) PCBs 1 U 1 U 1 U 2 1 U 1 U 1 U 2 1 U 1 U 1 U 2 2 0.014 Total petroleum hydrocarbons 1,000 U 1,000 U 1,000 U 1 2,000 2,000 2,000 1 2,000 2,000 2,000 1 -- -- Benzene 1 U 1 U 1 U 2 1 U 1 U 1 U 2 1 U t U 1 U 2 Vinyl chloride ND ND ND 2 ND ND ND 2 ND ND ND 2 U Undetected at specified detection limit; ND= not detected,detection limit not reported;n = number of samples. (a) Samples collected between March 1990 and March 1992(Peplinski and Finn 1992 personal communication; Kuroiwa et al. 1991 personal communication). N (b) Drainage ditch at northwestern corner of site. I (c) Storm drain at northern end of site. (d) Background station. Samples collected from offsite storm drain that enters at southeast corner of Paccar property (see Figure 14). (e) Water quality standards for metals are based on hardness (25 mg/L as CaCO3 assumed). P!„"" 1 Table 25. Stormwater monitoring data for the Boeing Renton plant site. (a) Water Quality Standards (d) MTCA Urban Station 001 (b) Station 017(c) Acute Chronic Method B (e) Runoff Conventional pollutants(mg/L) pH (standard units) 7.4 7.7 -- -- -- -- Biochemical oxygen demand 7.1 15.3 -- - -- 9.3 (f) Chemical oxygen demand 41.1 34.3 -- -- - 57 (fl Total suspended solids 4.4 50.8 - - -- 59 (g) Total nitrogen 0.899 0.381 - -- -- -- Total Kjeldahl nitrogen 1.29 0.572 - - -- 1.18 (f) Total phosphorus = -- - -- 0.201 (f) Bromide 0.1 U NA -- -- -- -- Total residual chlorine 0.05 NA - -- -- -- Fluoride 0.62 NA - -- -- -- Sulfate 7.56 NA -- -- -- - Sulfide 0.05 U NA - -- -- -- Sulfite 0.3 NA -- -- -- -- Surfactants 0.2 NA -- -- -- -- Cyanide 0.01 U NA -- - 52 -- Metals(ug/L) Aluminum 450 NA -- -- - -- Cadmium ® NA 0.7 0.33 20.3 1.3 (g) Chromium 4.8 NA 560 67 162,000 11.7 (g) Copper NA 4.1 3.1 2,660 75 (g) Iron 860 NA - - -- -- Lead 41 NA 9.6 0.4 -- 73 (g) .:::............. :...... Magnesium 980 NA -- - - - Nickel 3.1 NA 420 46 1,100 -- Silver NA 0.2 -- 15,600 -- Titanium 5 B NA -- -- -- -- Zinc NA 32 29 16,500 290 (g) Organic compounds (ug/L) Acetone NA <8 - -- -- -- Benzoic acid 1.8 NA - -- -- -- Bis(2-ethylhexyl)phthalate 2.9 NA -- -- 3.56 4-62 (f) 2-Butanone NA 7 -- - -- Di-n-butyl phthalate 0.6 NA -- -- 2,910 0.5-11 (f) Chloroform 1.4 NA -- -- 283 0.2-12 (f) 4-Methyl-2-pentanone 2.6 NA -- - - -- Phenols 0.01 U NA -- - -- 1-13 (f) 1,1,2-trichlorotrifluoroethane 4.9 NA -- -- - - U Undetected at specified detection limit; B = analyte detected in blank sample; NA = not analyzed. Values shaded in gray exceed chronic toxicity criteria for aquatic life. Values shaded in black exceed both chronic and acute toxicity criteria. For total phosphorus,values shaded in black exceed recommended thresholds for discharges to lakes. (a) 24-hour flow-weighted composite collected March 13, 1993 Burin 0.47-inch rainstorm. (Babich 1993 personal communication). (b) Station 001 located at manhole in 48-inch drain on Lake Washington Boulevard (same as basin N1 in Figure 2). (c) Station 017 located in drain discharging to Cedar River that is reported to be representative of airport runoff. (d) Water quality standards for metals are based on hardness(25 mg/L as CaCO3 assumed). (e) Model Toxics Control Act method B cleanup levels for surface water. (f) Results from the NURP study (U.S. EPA 1983). (g) Samples collected from industrial areas in Seattle between 1986 and 1988 (Merrill 1989 personal communication). 255A\BOEING B-26 Table 24. North Renton and West Hill drainage basin Illicit connection survey results. (a) Fecal Total Hach Field Parameters Coliform Petroleum Dissolved Specific Flow Bacteria Hydrocarbons Temperature Turbidity Oxygen Conductance Chlorine Copper Detergent Phenols Station Subbasin Date Time (gpm) (cfu/100mL) (mg/L) (degrees C) (NTU) pH (mg/L) (umhos/cm) (mg/L) (mg/L) (mg/L) (mg/L) North Renton basin 07,E7.2 N4 5/13/93 1050 1.5 72 NA 14.5 1.9 7.23 7.9 261 0.3 0 0 0 08,138-2 N6 3/04/93 No flow 12,D3-3 N1 5/14/93 No flow 12,D3-6 NI 5/14/93 0 NA 34 J NA 14.5 9.6 6.67 5.3 165 0 0 0 0 OM 12,D5-2 N2 5/14193 1505 No flow 12,D6-2 N2 5/14/93 0950 65 <2 <0.25 15.1 161 6.67 0.7 1287 0 0 0 0 12,E2-3 N4 5/14/93 1030 270 6 J NA 12.8 2.8 7.42 6.7 315 0 0 0 0 12,F5-6 N3 5/13/93 1435 750 4 NA 15.9 1.8 7.38 6.9 322 0.1 0 0 0 12,G5-15 N5 5/13/93 1150 No flow 12,H2-2 N4 5/13/93 0945 3.5 <2 NA 12.8 8.6 7.87 9.2 833 0 0 0 0 12,H6-6 N5 5/13/93 1305 1.2 12 J NA 13.2 1.8 7A8 7.3 203 0.2 0 0 0 13,B3-2 N6 5/14/93 No flow 13,B4-8 NS 5/13/93 1130 No flow 13,B6-2 N5 5/13/93 1220 0.7 <2 NA 12.5 0.98 6.93 8.1 122 0 0 0 0 17,F2-3 N3 5/13/93 1405 1.2 1180 NA 14.3 3.3 7.63 8.1 375 0.1 0 0 0 17,F2-6 N3 3/04/93 No flow West Hill basin 11,B6-16 W4 5/05/93 1030 12 420 NA NA 34 J 6.92 NA 223 0.2 0 0 0 11,C6-6 W4 5/13/93 0810 30 38 J NA NA 1.97 6.75 NA 261 0 0 0 0 S.124th culvert W3 5/13/93 0815 15 <2 NA NA 2.1 7.11 NA 224 0 0 0 0 S.123rd ravine W3 5/13/93 0825 4.5 <2 NA NA 6.8 7.00 NA 256 - 0 16,D4-11 W2 5/13/93 1530 No flow 11,04-24 W4 5/13/93 No flow 11,D8-12 W3 5/05/93 1250 0.8 200 J NA NA 3.2 6.73 NA 245 0.1 0 0 0 11,E8-3 W3 3/04/93 No flow Taylor Ave.ravine W3 5/13/93 825 35 860 NA NA 1.8 7.01 NA 294 0 0 0 0 15,G4-2 W1 5/05/93 0835 44 2200 J NA NA 3.9 6.71 NA 207 0 0 0 0 15,G4-11 W1 3/04/93 No flow 15,1­14-5 W1 5/05/93 0.8 NA NA NA 4.3 6.84 NA 288 0 0 0 0 16,B4-3 W1 5/13/93 0750 40 <2 NA NA 8.3 6.81 NA 113 0 0 0 0 128th ravine W1 5/05/93 1505 560 64 NA NA 5.1 6.89 NA 280 0.3 0 0 0 J =Estimated value. NA =Not analyzed. cfu =colony-forming units. NTU =nephelometric turbidity units. (a) See Figures 2 and 3 for sample station locations. 255AULLCON.wg1 Table 23. Concentrations of miscellaneous organic compounds detected in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to historical data and marine sediment criteria (mg/kg dry weight). Carbazole Dibenzofuran 4-Methylphenol North Renton outfall 0.37 0.09 0.71 West Hill outfall 0.53 0.15 0.46 Lake Washingtona Reference stations <0.4-<2 <0.03-<0.4 -- Quendall terminals <1.2-<5.4 0.12-7.9 -- J.H. Baxter property 450-480 580-2,200 -- Puget Soundb <0.008-0.110 <0.008-0.032 <0.008-<0.068 Marine sediment criteria -- 0.54 0.67 a Range of concentrations in four sediment samples collected from Lake Washington at each of the following sites located 2 miles north of the North Renton outfall(Ecology 1992c): Reference stations(500 to 1,500 feet off the east shore) Quendall terminals(adjacent to a site contaminated by a small creosote refinery) J.H.Baxter property(adjacent to a site contaminated by a wood treating facility) b Range of concentrations in marine sediment samples that were collected from Puget Sound at 50 stations for the 1989 Puget Sound ambient monitoring program(Tetra Tech 1990). c Washington state marine sediment criteria (WAC 173-201); the dibenzof Iran criterion is normalized for the mean organic carbon content of outfall sediments(3.6 percent). 255B\T3TABLES Herrera Environmental Consultants B-24 Table 22. Contaminant concentrations in sediment samples collected in Lake Washington offshore of the North Renton and West Hill storm drain outfalls, compared to sediment quality guidelines and historical data (mg/kg dry weight) (continued). Data qualifiers: U Analyte not detected at specified detection limit. J Estimated value. (a) Severe-effect levels for organic compounds are based on an average organic carbon content of 3.6 percent(Ontario 1992/93). (b) Arithmetic mean concentrations in sediment samples collected from Lake Washington adjacent to four storm drain outfalls and at two near-shore control stations for the toxicant pretreatment planning study JPPS)(Metro 1984b). (c) Samples collected at 14 stations in Bellevue and south Seattle,WA(Galvin and Moore 1982). (d) Data source: Golder(1992). (e) Detection limit(s)used in calculating mean. 255A\LWOUTSO.WQ 1 i tJ W APPENDIX C Hydrolq.gic Analysis APPENDIX C Hydrologic Analysis APPENDIX C Hydrologic Analysis HYDROLOGIC ANALYSIS LAKE WASHINGTON POLLUTION ABATEMENT PROJECT Prepared by R.W. Beck and Associates 2101 Fourth Avenue, Suite 600 Seattle, WA 98121-2375 Prepared for Herrera Environmental Consultants 1414 Dexter Avenue North, Suite 200 Seattle, WA 98109 and City of Renton Department of Public Works 200 Mill Avenue South Renton, WA 98055 October 1993 Table 28: Summary of Existing Public Education Programs. City of Ron= Kina Cwnty Washinaton State Soatde Bellevue Surface Water Solid Fire SWM(a) Health WSU Metro Ecology PSWCA(b) Dept Environ. Aquarium Business Water Waste Dept. Extens. Wildlife Ed.Dept Partners Topics Addressed Policy/Requiations. X X X X X X X X X X Aquifer protection X X Drinking water q"ity X X Geology X Water conservation X X X X Recycling X X X X X X X Hazardous materials/waste handling X X X X X X X X Ahemate products X X X X X X X &Wasteization X X X X X X X lizer use X X o X X X X X X X X X X X X X X Watershed issues X X X X X X X X X Habitat issues X X X X X X Available Programs/Products Printed material c X X X X X X X X X S' na a interpretive displays X Guided tours X Curriculum X X X Workshops X X X X X X X Volunteer X X X Inspections/surveys X X X X X X X (a) Surface Water Management Division. (b) Puget Sound Water Quality Authority. (c) Includes brochures,newsletters,booklets,audioNisual material. Table 29. Average pollutant removal efficiencies for selected stormwater treatment technologies. Pollutant Removal Efficiency(percent) (e) Treatment Total Chemical Fecal Technology Suspended Total Total Oxygen Oil and Coliform Solids Phosphorus Nitrogen Demand Copper Lead Zinc Grease Bacteria Biofiltration swale 60 20 10 25 60 a 70 60 50 b 0-40 b Vegetated filter stri 65 40 40 40 60 a 45 60 NA NA Compost filter 95 c 40 c 56 c 90 c 67 c NA 88 c 87 c NA to Oil/water o separator 15 5 5 5 5 15 5 40-80 d NA Sediment trap 16-60 b 30-50 b 20-30 b NA 10-30 b 16-50 b 10-30 b 20-40 b 20-74 b Catch basin insert NA NA NA NA NA NA NA NA NA Wet and 60 45 35 40 60 a 75 60 NA NA (a) Copper removal efficiency assumed to be similar to zinc. (b) Brown and Caldwell(1993). (c) W&H Pacific(1993). (d) Estimate based upon size distribution of oil globules in runoff from oil refineries (RPA 1989). (e) U.S.EPA(1993b). NA Data not available. 255Q\RENTEPA1.wg1 Table 30. Information on permitting, regulatory compliance, cost, and urban applicability of selected structural controls. Ecology King County Average Annual Permitting Accepted Accepted Average Operation and Urban Applicabilit Treatment Method Required Method Method Capital Costs Maintenance cost North Renton West Hill Biofiltration Swale No Yes Yes $4.50-50 per linear foot a $0.5-1 per linear foot a Medium Medium Vegetated filter strip No Yes Yes $400-11,300 per acre a $100-800 per acre a Medium Medium Approximately $8,000-12,000 per $500-700(cost to Compost filter No Experimental Experimental drop-in vault b replace filter) (b High Medium Oil/water $15,000-20,000 per acre $5-40 per acre (a) separator No Yes Yes of contributing area a of contributing area High Medium $10,000-15,000 per acre $500 per acre td Sediment trap No Yes Yes of contributing area c of contributing area High Medium Catch basin Approximately$350 (d) - insert No Experimental Experimental $1,500 eper filter insert Approximately$150-500 High Medium $0.5-1.0 per cubic foot $0.015-0.03 per cubic foot Wet and No Yes Yes of storage capacity a of storage capacity a Medium Low (a) U.S. EPA(1993b). (b) W&H Pacific(1993). (c) Brown and Caldwell (1993). (d) Stormwater Services (1994). (e) Enviro-drain (1994). (f) Annual operation and maintenance costs will depend on the number of times each insert filter must be replaced. 255Q\TRTMINFO.wgl Table 31. Estimated cost of the recommended pollution abatement program for the Renton/Lake Washington study area. Staff Activities Cost (FTE) (a) Program Development (initial startup) Surface Water Utility Coordination with other departments Program Coordinator Development of technical resources Ordinance development Development of record-keeping system Training 0.5 Maintenance Department Supervisor Coordination with Surface Water Utility 0.01 Development of maintenance procedures 0.01 Crews Training (3 days each, 4 crew members) 0.05 Equipment pH meter $250 Conductivity meter $250 Thermometers $50 Other City Departments Technical assistance and coordination Fire Department 0.004 Solid Waste Utility 0.004 Sewer Utility 0.004 Water Utility 0.004 Land Use Program 0.01 Implementation (approximate annual cost) Technical assistance and program management Surface Water Utility Program oversight 0.5 Program Coordinator Record-keeping Maintenance of technical resources Coordination Business inspections (North Renton &West Hill basins) 0.1 Other Departments Maintenance Supervisor Coordination meetings 0.004 Fire Department Coordination meetings 0.004 Solid Waste Utility Coordination meetings 0.004 Sewer Utility Coordination meetings 0.004 Water Utility Coordination meetings 0.004 Land Use Program Coordination meetings 0.004 Compliance inspections 0.004 North Renton &West Hill basins 0.05 continued B-32 Table 31. Estimated cost of the recommended pollution abatement program for the Renton/Lake Washington study area (continued). Staff Activities Cost (FTE) (a) Storm Drain Inspection/Maintenance (North Renton and West Hill basins) Maintenance Department Supervisor Scheduling and oversight 0.02 Crews City drainage system inspections 0.05 (1/month in winter) Privately owned drainage system inspections 0.04 (annual) Training (1 day per year, 4 crew members) 0.02 Surface Water Utility Program Coordinator Technical assistance, enforcement 0.01 Illicit Connection Surveys (North Renton and West Hill basins) Maintenance Department Supervisor Scheduling&coordination 0.02 Crews Sampling&dye testing 0.1 Surface Water Utility Drainage system map review 0.02 Program Coordinator Sampling 0.1 Data review&analysis 0.02 Enforcement 0.02 Laboratory analysis Fecal coliform bacteria($30/sample) (20 samples per problem area) $3,000 Public Education (citywide) Surface Water Utility Storm drain stenciling 0.1 School program 0.02 Workshops 0.02 Summary of estimated program costs. Surface Water Maintenance Department Land Use Utility Supervisor Crews Compliance Other Coord. Officer Departments(b) Program Development 0.5 0.02 0.05 0.014 0.004 Implementation Technical assistance program management 0.6 0.004 0 0.054 0.004 Storm drain inspection&maintenance 0.01 0.01 0.11 0 0 Illicit connection surveys 0.16 0.02 0.1 0 0 Public education 0.14 0 0 0 0 TOTAL 1.41 0.054 0.26 0.068 0.008 (a) FTE = full-time equivalent. (b) Fire Department, Solid Waste Utility, Sewer Utility, and Water Utility. B-33 Table of Contents Section I Introduction II Study Area Location III Methodology a. Subbasin Delineation b. Runoff Curve Numbers C. Precipitation Data d. Computations IV. Results Tables 1. Study Area Monitoring Stations 2. Runoff Curve Numbers for Land Uses 3. Current Land Use Summary 4. Annual Stormwater Runoff Volumes Appendices A. Annual Runoff Volume Computations B. Excerpt from Sea Tac Master Drainage Plan on Development of Representative Year of Rainfall HYDROLOGIC ANALYSIS LAKE WASHINGTON POLLUTION ABATEMENT PROJECT I. INTRODUCTION A hydrologic analysis was performed on the North Renton and West Hill drainage basins to predict the average annual stormwater runoff volumes at ten water quality monitoring sites selected by Herrera Environmental Consultants as part of the Lake Washington Pollution Abatement Project for the City of Renton. The annual runoff volumes will be used by Herrera to predict average annual pollutant loadings at these locations. This work was authorized by an engineering agreement between Herrera Environmental Consultants and R. W. Beck and Associates dated April 19, 1993. The Soil Conservation Service (SCS) runoff curve number method was used to estimate the annual runoff volume. The SCS curve number method estimates runoff volume was based on several parameters, including basin area, precipitation, and runoff curve numbers. These parameters, the methodology used in this analysis, and the analysis results are described in the following sections. 11. STUDY AREA LOCATION The study area consists of the North Renton and West Hill drainage basins. Figures 5 and 6 in the main body of the report illustrate the North Renton and West Hill basin boundaries, respectively. The North Renton basin is located near the southeast tip of Lake Washington and is bisected by I-405. The West Hill drainage basin is located in west Renton at the southerly tip of Lake Washington. The West Hill basin is bisected by Rainier Avenue South and includes the westerly portion of the Renton Municipal Airport. III. METHODOLOGY The procedure used to predict the average annual runoff volume included: 1) Defining the area (subbasin boundary) tributary to each monitoring station and determining the subbasin area in acres. 2) Defining runoff curve numbers for each subbasin by investigating land use and soils. 3) Defining an average (representative) year of precipitation. Hydrologic Analysis Page 2 4) Manipulating the representative year of rainfall into a series of rainfall events and computing the average annual runoff volume using SCS curve number equations. This procedure is used to estimate runoff volume produced by storm events. It does not directly account for base flows. The drainage systems for all subbasins, except West Hill basin W1, consists of storm drain pipes and are believed to have negligible base flows. The West Hill basin W1 consists of mostly stream channel and may have more significant base flows. Herrera environmental consultants is currently performing field testing of system base flows. If the West Hill basin W1 base flows are found to be significant, the resulting base flows should be added to the runoff volume predicted by this analysis. The procedure used in this analysis is described in greater detail in the following paragraphs: a. Subbasin Delineation For each of the ten monitoring sites selected by Herrera Environmental Consultants, tributary drainage areas (subbasins) were defined based on a review of the City's storm drain inventory maps. The North Renton basin was divided into six subbasins N1 through N6 to reflect the six monitoring stations, plus a seventh subbasin N7 to account for the portion of the basin which bypasses the monitoring stations. The West Hill basin was divided into four subbasins W1 through W4 to reflect the four monitoring stations plus two additional subbasins, W5 and W6, to account for the portion of the basin (area east of Rainier Avenue South and the Renton Municipal Airport) which bypasses the monitoring stations. Table 1 describes the subbasins tributary to each monitoring station. Figures 2 and 3, in the main body of the report, 'show the monitoring site locations for the North Renton and West Hill basins, respectively. Figures 5 and 6, in the main body of the report, show the subbasin boundaries for the North Renton and West Hill basins, respectively. b. Runoff Curve Numbers Runoff curve numbers are used as an index to predict stormwater runoff considering land use, soil type, vegetation cover and interception. There are two types of runoff curve numbers (CNs), pervious and impervious. Pervious CNs correspond to vegetated or non vegetated earth such as woods, lawns, bare ground, etc. Impervious CNs correspond to roads, driveways, roofs and patios that have hard surfaces that prevent precipitation from infiltrating into the soil. Pervious and impervious runoff curve numbers were developed for each subbasin based on SCS TR-55 procedures. Hydrologic Analysis Page 3 The study area was categorized into several land uses including commercial, industrial, single family residential, multi-family residential, open spaces (such as lawns, parks, and golf courses), wood/forest areas, and freeway (for I-405). Table 2 gives the runoff CNs used in this analysis for each land use category. Table 2 also gives the percent effective impervious area for each land use category. The study area land use was defined based on a review of 1992 Washington State Department of Transportation aerial photos and the City of Renton's Comprehensive Plan, April, 1985. Table 3 shows the breakdown of land use for each subbasin. Figures 5 and 6, in the main body of the report, illustrate the land use for the North Renton and West Hill basins, respectively. The land use for the North Renton basin is primarily industrial in subbasins N1, N2, and N3. N1 includes a large Boeing facility and N3 includes a large Paccar facility. Subbasins N4 through N7 consist of a mixture of single family, multi-family and commercial. The land use for the West Hill basin is primarily single family with commercial areas and Renton Municipal Airport in the easterly portion of the basin. The subbasin soil types were identified using the King County Soil Survey (SCS, 1973). The North Renton basin contains a fairly even mix of soils from SCS types A, B, and C. The West Hill basin consists mostly of SCS type C soil and SCS urban disturbed soils, but also contains some type A and D. The King County Soil Survey defines urban disturbed soils as having been disturbed by the placement of fill to accommodate urban development. The urban disturbed soils in this portion of the basin were assumed to be type C because this would be most consistent with the soils in the rest of the basin. C. Precipitation Data In order to predict the average annual runoff volume, the precipitation data used in this analysis needed to reflect an average (representative) year of rainfall. A representative year of rainfall was selected based on a previous stormwater quality modeling study, the Sea Tac Business Park Master Drainage Plan (Sea Tac MDP) (R. W. Beck, 1989). The representative year of rainfall is defined as that year of rainfall which best maintains the average annual rainfall characteristics while accurately representing the regional wet-season/dry-season fluctuations in observed precipitation patterns. The Sea Tac MDP analyzed 35-years of precipitation data collected at Sea Tac International Airport (1951-1953, 1955-1963, 1965-1987) to determine the most representative year of rainfall. The analysis was performed using RAINEV, a rainfall analysis computer program (Sutherland and Green, 1989). This program processes raw precipitation data by separating hourly rainfall depths into significant precipitation events. It was used to perform a statistical analysis of the individual events to determine monthly and annual average characteristics. Hydrologic Analysis Page 4 The Sea Tac MDP analysis concluded that 1959 was the most representative year of the 35-years of record. Therefore, the rainfall data from 1959 was used in this study. A complete copy of the representative year of rainfall analysis, excerpted from the Sea Tac MDP, is contained in Appendix B. The representative year of rainfall analysis was performed by OTAK Engineers for R. W. Beck and Associates. d. Computations A spreadsheet was developed to define the frequency distribution for the daily 1959 Sea Tac precipitation at 0.01 inch intervals. The spreadsheet uses the frequency distribution and SCS runoff equations to estimate runoff volume for each rainfall interval. The runoff equation is given below and is described in the King County Surface Water Design Manual (King County, 1992). Qd = (PR - 0.2S)2/(PR + 0.85) for PR >_ 0.25 and Qd = 0 for PR < 0.2S S = (1000/CN) - 10 Where Qd = runoff depth in inches over the area PR = precipitation depth in inches over the area, and S = potential maximum natural detention, in inches over the area due to infiltration, storage, etc. CN = curve number The runoff volume was then multiplied by the number of times an event of that precipitation interval occurs in a year to compute the annual runoff volume for every precipitation interval. The spreadsheet then adds the annual runoff volume for each precipitation interval to arrive at a total annual runoff volume. The spreadsheet is contained in Appendix A. IV. RESULTS The average annual runoff volume for each of the subbasins and corresponding monitoring sites is presented in Table 4, along with model input parameters. TABLE 1 LAKE WASHINGTON POLLUTION ABATEMENT PROJECT STUDY AREA MONITORING STATIONS CITY OF RENTON MONITORING CONTRIBUTING AREA (ACRES) STATION DRAINAGE BASINS WEST HILL BASIN WH1 W4 115 WH2 W3 95 WH3 W2 30 WH4 Wi 337 NORTH RENTON BASIN NR1 N6 154 NR2 N5 452 NR3 N2 34 NR4 N3 + N5 747 N R5 N 4 228 NR6 N1 55 TABLE 2 LAKE WASHINGTON POLLUTION ABATEMENT PROJECT RUNOFF CURVE NUMBERS FOR LAND USES CITY OF RENTON EFFECTIVE SOIL TYPE, LAND IMPERVIOUS PERVIOUS IMPERVIOUS USE AREA EIA A B' C' D COMMERCIAL 95% 68 80 86 90 98 OPEN SPACE (1) 0% 68 80 86 90 98 MULTI-FAM RESIDENTIAL 65% 68 80 86 90 98 SINGLE FAMILY RESIDENTIAL 20% 68 80 86 90 98 INDUSTRIAL 95% 168 80 86 90 98 WOOD OR FOREST 0% 48 68 78 83 98 IMPERVIOUS (FREEWAY) 100% 98 98 98 98 98 (1) LAWNS,PARKS,GOLF COURSES TABLE 3 LAKE WASHINGTON POLLUTION ABATEMENT PROJECT CURRENT LAND USE (ACRES) CITY OF RENTON North Renton N1 0 0 0 0 55 0 0 55 N2 0 0 0 0 34 0 0 34 N3 20 0 0 82 124 49 19 294 N4 17 0 42 113 0 32 24 228 N5 59 22 89 260 0 15 8 452 N6 30 33 67 12 0 12 0 154 N7 0 0 0 0 8.1 8.1 2.6 19 Total 126 55 198 467 221 116 53 1,236 West Hill W1 12 31 0 264 0 30 0 337 W2 0 0 5 21 0 4 0 30 W3 8 0 3 62 0 22 0 95 W4 4 11 0 75 0 24 0 115 W5 0 0 11 0 80.8 0 0 92 W6 20.6 0 10.6 28.3 0 7.7 0 67 Total 44 42 30 450 81 89 0 736 COM Commercial OPEN Open Space (lawns, parks, golf courses) MFRIES Multifamily Residential SFRIES Single-family Residential INDUST Industrial WOODS Woods or Forest IMPERV Freeway TABLE 4 LAKE WASHINGTON POLLUTION ABATEMENT PROJECT ANNUAL STORM WATER RUNOFF VOLUMES CITY OF RENTON Basin''' Subbasin pervious pervious Impervious Impervious Total Runoff Area AC CN Area AC ICN Area AC Volume AC- ,_ North Renton N1 2.8 86 52.2 98 55.0 119 N2 1.7 86 32.3 98 34.0 74 N3 121.4 74 172.6 98 294.0 408 N4 138.4 67 89.6 98 228.0 213 N5 279.1 82 172.9 98 452.0 472 N6 79.5 73 74.5 98 154.0 179 N7 8.5 78 10.3 98 18.8 25 Total Basin 631.4 78 604.4 98 1235.8 1490 West Hill W1 273 85 64 98 337.0 252 W2 22.7 80 7.3 98 30.0 22 W3 72.7 84 22.3 98 95.0 76 W4 95.5 84 19.5 98 115.0 78 W5 8 86 84 98 92.0 193 W6 35 84 32 98 67.0 87 Total Basin 506.9 84 229.1 98 736 708 Hydrologic Analysis Page 5 References King County, 1992, King County Surface Water Design Manual R. W. Beck and Associates, 1990. Sea Tac Business Park Master Drainage Plan, King County Department of Public Works, Surface Water Management Division, Seattle, Washington. U. S. Department of Agriculture, Soils Conservation Service, 1986. Urban Hydrology for Small Watersheds, Technical Relax Release 55. U. S. Department of Agriculture, Soils Conservation Service, 1973, Soil Survey, King County Area, Washington. Sutherland, R. C. and D. L. Green, Simplified Particulate Transport Modeling Package User's Manual, prepared by OTAK, Inc., March 1989. (MSG.091) Appendix A Annual Runoff Volume Computations 00000000000000000000L0L.L00000000000000000000000000000000------0000000000000 �.O [ C J J�I J J J J O.O.O•C�N�C•O•C.T U U�U��L.�^�^L.d A�P A A d>i.a A�J IJ IJ L�IJ L+L+L1 IJ�J IJ F.�I.>IH tJ VJ IV IJ IJ FJ i+ i+r�i-'r`�'pp G C C N O C C G � p.Ana W N.+O�O Oo J WNr+ �00o JO•Ha W N�O`O Oo JO•�A W N'+O•D Oo JO.Ha wNn+O�00a JQ IAA W Nr+0�0 OOJO.HA o g o 't0 3 m (1) cR. m O O m 7 C frA P O fA (A N Vi{BQQ� (A X y n D = O 7 n r O�+000O�+O�+OOOOO r.�00 NON�+�+Or+OF+r+Owr+NON OONr+NN W N'+�+NN NNa N W ANN A WNW WNHNN W W W MOe W OH W T�10 O r pj y dd�t1 d D A z m p 00000c00000000000000000000000c0000b000000c00000000000000000000coococ00000000 � rt <pN 7 p m to o R1 p' Z O N V p 3 J 7 d 0 a .�o.-0000.-o.-000000000.•000000000000000000000000000000000000000e0000000000000000 �.,o � ►-� cr � ,ob.0000i�o:-00000 J�oo:-o�o>poi+off.�o'a:�i.+o:+0000000000cooc000000000000000000000000000 � m ,�,. N 8 CD 5 0 0 o N r..i w ON OOOO N O N O OOOO N N OO a O w r .+0✓Orr+0 A.+N O N OONr N N W F+O O t+t+'+✓N r+N N r�O�+�0000�+0000 0000000000 .�.�O O p N H �] V L-r oo'voc000.or�00000i.+Noo�c�ou000�+oab.oL.i.�cooaooi.:-�fa:Jo�o�o�o o.Uln>o.F.+oo:-ono a:�J�o ce t�o(.+L+aUi.aUl✓:.:.00coo �6 ao a� I�I� WIC � p rD ^ �y 171 a Oa 0000 W O W 00000 W NOO HOANNONO�+�O a F+W ON OON'+NN W r+00rt+Z+'+N✓NNr Orr 0000«+00000000000000 .�.�0 O �1GUCGCG�00 b••O.O C GO C�CCCF�OOo W NOCC`O OeG�00•CG JCOAt+FJ�+GrO�ObO.UU3.b.NOo i+C�O b�i+J`O OD r�C W IJA IJN1J IJ i+i+GC OGG ^�p9 •Y L. n � r N A O 00000000p0p.�000p0p��000p0p..000000000000000000000000000000000000N0r.�0000000000000000p0p0000o Ep Cc• pJ.tJi�L W N�O b0 J 0�.�A W N�OHO W JO.�A W Nam•O'O OaDJP HA W Nr O V Oho JT HA W Nr Obi JO. W Nr O'O OOJO.HA uN�O�OOJO.bg W Nb O j CDf7D C > O lD �. S. � < ! O p92D g g n P O CA 0 �H ^ p c Cr) D 7to O O . O�+000Or+O r OOO OOn+.�00 NON.+�+Or-Ot+rO W r+NON OONF+NN W Nf+`+NNNN AN�aN Na WNW W N W NN W W W�.n W W Ow W O•JO g y y fP 00o o o o oc co p o r n 000c000000 oo o o o c0000000000000000cooc000000cc000000000000c00000 �a $ ,°� a Dz � - ,C m ti^ y So Z ,c_, b 3 C p o > n " u� 6 0000000000000000000000000000000000000000000000000000000000000000000000000000 �.,0 tD D o c000000000000000c0000,00coc000000000000000006 o o o o o c o o o o o 0o o o ooc 0000000000 o... ^ emu UCD 7 pq m 00 0000000000000000000000000000000000000000000000000000000000000000000000000000 oa ctiUU V N G L+C V+G G G G G V+OOCGGIJ fJC OUCAiJ{�ONOfJ F�CUti W C1JCCU;+wW UWi+�'NiJ iJ i+V+r`l.a IJ i+i+N�+i+�+`+�-+�+GC GOGCGCCCGCC C ^ 6 A 0 0 O W Io V IN z ° m � o � ? y 0000000000000000000000000000000000000000000000000000000000000000000000000000 �.,00 >o>0000i.+o�+oc000U�+oot..o>t�k.+of.�ofa t�ot�i�+�.+o�+oolo:�Ni.a�.+i�:-:�iv t�+t�i�t�✓�+i�:-:-t�:��:� :�0000ccc0000000 �_ 171 oov,o c00000000000000b0000000noc�000000m00000000000000000000.-;0.-;000000000000000000 rT � �o'=oo0000000000000000000000000000000000000000000000000000000�0.�000000000000000000 V-4 F u � z .o a N (� oIMI 0000 y Woovo v,o 000000000000q-n o o o o o o o In o o o g o o o o o g q q q q 00000 o o o o o r o n o g o o o 0000000000000 C 3IN CO n N0000 o � � 00000000000000000000000000000 o In A00000o0000c000coc0oo0o0000000000000000000000c00oo E NI a � W e is C -0 O O'+O.+g q q q 0 q q q q q q q 0 q-1 q q q 0 O O O N O N O O O O O O N O 0 g q q q q q q 0 0 q 0 q 0 q q q q q<O V O g q q 0 q 0 q q q q q q 0 0 0 q q p Q � w a��0000o00ooc00000000000oc000000000000000o0000c0o0o0000000c000000000000000000000c Z m W my p O N d v a'. m vi « a ' Z to V J 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 O Q ? N m a B oo.+o.+00000c00000coo.�0000000�o.�000000.+000c0000000c00000000.�o.%000000000000000-0 20 O C N N p p j) B N t ° O a2i o a a e z v co 7 d . v N E Unaa C4 �''o c r oOP o.�N Mv�nbr aOPO Nt1<�nbr aO P c . q R�nbr o0 P O�NN1 a�n brooPryNNNNhb N�N�o'1^1'N'1�"1''!'b'1'r'1�'P'1 O.+N rn a v,nor ao P �� N n rn oD ap aO cO aO ap op o4 O.O;PPPP PP 0;000000000 N N ..�..+�?.v...�?�?�... Y p� 0000000co0o000000000000.+.:...»- -:---1-.-• ---.-^�^..- -"^-"-"^"^-----'"""'^'"-- " '" '" R z 6 �o'�o oo�.io�000 oo oc 0000c oo oo 000�000 oo 0000a�doac oo o0 o00�000000000000 oc oo 000000000co�o 0000000000000000000 F d O IL u r� col w 0000 ooc loo noeN 00000 0000000000v00000 000vovoc oc oo o 000v0000 o0000000000000000000eovoo 000000000000 q000000 N S�c a E LYi a a� Wco 0000..00000000000000n0000000vo"0000000e00000000000000000000.�0�000000000000000000 c Q ^ y `'�{I'1 6(C N c c E o wa N 3 � V m b j Z co w mN O.� 2 P 0000000000000000000000000000000000000000000000000000000000000 N 0 tO o p u a z v co 7 - t C/I Z Z a a f0 7 N N E L N 9 N Q Q Unaa x TC Cra0P0�N�n O�n`OnoOPp Ntn Ov�brcOPO�Nrn<�nbraOPO�NNf R�nbnoOP O�+N braOPO�NNf R�nb rcOP O.+Nr'f K�nbnaOPO�Nn v 'q.a -r r r ap oD aO ap ap o0 W a0 a0 a0 ???PPP PO;O;0000000000�+ -!�NN N f�N.N-��"N�-i�� ���.+��''?<,?v v??v h- --- - -- ,--- s L15 000000000000000000000o -..- ...-- ---'-" "'""'"'""""'"'"'"" J z City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin W1 Subbasin W2 Pervious Area 273 Pervious Area 22.7 Pervious Curve Number 85 Pervious Curve Number 80 Impervious Area 64 Impervious Area 7_3 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 1.76 Perv.Ret.Storage,S 250 20%Perv.Ret.Storage 035 20%Perv.Ret.Storage 050 Imperv.Ret.Storage,S 0.20 Imperv.Ret.Storage,S 0.20 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft in Ave.Year-1959 ac-ft ac-ft ac-ft 1.55 0.0 0.0 0.0 0.0 155 0.0 0.0 0.0 0.0 156 0.0 0.0 0.0 0.0 136 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 1158 0.0 0.0 0.0 0.0 138 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 1.60 1.0 11.7 7.4 19.1 1.60 1.0 0.6 0.8 13 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 350 1.0 45.9 17.4 633 350 1.0 3.1 2.0 5.1 Total Annual Storm Water Runoff 107 144 252 Total Annual Storm Water Runoff 6 16 22 Oo gC!nq Q F+1 oW oOOOOOOOOOOOO00000c00000OOOOOOOOOOOOOOOOOOOOO.�00000000.�0.-�OO00000co-�o-�000c.�o� m O z C � 3�N V � O O m O Q g? � 0000000 ti..•+���^.1^,N N?N•1.1 r'j M bP Q m Q Qvj•1�1•1.O P`?t�r'1M1OO mO0;Q Q O.n.1 O.1O•0.O N O N OOM1 t�OOOOOm Om 0000 PO P 3 V Q C O C C C O O C O C O O C C O O O O C O G O O O O O O O O O O O O O O C O O O O O C G C C O C C C O O O C O O O O O O O C O O C O O O C C C C O O O O u, m a Eco s 00° 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0-+O O O O-!q—! 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Nf /� Pp Nrn<vi01�mPp NMO�n t�mP O-+Nen V�n V t�mP O.+N try O �01�mP0-�NenO�n`O t�mP O-+Nfl<�n•O f�mP O�Nen v d 1 A.�•-�r rmao oo m9 a�mS aIg9;POGO TP PPP0000000000 .ryi y+ry yti .ry I-i N"1'01�.n+.n+'1 11'1)n+n V v v O P P 00000000000000000000000.+. -----�.-- -�.�.+-- - -- --+ "- -------" co J � F+1 F 3 u O a � z 2.o �D 'I� al r� � WQV g;uqo..oyg0000000gq000qqq000000�ov,oggqqor00000qooqqoq0000q000-+o-+og00000000000000go > N N co °Og °c I oo-+o-+00000000000doo �0000000 +o 000000 �0000000000c000000000rioe o00000000000000000 O n N Gd LW, 8 C .O C-' � „ooa ovt00000000000000m000000000.-!000000rtogog0000000qq00000000;0000g000000000000000 O Q o ��000000000000000000000000000.:0-+000000..0000000000000000000o.:o�i0000000000000000Co c c E Q c o- 7 u m a z to o � O N m Y 0 blD g o o o O o o q O o q q q q o o o q o o q q q o o o o o o q qo o o o g o o q q q O c o q o o o q o q q o q q o o o o oo o o o c o c o o o o o c g c o oo V P4 d � a c � �tia ° oo :o-»00000000000000 �0000000 0 000000 00000000000000000000 0 000000000000000000 c O c Q V V u O w al O p of d 9 N 7 r cc ° O .Q k.6 z c 7 m m E u N 90 cnaa x �'p Ct�mP q oq top V-qm Ppp N�V�n�p hmp�q q qqqp I�mPO-+Nt�f<vi�p lam PO-+N try vt SON m PO-�N NfV�n IO to mP OQ�N��v<e v Q QO-+Nen R N 'A., r n r m m mat o0 a0 cR oR cR m O�O;O;P PP O;O:O:O;------0--O-+ .+---�---N+N.yi.ry.+---i.Ni-�+.-+.-+.-+.�+--i-.In In--i--+ .x p� OOO00000000000000000000.+.�.�.- - -��••�-+.+-+�-»��- -�-+�-� -� ^^^'"" ca z City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin W3 Subbasin W4 Pervious Area 72.7 Pervious Area 95.5 Pervious Curve Number 84 Pervious Curve Number 84 Impervious Area 22.3 Impervious Area 19.5 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 1.90 Perv.Ret.Storage,S 1.90 20%Perv.Ret.Storage 038 20%Perv.Ret.Storage 038 Imperv.Ret Storage,S 0.20 Imperv.Ret.Storage,S 0.20 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft in Ave.Year-1959 ac-ft ac-ft ac-ft 1.55 0.0 0.0 0.0 0.0 1.55 0.0 0.0 0.0 0.0 1S6 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 138 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 1.59 0.0 0.0 0.0 0.0 169 0.0 0.0 0.0 0.0 1.60 1.0 2.9 2.6 5.4 1.60 1.0 3.8 2.2 6.0 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 3.50 1.0 11.7 6.1 17.8 3.50 1.0 15.4 53 20.7 Total Annual Storm Water Runoff 26 50 76 Total Annual Storm Water Runoff 34 44 78 5�C00000.+.+v,e�e�v,..lv,..l.��o�rya�n..ryrl agr�oPmao.+.�ry�arm.�yooho�o.o;o..ryo�oah.-!ovooa000000 v,o�0000moo O C CC COC 00000000'+0.�.�C�N +'+N ri.+t�f�+'+tV N.-�.+N Pi IV N'+�nOONf O n��n OfJNCNCtV Nan C�n00 tV N100CCOnC nCOC O�'i0 P U z 3Iol wItI M oP 9� 00000.+.�Pryryv,he��b.-;No;hyry.�aonbv,00ao�.+ryharagh.iooqolaao-�ryo.�oP�yor�ooaa00000.�o..i0000cgoo; W o 0 00 00 OOOCCO00000000 0.�.�O.�N.+.+N`n------.�i r-�Nto tV N�nOGt1OAl�h O N N O NONN�".O v�OONtV C0000�nO�'f 0000 e1O n ~ E 6 4)16 W o000000000000000000000000000000000000000000000000000000000000000000000000..0 O Q Q1 00, 000c00000000000000000c000000coc0000000000000cc000000000000000000000000000coo O O E O w 2 - 7 m 7 It n ry .T. a � 041muym( �x 08� 0000000000000000000000000000000000000000000000000000000000000000000000000000 C N m ? 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N 38 6 b9 ? m 2 CD CD N p o N Q S n z O O O C C y C co �Q air R g m nD O 0 000000000000000000.-0.-00000000000000000000.+000000.-0.�OOO0000.J00000 OOOOOOOO B o R D m 000000000c00000000000cooc000c00000000b000c000000booc00000000000000cooc0000000c Nn � ory (D O O in^ w IDZ c_ c m $ 3 o CD �q y cr > > o OOo OO0000OOoCD 0000000000000000000000000000000000000000000000000000000000000000oo!,oa D 0000c000b000000000L+ot,00000000000c00000000E.+000000:-�o:-000c000:-0000000c00000 o:-o:-oo^ � a � CD m c ooc000000000000boco�0000cc000000000000000a000000�oo6�ocoocootr00000000000000�+o:�oc^�6 ao A IOI SOD IU1 [ � z ° o . ,.i "I O O O O O O O O O O O O O O O O O O WOW O O O O O O O O O O O O O O O O O O O O P O O O O O O P O P O 0 0 0 0 0 0 H O O O O O O O O O O O O O O A O A 0 0.�.�0 6 C G C C C C O C C O G C G G G G G C�J O r�O G G C C O G C G C G O C G O C G C G C C.O C C G C C✓O G G C G G C G C d O O G C C G O G G C G G O C L+G N C O^ � City of Renton Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF Subbasin W5 Pervious Area 8 Pervious Curve Number 86 Impervious Area 84 Retention Storage Factors Perv.Ret.Storage,S 1.63 20%Perv.Ret.Storage 033 Imperv.Ret.Storage,S 020 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft 1.55 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 1S9 0.0 0.0 0.0 0.0 1.60 1.0 0.4 9.7 10.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 3.50 1.0 1.4 22.9 242 Total Annual Storm Water Runoff 3 190 193 •a. z r 0000000000000000000000000000000000000000000000000000000000000000000000000000 �p N VJ�+�`�' �' O C G O C O C G•O C'd � � A W N .'� ? 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E ° w N BN d rs i.C0 C t�m a 0.•�N to K N�O t� P O N O�n 10 t�m a m$O.^+ .Qi�i.�+.�i mi.P- V <a V R O O Q V O N ref C d �-1 .� r�nmmmaq aq aq a0 aq agPPO.PaPaPQ a 0000000 ' NN ����� �[ z p� c0000000000000c00000000.:.-�----.+----------------------------------------- co ^^ a J � 6 C C C lV O tV C O O O O C C C C Ci C 0 0 0 n C O C G G 0 0 Al C ni0 Ci G C C C T C C C C C C C C O C C G C O O C C C O O O O z �IC� taIN rf rfoe 9�Woo�o o�000000000000000e�0000000.00r`000000000000000000000000000a00000000000000000000 d I\/ Z 0N 0 0 c In tJ E W e a) c .0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o O 0 0 O Q � occ000c00000000000000000000000000cooc000000000000000000000000c000000000000000c cc O 7 V V 7 Z W my a co .pT d W p �/ and � �? gm o a000000000000000000000000000000000000000000000000000000000000000000000000000000 _ b uJ �Nco.ro..0000000000000o.+ooc0000.�o.+oc0000.:00000000000000000coo.+o.�0000c0000000c00000 U m 7 a 0 co O � QU go' � ate? 8N7y rnco N o) fa p a a - i L n 0 o 'Z •°41 a e r Q co IL (L E a o e N Q T C Ct�ma O�+N 1q op a O NM<vf Nf R Y '-.,•• !`r n m a4 aD an�OQ b a0 a0 ap O.a P O;O;a O;O:P 00 00 O -O O O O O.r.+.+.+.r.�— -i.r.i ry+ryi r ry..+{.N+.yn.ry+�i.�-�.�-��.�•�.�.2 2,2:1 C«- -.? -'.-.n p qg o0000000000000000000000.�.�.-�.-+.+.+.».3-�-� -" r'^""r"" ^--n J z a u City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin N1 Subbasin N2 Pervious Area 2_8 Pervious Area 1_7 Pervious Curve Number 86 Pervious Curve Number 86 Impervious Area 52.2 Impervious Area 32.3 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 1.63 Perv.Ret.Storage,S 1.63 20%Pete.Ret.Storage 033 20%Perv.Ret.Storage 0.33 Imperv.Ret.Storage,S 0.20 Imperv.Ret.Storage,S 0.20 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft in Ave.Year-1959 ac-ft ac-ft ac-ft 155 0.0 0.0 0.0 0.0 155 0.0 0.0 0.0 0.0 156 0.0 0.0 0.0 0.0 156 0.0 0.0 0.0 0.0 157 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 158 0.0 0.0 0.0 0.0 138 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 1.60 1.0 0.1 6.0 6.1 1.60 1.0 0.1 3.7 3.8 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1,68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 3.50 1.0 OS 14.2 14.7 3.50 1.0 0.3 8.8 9.1 Total Annual Storm Water Runoff 1 118 119 Total Annual Storm Water Runoff 1 73 74 $ � r w 0000000000000000000000000e0000000000000000000000000000000000000000000000000o Utz) z x JJ J J J JPP P U UL�W UNUL � L. 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W O 2 0 0 n C GAG o 0 o C o o G G g C C C o o O o 0 o C C o O n o�0 q 0 0 0 0 0 0 0 0 0 0 o C o 0 0 0 C O C C O G C O O C C O C C C O o C C o O � z a MI AIM ooc y�Wo ..tocoo ogg0000000000m000000000N000000ry00000000000000000000ryo�000000000000000000 C (^� Nt� l� M000c ooF oojoomow Z oc000000000c0000000000�o�cc0000n00000000c0000000000000000000000000000cooc �- 6 16 C S „000g000gqq000000000 N0000000�oe�000 O o qn oo q 000 o o g q q q o o 000 g o q o o o o o q o o o o o 0000000000 O Q O C o o C o o C o 0 0 o C o 0 0 0 0 0 0 0 0 0 0 0 0 0 o C o 0 0 0 0 0 0 0 0 0 0 0 0 o C o 0 o C C o o G C O o C o 0 0.+c.+o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 c c E � O U u o Z O = w w mN O y O h u Y a � Z u � ymyN o00000000000000000g00000000g000000000q0000q00000000000000000000000000000000000 d Q U p O cQU 7 �n N N O tl N u BN t .0 •° ° m .q C4 y�a e z fn Y co� Q � d a) E d , o ea ¢ 1--�1 cn a a C4 .p 0.9 mPO.+N�<vf`O t�mPO.rN Mf Pvi OAP P P 000 pp �01�mPO.-�N�ti.+.+..��.+O.ry-�N.ry-i.ryi.ry+ry-i.ry-�tiry+.�+.�n�-1�-r.�+.�-i�+.�r.�-�.�-��.r Ne'�O vi•O t�m P n:2 M1 I�I�m m aO ODmm mm00 o0P0;PP O;P S 000000'+'!••; N N ��������� as 9 000 CG OCC CCGC00000 0000•000•�.+'+��'+�r'�"'r'�"' "� "' z J � City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin N3 Subbasin N5 Pervious Area 121 Pervious Area 279.1 Pervious Curve Number 74 Pervious Curve Number 82 Impervious Area 173 Impervious Area 172.9 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 3.51 Perv.Ret.Storage,S 210 20%Perv.Ret.Storage 0.70 20%Perv.Ret.Storage 0.44 Imperv.Ret.Storage,S 010 Imperv.Ret.Storage,S 0.20 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-f[ ac-R in Ave.Year-1959 ac-ft ac-ft ac-ft 155 0.0 0.0 0.0 0.0 155 0.0 0.0 0.0 0.0 156 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 157 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 158 0.0 0.0 0.0 0.0 1.59 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 1.60 1.0 1.8 19.9 21.7 1.60 1.0 9.3 19.9 29.2 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 350 1.0 125 47.1 59.6 350 1.0 415 47.1 885 Total Annual Storm Water Runoff 18 3" 408 Total Annual Storm Water Runoff 82 390 472 4-I 5 C 00000MMv,e e•n n c In'I:ry..q<�NR n en n ono No oroPo.�ory ego a;o c b'T or;o q-1 M o o o o o nor;o o o o o off 00 o O w Az n a eo 9W 00000..Mve v v, v,r:'! 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N 1D Q 9 CroOP O Cgcq ON O Nen V�n�OruO P O NMOOOOOO�.w.N-�.�+.P.�.�-��+.r-amp�O.rNHf<v�V r 00 PO.+N n V�n V r a0 P Q.v 4 v v O v v Q v O.+Nn T Y r 1�r a0 oD o0 a0 a0°R°R NON,P O.O;P O:O:P O;O:O�C O 00.-i--.- ----r+.+.�.�.+--.i ry+.ry-�----�tiry- --i.ry+.ry+.-+.�+—.�i.-+.�-�-—-- ---.�.+------�--- C 00000 CC 00000 C z d City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin N6 Subbasin N4 Pervious Area 79.5 Pervious Area 138.4 Pervious Curve Number 73 Pervious Curve Number 67 Impervious Area 74.5 Impervious Area 89.6 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 3.70 Perv.Ret.Storage,S 4.93 20%Perv.Ret.Storage 0.74 20%Perv.Ret.Storage 0.99 Imperv.Ret.Storage,S 010 Imperv.Ret.Storage,S 020 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft in Ave.Year-1959 ac-ft ac-ft ac-ft 155 0.0 0.0 0.0 0.0 155 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 157 0.0 0.0 0.0 0.0 157 0.0 0.0 0.0 0.0 158 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 1.59 0.0 0.0 0.0 0.0 159 0.0 0.0 0.0 0.0 1.60 1.0 1.1 8.6 9.6 1.60 1.0 0.8 103 11.1 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 3.50 1.0 7.8 203 28.1 350 1.0 9.8 24.4 34.2 Total Annual Storm Water Runoff 11 168 179 Total Annual Storm Water Runoff 11 202 213 00000C Q. 0 h ryQ hryv,aonn'I v bryryr m m Q�o��-!� �ONOO QOv�a0 rj0a0P00;000�O NOONry 00000 e O v�0000 bOn O"' O C 00 OOC 000 COOOC OOOCOO'+•+G�OOOGOO +��.�0'+00•+O MON000000•+'+NCNOG�•+000CC�C�O C G O tiC + F o � U O a � z .o q a 3�m co !')I o0o b Oc l o00000000000000000000b0000 �e�o�or000 Qoo��~���O.ry OO.�G +CNOCCOCO OONCtV00��0000oc�o�00000�o� � W 8 a> r ' C -0 �+ 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.+O M O O.� 0 0 0 0 0'+O O O O O N O N O Q O C I O O O O C C G C G O C C C O G C G O G G O C O C O O O C+C G C C C O C O O C O C C G C O C O O G C O C C O C G C C O O O C C C O O G C C C C O C C C O C c C .0 y U m O 3 E o way ¢ - 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-���-�����- -��"-'-+�`-"r'-'-^^ J n City of Renton City of Renton Lake Washington Pollution Abatement Project Lake Washington Pollution Abatement Project ANNUAL STORM WATER RUNOFF ANNUAL STORM WATER RUNOFF Subbasin N7 Subbasin WIS Pervious Area 8.5 Pervious Area 35 Pervious Curve Number 78 Pervious Curve Number 84 Impervious Area 10.3 Impervious Area 33 Retention Storage Factors Retention Storage Factors Perv.Ret.Storage,S 2.82 Perv.Ret.Storage,S 1.90 20%Perv.Ret.Storage O.56 20%Perv.Ret.Storage 038 Imperv.Ret.Storage.S 020 Imperv.Ret.Storage,S 020 20%Imperv.Ret.Storage 0.04 20%Imperv.Ret.Storage 0.04 Daily Number of Pervious Impervious Total Daily Number of Pervious Impervious Total Precipitation Storms Runoff Runoff Runoff Precipitation Storms Runoff Runoff Runoff in Ave.Year-1959 ac-ft ac-ft ac-ft in Ave.Year-1959 ac-ft ac-ft ac-ft 1.55 0.0 0.0 0.0 0.0 1.55 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.56 0.0 0.0 0.0 0.0 1.57 0.0 0.0 0.0 0.0 157 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 1.58 0.0 0.0 0.0 0.0 1.59 0.0 0.0 0.0 0.0 1.59 0.0 0.0 0.0 0.0 1.60 1.0 0.2 1.2 1.4 1.60 1.0 1.4 3.8 52 1.61 0.0 0.0 0.0 0.0 1.61 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.62 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.63 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.64 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.65 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.66 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.67 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.68 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.69 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 1.70 0.0 0.0 0.0 0.0 330 1.0 1.1 2.8 3.9 3.50 1.0 5.7 8.9 14.6 Total Annual Storm Water Runoff 2 23 25 1 Total Annual Storm Water Runoff 13 74 87 Appendix B Excerpt from Sea Tac MDP on Development of Representative Year of Rainfall REPRESENTATIVE YEAR RAINFALL ANALYSIS In order to perform the computer simulation of urban runoff and pollutant loadings with either the SIMPTM program or the SLAMM (Pitt and Voorhees, 1989) program; it is necessary to generate a representative year of rainfall data for the models. This data serves as the driving mechanism for the projection of basin stormwater pollutant discharges throughout the Seatac Business Park and the Des Moines Crcelc Basin upstream of Collection Point No. 5. The representative year of rainfall data is that year of rainfall which best maintains the average annual rainfall characteristics while accurately representing the regional wet-season/dry-season fluctuations in precipitation patterns observed in the Seatac area. RAINEV Program The representative year rainfall analysis was performed via application of the RAINEV rainfall analysis program (Sutherland and Green, 1989): This program processes raw precipitation data by separating hourly rainfall depths into significant precipitation events. It then performs a statistical analyses of the individual events to determine monthly and annual average characteristics. The RAINEV output tabulates the annual and complete- record summaries of these statistical characteristics. -2- The RAINEV program allows the user to define a "threshold rainfall event" by specifying minimum rainfall depths at three durations; 1 hour, 3 hours and 6 hours. This variable definition of event characteristics is used to ensure that minimum threshold runoff conditions have been achieved. The program surveys the raw precipitation data until one of the three depth-duration relationships has been satisfied (i.e. a threshold event is found). The program then examines precipitation values preceding and following the "threshold event" to include in the "significant event" all rainfall depths equalling or exceeding a user-specified hourly trace rainfall depth. A significant rainfall event ends when it encounters a three-hour period in which no rainfall in excess of the trace amount is recorded. For each identified significant rainfall event, RAINEV calculates the antecedent dry period, rainfall duration, total rainfall depth, average intensity, and maximum intensity. The program also uses the equations published by Chow and Yen (1976) to compute a trapezoidal approximation of the rainfall hyetograph. A hyetograph is a time series of discrete rainfall depths The trapezoidal hyetograph is used in the simulation of pollutant washoff loadings in SIMPTM. Threshold of Runoff The threshold of runoff is defined as the cumulative rainfall depth at which surface runoff begins. In urban hydrology, the threshold of runoff is directly related to the volume of depression storage available on the impervious land surfaces and the infiltration capacity and depression storage of the pervious surfaces. Since the precipitation volume needed to satisfy pervious infiltration capacity and storage usually exceeds the volume needed to satisfy impervious depression storage, the threshold amount was based on impervious depression storage. Impervious depression storage is usually defined as the amount of water needed to fill the surface depressions and provide for minor infiltration before surface runoff begins. A generally accepted value for impervious depression storage is 0.1 inch of water depth distributed evenly over the entire impervious land area. This value was adopted to represent the minimum depth of a "threshold rainfall event" used in the analysis of the precipitation data in this study for the six hour duration. The shorter durations of one hour and three hours had threshold rain events of 0.05 inches and 0.08 inches respectively. These values were based upon work done by Pitt (1987). Precipitation Data The representative year analysis was performed on a 35-year precipitation record collected by the National Weather Service at the Seatac International Airport. The data base consisted of hourly precipitation depths tabulated for the period from 1951-1953, 1955-1963, and 1965 to 1987. The years 1949, 1950, 1954, and 1964 were not used because those years had large sections of missing or incomplete data. -3- Rainfall Analysis Criteria In determining the single year of rainfall data which best represents the entire 35-year Seatac Airport record, we wanted to identify a year which closely matched the 35-year averages of the following parameters: annual number of precipitation events - annual rainfall depth - annual rainfall duration - average single-event depth - average single-event intensity - average monthly rainfall depth These parameters were also used to examine the correlation of wet-season (November through April) and dry-season (May through October) rainfall behavior between the representative year and the 35-year record. 35-Year Average Rainfall Characteristics The average "significant rainfall event" characteristics based on the 35-year record at the Seatac International Airport are listed in Table 1. This data indicate that there are an average of.90.2 "significant" rainfall events each year, with a total depth of approximately 28.7 inches. This represents approximately 83 percent of the 34.6 inches of total annual rainfall recorded as an average over the 35-year record at the airport, leaving 17 percent as trace or insignificant rainfall. The average rainfall event depth is 0.32 inches occurring over a period of 6.2 hours. Candidate Year Selection We used a three step process to determine the representative year. The first step was to compare the average rainfall characteristics to the characteristics for each year of rainfall, and from this analysis, select candidate years. The second step was to do the same, but for seasonal summaries of the rainfall for each year. This step is a check to indicate any major differences between the characteristics of the annual averages and the candidate year averages. The final step was to compare the average monthly total rainfall values with the total monthly rainfall for each month of each candidate year. Based on the average annual rainfall characteristics generated for the 35-year period of record, the initial representative year candidates were narrowed to 1959, 1960, 1967 and 1978. A summary of the average annual rainfall characteristics for each of these four candidate years and the 35-year averages is provided in Table 2. The percent differences tabulated for each parameter were computed as the difference between each given yearly value and the 35-year average value; divided by the 35-year average value. The most important characteristic is total depth. Examination of the various yearly parameter values and their comparison to the 35-year averages resulted in initially ranking 1967 first, with 1959, 1960 and 1978 following as second, third and fourth, respectively. -4- Table 1 - Rainfall Evaluation Results Seatac Airport Hourly Rainfall Data Years 1951-53, 55-63, 65-87 Monthly Summary of All Rainfall Events ....... .. ... ... .... ..... .......... Average... Average ............. ..... .......... ........... .. ..... Number,. AverageAverage tAve rage Average AveragqjA....yeraae Maximum ntece dent DurA'ti6rj'%.. Depth of iIntensity Dry'?6riod ptensity:'�i� .........l . Month Events i bn s::,f,, urat16n!'�!���i::b6 of::It�V666 �e ts Events of Events of Events: of Events............ r .. ...... ............... ...... .......... ............ .......... .... ................... .......... 1 417 87 4.47 11.9 7.3 0.38 0.05 0.10 55 2 351 68 3.32 10.0 6.8 0.33 0.05 0.09 62 3 336 59 2.56 9.6 6.1 0.27 0.04 0.08 71 4 235 32 1.55 6.7 4.8 0.23 0.05 0.09 86 5 165 23 1.14 4.7 4.9 0.24 0.05 0.09 152 6 122 16 0.91 3.5 4.5 0.26 0.06 0.11 185 7 78 10 0.53 2.2 4.5 0.24 0.05 0.10 234 8 94 13 0.79 2.7 4.8 0.29 0.06 0.11 313 9 188 27 1.49 5.4 5 0.28 0.06 0.11 159 10 300 49 2.70 8.6 5.7 0.32 0.06 0.11 96 11 434 83 4.45 12.4 6.7 0.36 0.05 0.10 53 12 437 89 4.77 12.5 7.1 0.38 0.05 0.10 48 11 Year 3157 556 28.68 90.2 6.2 0.32 0.05 0.10 91 Table 2 - Rainfall Evaluation Results Summary of Average Annual Statistics Total: Total Average Average Average Ave Max Year Number Duration depth Duration Depth Intensity Intensity: of Events of Events of Events of Events of Events of Events of Events Initial Final (hrs)'< (m) (in/hr)` (in/hr) Rank Rank ; 35 Yr Ave 90.2 556 28.68 6.2 0.32 0.05 0.10 1959 91 621 29.11 6.8 0.32 0.05 0.08 # 2 # 1 diff 0.9 11.7 1.5 10.3 0.9 -1.1 -17.2 1960 86 507 28.06 5.9 0.33 0.06 0.10 # 3 # 3 diff -4.7 -8.8 -2.2 -4.3 4.1 18.6 3.6 1967 86 526 28.23 6.1 0.33 0.05 0.09 # 1 # 2 diff -4.7 -5.4 -1.6 -1.0 4.1 -1.1 -6.8 1978 87 540 27.68 6.2 0.32 0.05 0.10 # 4 # 4 diff -3.5 -2.9 -3.5 0.6 0.9 -1.1 3.6 The seasonal analysis results are on Table 3. The only major problem is the relatively large difference between the average intensity of events for the dry 1967 season. This, along with the smaller number of events, indicates that the more intense than usual 1967 summer storms might adversely affect the modeling results. This caused us to reconsider the initial candidate year ranking. The final check of the monthly rainfall totals is illustrated in Figure 1. There are two key indicators of a good representative year. The first is the number of times the line connecting a candidate year monthly totals crosses the line from the average totals. The second is the number of months which are very different from the average monthly rainfall totals. The year 1959 performs better than 1967 for both of these indicators because it crosses the average year line nine times, versus seven for 1967. The year 1967 also had two months of much higher than normal rainfall and three months of zero or nearly zero' rainfall Because of the above considerations, we selected 1959 as the representative year of rainfall for the water quality analysis for the 35 years of Seatac international Airport rainfall data. Table 4 presents the monthly summary of rainfall events for representative year 1959. Table 3 - Rainfall Evaluation Results Wet Season (November through April) Analysis otal Total Aye�ag�.* Vre. Average Ave Max Year '-.'Nuhiber. Duration :.Depth. Duration i.:-: .: : Depth Iintensity,: intensity . ........- ...... ...... Of Events, Of.Events Of:-Evehts of Events Of.Events Of Events Of Events (in/hr) (in/hr).:: 35 Yr Ave 27.06 137.51 7.56 5.08 0.28 0.05 0.1 1959 26 127 5.54 4.9 0.21 0.04 0.08 % diff -3.9 -7.6 -26.7 -3.5 -25.0 -20.0 -20.0 1967 22 114 8.5 5.2 0.39 0.07 0.13 % diff -18.7 -17.1 12.4 1 2.4 1 39.3 1 40.0 1 30.0 Dry Season (May through October) Analysis w ........... .......... .... ... ................. ... otal :Total Average:. Av' erage Average Ave M ax ear.:�:,.' Number.*-. : Duration"I"....",;Depth uration :-;- ep Y 0 th Intensity ntensity Events' ..Of Events Of.'Events. 0 ... 'Of Events Of*Ev E Of Events......... f Events :Of: vents ...................... {hours). 0n/hr) '(in/hr) *..�.-'.,.! .. .... .. 35 Yr Ave 63.2 418.4 21.13 6.6 0.33 0.05 0.09 1959 65 494 23.57 7.6 0.36 0.05 0.09 % diff 2.9 18.1 11.6 14.9 8.2 0.6 -4.8 1967 64 412 19.73 6.4 0.31 0.05 0.08 diff 1.3 -1.5 -6.6 -3.3 -6.8 0.6 -15.4 Figure 1 -- RainfallDepth at Secitac Airport Candidate Years 1959 and 1957, and 35 Year Average —+— 35 Year Average 1959 1967 1D F- 8 a� 6 ; 't o a , c ; v. ,a rl - - - - -❑ � d JAN FEB MAR APR MAY JUG! JUL AUG SEP OCT NOV DEC Month Table 4 - Rainfall Evaluation Results Monthly Summary of 1959 Rainfall .Events At the Seatac International Airport -.-.:.Average .w:AveraQe... .... . . ......... verage w ximurn: Antecedent Total 'A verage,�i:� a. Intensity Dry Period Month a"t 6n`�*�'i� Depth of :Depth o t n i Numberion' f n e.s. X.M. Events'; of;Events Events� of Events., Events'.:.: of Events of Events of Events - irs) (in) (hrs) n) (in/h r),. (in/hr)- (hr) 17 138 6.55 8.1 0.39 0.05 0.09 37 2 8 63 2.5 7.9 0.31 0.04 0.07 51 3 12 75 2.87 6.3 0.24 0.04 0.07 75 4 7 49 1.78 7 0.25 0.04 0.07 94 5 3 16 0.56 5.3 0.19 0.04 0.06 114 6 4 19 1.03 4.8 0.26 0.05 0.1 189 7 2 8 0.37 4 0.19 0.05 0.11 222 8 1 7 0.34 7 0.34 0.05 0.09 1363 9 6 41 1.62 6.8 0.27 0.04 0.09 103 10 10 36 1.62 3.6 0.16 0.05 0.08 68 11 10 88 5.08 8.8 0.51 0.06 0.08 70 12 11 81 4.79 7.4 0.44 0.06 0.11 60 Total Yr: 91 621 29.11 6.8 0.32 0.05 0.08 90 APPENDIX D Business Inventory ` APPENDIX D Business Inventory CONTENTS Table D-1 Businesses operating in North Renton and West Hill drainage basins, listed by map identification number Table D-2 Businesses operating in North Renton and West Hill drainage basins, listed alphabetically by business name Table D-3 Businesses operating in North Renton and West Hill drainage basins, listed by standard industrial classification Table D-1. Businesses operating in North Renton and West Hill drainage basins, sorted by map identification number. Sub- MAP basin ID Name of Business Address City ST ZIP Phone PUHQ SIC Type of Business North Renton Basin 1 N5 3 GARRYS GARDENING 964 ABERDEEN AV NE RENTON WA 980560 2062367543 PL 0782 Lawn and garden services 2 N3 4 KURAMOTO'S GARDENING CO 505 WINDSOR PL NE RENTON WA 98056 0000000000 PL 0782 Lawn and garden services 3 N3 7 FRIEDEL'S SERVICE INC(R) 345 N 3RD PL RENTON WA 98055 2062284262 PL 7538 General auto repairs 4 N3 7 LARJAN MOTORS 345 N 3RD PL RENTON WA 98055 PL 5511 New/used car dealers 5 N3 8 BRETSKI CONSTRUCTION 551 BRONSON WAY NE RENTON WA 98056 2062285291 PL 1521 Housing construction 6 N5 10 GLYNN LYLE HEWITT CUSTOM CONSTRUCTION 975 ABERDEEN AV NE RENTON WA 98056 2062719220 PL 1521 Housing construction 7 N5 12 HERMSEN'S HOME SERVICES 2102 NE 9TH RENTON WA 980560 2062268184 PL 1521 Housing construction 8 N6 15 EASTSIDE REMODELING 3425 NE 17TH PL RENTON WA 98056 PL 1521 Housing construction 9 N5 16 ROBERT MILLER CONSTRUCTION 3006 NE 8TH ST RENTON WA 98056 0000000000 PL 1521 Housing construction 10 N5 17 SCOTT MC CORNACK CONSTRUCTION 2924 NE 8TH ST#E RENTON WA 980560 2064324029 PL 1521 Housing construction 11 N5 18 T&R CONSTRUCTION CO 714 SUNSET BLVD NE RENTON WA 98055 2062711166 PL 1521 Housing construction 12 N4 19 HELM CONSTRUCTION 1709 EDMONDS AV NE RENTON WA 98056 2062263289 PL 1521 Housing construction 13 N5 26 NORTHWEST COMMERCIAL SERVICE 2302 NE 7TH ST RENTON WA 98056 2062715420 PL 1711 Plumbing,heating,air conditioning 14 N4 27 PROFESSOR PLUMB 1702 NE 14TH RENTON WA 980560 2062268074 PL 1711 Plumbing,heating,air conditioning 15 N3 30 GATEWAY PAINTING COMPANY 3308 PARK AV N RENTON WA 98056 2067233794 PL 1721 Painting,paper hanging 16 N4 33 POTTER'S PAINTING SERVICE 2104 DAYTON AV NE RENTON WA 98056 2062357347 PL 1721 Painting,paper hanging 17 N5 35 STOCKTON TELECOMMUNICATIONS CO 2202 NE 10TH PL#3 RENTON WA 98056 2062553557 PL 1731 Electrical work 18 N3 39 COLE COMPANY 427 WINDSOR WAY NE RENTON WA 980560 2062284280 PL 1751 Carpentry 19 N5 40 TRI WEST, INC 851 PIERCE AV NE RENTON WA 98056 2062279545 PL 1751 Carpentry 20 N3 42 TAYLOR CONSTRUCTION PROJECTS 451 INDEX PL NE RENTON WA 980560 2062285436 PL 1752 Floor laying 21 N6 43 CONSUMER BUDGET ROOFING 1228 JEFFERSON AV NE#A RENTON WA 98056 2062351635 PL 1761 Roofing,siding,sheet metal 22 N6 45 TAFF'S ROOFING 1510 HARRINGTON AV NE RENTON WA 98056 2062279682 HQ 1761 Roofing,siding,sheet metal 23 N5 47 G&G ASPHALT SEAL COAT 2824 NE 7TH ST RENTON WA 98056 2062712010 PL 1771 Concrete work 24 N3 57 JACK ROBERTS APPLIANCE 333 SUNSET BLVD N RENTON WA 98055 2062260930 PL 5722 Household appliance 25 N3 63 PACCAR DEFENSE SYSTEMS(R,C,H) 1400 N 4TH ST RENTON WA 98055 0000000000 PL 3743 Railroad equipment 26 N4 65 COURIER EXPRESS INC 1825 NE 14TH ST RENTON WA 98056 0000000000 PL 4215 Courier services(non-air) 27 N3 71 PACIFIC AUTOMOTIVE MACHINE 353 SUNSET BLVD N RENTON WA 98055 2062287177 PL 5012 Automobiles&other motor vehicles 28 N3 72 PACCAR PARTS DIVISION 502 HOUSER WAY N RENTON WA 98055 0000000000 PL 5012 Automobiles&other motor vehicles 29 N6 74 HILLCREST STATIONERS 2844 NE SUNSET BLVD RENTON WA 98056 2062715866 PL 5021 Furniture 30 N7 79 S A S FLUID POWER INC(R) 919 HOUSER WAY N RENTON WA 98055 2062715363 HQ 5084 Industrial machinery&equipment 31 N3/N7 80 KELLER PLUMBING AND HEATING 925 HOUSER WAY N RENTON WA 98055 2062556330 PL 1711 Plumbing 32 N5 95 7-ELEVEN FOOD STORE 14420 3131 NE 12TH RENTON WA 98056 2062715445 PL 5411 Groceries 33 N4 96 BP OIL CORP(R) 3002 SUNSET BLVD RENTON WA 98055 0000000000 PL 5541 Service station 34 N4 99 DAN'S QUICK STOP 430 SUNSET BLVD N RENTON WA 98055 0000000000 PL 5411 Groceries 35 N5 101 HILAND MARKET 1190 SUNSET BLVD NE RENTON WA 98055 0000000000 PL 5411 Groceries 36 N5 102 HIGHLAND ONE HOUR CLEANERS(R) 2808 10TH ST RENTON WA 980560 2067621768 PL 7211 Power laundry (family/commercial) 37 N5 103 RENTON HIGHLANDER CENTER 2806 NE 10TH ST RENTON WA 98056 2062263056 PL 7211 Power laundry (family/commercial) 38 N5 105 TEXACO 2801 NE SUNSET BLVD RENTON WA 98056 2062555341 PL 5541 Service station 39 N6 106 CLAN MILLS INC 3148 NE SUNSET BLVD RENTON WA 98056 2062287733 PL 7221 Photo studio 40 N5 107 SAFEWAY#366 2725 NE SUNSET RENTON WA 98056 0000000000 PL 5411 Groceries 41 N5 109 NORTHWEST ULTRA CLEAR INC 3401 NE 7TH ST RENTON WA 98056 2064320286 PL 7349 Bldg.maintenance services 42 N5 112 TEAM CLEAN 3712 NE 9TH ST RENTON WA 98056 2062285369 PL 7349 Bldg.maintenance services continued 255A\LW BUSN Table D-1. Businesses operating in North Renton and West Hill drainage basins, sorted by map identification number (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PLJHQ SIC Type of Business North Renton Basin(continued) 43 N5 113 V&C JANITORIAL SERVICE 667 EDMONDS NE RENTON WA 98056 2062350758 PL 7538 Bldg.maintenance services 44 N3 136 EXPRESS TUNE(R) 233 SUNSET BLVD N RENTON WA 98055 2062354944 PL 7538 General auto repairs 45 N4 138 HIGHLANDS AUTOMOTIVE INC 2615 NE SUNSET BLVD RENTON WA 98056 2062555080 PL 7538 General auto repairs 46 N5 149 ROSCOE'S TOWING SERVICE 663 DAYTON AV NE RENTON WA 98056 2062365816 PL 7549 Specialized auto (non-repair) 47 N3 151 RUBBER DUCK CB CLINIC 217 SUNSET BLVD RENTON WA 98055 2062350800 PL 7629 Electrical repairs 48 N3 152 J.JULIAN&SON ELECTRIC MOTORS 340 SUNSET BLVD N RENTON WA 98055 0000000000 PL 7694 Electric motor repair 49 N3 153 COMPUTER PERFORMANCE 251 SUNSET BLVD N RENTON WA 98055 2062270529 PL 5734 Computer sales&service 50 N4 154 J&S REPAIR 1127 HARRINGTON AV NE RENTON WA 98056 2062286096 PL 7699 Misc.electrical equipment repair 51 N3 159 RENTON MEDICAL CENTER 275 BRONSON WAY NE RENTON WA 98056 0000000000 PL 8093 Specialty medical clinic 52 N3 163 STROMBERG CONSTRUCTION 654 BLAINE AV NE RENTON WA 980563 2062555271 PL 1521 Housing construction 53 N3 165 PERFORMANCE APEX AUTO SHOP (R,H) 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 54 N3 165 CAR TRENDS 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 55 N3 168 EVERGREEN AGRO 903 HOUSER WAY N RENTON WA 98055 PL 5192 Fertilizer,wholesale 56 N3 170 BOEING (FORMERLY BEADEX) (S) 833 HOI.ISER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 57 N3 172 BOEING (FORMERLY EP INDUSTRIES,INC) 801 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 58 N1/N2 175 BOEING RENTON PLANT(R,S) 8TH AND LOGAN AV RENTON WA 98055 PL 3721 Aircraft manufacture 59 N3 176 RENTON SCHOOL DISTRICT(R) 1220 4TH AV N RENTON WA 98055 PL 4151 School buses 60 N3 179 BOEING (FORMERLY WEB PRESS CORP) 829 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 61 N6 180 BUSY BEE CLEANERS 3164 SUNSET BLVD NE RENTON WA 98055 PL 7216 Dry cleaning 62 N4 181 THE CLEANING SHOPPE (R) 2830 SUNSET BLVD NE RENTON WA 98055 PL 7215 Laundromat 63 N5 182 KING COUNTY PARKS SUPPORT DIVISION 3005 4TH AV NE RENTON WA 98055 PL 0782 Park maintenance 64 WF 183 PUGET SOUND POWER&LIGHT(R,S) 1101 LK WASHINGTON BLVD RENTON WA 98055 PL 4911 Electric power utility 65 N3 201 AMERICAN AUTO PAINTING (R) 310 3RD PL N RENTON WA 98055 PL 7532 Automotive painting 66 N3 208 PRESERVATIVE PAINT 350 SUNSET BLVD RENTON WA 98055 PL 5198 Paint 67 N3 210 7-ELEVEN STORE FOOD#2305-24410A 404 SUNSET BLVD RENTON WA 98055 2062260315 PL 5411 Groceries 68 N3 218 RENTON-HIGHLANDS LANDFILL(H) NE 3RD ST WEST OF NE 4TH ST RENTON WA 98055 PL 4953 Landfill 69 N3 219 SUNSET CARS 330 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars 70 N3 220 PLATT ELECTRIC SUPPLY 350 N SUNSET BLVD RENTON WA 98055 PL 5063 Electrical apparatus&equipment 71 N3 221 SOUND CARS 455 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars continued 955A`l�^'ai ISN Table D-1. Businesses operating in North Renton and West Hill drainage basins, sorted by map identification number (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business West Hill Basin 1 W1 1 EARLINGTON GREENHOUSES 8074 S 132D ST SEATTLE WA 98178 0000000000 PL 0181 Plant nursery 2 W4 2 LAKE WASHINGTON GREENHOUSE INC 12167 87TH AV S SEATTLE WA 98178 2067724422 PL 0181 Plant nursery 3 W3 6 BANK AUTO SALES 515 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealer 4 W3 9 ONE STOP AUTO SALES 625 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealer 5 W3 11 HALSTEAD CONSTRUCTION INC 460 STEVENS AV NW RENTON WA 98055 2067725832 PL 1521 Housing construction 6 W5 20 RIVER RIDGE CONSTRUCTION INC 330 AIRPORT WAY RENTON WA 98055 2062289750 PL 1623 Water,sewer,utility 7 Wt 37 CARPENTRY BY FLYNN 7107 S 131 ST SEATTLE WA 98178 2062717633 PL 1751 Carpentry 8 W3 38 CHANDLER-GUSTAFSON CONSTRUCTION 8435 S 124TH ST SEATTLE WA 98178 2067725143 PL 1751 Carpentry 9 Wt 41 DEPENDABLE SERVICES 12411 79TH AV S SEATTLE WA 981780 2067724738 PL 1752 Floor laying 10 W6 44 PACIFIC STAINLESS PRODUCTS 325 STEVENS NW RENTON WA 98055 0000000000 PL 1761 Roofing,siding,sheet metal 11 W5 48 ANGS GLASS 221 AIRPORT WAY RENTON WA 98055 2062264822 PL 1793 Glass&glazing work 12 W4 64 INDUSTRIAL SYSTEMS LABORATORY 879 RAINIER AV N STE At 00 RENTON WA 980550 2067721564 PL 3829 Measuring&controlling dev. 13 W5 66 SOUND FLIGHT,INC 243 W PERIMETER RD RENTON WA 98055 2062556500 PL 4512 Scheduled air transport. 14 W5 68 ACTION AVIATION INC(S) 840 W PERIMETER RD RENTON WA 98055 2062558800 PL 4581 Airports&services 15 W1 70 88&EBS BUSINESS 8242 S 128TH SEATTLE WA 98178 2069932771 PL 4731 Freight transport.arrange. 16 W4 76 SUMMIT ELECTRIC SALES CO,INC 901 RAINIER AV N SUITE B201 RENTON WA 98055 2067724022 PL 5063 Electrical apparatus&equipment 17 W4 77 G J CAMPBELL&ASSOCIATES 11613 RAINIER AV S SEATTLE WA 98178 0000000000 PL 5075 Heating&air conditioning 18 W1 84 GROWERS&ASSOCIATES INC 8608 S 134TH SEATTLE WA 98178 2062711388 PL 5261 Retail nurseries/gardens 19 W6 85 HONEST PERFORMANCE 271 RAINIER AV N RENTON WA 98055 2067722020 PL 5511 New/used car dealer 20 W1 87 RON'S TRANSHOP 12667 RENTON AV S SEATTLE WA 98178 2067728200 PL 5511 New/used car dealer 21 W3 88 AFFORDABLE AUTO(S) 515 RAINIER AV S RENTON WA 98055 PL 5521 Used cars 22 W6 89 CAREW AUTO SALES INC 221 RAINIER N RENTON WA 98055 2062559374 PL 5521 Used cars 23 W6 90 CROSSETT CARS INC 221 RAINIER AV N RENTON WA 98055 2062559374 PL 5521 Used cars 24 W6 91 EXPRESS AUTO SALES 110 RENTON AV EXT S RENTON WA 98055 2062778775 PL 5521 Used cars 25 W3 92 B&B AUTO PARTS 401 RAINIER AV N RENTON WA 98055 2067720904 PL 5531 Auto&home supplies 26 W1 94 SKYWAY AUTO PARTS 12661 RENTON AV S SEATTLE WA 98178 2067255983 HQ 5531 Auto&home supplies 27 W1 108 SKYWAY MARKET 12600 RENTON AV S SEATTLE WA 98178 2067724926 PL 5411 Groceries 28 W3 117 RENTON SPORTS EQUIPMENT 415 RAINIER N RENTON WA 98055 3166367333 PL 7359 Equipment rentals 29 W1 118 WOW ONE HOUR PHOTO 12540 RENTON AV S SEATTLE WA 981780 2067723221 PL 7384 Photofinishing laboratory 30 Wt 119 BOWMAN LIMOUSINE SERVICE,INC 12727 1/2 RENTON AV S SEATTLE WA 98178 2067723181 PL 7514 Rental car agency 31 W3 120 U HAUL OF RENTON (R) 453 RAINIER AV N RENTON WA 98055 2067723106 PL 7519 Utility trailer rental 32 W6 124 HAROLD'S AUTO REBUILD(R) 124 RAINIER AV RENTON WA 98055 0000000000 PL 7532 Auto repairs(body/interior) 33 W6 135 DUKE'S TRANSMISSION SALES&SERVICE(S) 255 RAINIER AV N RENTON WA 980550 2062552204 PL 7538 General auto repairs 34 W3 140 KELLY'S CAR CARE 559 RAINIER AV N RENTON WA 98055 2067726860 PL 7538 General auto repairs 35 W2 145 WINDSHIELDS AMERICA INC 365 RAINIER AV N RENTON WA 98055 5099225033 PL 7539 Specialized auto repairs 36 W6 146 BROWN BEAR CAR WASH(R) 77 RAINIER AV S RENTON WA 98055 2062711353 PL 7542 Carwash 37 W3 147 PUGET SOUND AUTO GLASS 409 RAINIER AV N RENTON WA 98055 2067721131 PL 7542 Carwash 38 W6 148 MINIT LUBE#1111 100 RAINIER AV RENTON WA 98055 2062714778 PL 7549 Specialized auto (non-repair) 39 W3 150 ALLIANCE ELECTRONICS 419 RAINIER AV N RENTON WA 98055 2067948820 PL 7622 Stereo repair 40 W6 155 SAMPSON&SAMPSON INC 151 RAINIER AV S RENTON WA 98055 0000000000 PL 7699 Misc.repair continued 255A\LWBUSN Table D-1. Businesses operating in North Renton and West Hill drainage basins, sorted by map identification number (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business West Hill Basin (continued) 41 W5 156 SAWDUST SHOPPES INC 203 AIRPORT WAY RENTON WA 98055 2062554417 PL 7699 Misc.repair 42 W1 160 KING COUNTY FIRE DISTRICT 20 12617 76TH AV S SEATTLE WA 98178 0000000000 PL 9224 Firehouse 43 W6 173 ARCO PRODUCTS(R) 175 RAINIER AV S RENTON WA 98055 PL 5541 Service station 44 W5 177 ROSSOE INC(R) 201 AIRPORT WAY RENTON WA 98055 PL 5172 Heating oil 45 W6 189 MILLET'S UNOCAL(R) 59 RAINIER AV S RENTON WA 98055 PL 5172 Heating oil 46 W6 191 MIDAS 215 RAINIER AV N RENTON WA 98055 PL 7533 Muffler 47 W6 192 RITEWAY TRANSMISSION SERVICE 225A RAINIER AV N RENTON WA 98055 PL 7537 Transmission repair 48 W6 193 HONDA MOTORCYCLE 213 RAINIER AV N RENTON WA 98055 PL 5012 Motorcycle sales and repair 49 W2 194 AUTO CARE 365 RAINIER AV N RENTON WA 98055 PL 7538 Automotive repair 50 W1 198 FRANK'S SELF SERVICE 12603 RENTON AV S RENTON WA 98055 PL 5541 Service station 51 W1 199 KEN'S SKYWAY CLEANERS 12546 RENTON AV S RENTON WA 98055 PL 7216 Dry cleaning 52 Wt 200 AUTO INTERNATIONAL LTD 12605 RENTON AV S RENTON WA 98055 PL 7538 General auto repairs 53 W6 203 BARRON AUTO SALES 313 RAINIER AV N RENTON WA 98055 PL 5012 Automobile sales 54 W5 204 JVC AVIATION,INC 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 55 W5 205 LANE AVIATION 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 56 W4 211 FORD JANITORIAL SERVICES INC 901 RAINIER AV N STE B-203 RENTON WA 98055 2067720452 PL 7349 Bldg.maintenance services 57 W5 215 NORTHWEST SEAPLANES 840 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 58 W5 216 RENTON FLIGHT SERVICE 300 AIRPORT WAY RENTON WA 98055 PL 4581 Airports&services 59 W5 217 BOEING COMPANY PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services PL: Plant location;HQ: Headquarters location R: RCRA-permitted facility H: Contaminated site(state cleanup list) C: CERCLA(Superfund)list S: Spill WF: Waterfront 255A\LWBUSN Table D-2. Businesses operating in North Renton and West Hill drainage basins, sorted alphabetically by business name. Sub- MAP basin ID Name of Business Address City ST ZIP Phone PUHO SIC Type of Business 1 N5 95 7-ELEVEN FOOD STORE 14420 3131 NE 12TH RENTON WA 98056 2062715445 PL 5411 Groceries 2 N3 210 7-ELEVEN FOOD STORE#2305-24410A 404 SUNSET BLVD RENTON WA 98055 2062260315 PL 5411 Groceries 3 W5 68 ACTION AVIATION INC(S) 840 W PERIMETER RD RENTON WA 98055 2062558800 PL 4581 Airports&services 4 W3 88 AFFORDABLE AUTO(S) 515 RAINIER AV S RENTON WA 98055 PL 5521 Used cars 5 W3 150 ALLIANCE ELECTRONICS 419 RAINIER AV N RENTON WA 98055 2067948820 PL 7622 Stereo repair 6 N3 201 AMERICAN AUTO PAINTING (R) 310 3RD PL N RENTON WA 98055 PL 7532 Automotive painting 7 W5 48 ANGS GLASS 221 AIRPORT WAY RENTON WA 98055 2062264822 PL 1793 Glass&glazing work 8 W6 173 ARCO PRODUCTS(R) 175 RAINIER AV S RENTON WA 98055 PL 5541 Service station 9 W2 194 AUTO CARE 365 RAINIER AV N RENTON WA 98055 PL 7538 Automotive repair 10 W1 200 AUTO INTERNATIONAL LTD 12605 RENTON AV S RENTON WA 98055 PL 7538 General auto repairs 11 W3 92 B&B AUTO PARTS 401 RAINIER AV N RENTON WA 98055 2067720904 PL 5531 Auto&home supplies 12 W3 6 BANK AUTO SALES 515 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealers 13 W6 203 BARRON AUTO SALES 313 RAINIER AV N RENTON WA 98055 PL 5012 Automobile sales 14 W1 70 BB&EBS BUSINESS 8242 S 128 SEATTLE WA 98178 2069932771 PL 4731 Freight transport.arrange. 15 W5 217 BOEING COMPANY PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 16 N3 170 BOEING(FORMERLY BEADEX) (S) 833 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 17 N3 172 BOEING (FORMERLY EP INDUSTRIES,INC) 801 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 18 N3 179 BOEING (FORMERLY WEB PRESS CORP) 829 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 19 N1/N2 175 BOEING RENTON PLANT(R,S) 8TH AND LOGAN AV RENTON WA 98055 PL 3721 Aircraft manufacture 20 W1 119 BOWMAN LIMOUSINE SERVICE,INC 12727 1/2 RENTON AV S SEATTLE WA 98178 2067723181 PL 7514 Rental car agency 21 N4 96 BP OIL CORP(R) 3002 SUNSET BLVD RENTON WA 98055 0000000000 PL 5541 Service station 22 N3 8 BRETSKI CONSTRUCTION 551 BRONSON WAY NE RENTON WA 98056 2062285291 PL 1521 Housing construction 23 W6 146 BROWN BEAR CAR WASH (R) 77 RAINIER AV S RENTON WA 98055 2062711353 PL 7542 Carwash 24 N6 180 BUSY BEE CLEANERS 3164 SUNSET BLVD. NE RENTON WA 98055 PL 7216 Dry cleaning 25 N3 165 CAR TRENDS 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 26 W6 89 CAREW AUTO SALES INC 221 RAINIER N RENTON WA 98055 2062559374 PL 5521 Used cars 27 W1 37 CARPENTRY BY FLYNN 7107 S 131 ST SEATTLE WA 98178 2062717633 PL 1751 Carpentry 28 W3 38 CHAN DLER-G USTAFSON CONSTRUCTION 8435 S 124 ST SEATTLE WA 98178 2067725143 PL 1751 Carpentry 29 N3 39 COLE COMPANY 427 WINDSOR WAY NE RENTON WA 980560 2062284280 PL 1751 Carpentry 30 N3 153 COMPUTER PERFORMANCE 251 SUNSET BLVD N RENTON WA 98055 2062270529 PL 5734 Computer sales&service 31 N6 43 CONSUMER BUDGET ROOFING 1228 JEFFERSON AV NE#A RENTON WA 98056 2062351635 PL 1761 Roofing,siding,sheet metal 32 N4 65 COURIER EXPRESS INC 1825 NE 14TH ST RENTON WA 98056 0000000000 PL 4215 Courier services (non-air) 33 W6 90 CROSSETT CARS INC 221 RAINIER AV N RENTON WA 98055 2062559374 PL 5521 Used cars 34 N4 99 DAN'S QUICK STOP 430 SUNSET BLVD N RENTON WA 98055 0000000000 PL 5411 Groceries 35 W1 41 DEPENDABLE SERVICES 12411 79TH AV S SEATTLE WA 981780 2067724738 PL 1752 Floor laying 36 W6 135 DUKE'S TRANSMISSION SALES&SERVICE(S) 255 RAINIER AV N RENTON WA 980550 2062552204 PL 7538 General auto repairs 37 W1 1 EARLINGTON GREENHOUSES 8074 S 132 ST SEATTLE WA 98178 0000000000 PL 0181 Plant nursery 38 N6 15 EASTSIDE REMODELING 3425 NE 17TH PL RENTON WA 98056 PL 1521 Housing construction 39 N3 168 EVERGREEN AGRO 903 HOUSER WAY N RENTON WA 98055 PL 5192 Fertilizer,wholesale 40 W6 91 EXPRESS AUTO SALES 110 RENTON AV EXT S RENTON WA 98055 2062778775 PL 5521 Used cars 41 N3 136 EXPRESS TUNE(R) 233 SUNSET BLVD N RENTON WA 98055 2062354944 PL 7538 General auto repairs 42 W4 211 FORD JANITORIAL SERVICES INC 901 RAINIER AV N#B-203 RENTON WA 98055 2067720452 PL 7349 Bldg.maintenance services 43 W1 198 FRANK'S SELF SERVICE 12603 RENTON AV S RENTON WA 98055 PL 5541 Service station continued 255A\LWBUSA Table D-2. Businesses operating in North Renton and West Hill drainage basins, sorted alphabetically by business name (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business 44 N3 7 FRIEDEL'S SERVICE INC(R) 345 N 3RD PL RENTON WA 98055 2062284262 PL 7538 General auto repairs 45 N5 47 G&G ASPHALT SEAL COAT 2824 NE 7TH ST RENTON WA 98056 2062712010 PL 1771 Concrete work 46 W4 77 G J CAMPBELL&ASSOCIATES 11613 RAINIER AV S SEATTLE WA 98178 0000000000 PL 5075 Heating&air conditioning 46 N5 3 GARRY'S GARDENING 964 ABERDEEN AV NE RENTON WA 980560 2062367543 PL 0782 Lawn and garden services 47 N3 30 GATEWAY PAINTING COMPANY 3308 PARK AV N RENTON WA 98056 2067233794 PL 1721 Painting,paper hanging 48 N5 10 GLYNN LYLE HEWITT CUSTOM CONSTRUCTION 975 ABERDEEN AV NE RENTON WA 98056 2062719220 PL 1521 Housing construction 49 W1 84 GROWERS&ASSOCIATES INC 8608 S 134TH SEATTLE WA 98178 2062711388 PL 5261 Retail nurseries/gardens 50 W3 11 HALSTEAD CONSTRUCTION INC 460 STEVENS AV NW RENTON WA 98055 2067725832 PL 1521 Housing construction 51 W6 124 HAROLDS AUTO REBUILD(R) 124 RAINIER AV RENTON WA 98055 0000000000 PL 7532 Auto repairs(body/interior) 52 N4 19 HELM CONSTRUCTION 1709 EDMONDS AV NE RENTON WA 98056 2062263289 PL 1521 Housing construction 53 N5 12 HERMSEN'S HOME SERVICES 2102 NE 9TH RENTON WA 980560 2062268184 PL 1521 Housing construction 54 N5 102 HIGHLAND ONE HOUR CLEANERS(R) 2808 10TH ST RENTON WA 980560 2067621768 PL 7211 Power laundry (family/commercial) 55 N4 138 HIGHLANDS AUTOMOTIVE INC 2615 NE SUNSET BLVD RENTON WA 98056 2062555080 PL 7538 General auto repairs 56 N5 101 HILAND MARKET 1190 SUNSET BLVD NE RENTON WA 98055 0000000000 PL 5411 Groceries 57 N6 74 HILLCREST STATIONERS 2844 NE SUNSET BLVD RENTON WA 98056 2062715866 PL 5021 Furniture 58 W6 193 HONDA MOTORCYCLE 213 RAINIER AV N RENTON WA 98055 PL 5012 Motorcycle sales and repair 59 W6 85 HONEST PERFORMANCE 271 RAINIER AV N RENTON WA 98055 2067722020 PL 5511 New/used car dealer 60 W4 64 INDUSTRIAL SYSTEMS LABORATORY 879 RAINIER AV N#A100 RENTON WA 980550 2067721564 PL 3829 Measuring&controlling dev. 61 N4 154 J&S REPAIR 1127 HARRINGTON AV NE RENTON WA 98056 2062286096 PL 7699 Misc.electrical equipment repair 62 N3 152 J.JULIAN&SON ELECTRIC MOTORS 340 SUNSET BLVD N RENTON WA 98055 0000000000 PL 7694 Electric motor repair 63 N3 57 JACK ROBERTS APPLIANCE 333 SUNSET BLVD N RENTON WA 98055 2062260930 PL 5722 Household appliance 64 W5 204 JVC AVIATION,INC 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 65 N3/N7 80 KELLER PLUMBING AND HEATING 925 HOUSER WAY N RENTON WA 98055 2062556330 PL 1711 Plumbing 66 W3 140 KELLY'S CAR CARE 559 RAINIER AV N RENTON WA 98055 2067726860 PL 7538 General auto repairs 67 W1 199 KEN'S SKYWAY CLEANERS 12546 RENTON AV S RENTON WA 98055 PL 7216 Dry cleaning 68 N5 182 KING COUNTY PARKS SUPPORT DIVISION 3005 4TH AV NE RENTON WA 98055 PL 0782 Park maintenance 69 W1 160 KING COUNTY FIRE DISTRICT 20 12617 76TH AV S SEATTLE WA 98178 0000000000 PL 9224 Firehouse 70 N3 4 KURAMOTO'S GARDENING CO 505 WINDSOR PL NE RENTON WA 98056 0000000000 PL 0782 Lawn and garden services 71 W4 2 LAKE WASHINGTON GREENHOUSE INC 12167 87TH AV S SEATTLE WA 98178 2067724422 PL 0181 Plant nursery 72 W5 205 LANE AVIATION 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 73 N3 7 LARJAN MOTORS 345 N 3RD PL RENTON WA 98055 PL 5511 New/used car dealer 74 W6 191 MIDAS 215 RAINIER AV N RENTON WA 98055 PL 7533 Muffler 75 W6 189 MILLET'S UNOCAL(R) 59 RAINIER AV S RENTON WA 98055 PL 5172 Heating oil 76 W6 148 MINIT LUBE#1111 100 RAINIER AV RENTON WA 98055 2062714778 PL 7549 Specialized auto (non-repair) 77 N5 26 NORTHWEST COMMERCIAL SERVICE 2302 NE 7TH ST RENTON WA 98056 2062715420 PL 1711 Plumbing,heating,air conditioning 78 W5 215 NORTHWEST SEAPLANES 840 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 79 N5 109 NORTHWEST ULTRA CLEAR INC 3401 NE 7TH ST RENTON WA 98056 2064320286 PL 7349 Bldg.maintenance services 80 N6 106 OLAN MILLS INC 3148 NE SUNSET BLVD RENTON WA 98056 2062287733 PL 7221 Photo studio 81 W3 9 ONE STOP AUTO SALES 625 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealer 82 N3 63 PACCAR DEFENSE SYSTEMS(R,C,H) 1400 NORTH 4TH STREET RENTON WA 98055 0000000000 PL 3743 Railroad equipment 83 N3 72 PACCAR PARTS DIVISION 502 HOUSER WAY NORTH RENTON WA 98055 0000000000 PL 5012 Automobiles&other motor vehicles 84 N3 71 PACIFIC AUTOMOTIVE MACHINE 353 SUNSET BLVD N RENTON WA 98055 2062287177 PL 5012 Automobiles&other motor vehicles 85 W6 44 PACIFIC STAINLESS PRODUCTS 325 STEVENS NW RENTON WA 98055 0000000000 PL 1761 Roofing,siding,sheet metal continued 255A\LW BUSA Table D-2. Businesses operating in North Renton and West Hill drainage basins, sorted alphabetically by business name (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business 86 N3 165 PERFORMANCE APEX AUTO SHOP(R,H) 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 87 N3 220 PLATT ELECTRIC SUPPLY 350 N SUNSET BLVD RENTON WA 98055 PL 5063 Electrical apparatus&equipment 88 N4 33 POTTER'S PAINTING SERVICE 2104 DAYTON AV NE RENTON WA 98056 2062357347 PL 1721 Painting,paper hanging 89 N3 208 PRESERVATIVE PAINT 350 SUNSET BLVD RENTON WA 98055 PL 5198 Paint 90 N4 27 PROFESSOR PLUMB 1702 NE 14TH RENTON WA 980560 2062268074 PL 1711 Plumbing,heating,air conditioning 91 W3 147 PUGET SOUND AUTO GLASS 409 RAINIER AV N RENTON WA 98055 2067721131 PL 7542 Carwash 92 WF 183 PUGET SOUND POWER&LIGHT(R,S) 1101 LK WASHINGTON BLVD RENTON WA 98055 PL 4911 Electric power utility 93 W5 216 RENTON FLIGHT SERVICE 300 AIRPORT WAY RENTON WA 98055 PL 4581 Airports&services 94 N5 103 RENTON HIGHLANDER CENTER 2806 NE 10TH ST RENTON WA 98056 2062263056 PL 7211 Power laundry(family/commercial) 95 N3 159 RENTON MEDICAL CENTER 275 BRONSON WAY NE RENTON WA 98056 0000000000 PL 8093 Specialty medical clinic 96 N3 176 RENTON SCHOOL DISTRICT(R) 1220 4TH AV N RENTON WA 98055 PL 4151 School buses 97 W3 117 RENTON SPORTS EQUIPMENT 415 RAINIER N RENTON WA 98055 3166367333 PL 7359 Equipment rentals 98 N3 218 RENTON-HIGHLANDS LANDFILL(H) NE 3RD ST WEST OF NE 4TH ST RENTON WA 98055 PL 4953 Landfill 99 W6 192 RITEWAY TRANSMISSION SERVICE 225A RAINIER AV N RENTON WA 98055 PL 7537 Transmission repair 100 W5 20 RIVER RIDGE CONSTRUCTION INC 330 AIRPORT WAY RENTON WA 98055 2062289750 PL 1623 Water,sewer,utility 101 N5 16 ROBERT MILLER CONSTRUCTION 3006 NE 8TH ST RENTON WA 98056 0000000000 PL 1521 Housing construction 102 W1 87 RON'S TRANSHOP 12667 RENTON AV S SEATTLE WA 98178 2067728200 PL 5511 New/used car dealer 103 N5 149 ROSCOE'S TOWING SERVICE 663 DAYTON AV NE RENTON WA 98056 2062365816 PL 7549 Specialized auto (non-repair) 104 W5 177 ROSSOE INC(R) 201 AIRPORT WAY RENTON WA 98055 PL 5172 Heating oil 105 N3 151 RUBBER DUCK CB CLINIC 217 SUNSET BLVD RENTON WA 98055 2062350800 PL 7629 Electrical repairs 106 N7 79 S A S FLUID POWER INC (R) 919 HOUSER WAY N RENTON WA 98055 2062715363 HQ 5084 Industrial machinery&equipment 107 N5 107 SAFEWAY#366 2725 NE SUNSET RENTON WA 98056 0000000000 PL 5411 Groceries 108 W6 155 SAMPSON&SAMPSON INC 151 RAINIER AV S RENTON WA 98055 0000000000 PL 7699 Misc.electrical equipment repair 109 W5 156 SAWDUST SHOPPES INC 203 AIRPORT WAY RENTON WA 98055 2062554417 PL 7699 Misc.electrical equpment repair 110 N5 17 SCOTT MC CORNACK CONSTRUCTION 2924 NE 8TH ST#E RENTON WA 980560 2064324029 PL 1521 Housing construction 111 W1 94 SKYWAY AUTO PARTS 12661 RENTON AV S SEATTLE WA 98178 2067255983 HQ 5531 Auto&home supplies 112 W1 108 SKYWAY MARKET 12600 RENTON AV S SEATTLE WA 98178 2067724926 PL 5411 Groceries 113 N3 221 SOUND CARS 455 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars 114 W5 66 SOUND FLIGHT,INC 243 W PERIMETER RD RENTON WA 98055 2062556500 PL 4512 Scheduled air transport. 115 N5 35 STOCKTON TELECOMMUNICATIONS CO 2202 NE 10TH PL#3 RENTON WA 98056 2062553557 PL 1731 Electrical work 116 N3 163 STROMBERG CONSTRUCTION 654 BLAINE AV NE RENTON WA 980563 2062555271 PL 1521 Housing construction 117 W4 76 SUMMIT ELECTRIC SALES CO,INC 901 RAINIER AV N#B201 RENTON WA 98055 2067724022 PL 5063 Electrical apparatus&equipment 118 N3 219 SUNSET CARS 330 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars 119 N5 18 T&R CONSTRUCTION CO 714 SUNSET BLVD NE RENTON WA 98055 2062711166 PL 1521 Housing construction 120 N6 45 TAFF'S ROOFING 1510 HARRINGTON AV NE RENTON WA 98056 2062279682 HQ 1761 Roofing,siding,sheet metal 121 N3 42 TAYLOR CONSTRUCTION PROJECTS 451 INDEX PL NE RENTON WA 980560 2062285436 PL 1752 Floor laying 122 N5 112 TEAM CLEAN 3712 NE 9TH ST RENTON WA 98056 2062285369 PL 7349 Bldg.maintenance services 123 N5 105 TEXACO 2801 NE SUNSET BLVD RENTON WA 98056 2062555341 PL 5541 Service station continued 255A\LW BUSA Table D-2. Businesses operating in North Renton and West Hill drainage basins, sorted alphabetically by business name (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business 124 N4 181 THE CLEANING SHOPPE(R) 2830 SUNSET BLVD NE RENTON WA 98055 PL 7215 Laundromat 125 N5 40 TRI WEST,INC 851 PIERCE AV NE RENTON WA 98056 2062279545 PL 1751 Carpentry 126 W3 120 U HAUL OF RENTON (R) 453 RAINIER AV N RENTON WA 98055 2067723106 PL 7519 Utility trailer rental 127 N5 113 V&C JANITORIAL SERVICE 667 EDMONDS NE RENTON WA 98056 2062350758 PL 7349 Bldg.maintenance services 128 W2 145 WINDSHIELDS AMERICA INC 365 RAINIER AV N RENTON WA 98055 5099225033 PL 7539 Specialized auto repairs 129 W1 118 WOW ONE HOUR PHOTO 12540 RENTON AV S SEATTLE WA 981780 2067723221 PL 7384 Photofinishing laboratory PL: Plant location; HQ: Headquarters location R: RCRA-permitted facility H: Contaminated site(state cleanup list) C: CERCLA(Superfund)site S: Spill WF: Waterfront ` "55A\i'uci iSA Table D-3. Businesses operating in North Renton and West Hill drainage basins, sorted by standard industrial classification. Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business North Renton Basin 1 N3 4 KURAMOTO'S GARDENING CO 505 WINDSOR PL NE RENTON WA 98056 0000000000 PL 0782 Lawn and garden services 2 N5 182 KING COUNTY PARKS SUPPORT DIVISION 3005 4TH AV NE RENTON WA 98055 PL 0782 Park maintenance 3 N5 3 GARRY'S GARDENING 964 ABERDEEN AV NE RENTON WA 980560 2062367543 PL 0782 Lawn and garden services 4 N3 8 BRETSKI CONSTRUCTION 551 BRONSON WAY NE RENTON WA 98056 2062285291 PL 1521 Housing construction 5 N3 163 STROMBERG CONSTRUCTION 654 BLAINE AV NE RENTON WA 980563 2062555271 PL 1521 Housing construction 6 N4 19 HELM CONSTRUCTION 1709 EDMONDS AV NE RENTON WA 98056 2062263289 PL 1521 Housing construction 7 N5 16 ROBERT MILLER CONSTRUCTION 3006 NE 8TH ST RENTON WA 98056 0000000000 PL 1521 Housing construction 8 N5 12 HERMSEN'S HOME SERVICES 2102 NE 9TH RENTON WA 980560 2062268184 PL 1521 Housing construction 9 N5 18 T&R CONSTRUCTION CO 714 SUNSET BLVD NE RENTON WA 98055 2062711166 PL 1521 Housing construction 10 N5 17 SCOTT MC CORNACK CONSTRUCTION 2924 NE 8TH ST#E RENTON WA 980560 2064324029 PL 1521 Housing construction 11 N5 10 GLYNN LYLE HEWITT CUSTOM CONSTRUCTION 975 ABERDEEN AV NE RENTON WA 98056 2062719220 PL 1521 Housing construction 12 N6 15 EASTSIDE REMODELING 3425 NE 17TH PL RENTON WA 98056 PL 1521 Housing construction 13 N3/N7 80 KELLER PLUMBING AND HEATING 925 HOUSER WAY N RENTON WA 98055 2062556330 PL 1711 Plumbing 14 N4 27 PROFESSOR PLUMB 1702 NE 14TH RENTON WA 980560 2062268074 PL 1711 Plumbing,heating,air conditioning 15 N5 26 NORTHWEST COMMERCIAL SERVICE 2302 NE 7TH ST RENTON WA 98056 2062715420 PL 1711 Plumbing,heating,air conditioning 16 N3 30 GATEWAY PAINTING COMPANY 3308 PARK AV N RENTON WA 98056 2067233794 PL 1721 Painting,paper hanging 17 N4 33 POTTER'S PAINTING SERVICE 2104 DAYTON AV NE RENTON WA 98056 2062357347 PL 1721 Painting,paper hanging 18 N5 35 STOCKTON TELECOMMUNICATIONS CO 2202 NE 10TH PL#3 RENTON WA 98056 2062553557 PL 1731 Electrical work 19 N3 39 COLE COMPANY 427 WINDSOR WAY NE RENTON WA 980560 2062284280 PL 1751 Carpentry 20 N5 40 TRI WEST,INC 851 PIERCE AV NE RENTON WA 98056 2062279545 PL 1751 Carpentry 21 N3 42 TAYLOR CONSTRUCTION PROJECTS 451 INDEX PL NE RENTON WA 980560 2062285436 PL 1752 Floor laying 22 N6 45 TAFF'S ROOFING 1510 HARRINGTON AV NE RENTON WA 98056 2062279682 HQ 1761 Roofing,siding,sheet metal 23 N6 43 CONSUMER BUDGET ROOFING 1228 JEFFERSON AV NE#A RENTON WA 98056 2062351635 PL 1761 Roofing,siding,sheet metal 24 N5 47 G&G ASPHALT SEAL COAT 2824 NE 7TH ST RENTON WA 98056 2062712010 PL 1771 Concrete work 25 N1/N2 175 BOEING RENTON PLANT(R,S) 8TH AND LOGAN AV RENTON WA 98055 PL 3721 Aircraft manufacture 26 N3 179 BOEING(FORMERLY WEB PRESS CORP) 829 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 27 N3 170 BOEING (FORMERLY BEADEX) (S) 833 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 28 N3 172 BOEING(FORMERLY EP INDUSTRIES,INC) 801 HOUSER WAY N RENTON WA 98055 PL 3721 Aircraft manufacture 29 N3 63 PACCAR DEFENSE SYSTEMS(R,C,H) 1400 NORTH 4TH ST RENTON WA 98055 0000000000 PL 3743 Railroad equipment 30 N3 176 RENTON SCHOOL DISTRICT(R) 1220 4TH AV N RENTON WA 98055 PL 4151 School buses 31 N4 65 COURIER EXPRESS INC 1825 NE 14TH ST RENTON WA 98056 0000000000 PL 4215 Courier services(non-air) 32 WF 183 PUGET SOUND POWER&LIGHT(R,S) 1101 LK WASHINGTON BLVD RENTON WA 98055 PL 4911 Electric power utility 33 N3 218 RENTON-HIGHLANDS LANDFILL(H) NE 3RD ST WEST OF NE 4TH ST RENTON WA 98055 PL 4953 Landfill 34 N3 71 PACIFIC AUTOMOTIVE MACHINE 353 SUNSET BLVD N RENTON WA 98055 2062287177 PL 5012 Automobiles&other motor vehicles 35 N3 72 PACCAR PARTS DIVISION 502 HOUSER WAY NORTH RENTON WA 98055 0000000000 PL 5012 Automobiles&other motor vehicles 36 N6 74 HILLCREST STATIONERS 2844 NE SUNSET BLVD RENTON WA 98056 2062715866 PL 5021 Furniture 37 N3 220 PLATT ELECTRIC SUPPLY 350 N SUNSET BLVD RENTON WA 98055 PL 5063 Electrical apparatus&equipment 38 N7 79 S A S FLUID POWER INC(R) 919 HOUSER WAY N RENTON WA 98055 2062715363 HQ 5084 Industrial machinery&equipment 39 N3 168 EVERGREEN AGRO 903 HOUSER WAY N RENTON WA 98055 PL 5192 Fertilizer,wholesale 40 N3 208 PRESERVATIVE PAINT 350 SUNSET BLVD RENTON WA 98055 PL 5198 Paint 41 N3 210 7-ELEVEN FOOD STORE#2305-24410A 404 SUNSET BLVD RENTON WA 98055 2062260315 PL 5411 Groceries 42 N4 99 DAN'S QUICK STOP 430 SUNSET BLVD N RENTON WA 98055 0000000000 PL 5411 Groceries _ continued 255A\LWBUSS Table D-3. Businesses operating in North Renton and West Hill drainage basins, sorted by standard industrial classification (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business North Renton Basin(continued) 43 N5 95 7-ELEVEN FOOD STORE 14420 3131 NE 12TH RENTON WA 98056 2062715445 PL 5411 Groceries 44 N5 101 HILAND MARKET 1190 SUNSET BLVD NE RENTON WA 98055 0000000000 PL 5411 Groceries 45 N5 107 SAFEWAY#366 2725 NE SUNSET RENTON WA 98056 0000000000 PL 5411 Groceries 46 N3 7 LARJAN MOTORS 345 N 3RD PL RENTON WA 98055 PL 5511 New/used car dealer 47 N3 219 SUNSET CARS 330 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars 48 N3 221 SOUND CARS 455 N SUNSET BLVD RENTON WA 98055 PL 5521 Used cars 49 N4 96 BP OIL CORP(R) 3002 SUNSET BLVD RENTON WA 98055 0000000000 PL 5541 Service station 50 N5 105 TEXACO 2801 NE SUNSET BLVD RENTON WA 98056 2062555341 PL 5541 Service station 51 N3 57 JACK ROBERTS APPLIANCE 333 SUNSET BLVD N RENTON WA 98055 2062260930 PL 5722 Household appliance 52 N3 153 COMPUTER PERFORMANCE 251 SUNSET BLVD N RENTON WA 98055 2062270529 PL 5734 Computer sales&service 53 N5 102 HIGHLAND ONE HOUR CLEANERS(R) 2808 10TH ST RENTON WA 980560 2067621768 PL 7211 Power laundry (family/commercial) 54 N5 103 RENTON HIGHLANDER CENTER 2806 NE 10TH ST RENTON WA 98056 2062263056 PL 7211 Power laundry(family/commercial) 55 N4 181 THE CLEANING SHOPPE(R) 2830 SUNSET BLVD NE RENTON WA 98055 PL 7215 Laundromat 56 N6 180 BUSY BEE CLEANERS 3164 SUNSET BLVD NE RENTON WA 98055 PL 7216 Dry cleaning 57 N6 106 CLAN MILLS INC 3148 NE SUNSET BLVD RENTON WA 98056 2062287733 PL 7221 Photo studio 58 N5 113 V&C JANITORIAL SERVICE 667 EDMONDS NE RENTON WA 98056 2062350758 PL 7349 Bldg.maintenance services 59 N5 109 NORTHWEST ULTRA CLEAR INC 3401 NE 7TH ST RENTON WA 98056 2064320286 PL 7349 Bldg.maintenance services 60 N5 112 TEAM CLEAN 3712 NE 9TH ST RENTON WA 98056 2062285369 PL 7349 Bldg.maintenance services 61 N3 136 EXPRESS TUNE(R) 233 SUNSET BLVD N RENTON WA 98055 2062354944 PL 7538 General auto repairs 62 N3 165 CAR TRENDS 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 63 N3 165 PERFORMANCE APEX AUTO SHOP(R,H) 410 SUNSET BLVD RENTON WA 98055 PL 7538 General auto repairs 64 N3 7 FRIEDEL'S SERVICE INC(R) 345 N 3RD PL RENTON WA 98055 2062284262 PL 7538 General auto repairs 65 N4 138 HIGHLANDS AUTOMOTIVE INC 2615 NE SUNSET BLVD RENTON WA 98056 2062555080 PL 7538 General auto repairs 66 N5 149 ROSCOE'S TOWING SERVICE 663 DAYTON AV NE RENTON WA 98056 2062365816 PL 7549 Specialized auto(non-repair) 67 N3 151 RUBBER DUCK CB CLINIC 217 SUNSET BLVD RENTON WA 98055 2062350800 PL 7629 Electrical repairs 68 N3 152 J.JULIAN&SON ELECTRIC MOTORS 340 SUNSET BLVD N RENTON WA 98055 0000000000 PL 7694 Electric motor repair 69 N4 154 J&S REPAIR 1127 HARRINGTON AV NE RENTON WA 98056 2062286096 PL 7699 Misc.electrical equipment repair 70 N3 159 RENTON MEDICAL CENTER 275 BRONSON WAY NE RENTON WA 98056 0000000000 PL 8093 Specialty medical clinic 71 N3 201 AMERICAN AUTO PAINTING(R) 310 3RD PL N RENTON WA 98055 PL 7532 Automotive painting continued 055*1 mini icS Table D-3. Businesses operating in North Renton and West Hill drainage basins, sorted by standard industrial classification (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PL/HQ SIC Type of Business West Hill Basin 1 W4 2 LAKE WASHINGTON GREENHOUSE INC 12167 87TH AV S SEATTLE WA 98178 2067724422 PL 0181 Plant nursery 2 W1 1 EARLINGTON GREENHOUSES 8074 S 132 ST SEATTLE WA 98178 0000000000 PL 0181 Plant nursery 3 W3 11 HALSTEAD CONSTRUCTION INC 460 STEVENS AV NW RENTON WA 98055 2067725832 PL 1521 Housing construction 4 W5 20 RIVER RIDGE CONSTRUCTION INC 330 AIRPORT WAY RENTON WA 98055 2062289750 PL 1623 Water,sewer,utility 5 W3 38 CHANDLER-GUSTAFSON CONSTRUCTION 8435 S 124TH ST SEATTLE WA 98178 2067725143 PL 1751 Carpentry 6 W1 37 CARPENTRY BY FLYNN 7107 S 131 ST SEATTLE WA 98178 2062717633 PL 1751 Carpentry 7 W1 41 DEPENDABLE SERVICES 12411 79TH AV S SEATTLE WA 981780 2067724738 PL 1752 Floor laying 8 W6 44 PACIFIC STAINLESS PRODUCTS 325 STEVENS NW RENTON WA 98055 0000000000 PL 1761 Roofing,siding,sheet metal 9 W5 48 ANGS GLASS 221 AIRPORT WAY RENTON WA 98055 2062264822 PL 1793 Glass and glazing work 10 W4 64 INDUSTRIAL SYSTEMS LABORATORY 879 RAINIER AV N#A100 RENTON WA 980550 2067721564 PL 3829 Measuring&controlling dev. 11 W5 66 SOUND FLIGHT,INC 243 W PERIMETER RD RENTON WA 98055 2062556500 PL 4512 Scheduled air transport. 12 W5 205 LANE AVIATION 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 13 W5 217 BOEING COMPANY PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 14 W5 215 NORTHWEST SEAPLANES 840 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 15 W5 68 ACTION AVIATION INC(S) 840 W PERIMETER RD RENTON WA 98055 2062558800 PL 4581 Airports&services 16 W5 216 RENTON FLIGHT SERVICE 300 AIRPORT WAY RENTON WA 98055 PL 4581 Airports&services 17 W5 204 JVC AVIATION,INC 500 PERIMETER RD W RENTON WA 98055 PL 4581 Airports&services 18 W1 70 BB&EBS BUSINESS 8242 S 128TH SEATTLE WA 98178 2069932771 PL 4731 Freight transport.arrange. 19 W4 76 SUMMIT ELECTRIC SALES CO,INC 901 RAINIER AV N#B201 RENTON WA 98055 2067724022 PL 5063 Electrical apparatus&equipment 20 W4 77 G J CAMPBELL&ASSOCIATES 11613 RAINIER AV S SEATTLE WA 98178 0000000000 PL 5075 Heating&air conditioning 21 W5 177 ROSSOE INC(R) 201 AIRPORT WAY RENTON WA 98055 PL 5172 Heating oil 22 W6 189 MILLET'S UNOCAL(R) 59 RAINIER AV S RENTON WA 98055 PL 5172 Heating oil 23 W1 84 GROWERS&ASSOCIATES INC 8608 S 134TH SEATTLE WA 98178 2062711388 PL 5261 Retail nurseries/gardens 24 W1 108 SKYWAY MARKET 12600 RENTON AV S SEATTLE WA 98178 2067724926 PL 5411 Groceries 25 W3 9 ONE STOP AUTO SALES 625 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealer 26 W1 87 RON'S TRANSHOP 12667 RENTON AV S SEATTLE WA 98178 2067728200 PL 5511 New/used car dealer 27 W3 6 BANK AUTO SALES 515 RAINIER AV N RENTON WA 98055 PL 5511 New/used car dealer 28 W6 85 HONEST PERFORMANCE 271 RAINIER AV N RENTON WA 98055 2067722020 PL 5511 New/used car dealer 29 W6 91 EXPRESS AUTO SALES 110 RENTON AV EXT S RENTON WA 98055 2062778775 PL 5521 Used cars 30 W6 89 CAREW AUTO SALES INC 221 RAINIER N RENTON WA 98055 2062559374 PL 5521 Used cars 31 W3 88 AFFORDABLE AUTO(S) 515 RAINIER AV S RENTON WA 98055 PL 5521 Used cars 32 W6 90 CROSSEfT CARS INC 221 RAINIER AV N RENTON WA 98055 2062559374 PL 5521 Used cars 33 W3 92 B&B AUTO PARTS 401 RAINIER AV N RENTON WA 98055 2067720904 PL 5531 Auto&home supplies 34 W1 94 SKYWAY AUTO PARTS 12661 RENTON AV S SEATTLE WA 98178 2067255983 HQ 5531 Auto&home supplies 35 W6 173 ARCO PRODUCTS(R) 175 RAINIER AV S RENTON WA 98055 PL 5541 Service station 36 W1 198 FRANK'S SELF SERVICE 12603 RENTON AV S RENTON WA 98055 PL 5541 Service station 37 W4 211 FORD JANITORIAL SERVICES INC 901 RAINIER AV N, #B-203 RENTON WA 98055 2067720452 PL 7349 Bldg.maintenance services 38 W3 117 RENTON SPORTS EQUIPMENT 415 RAINIER N RENTON WA 98055 3166367333 PL 7359 Equip.rentals 39 Wt 118 WOW ONE HOUR PHOTO 12540 RENTON AV S SEATTLE WA 981780 2067723221 PL 7384 Photofinishing laboratory 40 W1 119 BOWMAN LIMOUSINE SERVICE, INC 12727 1/2 RENTON AV S SEATTLE WA 98178 2067723181 PL 7514 Rental car agency 41 W3 120 U HAUL OF RENTON(R) 453 RAINIER AV N RENTON WA 98055 2067723106 PL 7519 Utility trailer rental 42 W6 124 HAROLDS AUTO REBUILD(R) 124 RAINIER AV RENTON WA 98055 0000000000 PL 7532 Auto repairs(body/interior) continued 255A\LW BUSS Table D-3. Businesses operating in North Renton and West Hill drainage basins, sorted by standard industrial classification (continued). Sub- MAP basin ID Name of Business Address City ST ZIP Phone PUHQ SIC Type of Business West HIII Basin(continued) 43 W3 140 KELLY'S CAR CARE 559 RAINIER AV N RENTON WA 98055 2067726860 PL 7538 General auto repairs 44 Wt 200 AUTO INTERNATIONAL LTD 12605 RENTON AV S RENTON WA 98055 PL 7538 General auto repairs 45 W6 135 DUKE'S TRANSMISSION SALES&SERVICE(S) 255 RAINIER AV N RENTON WA 980550 2062552204 PL 7538 General auto repairs 46 W2 145 WINDSHIELDS AMERICA INC 365 RAINIER AV N RENTON WA 98055 5099225033 PL 7539 Specialized auto repairs 47 W3 147 PUGET SOUND AUTO GLASS 409 RAINIER AV N RENTON WA 98055 2067721131 PL 7542 Carwash 48 W6 146 BROWN BEAR CAR WASH(R) 77 RAINIER AV S RENTON WA 98055 2062711353 PL 7542 Carwash 49 W6 148 MINIT LUBE#1111 100 RAINIER AV RENTON WA 98055 2062714778 PL 7549 Specialized auto(non-repair) 50 W3 150 ALLIANCE ELECTRONICS 419 RAINIER AV N RENTON WA 98055 2067948820 PL 7622 Stereo repair 51 W6 155 SAMPSON&SAMPSON INC 151 RAINIER AV S RENTON WA 98055 0000000000 PL 7699 Misc.electrical equip.repair 52 W5 156 SAWDUST SHOPPES INC 203 AIRPORT WAY RENTON WA 98055 2062554417 PL 7699 Misc.electrical equip.repair 53 W1 160 KING COUNTY FIRE DISTRICT 20 12617 76TH AV S SEATTLE WA 98178 0000000000 PL 9224 Firehouse 54 W6 203 BARRON AUTO SALES 313 RAINIER AV N RENTON WA 98055 PL 5012 Automobile sales 55 W6 193 HONDA MOTORCYCLE 213 RAINIER AV N RENTON WA 98055 PL 5012 Motorcycle sales and repair 56 Wt 199 KEN'S SKYWAY CLEANERS 12546 RENTON AV S RENTON WA 98055 PL 7216 Dry cleaning 57 W6 191 MIDAS 215 RAINIER AV N RENTON WA 98055 PL 7533 Muffler 58 W6 192 RITEWAY TRANSMISSION SERVICE 225A RAINIER AV N RENTON WA 98055 PL 7537 Transmission repair 59 W2 194 AUTO CARE 365 RAINIER AV N RENTON WA 98055 PL 7538 Automotive repair PL: Plant location; HQ: Headquarters location R: RCRA-permitted facility H: Contaminated site(state cleanup list) C: CERCLA(Superfund)site S: Spill WF: Waterfront 255A\LWBUSS APPENDIX E Data Quality. Assurance-Report APPENDIX E Data Quality Assurance Report DATA QUALITY ASSURANCE REPORT Data collected as part of the Lake Washington Pollution Abatement Program were validated according to quality control objectives identified in the monitoring plan (Herrera 1992) for holding times, precision of laboratory and field duplicate analyses, and accuracy of matrix spike and control sample analyses. The chain-of-custody records and data validation (quality assurance) work sheets are presented here along with the data validation findings. There were no changes in the monitoring or quality assurance plans, and no significant problems with data quality. The following values were qualified as estimates (flagged with a "J") because of minor quality control problems: ■ Discharge values for stations NR-4 and WH-2 from the base flow sample of 4/20/93, were qualified because of the use of a measurement technique with low precision. ■ Turbidity values for both storm events, on 4/8/93 and 4/25/93, were qualified because of excessive holding times (4 days in each case, rather than 48 hours). ■ Soluble reactive phosphorus values for the base flow sample of 4/20/93 were qualified because of an excessive holding time (7 days rather than 2 days). ■ Fecal coliform bacteria values for the base flow sample of 4/20/93 and the outfall water sample of 1/19/93 were qualified because of high relative percent differences between laboratory duplicates (33 percent and 31 percent, respectively). ■ Copper, lead, and zinc values for the storm event of 4/25/93 were qualified as estimates because each of these metals was also present in the sample blank. Sample values that were less than five times the detected blank value were qualified as estimated concentrations. As a result, all copper values were qualified as estimated; lead was qualified as an estimated value for sample WH-3; and zinc was qualified as estimated for sample WH-4. ■ Cyanide and lindane were both qualified as estimated values for the outfall water samples because of low accuracy in the spike samples. Cyanide was recovered in the matrix spike at a level of only 1 percent. Although application of the cyanide data is limited by the very low matrix spike result, these data were not rejected because a high degree of accuracy was observed in the laboratory check standard. However, a matrix interference may be indicated for the outfall water sample. Lindane was recovered in the blank spike at a level of 48 percent which was below the limit established by the laboratory. For all other analyses the quality control objectives were met. 255C\LWTASK3 E-1 Herrera Environmental Consultants APPENDIX F Available Stormwater Publications APPENDIX F Available Stormwater Publications Available Publications on Water Quality/Best Management Practices U.S. Environmental Protection Agency Manuals (available from EPA 513/569-7562). Guides to pollution prevention: paint manufacturing industry. EPA 625/7-90/005. Guides to pollution prevention: The pesticide fonnulating industry. EPA 625/7-90/004. Guides to pollution prevention: The commercial printing industry. EPA 625/7-90/008. Guides to pollution prevention: The fabricated metal industry. EPA 625/7-90/006. Guides to pollution prevention for selected hospital waste streams. EPA 625f7-90/009. Guides to pollution prevention: Research and educational institutions. EPA 625f7-90/010. Guides to pollution prevention: The printed circuit board manufacturing industry. EPA 625/7- 90/007. Guides to pollution prevention: The pharmaceutical industry. EPA 625/7-91/017. Guides to pollution prevention: The photoprocessing industry. EPA 625/7-91/012. Guides to pollution prevention: The fiberglass reinforced and composite plastic industry. EPA 625/7-91/014. Guides to pollution prevention: The automotive refinishing industry. EPA 625/7-91/016. Guides to pollution prevention: The marine repair industry. EPA 625/7-91/015. U.S. EPA pollution prevention information clearinghouse (PPIC): Electronic information exchange system (EIES)--User guide, Version 1.1. EPA 600/9-89/086. Reports on Waste Minimization Waste minimization audit report: Case studies of corrosive and heavy metal was minimization audit at a specialty steel manufacturing complex. Executive Summary. NTIS No. PB88- 107180. Waste minimization audit- report: Case studies of minimization of solvent waste for parts cleaning and from electronic capacitor manufacturing operation. Executive Summary. NTIS No. PB87-227013. F-1 Waste minimization audit report. Case studies of minimization of cyanide wastes from electroplating operations. Executive Summary. NTIS No. PB87-229662. Waste minimization--Issues and options. Vols. I-III. U.S. Environmental Protection Agency. 1986. EPA 530/SW-86-041 through -043. Washington, D.C. Washington Department of Ecology. About Aquatic Plants (16 p.). #89-27. Capitol funding program: 1992 report to the legislature (101 p.). #93-04. Water quality guide: Recommended pollution control practices for homeowners and small farm operators,June 1991 (31 p.). #87-30. Water quality in Washington: A summary of the 1988 statewide water quality assessment. October 1988 (11 p.). #88-20. Water quality in Washington: A summary of the 1992 statewide water quality assessment. July 1992. (12 p.). #92-62. Water quality laws and regulations. July 1991. (1,200 p.). #89-40. Water quality program inspection manual. June 1992. (210 p.). #92-76. ($21.56) Design criteria for gravity oil/water separators. January 1982. (51 p.). #82-01. Design of monitoring programs for determination of ecological change resulting from nonpoint water pollution in Washington state. March 1986. (287 p.). #91-76. Milfoil--color identification flyer. #91-14. Nonpoint source pollution assessment and management program. October 1989 (383 p.). #88- 17. Protecting groundwater: a strategy for managing agricultural pesticides and nutrients. April 1992. (137 p.). #91-42. Summary of states' water quality permit programs. August 1992. (82 p.). #92-98. Urban Bay Toxics Control Program: Action team accomplishments. September 1987. (43 p.). #87-25. F-2 Wastewater discharge permit action plan: Report to the House Environmental Affairs Committee. September 1991. (25 p.). #91-51. Water quality alternative strategies: Pollution prevention through non-traditional approaches. June 1993. (98 p.). #93-24. Brochures Before you build: Do you have adequate water? Caring for our water is everybody's business--tips to help you protect water at home. #90-BR- 13. City streams: guidelines for survival (brochure). Commercial waste reduction and recycling manual. January 1992. (44 p.)#90-36. Environmentally sound paper and paper products sold in Washington State. #91-BR-09. Fact sheet#1: Waste reduction and recycling. June 1990. (4 p.). Fact sheet#2: Autobody shops. June 1990. (4 p.). Fact sheet#3: Automotive repair shops. June 1990. (4 p.) Fact sheet#4: Considerations in selecting a still for on-site recycling. Fact sheet#5: Drycleaners. June 1990. (4 p.). Fact sheet#6: Photoprocessors. June 1990. (4 p.). Fact sheet#7: Printing shops. Generator check list. Focus: counting exemption for recycled used antifreeze. Focus: used shop towels. Focus: waste tires. For hazardous waste...There's no place like home (How to reduce, recycle, and safely dispose of household hazardous wastes). (1 page flyer). Guide to lead-acid batteries. #90-BR-06. Guide to the used oil problem--What can you do?. #90-BR-10. Guide to recycling around the house. #90-BR-10. Hazardous waste do's and don'ts: Dry cleaning. #91-12C. Hazardous waste do's and don'ts: Electroplating. #91-12G. Hazardous waste do's and don'ts: Pesticide application. #91-12D. Hazardous waste do's and don'ts: Photo finishing. #91-12E. Hazardous waste do's and don'ts: Printing and graphics arts. #91-12F. Hazardous waste--more common than you think. Hazardous waste regulatory alert: CFC's. Hazardous waste regulatory alert: update on used oil filters. Hazardous waste services directory. #91-12S. Home composting--go recycle. How to make waste reduction and recycling happen in your school. (37 p.)#91-38. Is water quality going down the drain in your garage? How service station operators can help prevent groundwater contamination. #91-BR-08. Managing hazardous waste: auto body shops. #92-BR-16. Managing hazardous waste: auto dealers. #92-BR-14. F-3 Managing hazardous waste: automotive machine shops. #92-BR-11. Managing hazardous waste: automotive repair. #92-BR-12. Managing hazardous waste: radiator shops. #92-BR-09. Managing hazardous waste: service stations. #92-BR-13. Managing hazardous waste: tire dealers. #92-BR-15. Managing hazardous waste: transmission shops. #92-BR-10. Milfoil (an aggressive water weed). #90-BR-02. Pollution prevention planning--Guidance manual for Chapter 173-307 WAC. January 1992. (108 p.)#91-02. Pollution solutions--Special new bulletin for boaters. (2 p. flyer). Recommended practices for the storage of vehicle batteries. Reducing waste in your business--A factsheet. (4 p.). Solid waste reduction and recycling--A handbook of strategies employed by businesses in Washington State. June 1988. (51 p.). #90-48. Stop spreading milfoil around--Long Lake. Success through waste reduction: Proven techniques from Washington businesses. (21 p.). #90- 22. Success through waste reduction: Proven techniques from Washington businesses-Volume 2. (18 p.). #92-45. Success through waste reduction: Proven techniques from Washington businesses-Volume 3. (16 p.). #93-14. Talk'n.Trash--Environmental education opportunities for schools through waste reduction, recycling, and litter control. (6 p.). 91-BR-13. Toxics reduction technical assistance plan. July 1992. (89 p.). #92-35. Turning the tide on toxics in the home--A guide to safer alternatives and proper disposal of hazardous household products. (52 p.). #90-25. Underground storage tanks: What do you have to do? Waste reduction for vehicle maintenance shops. July 1992. (27 p.) Waste reduction in your business. February 1991. (33 p.). #89-56. Waste reduction, recycling, and litter control program. #91-BR-03. Water quality financial assistance program. #89-BR-05. What can I do? A home guide to a cleaner, safer Puget Sound. (4 p.). What is a riparian zone?#92-BR-03. Yard waste composting manual. August 1990. (255 p.). #90-32. King County Surface Water Management Division Booklets Native plant guide. October 1993. Streamside savvy. July 1993. Brochures Lakes. November 1993. F-4 Get your feet wet(volunteer opportunities). July 1993. Flood warning (no charge) Cedar River basin Green River basin White River basin Snoqualmite River basin Streams. July 1992. Watersheds. July 1992. Wetlands. April 1992. Surface water management past, present, and future. February 1992. Hometips for clean streams. June 1991. Volunteer to stencil your neighborhoold storm drains. (1 p. brochure). Children's items Slug hotel directions and coloring sheet. July 1993. Build-a-fish coloring book. July 1992. Salmon maze (game). April 1991. Surface water wordfind (game). April 1991. Watershed crossword puzzle (game). April 1991. Surface water and you (poster). 1991. This stream in your care coloring sheet. July 1990. Flyers Native plant salvage program. June 1993. Purple loosestrife facts. June 1993. Organic soil improvement. June 1993. Shoreline practices. June 1993. Recipes for cleaner water. April 1993. Storm drain stenciling. 1992. Volunteer opportunities. 1992. Stake cutting/planting tips. August 1991. The value of riparian vegetation/BMPs. August 1991. Newsletters Downstream News. June 1992. Seattle-King County Local Hazardous Waste Management Program (LHWMP) (available through Metro 689-3051) LHMP program Hazardous materials reporter. PROG 10.03. F-S Industrial Materials Exchange (IMEX). PROG 10.05. IMEX catalogue. PROG 10.06. Library brochure. PROG 10.07. Standard packet. PROG 10.08. Waste Information Network (WIN) introduction and organization statement: PROG 10.09 and 10.10. Working together to reduce hazardous waste. PROG 10.11. Hazardous waste--a managment guide for local business. PROG 10.12. Watching your waste. PROG 10.13. Business waste line. PROG 10.14. Drains--When you don't know where they go. PROG 10.15. Permitted laundries in King County. PROG 10.16. Small Quantity Generators Are you pouring water quality down the drain? SQG 20.01. Business and Metro. SQG 20.02. Code reference chart(Shields Compnay). SQG 20.03. Environmental.services directory for Washington state. SQG 20.04. Labor and Industries--understanding the right to know. SQG 20.20. Licensed underground storage tanks: Northwest Environmental Compliance Report quick reference guide. SQG 20.21. Metro materials. SQG 20.22. The sewer is a big dark hole. SQG 20.24. Your business can profit by producing less! SQG 20.25. How on earth can your business produce less and still be more profitable? SQG 20.26. Waste management guidelines for analytical laboratories. SQG 30.01. Controlling brake dust to protect your health. What every auto mechanic should know (EPA). SQG 40.01. Fact sheet: clean cars and clean streams. SQG 40.02. TIM 90.1--regulation of used antifreeze. SQG 40.40. Choosing a vendor. SQG 40.23. Used antifreeze: Why should automotive shops recycle it? SQG 40.24. Plastic bumper covers. SQG 40.25. Small boat yards and boat repair shops--pollution prevention pays. SQG 50.01. Dental material recyclers. SQG 60.01. Dental office waste management check list. SQG 60.02. Dental office waste stream characterization study. SQG 60.03. Dental office waste stream characterization study--executive summary. SQG 60.04. Dry cleaners: you do produce hazardous waste, pollution pays. SQG 70.01. F-6 Household Hazardous Waste 1. General brochures Citizen's fact sheet. HHW 10.01. Hazardous products equal hazardous waste. HHW 10.02. Paint: waste reduction, recycling, and disposal information. (Urban Wildlife Coalition). HHW 10.03. Safe alternatives to common household products (poster). HHW 10.04. Six steps to a healthy pesticide-free garden (Seattle Tilth Society). HHW 10.05. Ten most wanted pests. HHW 10.06. Trouble-free plants. HHW 10.07. 2. Alternative Products (Washington Toxics Coalition) Aphids. HHW 20.01. Carpenter ants. HHW 20.02. Clothes moths. HHW 20.03. Fleas. HHW 20.04. Garden insect pests. HHW 20.05. Laundry detergent. HHW 20.06. Lawn care. HHW 20.07. Lead, reducing exposure in older homes. HHW 20.08. Paints, solvents, and wood preservatives. HHW 20.09. Plants appropriate for northwest landscapes. HHW 20.10. Safer cleaning products. HHW 20.11. A safer home: reducing your use of hazardous products. HHW 20.12. Spiders, ants, flies, and cockroaches. HHW 20.13. Tent caterpillars, managing without chemicals. HHW 20.14. Weed management for the lawn and garden. HHW 20.15. 3. Baseline Studies City of Kirkland survey of HHW issues. June 1990. HHW 30.01. A database of safer substitutes for household products. Phase 1. (Washington Toxics Coalition). HHW 30.02. A database of safer substitutes for household products. Phase 2. (Washington Toxics Coalition). HHW 30.03. A database of safer substitutes for household products. Phase 3. (Washington Toxics Coalition). HHW 30.04. King County residential opinion survey of household hazardous waste issues: baseline 1990. King County residential opinion survey of household hazardous waste issues: round 2 (1991).. King County household hazardous waste survey. December 1992. F-7 4. Schools Program Green cleaning kits. HHW 40.01. Puget sound book. HHW 40.02. 5. Video Tapes Small business consultation team. (American Production Service, Seattle, WA) VID 10.01. Municipality of Metropolitan Seattle (Metro) Storm drain stencilling: hints and how-to-dos. (4 p.). Erosion control pays. 1984. (brochure). Are you pouring water quality down the drain? 1989. (brochure). Oil/water separator facts--Protect Puget Sound by keeping oil out of water. 1989. (2 p.). Metro school information program--water quality. 1986. (1 p.). City of Bellevue Stream team guidebook. 1988. (57 p.). Business Partners for clean water--Guidebooks: Water quality protection for construction businesses. Water quality protection for automotive businesses. Water quality protection for landscaping businesses. Water quality protection for food businesses. Water quality protection for maintenance businesses. Miscellaneous Waste disposal and erosion/sediment control methods. The Associated General Contractors of Washington, 1988. (40 p.). Guidebook--Water quality swales. National Association of Industrial and Office Parks. 1991. (25 p.). A citizen's guide to clean water. Izaak Walton League of America, 1990. Citizen's handbook on water quality standards. Natural Resources Defense Council. 1987. Controlling nonpoint-source water pollution--A citizen's handbook. Conservation Foundation/National Audubon Society, 1988. Save our streams kit. Izaak Walton League of America. Wetlands watch kit. Izaak Walton League of America. F-R APPENDIX. G Waiver Form, for Volunteers , APPENDIX G Waiver Form for Volunteers Sample Waiver Form for Volunteers STORM DRAIN STENCILING PROJECT LIABILITY WAIVER I, the undersigned, being of lawful age or the parent or legal guardian of the volunteer involved in the Storm Drain Stenciling Project (hereinafter referred to as "Project") , in consideration of being allowed to participate in the Project, I hereby release, discharge and forever acquit the City of , a municipal corporation, and its officers, agents, and employees from any and all actions, causes of action, claims or any other liabilities whatsoever, known or unknown, or may- arise --in the future, on account of or- in any -way related to or arising out of my participation in the Project. Further, I assume liability for any non-participants who accompany me. PARTICIPANT'S NAME: (please print) AGE: SIGNATURE OF PARTICIPANT OR LEGAL GUARDIAN: DATE: Source: Ecology(1992b). G-1 i I V 1 ! I U � i I ii I U i ' I u U v � I U ii U U U �J L� ' i II � i I u J i I,