163161631610702920901904/13/1992 12:00:00 AM1.00Streams and RiversPipersKSHZ06Pipers Creek mouthTotal Phosphorus0.07mg/L2.070||King County Nstream Database/B53311noneKCEL 23973323973391532L87963-2703/10/2026 08:01:00 AM50.00Large LakesLake Washington0852Lake Washington Madison ParkNitrite + Nitrate Nitrogen0.156mg/L10.010.04SM4500-NO3-F03/13/2026KCEL 8937893737688791548906/20/1979 12:00:00 AM1.00Streams and RiversCrisp0321Crisp Creek mouth at SE Green Valley RdNitrite + Nitrate Nitrogen0.727mg/L2.727||King County Nstream Database/RS2KCEL 12827112827149589L8916-3607/01/1996 02:52:00 PM5.00Large LakesLake Washington0831Lake Washington mid-lake southTurbidity, Field0NTU2NONEKCEL 13774513774554368L58228-106/25/2013 08:09:00 AM1.00Large LakesLake Union/Ship Canal0512Ship Canal above locksTemperature18.9deg C2HYDROLAB06/25/2013KCEL 10571210571247440L30552-3412/03/2003 02:56:00 PM10.00Large LakesLake Washington0890Lake Washington south of I-90Dissolved Oxygen Saturation, Field78.8%2KCEL 13181613181650605L55068-602/13/2012 09:38:00 AM1.00Large LakesLake Union/Ship Canal0540Ship Canal near Montlake BridgeOrthophosphate Phosphorus0.00724mg/L20.0020.005SM4500-P-F02/15/2012KCEL 823258232543896L52933-8703/30/2011 02:36:00 PM4.20Large LakesLake Washington0804Lake Washington north endTemperature8.94deg C2HYDROLABKCEL 600916009142106L29749-5409/02/2003 01:44:00 PM1.00Large LakesLake Washington0852Lake Washington Madison ParkTemperature21.9deg C2KCEL 18334318334378767L73352-509/23/2019 08:28:00 AM2.10Large LakesLake Union/Ship CanalA522Lake Union near west shoreChlorophyll, Field1.2ug/L10.51KCEL SOP# 24509/23/2019KCEL 23958423958491537L87963-4003/11/2026 09:33:00 AM1.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralSecchi Transparency4.3m1NONE03/11/2026KCEL 23959023959091539L88073-1103/11/2026 08:55:00 AM17.00Large LakesLake Sammamish0611Lake Sammamish mid-lake northConductivity, Field111umhos/cm10.510KCEL SOP# 24503/11/2026KCEL 3072735586L51321-808/03/2010 01:30:00 PMStreams and RiversMay0440May Creek at Lake Washington Blvd NAmmonia Nitrogenmg/L2<MDL0.0050.01KEROUEL & AMINOT 199708/09/2010KCEL 23972023972091538L87963-303/10/2026 11:57:00 AM1.00Large LakesLake Union/Ship CanalA522Lake Union near west shoreSecchi Transparency4m1NONE03/10/2026KCEL 23951223951291523L87698-802/11/2026 12:50:00 PM1.00Marine OffshoreWhidbeyPENNCOVEENTPenn Cove entranceDensity1013.54kg/m31CTD02/11/2026KCEL 16897116897174937L46915-1811/18/2008 02:30:00 PM10.10Marine OffshoreCentral Puget SoundLSVV01Fauntleroy CoveAmmonia Nitrogenmg/L1<MDL0.010.02SM4500-NH3-G (330V4)11/19/2008KCEL 15653968254L70197-106/12/2018 08:55:00 AMStreams and RiversIdylwoodA620Idylwood Creek mouth at Idylwood ParkOrthophosphate Phosphorus0.0832mg/L20.00050.002SM4500-P-F06/14/2018KCEL 18233718233778540L72858-10907/22/2019 12:30:00 PM5.10Large LakesLake Washington0831Lake Washington mid-lake southDissolved Oxygen, Field9.72mg/L10.51KCEL SOP# 24507/22/2019KCEL 17523717523776190L46537-210/20/2008 02:22:00 PM1.10Marine OffshoreCentral Puget SoundLTKE03Duwamish River - Harbor Island MarinaLight Transmissivity70.2% light10.010.01CTD (SOP 220V3)KCEL 924909249044421L63005-6106/08/2015 11:14:00 AM25.00Large LakesLake Washington0826Lake Washington off Sand PointDissolved Oxygen, Field9.61mg/L10.51KCEL SOP# 24506/08/2015KCEL 23935123935191509L87700-2602/18/2026 10:52:00 AM25.00Marine OffshoreCentral Puget SoundMSJN02Vashon OutfallChlorophyll a0.374ug/L10.10.2EPA 445.003/17/2026KCEL 2277219978L19003-110/12/2000 09:42:00 AMStreams and RiversLongfellowC370Longfellow Creek at SW Yancy StStorm Or Non-Stormnone2NNONEKCEL 14280714280755532L53334-3306/21/2011 01:37:00 PM169.00Marine OffshoreCentral Puget SoundNSEX01East PassageNitrite + Nitrate Nitrogen0.287mg/L10.010.04SM4500-NO3-F06/22/2011KCEL 23970223970291537L87963-4403/11/2026 09:19:00 AM20.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralTotal Nitrogen0.369mg/L10.050.2SM4500-N-C03/17/2026KCEL 23949823949891504L87699-3602/17/2026 11:26:00 AM55.00Marine OffshoreCentral Puget SoundLTED04South Central Elliott BaySilica4mg/L10.050.2WHITLEDGE 198102/19/2026KCEL 23943623943691502L87699-3002/17/2026 10:57:00 AM14.90Marine OffshoreCentral Puget SoundLTBC43Elliott West OutfallLight Transmissivity89.6% light10.010.02CTD02/17/2026KCEL 17175217175275437L31725-204/27/2004 12:00:00 AM15.30Marine OffshoreCentral Puget SoundCK200PCarkeek OutfallEnterococcus0CFU/100ml1SM-9230 C ed.1704/30/2004KCEL 23963123963191535L88073-6503/11/2026 10:30:00 AM25.00Large LakesLake SammamishSAMMBUOYLake Sammamish YSI Profiler BuoyDissolved Oxygen Saturation, Field97.2%1510KCEL SOP# 24503/11/2026KCEL 23973723973791536L88072-4403/10/2026 08:42:00 AM12.00Large LakesLake WashingtonWABUOYLake Washington YSI Profiler BuoyDissolved Oxygen Saturation, Field95.3%1510KCEL SOP# 24503/10/2026KCEL 13811513811554349L13491-1306/02/1998 03:57:00 PM1.00Large LakesLake Union/Ship Canal0512Ship Canal above locksConductivity147umhos/cm20.51SM2510-B06/03/1998KCEL 1893335637L15912-707/13/1999 10:47:00 AMStreams and RiversGreen0311Green River at InterurbanNitrite + Nitrate Nitrogen0.279mg/L20.020.04SM4500-NO3-F (03-03-012-000)07/13/1999KCEL 12709812709849642L63832-2909/28/2015 02:47:00 PM1.20Large LakesLake Washington0831Lake Washington mid-lake southOrthophosphate Phosphorusmg/L3<MDL,H0.00050.002SM4500-P-F10/01/2015KCEL 23950523950591499L87699-2802/17/2026 10:31:00 AM55.00Marine OffshoreCentral Puget SoundKSSK02West Point OutfallDissolved Oxygen, Field7.1mg/L10.51CTD02/17/2026KCEL 480304803042339L26554-1312/03/2002 11:31:00 AM25.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralAmmonia Nitrogen0.0335mg/L20.010.02SM4500-NH3-G (03-03-012-002)12/04/2002KCEL 12082512082549846L28114-3705/05/2003 12:44:00 PM20.60Large LakesLake Washington0831Lake Washington mid-lake southTotal Nitrogen0.27mg/L20.050.1SM4500-N-C (03-03-013-001)05/13/2003KCEL 15839215839268705L71034-11709/24/2018 11:52:00 AM13.10Large LakesLake Washington0831Lake Washington mid-lake southChlorophyll, Field0.5ug/L1<RDL0.51KCEL SOP# 24509/24/2018KCEL 648196481942157L50030-2201/11/2010 09:32:00 AM22.00Large LakesLake Washington0852Lake Washington Madison ParkpH, Field7.28pH2HYDROLABKCEL 12704112704150526L63507-9907/29/2015 01:26:00 PM12.90Large LakesLake Washington0831Lake Washington mid-lake southConductivity, Field93.2umhos/cm10.510KCEL SOP# 24507/29/2015KCEL 425642561052L66495-1211/07/2016 10:56:00 AM196.00Marine OffshoreCentral Puget SoundKSBP01Jefferson HeadNitrite + Nitrate Nitrogen0.387mg/L10.010.04SM4500-NO3-F11/09/2016KCEL 1829015730L14391-811/10/1998 12:45:00 PMStreams and RiversTibbettsX630Tibbetts Creek mouth at footbridgeTotal Phosphorus0.0347mg/L20.0050.01SM4500-P-B,F Modified11/12/1998KCEL 2476027461L27137-802/10/2003 11:31:00 AMStreams and RiversGeorge DavisA690George Davis Creek mouth at E Lake Sammamish PkwyStorm Or Non-Stormnone2NNONEKCEL 23950923950991515L87698-1102/11/2026 01:15:00 PM1.00Marine OffshoreWhidbeyPENNCOVECWPenn Cove - Coupeville wharfPheophytin a3.02ug/L10.542.17EPA445.003/11/2026KCEL 23937123937191521L87649-2102/02/2026 09:42:00 AM100.00Marine OffshoreCentral Puget SoundJSUR01Point WellsLight Intensity (PAR)0umol/sm21CTD02/02/2026KCEL 15850968745L71093-810/15/2018 09:55:00 AMStreams and RiversPatterson CreekPATTER_3Patterson Creek mouth at W Snoqualmie River Rd SEOrthophosphate Phosphorus0.028mg/L20.00050.002SM4500-P-F10/16/2018KCEL 23954623954691539L88073-403/11/2026 08:48:00 AM5.00Large LakesLake Sammamish0611Lake Sammamish mid-lake northpH, Field7.43pH1KCEL SOP# 24503/11/2026KCEL 23937223937291529L87649-2602/02/2026 10:47:00 AM25.00Marine OffshoreCentral Puget SoundKSSK02West Point OutfallAmmonia Nitrogen0.0038mg/L1<RDL0.0020.01KEROUEL & AMINOT 199702/04/2026KCEL 2316339371L19959-1103/05/2001 12:28:00 PMStreams and RiversBear0484Bear Creek downstream of Redmond WayStorm Or Non-Stormnone2NNONEKCEL 48494849974L65564-2907/05/2016 12:10:00 PM15.30Marine OffshoreCentral Puget SoundLTED04South Central Elliott BayLight Transmissivity91% light10.010.02CTD07/05/2016KCEL 25372537128L62977-406/16/2015 08:48:00 AM34.90Marine OffshoreCentral Puget SoundLSEP01South Plant OutfallTemperature11.8deg C1CTD06/16/2015KCEL 70797079287L61470-2811/04/2014 01:55:00 PM14.90Marine OffshoreCentral Puget SoundNSEX01East PassageSalinity, Field30.2PSS1CTD11/04/2014KCEL 11465911465949049L11765-2409/03/1997 05:32:00 PM1.00Large LakesLake Washington0832Lake Washington near Coal CreekDissolved Oxygen10.1mg/L20.51SM4500-O-BKCEL 17529817529876200L69164-201/16/2018 01:28:00 PM1.10Marine OffshoreCentral Puget SoundLTKE03Duwamish River - Harbor Island MarinaDensity1005.21kg/m31CTD01/16/2018KCEL 305635531L50514-304/06/2010 08:09:00 AMStreams and RiversJuddVA42AJudd Creek near end of SW 225th StTurbidity5.41NTU20.20.5SM2130-B04/07/2010KCEL 23941423941491500L87699-302/17/2026 08:01:00 AM24.90Marine OffshoreCentral Puget SoundCK200PCarkeek OutfallSurface Light Intensity (PAR)115umol/sm21CTD02/17/2026KCEL 959639596345182921286909/09/1992 12:00:00 AM1.00Large LakesLake Sammamish0614Lake Sammamish near Issaquah CreekEnterococcus2MPN/100g6E2||King County Lakes Database/B53301LKCEL 461454614541384890617406/07/1989 12:00:00 AM5.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralAmmonia Nitrogen0.003mg/L2.003||King County Lakes Database/B53301KCEL 10286310286346498L4443-1509/07/1994 10:16:00 AM1.00Large LakesLake Sammamish0622Lake Sammamish near George Davis CreekSecchi Transparency5.5m2KCEL 23964723964791537L88073-1903/11/2026 09:18:00 AM5.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralChlorophyll, Field8.6ug/L10.51KCEL SOP# 24503/11/2026KCEL 3077619207L51654-309/09/2010 10:48:00 AMStreams and RiversJuddVA42AJudd Creek near end of SW 225th StpH, Field7.77pH2HYDROLABKCEL 23939023939091494L87651-2502/03/2026 12:16:00 PM15.00Marine OffshoreCentral Puget SoundMSJN02Vashon OutfallTemperature9.82deg C1CTD02/03/2026KCEL 125041250416223851550910/16/1985 12:00:00 AM1.00Streams and RiversMcAleerA432McAleer at Bothell Way NEDissolved Oxygen10.1mg/L210.10||King County Nstream Database/RS4KCEL 982589825845792L19152-1210/30/2000 10:41:00 AM3.00Large LakesLake Washington0817Lake Washington near Thornton CreekTotal Organic Carbon3.1mg/L20.51SM5310-B (03-04-001-002)11/06/2000KCEL 16687673117L53682-507/19/2011 09:30:00 AMMarine IntertidalCentral Puget SoundLSVW01Fauntleroy Cove BeachFecal Coliform52CFU/100ml1SM 9222D 20TH07/20/2011KCEL 494384943841453L39414-1506/06/2006 10:11:00 AM2.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralpH, Field8.7pH2Hydrolab (02-01-005-002)KCEL 10760910760947577L43403-10907/23/2007 02:11:00 PM12.00Large LakesLake Washington0890Lake Washington south of I-90Conductivity, Field96.7umhos/cm20.510Hydrolab (02-01-005-002)KCEL 9853985338137811512902/26/1981 12:00:00 AM1.00Streams and RiversNewaukum0322Newaukum Creek mouth at 212th Way SEAmmonia Nitrogen0.149mg/L2.149||King County Nstream Database/RS3KCEL 16252869884L72298-705/14/2019 12:29:00 PMStreams and RiversBearC484Bear Creek at NE 95th StE. coli100CFU/100ml2SM 9213D3B 23RD05/15/2019KCEL 23946923946991496L87699-1602/17/2026 10:01:00 AM5.00Marine OffshoreCentral Puget SoundJSUR01Point WellsTemperature9.1deg C1CTD02/17/2026KCEL 328486368L60004-804/07/2014 11:24:00 AMStreams and RiversIssaquahA631Issaquah Creek upstream of hatcheryStorm Or Non-Stormnone2NNONE04/07/2014KCEL 829998299943624L8916-1407/01/1996 12:09:00 PM4.00Large LakesLake Washington0804Lake Washington north endpH, Field7.5pH2NONEKCEL 546955469541382L60016-3704/14/2014 01:23:00 PM1.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralOrthophosphate Phosphorusmg/L2<MDL0.00050.002SM4500-P-F04/18/2014KCEL 734037340343378L19791-901/29/2001 10:34:00 AM13.80Large LakesLake Union/Ship CanalA522Lake Union near west shoreTotal Phosphorus0.0104mg/L20.0050.01SM4500-P-B,Fmod(03-03-013-000)02/05/2001KCEL 10908110908147444L9381-4209/04/1996 03:48:00 PM1.00Large LakesLake Washington0890Lake Washington south of I-90Enterococcus2CFU/100ml2SM-9230 C ed.17KCEL 18610779165L73614-511/12/2019 11:12:00 AMStreams and RiversPine LakeA680Pine Lake Creek mouth at E Lake Sammamish PkwyTotal Suspended Solids4.8mg/L10.51SM2540-D11/15/2019KCEL 14977114977158076741701511/27/1974 12:00:00 AM1.00Large LakesLake Union/Ship Canal0526Lake Union mid-lakeTotal Suspended Solids1mg/L21.00||King County Nstream Database/LUNKCEL 15476567935L69651-403/14/2018 11:05:00 AMStreams and RiversCrisp0321Crisp Creek mouth at SE Green Valley RdTotal Suspended Solids7.6mg/L20.51SM2540-D03/22/2018KCEL 714957149541960L68087-5506/26/2017 10:54:00 AM11.10Large LakesLake Washington0852Lake Washington Madison ParkTemperature17deg C1KCEL SOP# 24506/26/2017KCEL 789137891342424L66346-509/26/2016 08:15:00 AM3.00Large LakesLake Union/Ship CanalA522Lake Union near west shoreChlorophyll, Field2.6ug/L10.51KCEL SOP# 24509/26/2016KCEL 17626717626776756L58001-106/17/2013 09:33:00 AM1.00Marine OffshoreCentral Puget SoundLSEP01South Plant OutfallSilica2.16mg/L10.050.1WHITLEDGE 198106/19/2013KCEL 4403240985L61762-5012/15/2014 09:40:00 AMLarge LakesLake Sammamish0611Lake Sammamish mid-lake northSampling Methodnone211042,NONEKCEL 23970923970991537L88073-2903/11/2026 09:29:00 AM15.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralTemperature7.96deg C1KCEL SOP# 24503/11/2026KCEL 2996727042L47160-801/06/2009 12:30:00 PMStreams and RiversSammamish0450CCSammamish River at NE 145th StpH, Field7.17pH2HYDROLAB (SOP 205V4)KCEL 548705487041879L60587-1706/23/2014 09:59:00 AM3.00Large LakesLake Sammamish0612Lake Sammamish mid-lake centralDissolved Oxygen Saturation, Field102%2HYDROLAB06/23/2014KCEL 123601236030713851532407/17/1985 12:00:00 AM1.00Streams and RiversForbes0456Forbes Creek backwaterOrthophosphate Phosphorus0.081mg/L2.081||King County Nstream Database/RS4KCEL 692966929641837L62475-3703/24/2015 11:22:00 AM12.00Large LakesLake Washington0852Lake Washington Madison ParkDissolved Oxygen Saturation, Field101%1KCEL SOP# 24503/24/2015KCEL 23948423948491491L87699-702/17/2026 08:45:00 AM1.60Marine OffshoreCentral Puget SoundKSBP01Jefferson HeadChlorophyll a1.1ug/L10.10.2EPA 445.003/16/2026KCEL 21092109542L64989-3004/06/2016 12:05:00 PM25.20Marine OffshoreCentral Puget SoundLTED04South Central Elliott BayNitrite + Nitrate Nitrogen0.367mg/L10.010.04SM4500-NO3-F04/07/2016KCEL 829508295044083L7446-1512/04/1995 10:31:00 AM8.00Large LakesLake Washington0804Lake Washington north endpH, Field7.03pH2NONEKCEL 10794210794247677L45007-6901/16/2008 11:01:00 AM5.10Large LakesLake Washington0890Lake Washington south of I-90Conductivity, Field96.5umhos/cm20.510Hydrolab (02-01-005-002)KCEL 840484046690771522507/19/1977 12:00:00 AM1.00Streams and RiversGreenB319Green River at 212th Way SEConductivity82umhos/cm282||King County Nstream Database/RVLKCEL 8067806736071751534106/24/1975 12:00:00 AM1.00Streams and RiversIssaquah0631Issaquah Creek at SE 56th StDissolved Oxygen11.2mg/L211.20||King County Nstream Database/RS1KCEL 11795011795049601L42578-12604/23/2007 02:00:00 PM5.10Large LakesLake Washington0840Lake Washington east of Mercer IslandConductivity, Field89.5umhos/cm20.510Hydrolab (02-01-005-002)KCEL 18412018412069017L71361-1212/17/2018 08:57:00 AM100.00Marine OffshoreCentral Puget SoundKSBP01Jefferson HeadSilica3.38mg/L10.050.1WHITLEDGE 198112/19/2018KCEL 2772716912L40017-808/16/2006 12:11:00 PMStreams and RiversCovingtonC320Covington Creek at SE Auburn-Black Diamond RdConductivity, Field132umhos/cm20.510Hydrolab (02-01-005-002)KCEL 576885768841546L10146-501/23/1997 09:20:00 AM60.00Large LakesLake Washington0852Lake Washington Madison ParkTotal Alkalinity34.2mg CaCO3/L20.21SM2320-BKCEL 706207062041950L65864-7007/26/2016 11:18:00 AM20.10Large LakesLake Washington0852Lake Washington Madison ParkBGA PC, Fieldug/L1<MDL0.51KCEL SOP# 24507/26/2016KCEL 588515881042191L2010-1009/07/1993 12:00:00 AM1.00Large LakesLake Washington0852Lake Washington Madison ParkOrthophosphate Phosphorus0.003mg/L2<RDL0.0020.005SM4500-P-FKCEL 23967423967491532L87963-2403/10/2026 08:03:00 AM25.00Large LakesLake Washington0852Lake Washington Madison ParkAmmonia Nitrogen0.0045mg/L1<RDL0.0020.01KEROUEL & AMINOT 199703/13/2026KCEL 23974223974291540L88072-10003/10/2026 10:44:00 AM1.00Large LakesLake Washington0804Lake Washington north endConductivity, Field118umhos/cm10.510KCEL SOP# 24503/10/2026KCEL