For questions about the King County  Streams Monitoring Program, please contact Debra Bouchard (206) 477-4650, or Sally Abella (206) 477-4605.

Streams Water Quality Monitoring Data

The King County Streams Monitoring Program provides two methods to find and display information for each stream. You can find your stream on this list to access our database. Or you can find your stream on the Monitoring Data by Map link in the menu on the left.

StreamSampling LocationLocator IDWQ Data RangeView Stream InformationView WQI ReportView WQ GraphsDownload WQ DataMetals RangeView Metals GraphsDownload MetalsOrganic Data
Ames Creekupstream side of NE 100th St. Alternate1Ames_12011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Bear Creek95th Ave bridgeC4841974 to 2014Stream ReportWQ ScoreWQ GraphsDownload2001 to 2006Metals not availableMetals not availableAvailable
Bear CreekSeidel Rd bridgeJ4841974 to 2008Stream ReportWQ ScoreWQ GraphsDownload2006 to 2007Metals not availableMetals not availableAvailable
Bear CreekMouth04841971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Cedar RiverEast Jones Rd.A4381972 to 2008Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Cedar RiverMouth @ RM 1.4604382009 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableAvailable
Cedar RivermouthX4381996 to 2009Stream ReportWQ ScoreWQ GraphsDownload1996 to 2008Metals GraphsDownloadNot available
Cherry CreekCherry Creek at gaugeCherry_12011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
CHRISTENSEN CREEKChristensenVA23A2006 to 2007Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Coal CreekCoal04421972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableNot available
Cottage CreekCottage Lake CreekN4841974 to 2014Stream ReportWQ ScoreWQ GraphsDownload2006 to 2007Metals not availableMetals not availableAvailable
Crisp CreekupstreamF3211993 to 2014Stream ReportWQ ScoreWQ GraphsDownload2001 to 2003Metals GraphsDownloadNot available
Crisp Creekmouth03211972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableAvailable
Duwamish RiverDuwamish03091970 to 2008Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Ebright CreekEbrightA6851996 to 2014Stream ReportWQ ScoreWQ GraphsDownload1996 to 2008Metals GraphsDownloadAvailable
Eden CreekEdenA6901987 to 2008Stream ReportWQ ScoreWQ GraphsDownload1995 to 2003Metals not availableMetals not availableAvailable
Evans CreekMouth (at Bear)B4841971 to 2014Stream ReportWQ ScoreWQ GraphsDownload2006 to 2006Metals not availableMetals not availableAvailable
Evans CreekupstreamS4841981 to 2008Stream ReportWQ ScoreWQ GraphsDownload2006 to 2007Metals not availableMetals not availableAvailable
Fairweather CreekFairweather04981975 to 2008Stream ReportWQ ScoreWQ GraphsDownload1993 to 2007Metals GraphsDownloadAvailable
FISHER CREEKVA41AVA41A2006 to 2012Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals GraphsDownloadAvailable
Forbes CreekForbes04561979 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
GORSUCH CREEKGorsuchVA65A2006 to 2014Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Green RiverRenton junction03111970 to 2008Stream ReportWQ ScoreWQ GraphsDownload1994 to 2002Metals not availableMetals not availableNot available
Green RiverFort Dent Park31061970 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2007Metals not availableMetals not availableAvailable
Green RiverUpstream of SoosA3191972 to 2008Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Green RiverUpstream of NewaukumB3191972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Griffin Creekapprox 1.5 mi E of hwy 203 E Griffin Cr Rd SEGriffin2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Harris Creekbelow Carnation-Duvall Rd - upstream sideHarris_12011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Idylwood CreekIdylwoodA6201995 to 2014Stream ReportWQ ScoreWQ GraphsDownload1995 to 2008Metals GraphsDownloadAvailable
Issaquah Creekupstream of hatcheryA6311972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1995 to 2006Metals GraphsDownloadNot available
Issaquah Creekmouth of North ForkA6321972 to 2013Stream ReportWQ ScoreWQ GraphsDownload2001 to 2003Metals GraphsDownloadNot available
Issaquah Creekmouth06311972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Juanita Creekmouth04461975 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Juanita Creek@ 124thC4461976 to 2008Stream ReportWQ ScoreWQ GraphsDownload1999 to 1999Metals not availableMetals not availableNot available
JUDD CREEKJuddVA42A2006 to 2014Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Kelsey CreekKelsey Creek- West BranchD4441977 to 2008Stream ReportWQ ScoreWQ GraphsDownload2001 to 2007Metals GraphsDownloadNot available
Kelsey CreekKelsey Creek Mouth04441977 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Lewis CreekLewisA6171995 to 2014Stream ReportWQ ScoreWQ GraphsDownload1995 to 2008Metals GraphsDownloadAvailable
Little Bear CreekLittle Bear04781971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Little Bear Creekupstream at Snohomish 520 bridgeS4781974 to 2008Stream ReportWQ ScoreWQ GraphsDownload2002 to 2008Metals GraphsDownloadNot available
Longfellow Creekupstream at Brandon StJ3701992 to 2008Stream ReportWQ ScoreWQ GraphsDownload1992 to 2002Metals GraphsDownloadAvailable
Longfellow CreekLongfellowC3701979 to 2014Stream ReportWQ ScoreWQ GraphsDownload1992 to 2005Metals GraphsDownloadNot available
Lyon CreekLyon04301971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableAvailable
May CreekMay04401972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
McAleer CreekMcAleerA4321976 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Middle Fork SnoqualmieN of bridge on east. Sample above bridge R bankMFk_Snq2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
MILETA CREEKMiletaVA45A2006 to 2012Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Mill CreekMill-HillA3151977 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Newaukum CreekNewaukum03221972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableAvailable
North CreekMouth04741971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
North CreekUpstreamD4741974 to 2008Stream ReportWQ ScoreWQ GraphsDownload2001 to 2007Metals GraphsDownloadNot available
North Fork SnoqualmieSample under bridge on right bankNFk_Snq2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Patterson Creekfrom bridge at SnoqRiver Rd SEPatter_32011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Pine Lake CreekPine Lake CreekA6801987 to 2014Stream ReportWQ ScoreWQ GraphsDownload1995 to 2008Metals GraphsDownloadAvailable
Pipers CreekMouthKSHZ061987 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Pipers Creekupstream of Carkeek Park treatment facilityKTHA011988 to 2014Stream ReportWQI report not availableWQ GraphsDownload Metals not availableMetals not availableNot available
Pipers CreekUpstream main channelKTHA021987 to 2008Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableAvailable
Pipers CreekVenemaKTHA031987 to 2014Stream ReportWQ ScoreWQ GraphsDownload1999 to 1999Metals not availableMetals not availableAvailable
Raging RiverMouth of Raging from right bankRaging_mth2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Sammamish RiverMarymoor Park04861976 to 2014Stream ReportWQ ScoreWQ GraphsDownload2001 to 2004Metals GraphsDownloadAvailable
Sammamish RiverKenmore04501971 to 2008Stream ReportWQ ScoreWQ GraphsDownload2001 to 2008Metals GraphsDownloadNot available
Sammamish RiverSamm @ 145th Street0450CC2009 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableAvailable
SHINGLEMILL CREEKShinglemillVA12A2006 to 2012Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Skykomish RiverRB Skykomish mile marker 47.5Skykomish2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Snoqualmie RiverRBank boat launch Taylor LandingSnqDuvall2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Soos CreekJenkinsD3201972 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableAvailable
Soos CreekLittle SoosG3201972 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Soos CreekCovingtonC3201972 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Soos CreekFOOTBRIDGE AT HATCHERY NEAR MOUTH OF STREAMA3201972 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableNot available
South Fork SnoqualmieSample from trail bridge ds NBend blvdSFk_Snq2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Springbrook CreekSpringbrook03171977 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals not availableMetals not availableAvailable
Swamp Creekmouth04701971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Swamp CreekUpstream at Carter RdBB4701999 to 2008Stream ReportWQ ScoreWQ GraphsDownload2001 to 2007Metals GraphsDownloadNot available
TAHLEQUAH CREEKTahlequahVA37A2006 to 2007Stream ReportWQ ScoreWQ GraphsDownload2007 to 2007Metals not availableMetals not availableNot available
Thornton CreekThornton04341971 to 2014Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
Tibbetts CreekFootbridge in parkX6301997 to 2014Stream ReportWQ ScoreWQ GraphsDownload1997 to 2008Metals GraphsDownloadAvailable
Tolt RiverMouth of Tolt RB of river above confluenceTolt_mth2011 to 2014Stream ReportWQ ScoreWQ GraphsDownload Metals not availableMetals not availableNot available
Yarrow CreekYarrowA4991975 to 2008Stream ReportWQ ScoreWQ GraphsDownload1993 to 2008Metals GraphsDownloadAvailable
To top