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Puget Sound Stream Benthos

Analysis: Benthic Index of Biotic Integrity

Area Project Location or Keyword
Aggregation Score Type Metric
Replicate Handling Taxonomic Resolution/STE (See lists) Taxa at Visit Metrics
Taxa Attributes (See lists) Taxa Mapping Taxa at Visit Filter
Number of Organisms Year
Min: Max: Range from through

RowSite Code,
Location
Year,
Project
QuantitiesScoresView
Samples
Taxa RichnessEphemeroptera RichnessPlecoptera RichnessTrichoptera RichnessEPT RichnessClinger RichnessLong-Lived RichnessIntolerant RichnessPercent DominantPredator PercentTolerant PercentNumber of OrganismsOverall ScoreTaxa RichnessEphemeroptera RichnessPlecoptera RichnessTrichoptera RichnessClinger RichnessLong-Lived RichnessIntolerant RichnessPercent DominantPredator PercentTolerant Percent
1BIO06600...Site Code: BIO06600-RACE77Racehorse CreekRacehorse Creek SubbasinN Fork Nooksack River BasinWRIA 1 - Nooksack2022, Ambi...9/7/2022
Ambient Freshwater Biological Monitoring Program
Washington State Department of Ecology
471089272261137.2%12.6%0.0%50085.16.910.010.010.08.85.010.08.65.810.0Details
2BIO06600...Site Code: BIO06600-CHUC02Chuckanut CreekBellingham Bay SubbasinWhatcom-Chuckanut BasinWRIA 1 - Nooksack2023, Ambi...8/15/2023
Ambient Freshwater Biological Monitoring Program
Washington State Department of Ecology
55103619225537.6%5.2%2.4%50068.59.710.02.96.28.83.87.18.52.19.4Details
3BIO06600...Site Code: BIO06600-AUST02Austin CreekLake Whatcom SubbasinWhatcom-Chuckanut BasinWRIA 1 - Nooksack2024, Ambi...8/5/2024
Ambient Freshwater Biological Monitoring Program
Washington State Department of Ecology
60881026247933.0%11.6%0.2%50091.210.010.010.010.010.06.210.09.75.310.0Details
4FOR, For...Site Code: FORFornsby CreekFidalgo Island SubbasinFidalgo BasinWRIA 3 - Lower Skagit / Samish2025, Swin...8/27/2025
Swinomish Indian Tribal Community Stream Bioassessment Monitoring
Swinomish Indian Tribal Community
453431084035.0%23.0%8.5%46946.26.22.94.32.50.62.50.09.210.08.0Details
5MUN, Mu...Site Code: MUNMunks CreekFidalgo Island SubbasinFidalgo BasinWRIA 3 - Lower Skagit / Samish2025, Swin...8/25/2025
Swinomish Indian Tribal Community Stream Bioassessment Monitoring
Swinomish Indian Tribal Community
302261085154.5%19.8%37.1%20230.61.01.41.46.20.63.81.43.99.41.4Details
6SNE, Sne...Site Code: SNESneeOosh CreekFidalgo Island SubbasinFidalgo BasinWRIA 3 - Lower Skagit / Samish2025, Swin...8/28/2025
Swinomish Indian Tribal Community Stream Bioassessment Monitoring
Swinomish Indian Tribal Community
34222685041.9%16.8%16.8%32732.22.41.41.41.20.63.80.07.37.96.1Details
707CHR_b...Site Code: 07CHR_bug1Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Integr...8/21/2024
Integrated Streams Program
King County - DNRP
4363716214352.8%2.8%19.8%50048.75.57.12.97.58.22.54.34.40.95.4Details
807CHR04...Site Code: 07CHR045515Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...9/3/2025
Ambient Monitoring
King County - DNRP
5996823285448.2%9.8%5.2%50074.210.010.07.18.810.03.85.75.64.48.8Details
907CHR23...Site Code: 07CHR234411Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/27/2024
Ambient Monitoring
King County - DNRP
5089926277639.6%13.8%15.2%50083.67.910.010.010.010.06.28.67.96.46.5Details
1007CHR07...Site Code: 07CHR070059Margaret CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...9/3/2025
Ambient Monitoring
King County - DNRP
601099283181032.4%15.4%0.4%50094.510.010.010.010.010.07.510.09.97.29.9Details
1107GRN_b...Site Code: 07GRN_bug1Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Integr...8/21/2024
Integrated Streams Program
King County - DNRP
5987924307642.2%10.8%3.8%50084.710.010.08.610.010.06.28.67.24.99.1Details
1207GRN02...Site Code: 07GRN022903Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
5296924308738.4%9.8%7.8%50084.18.610.07.110.010.07.510.08.34.48.2Details
1307GRN07...Site Code: 07GRN077319Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
4977923298538.0%9.2%0.8%50081.77.68.68.610.010.07.57.18.44.19.8Details
14SEN0660...Site Code: SEN06600-GRIF09Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Statu...7/2/2024
Status and Trends WA Statewide Sentinel Site Monitoring
Washington State Department of Ecology
5596823287747.4%8.0%14.6%50077.79.710.07.18.810.06.210.05.83.56.6Details
1507PAT001...Site Code: 07PAT001415Mud CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
4056718169561.2%5.0%39.6%50050.94.55.77.17.55.38.87.12.12.00.8Details
1607PAT231...Site Code: 07PAT231079Snoqualmie River tributary (0430)Griffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/15/2024
Ambient Monitoring
King County - DNRP
545910242314840.8%25.0%0.8%50091.99.35.710.010.09.410.010.07.610.09.8Details
1707HAR07...Site Code: 07HAR070087Ames CreekHarris Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
4852714155130.0%16.8%12.6%50056.77.25.71.47.54.73.81.410.07.97.1Details
1807HAR02...Site Code: 07HAR025863Snoqualmie River tributary (Harris Creek subbasin)Harris Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
49667192710649.6%10.2%1.2%50077.57.67.17.17.510.010.08.65.24.69.7Details
1907PAT_bu...Site Code: 07PAT_bug2Coal Creek (Snoqualmie River)Kimball Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Integr...9/9/2025
Integrated Streams Program
King County - DNRP
4578722236539.6%10.4%3.4%50075.76.28.610.07.59.45.07.17.94.79.2Details
2007PAT228...Site Code: 07PAT228627Coal Creek (Snoqualmie River)Kimball Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/21/2024
Ambient Monitoring
King County - DNRP
5387722228733.0%14.8%0.4%50087.99.010.08.67.58.87.510.09.76.99.9Details
2107PAT166...Site Code: 07PAT166087Canyon Creek (Snoqualmie River)Patterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/9/2024
Ambient Monitoring
King County - DNRP
477106232212753.0%4.2%1.6%50076.16.98.610.06.28.810.010.04.31.69.6Details
2207PAT_bu...Site Code: 07PAT_bug1Patterson CreekPatterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Integr...8/4/2025
Integrated Streams Program
King County - DNRP
3126412155259.4%3.8%2.6%50038.41.41.47.13.84.73.82.92.61.49.4Details
2307PAT187...Site Code: 07PAT187623Patterson CreekPatterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
4132712165258.8%4.6%1.6%50042.74.82.91.47.55.33.82.92.81.89.6Details
2407RAG01...Site Code: 07RAG018227Raging River tributaryRaging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Ambi...9/1/2022
Ambient Monitoring
King County - DNRP
4898926268854.6%9.2%4.0%50081.87.210.010.010.010.07.510.03.94.19.1Details
2507RAG00...Site Code: 07RAG002867Snoqualmie River tributary (Raging River subbasin)Raging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
59911123226141325.0%24.4%0.6%50099.910.010.010.010.010.010.010.010.010.09.9Details
2607RAG02...Site Code: 07RAG022147Snoqualmie River tributary (Raging River subbasin)Raging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/12/2024
Ambient Monitoring
King County - DNRP
58712113024161142.2%18.0%4.0%50093.410.08.610.010.010.010.010.07.28.59.1Details
2707TKL047...Site Code: 07TKL047047Tokul CreekTokul Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/26/2025
Ambient Monitoring
King County - DNRP
5298522248929.6%3.8%3.4%50081.78.610.010.05.010.07.510.010.01.49.2Details
2807TKL072...Site Code: 07TKL072439Tokul CreekTokul Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/9/2024
Ambient Monitoring
King County - DNRP
56879242410923.6%20.6%0.8%50098.210.010.08.610.010.010.010.010.09.89.8Details
2907LNT16...Site Code: 07LNT163403Lower S Fork Tolt River tributary (0303)Tolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/11/2024
Ambient Monitoring
King County - DNRP
549119292591038.0%12.0%1.2%50091.79.310.010.010.010.08.810.08.45.59.7Details
30Tolt_trib_l...Site Code: Tolt_trib_lowerUnnamed Tolt River tributary (0294)Tolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Unna...8/31/2022
Unnamed Tributary to Lower Tolt River 2022
Snoqualmie Tribe
414138134065.3%1.4%24.9%41823.14.84.30.02.53.52.50.01.00.24.2Details
31Tolt_trib_u...Site Code: Tolt_trib_upperUnnamed Tolt River tributary (0294)Tolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Unna...9/1/2022
Unnamed Tributary to Lower Tolt River 2022
Snoqualmie Tribe
4636817218149.4%10.6%13.4%50059.46.62.97.18.88.27.51.45.34.86.9Details
32Edg, Edg...Site Code: EdgEdgewater CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
City of Everett
34143865057.6%7.4%15.8%50025.62.40.04.32.50.03.80.03.13.26.3Details
33Gle, Glen...Site Code: GleGlenwood CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
3336413126036.8%22.7%13.6%24249.32.12.97.13.82.95.00.08.710.06.8Details
34Jap, Japa...Site Code: JapJapanese CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
30233886056.7%10.6%28.2%49025.01.01.42.92.50.65.00.03.34.83.4Details
35Mer, Merri...Site Code: MerMerrill and Ring CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
3433410115067.0%3.0%30.6%50022.42.42.92.93.82.43.80.00.51.02.9Details
36Pig1, Pige...Site Code: Pig1Pigeon CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/12/2025
Ambient Monitoring
City of Everett
29123683060.3%10.8%26.9%29717.50.70.01.42.50.61.20.02.44.93.7Details
37Pig2, Pige...Site Code: Pig2Pigeon CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
3234310113053.3%15.1%15.1%19932.81.72.94.32.52.41.20.04.27.16.5Details
38Pow, Pow...Site Code: PowPowder Mill CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
3226412106055.8%14.0%6.4%26539.41.71.47.13.81.85.00.03.66.58.5Details
39Woo, Woo...Site Code: WooWoods Creek (Everett)Everett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
263429105160.1%16.6%17.8%41631.40.02.94.31.21.83.81.42.47.85.9Details
40TTW044H...Site Code: TTW044HS-WFQC02Quilceda CreekQuilceda Creek SubbasinSnohomish BasinWRIA 7 - Snohomish2024, Tulali...8/6/2024
Tulalip Tribes Watershed Health Stream Monitoring
The Tulalip Tribes
374329124164.5%7.8%1.8%28232.93.44.32.91.22.92.51.41.23.49.6Details
41TTW044H...Site Code: TTW044HS-TULA01Tulalip CreekTulalip Creek SubbasinSnohomish BasinWRIA 7 - Snohomish2024, Tulali...9/3/2024
Tulalip Tribes Watershed Health Stream Monitoring
The Tulalip Tribes
6167821235228.6%7.2%10.4%50071.210.07.18.68.89.43.82.910.03.17.6Details
4207LMS02...Site Code: 07LMS026663Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2024, Ambi...9/4/2024
Ambient Monitoring
King County - DNRP
491188272671046.4%17.2%0.6%50086.77.610.010.08.810.06.210.06.18.19.9Details
4307LMS03...Site Code: 07LMS033235Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
4786822257342.8%8.4%7.0%50072.56.910.07.18.810.06.24.37.13.78.4Details
4407LMS05...Site Code: 07LMS055075Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP
526148282310831.4%19.4%0.6%50093.08.67.110.08.89.410.010.010.09.29.9Details
4507LMS09...Site Code: 07LMS093027Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2023, Ambi...9/21/2023
Ambient Monitoring
King County - DNRP
4168620247472.4%7.4%1.6%50063.04.87.110.06.210.06.25.70.03.29.6Details
4607LMS10...Site Code: 07LMS103591Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
57810102825111042.0%11.8%0.2%50092.710.010.010.010.010.010.010.07.35.410.0Details
4707LMS21...Site Code: 07LMS213875Snoqualmie River - Middle Fork tributary (Lower)Lower Middle Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP
5077721308833.2%21.4%1.2%50089.57.98.68.67.510.07.510.09.710.09.7Details
4807SFS00...Site Code: 07SFS009443Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
51561021318427.8%11.6%4.8%50078.58.35.77.110.010.07.55.710.05.38.9Details
4907SFS011...Site Code: 07SFS011059Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP
5298926339745.0%9.8%3.8%50087.48.610.010.010.010.08.810.06.54.49.1Details
5007SFS011...Site Code: 07SFS011475Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
5075820289755.2%18.0%0.6%50081.87.98.65.78.810.08.810.03.78.59.9Details
5107SFS04...Site Code: 07SFS041891Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
5284719245442.6%6.4%0.0%50069.78.610.04.37.510.03.85.77.12.710.0Details
5207SFS06...Site Code: 07SFS066611Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
502117201611351.2%16.6%1.2%50068.87.91.410.07.55.310.04.34.87.89.7Details
5308EAS24...Site Code: 08EAS2446Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/10/2025
Ambient Monitoring
King County - DNRP
3847617155158.4%16.6%1.2%50053.23.84.38.66.24.73.81.42.97.89.7Details
54CoalBelR...Site Code: CoalBelRM1.3Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...9/10/2025
Macroinvertebrates
City of Bellevue
18122573094.0%0.6%1.8%50013.50.00.01.41.20.01.20.00.00.09.6Details
55CoalBelR...Site Code: CoalBelRM4.0Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
3746414155141.2%17.0%4.4%50053.03.44.37.13.84.73.81.47.58.09.0Details
56CoalLow_...Site Code: CoalLow_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Macr...7/22/2024
Macroinvertebrates
City of Bellevue
19122584092.0%0.4%24.4%50010.10.00.01.41.20.62.50.00.00.04.3Details
57CoalRedt...Site Code: CoalRedtown_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue
3746313133164.2%15.4%4.8%50041.03.44.37.12.53.51.21.41.37.28.9Details
58CoalSkagi...Site Code: CoalSkagit_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
23122594093.2%0.8%0.4%50016.30.00.01.41.21.22.50.00.00.09.9Details
5908EAS25...Site Code: 08EAS2540Coal Creek (Lake Wash.) tributary (0273)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/7/2025
Ambient Monitoring
King County - DNRP
353351195146.1%8.0%9.0%49937.42.82.92.95.01.23.81.46.23.57.9Details
60Newcastle...Site Code: NewcastleTrib_21Coal Creek (Lake Wash.) tributary (0275)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue
291359125066.6%18.0%36.8%50025.80.70.02.95.02.93.80.00.68.51.4Details
61NewpBel...Site Code: NewpBelRM0.0Newport CreekCoal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue
21122560079.0%1.6%59.0%5003.00.00.01.41.20.00.00.00.00.30.0Details
6208EAS_b...Site Code: 08EAS_bug3Cochran Springs CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Integr...7/30/2025
Integrated Streams Program
King County - DNRP
322439106065.8%11.8%42.6%50023.11.71.44.32.51.85.00.00.95.40.1Details
63CochranKi...Site Code: CochranKirk1Cochran Springs CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/30/2024
B-IBI
City of Kirkland
2715410106063.0%8.6%52.8%50021.70.00.05.73.81.85.00.01.63.80.0Details
6408EAS_b...Site Code: 08EAS_bug1Fairweather CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Integr...8/25/2025
Integrated Streams Program
King County - DNRP
17100123083.8%5.0%43.8%5003.20.00.00.00.00.01.20.00.02.00.0Details
65YarrowMa...Site Code: YarrowMain_21Yarrow Creek SubbasinE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue
3444311135150.2%15.0%19.0%50039.92.44.34.32.53.53.81.45.17.05.6Details
66YarrowWe...Site Code: YarrowWestTribBelRM0.2Yarrow Creek SubbasinE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue
26113574054.3%21.2%54.3%46819.00.00.00.02.50.02.50.04.010.00.0Details
67Lkhrst405...Site Code: Lkhrst405RM0.3Lakehurst CreekE Lake Washington - Bellevue S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
25122564079.6%1.4%67.0%5005.40.00.01.41.20.02.50.00.00.20.0Details
6808WES11...Site Code: 08WES1178Lake Washington tributary (0056)E Lake Washington - Kenmore N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/24/2025
Ambient Monitoring
King County - DNRP
27122584065.4%1.6%44.2%5007.00.00.01.41.20.62.50.01.00.30.0Details
6908EAS15...Site Code: 08EAS1536Denny CreekE Lake Washington - Kenmore S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...9/18/2025
Ambient Monitoring
King County - DNRP
3646414124159.8%4.4%6.2%50037.93.14.37.13.82.92.51.42.51.78.6Details
7008EAS21...Site Code: 08EAS2191Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, Ambi...8/15/2023
Ambient Monitoring
King County - DNRP
33121495053.0%0.8%39.2%50013.62.10.01.40.01.23.80.04.30.00.9Details
71ForbesKir...Site Code: ForbesKirk1Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/28/2023
B-IBI
City of Kirkland
25122594050.5%1.2%35.1%40213.30.00.01.41.21.22.50.05.00.11.8Details
72ForbesKir...Site Code: ForbesKirk2Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...9/3/2024
B-IBI
City of Kirkland
7010132069.4%0.0%36.1%361.60.00.00.00.00.00.00.00.00.01.6Details
7308EAS_b...Site Code: 08EAS_bug4Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Integr...9/15/2025
Integrated Streams Program
King County - DNRP
361326143040.6%4.0%27.2%50025.43.10.02.91.24.11.20.07.71.53.7Details
74BillyKirk1, ...Site Code: BillyKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/22/2023
B-IBI
City of Kirkland
26122552052.6%0.8%14.0%50013.90.00.01.41.20.00.00.04.40.06.7Details
75E1186, Ju...Site Code: E1186Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland
292248133066.4%2.6%40.6%50014.10.71.41.43.83.51.20.00.70.80.6Details
76HazenHill...Site Code: HazenHillsJuanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/24/2023
B-IBI
City of Kirkland
22121443071.4%1.6%70.0%4373.00.00.01.40.00.01.20.00.00.30.0Details
77JuanitaKir...Site Code: JuanitaKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/22/2024
B-IBI
City of Kirkland
13112473057.1%0.0%10.7%5613.20.00.00.01.20.01.20.03.20.07.5Details
78JuanitaKir...Site Code: JuanitaKirk3Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/22/2023
B-IBI
City of Kirkland
331247147063.0%3.0%16.8%50026.32.10.01.43.84.16.20.01.61.06.1Details
79JuanitaKir...Site Code: JuanitaKirk4Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/22/2024
B-IBI
City of Kirkland
230134122059.3%6.6%4.4%18219.80.00.00.02.52.90.00.02.62.89.0Details
80Kingsgate...Site Code: KingsgateKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland
302215114052.6%3.0%54.8%50014.21.01.41.40.02.42.50.04.41.00.0Details
8108EAS25...Site Code: 08EAS2546East CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/7/2025
Ambient Monitoring
King County - DNRP
13121431094.8%0.6%88.6%5001.40.00.01.40.00.00.00.00.00.00.0Details
82Goff132nd...Site Code: Goff132nd_21Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
12100131096.6%0.2%6.2%5008.60.00.00.00.00.00.00.00.00.08.6Details
83GoffBelR...Site Code: GoffBelRM1.4Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/21/2025
Macroinvertebrates
City of Bellevue
312147116068.4%4.2%61.8%50015.71.41.40.03.82.45.00.00.21.60.0Details
8408EAS22...Site Code: 08EAS2272Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...8/25/2025
Ambient Monitoring
King County - DNRP
19111375086.2%0.0%8.0%50011.90.00.00.00.00.03.80.00.00.08.1Details
85KelBelRM...Site Code: KelBelRM0.2Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
31202493073.4%1.2%24.6%50010.91.41.40.01.21.21.20.00.00.14.3Details
86KelBelRM...Site Code: KelBelRM2.3Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2022, Macr...8/15/2022
Macroinvertebrates
City of Bellevue
321258133057.4%1.0%8.0%50024.21.70.01.45.03.51.20.03.10.08.1Details
87KelBelRM...Site Code: KelBelRM2.4Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
28122595076.6%3.0%6.0%50017.60.30.01.41.21.23.80.00.01.08.6Details
88KelBelRM...Site Code: KelBelRM3.9Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue
19101240084.8%1.6%77.6%5000.30.00.00.00.00.00.00.00.00.30.0Details
89WestTribF...Site Code: WestTribFarmRM0.4Kelsey Creek, West TributaryKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...9/10/2025
Macroinvertebrates
City of Bellevue
26122586078.0%0.6%11.4%50015.60.00.01.41.20.65.00.00.00.07.3Details
90ValleyAPT...Site Code: ValleyAPTS_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
25112486047.8%3.6%26.4%50017.70.00.00.01.20.65.00.05.71.33.9Details
91ValleyBG...Site Code: ValleyBGC_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
34112484043.8%0.6%6.2%50022.12.40.00.01.20.62.50.06.80.08.6Details
9208CED28...Site Code: 08CED2898Cedar River - Lower tributary (0311)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
534531296141.6%19.0%17.8%50051.39.04.35.72.51.25.01.47.49.05.9Details
9308CED49...Site Code: 08CED4975Hotel Creek (0342)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2022, Ambi...7/21/2022
Ambient Monitoring
King County - DNRP
4186519197630.9%11.0%7.0%47372.24.810.07.15.07.16.28.610.05.08.4Details
9408CED27...Site Code: 08CED2711Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
3425411135043.0%9.4%6.2%50040.42.41.45.73.83.53.80.07.04.28.6Details
9508CED24...Site Code: 08CED2433Maplewood CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Ambi...9/25/2024
Ambient Monitoring
King County - DNRP
3435513125254.2%3.0%13.0%50037.52.42.95.75.02.93.82.94.01.07.0Details
9608CED25...Site Code: 08CED2518Molasses CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Ambi...9/26/2024
Ambient Monitoring
King County - DNRP
3425411136063.8%8.8%8.6%50035.12.41.45.73.83.55.00.01.43.98.0Details
9708CED41...Site Code: 08CED4192Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Ambi...9/4/2024
Ambient Monitoring
King County - DNRP
527810252710840.6%6.0%15.2%50083.88.68.610.010.010.010.010.07.72.56.5Details
9808CED_b...Site Code: 08CED_bug1Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Ambi...8/14/2024
Ambient Monitoring
King County - DNRP
5361082425121160.6%10.4%0.6%50081.79.07.110.08.810.010.010.02.34.79.9Details
9908CED50...Site Code: 08CED5046Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...8/7/2025
Ambient Monitoring
King County - DNRP
62911113130141441.0%16.8%0.8%50095.310.010.010.010.010.010.010.07.67.99.8Details
10008WES_b...Site Code: 08WES_bug1Lyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Integr...8/25/2025
Integrated Streams Program
King County - DNRP
42245111610046.2%7.6%40.0%50041.35.21.44.35.05.310.00.06.23.30.7Details
830 scores generated from 38670 sample taxa on Friday, February 6, 2026 7:59:02 AM. (29.74 seconds)
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LegendExcellentExcellent/GoodGoodGood/FairFairFair/PoorPoorPoor/Very PoorVery Poor