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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
341089271961142.6%12.8%0.0%50087.78.610.010.010.08.25.010.010.05.910.0Details
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
35103619185548.0%4.6%2.4%50066.99.010.02.96.27.63.87.18.91.89.4Details
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
39881026207948.4%11.0%0.0%50088.910.010.010.010.08.86.210.08.85.010.0Details
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
293431054055.9%16.0%8.5%46940.76.22.94.32.50.02.50.06.97.58.0Details
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
222261085154.5%19.8%37.1%20236.92.91.41.46.21.83.81.47.29.41.4Details
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
23222665041.9%15.9%16.8%32735.33.31.41.41.20.63.80.010.07.56.1Details
705B, Cher...Site Code: 05BCherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Regul...10/3/2022
Regulatory Effectiveness
King County - DNRP
3769722167445.4%15.0%0.4%50079.610.07.110.07.56.56.25.79.67.09.9Details
807CHR_b...Site Code: 07CHR_bug1Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Integr...8/21/2024
Integrated Streams Program
King County - DNRP
2863716194357.4%2.4%19.8%50050.85.77.12.97.58.22.54.36.50.75.4Details
907CHR04...Site Code: 07CHR045515Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...9/3/2025
Ambient Monitoring
King County - DNRP
3596823225461.0%9.4%4.2%50073.29.010.07.18.810.03.85.75.54.29.0Details
1007CHR23...Site Code: 07CHR234411Cherry CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/27/2024
Ambient Monitoring
King County - DNRP
3789926257639.6%12.8%14.8%50087.310.010.010.010.010.06.28.610.05.96.6Details
1107CHR07...Site Code: 07CHR070059Margaret CreekCherry Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...9/3/2025
Ambient Monitoring
King County - DNRP
411099282781036.6%14.8%0.4%50094.310.010.010.010.010.07.510.010.06.99.9Details
1207GRN_b...Site Code: 07GRN_bug1Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Integr...8/21/2024
Integrated Streams Program
King County - DNRP
4287924277642.2%10.0%3.6%50087.110.010.08.610.010.06.28.610.04.59.2Details
1307GRN02...Site Code: 07GRN022903Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
3496924268751.6%8.6%7.4%50083.38.610.07.110.010.07.510.08.03.88.3Details
1407GRN07...Site Code: 07GRN077319Griffin CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
3877923268540.8%8.6%0.4%50085.510.08.68.610.010.07.57.110.03.89.9Details
15SEN0660...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
3596823267756.6%7.4%14.0%50077.89.010.07.18.810.06.210.06.73.26.7Details
1607PAT001...Site Code: 07PAT001415Mud CreekGriffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
2956718159561.2%5.0%39.6%50056.66.25.77.17.55.98.87.15.52.00.8Details
1707PAT231...Site Code: 07PAT231079Snoqualmie River tributary (0430)Griffin Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/15/2024
Ambient Monitoring
King County - DNRP
425910242214840.8%25.0%0.8%50095.510.05.710.010.010.010.010.010.010.09.8Details
1807HAR07...Site Code: 07HAR070087Ames CreekHarris Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
3052714145158.2%16.8%9.2%50053.86.75.71.47.55.33.81.46.37.97.9Details
1907HAR02...Site Code: 07HAR025863Snoqualmie River tributary (Harris Creek subbasin)Harris Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
37667192110649.6%10.0%1.2%50082.510.07.17.17.59.410.08.68.54.59.7Details
2053E, Weis...Site Code: 53EWeiss CreekHarris Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Regul...10/3/2022
Regulatory Effectiveness
King County - DNRP
3086721195757.8%7.8%19.4%50068.66.710.07.17.58.23.810.06.43.45.5Details
2107PAT_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
3478722206547.0%10.0%3.4%50078.58.68.610.07.58.85.07.19.24.59.2Details
2207PAT228...Site Code: 07PAT228627Coal Creek (Snoqualmie River)Kimball Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...8/21/2024
Ambient Monitoring
King County - DNRP
3687722198745.2%14.4%0.4%50087.69.510.08.67.58.27.510.09.76.79.9Details
2307PAT166...Site Code: 07PAT166087Canyon Creek (Snoqualmie River)Patterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/9/2024
Ambient Monitoring
King County - DNRP
387106232112756.4%4.2%1.4%50082.210.08.610.06.29.410.010.06.71.69.7Details
2407PAT_bu...Site Code: 07PAT_bug1Patterson CreekPatterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Integr...8/4/2025
Integrated Streams Program
King County - DNRP
2526412145259.4%3.8%2.6%50045.34.31.47.13.85.33.82.95.91.49.4Details
2507PAT187...Site Code: 07PAT187623Patterson CreekPatterson Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
2932712145258.8%4.2%1.4%50047.36.22.91.47.55.33.82.96.11.69.7Details
2607RAG01...Site Code: 07RAG018227Raging River tributaryRaging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2022, Ambi...9/1/2022
Ambient Monitoring
King County - DNRP
3798926248854.6%9.2%4.0%50087.910.010.010.010.010.07.510.07.24.19.1Details
2707RAG00...Site Code: 07RAG002867Snoqualmie River tributary (Raging River subbasin)Raging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP
45910123125131225.0%24.2%0.6%50099.910.010.010.010.010.010.010.010.010.09.9Details
2807RAG02...Site Code: 07RAG022147Snoqualmie River tributary (Raging River subbasin)Raging River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/12/2024
Ambient Monitoring
King County - DNRP
43712113023151048.4%17.8%4.0%50094.910.08.610.010.010.010.010.08.88.49.1Details
2907TKL047...Site Code: 07TKL047047Tokul CreekTokul Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2025, Ambi...8/26/2025
Ambient Monitoring
King County - DNRP
3098522218944.4%3.6%3.4%50079.06.710.010.05.09.47.510.09.91.39.2Details
3007TKL072...Site Code: 07TKL072439Tokul CreekTokul Creek SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2024, Ambi...9/9/2024
Ambient Monitoring
King County - DNRP
37879242210936.8%19.2%0.8%50097.510.010.08.610.010.010.010.010.09.19.8Details
3107LNT16...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
429119292291047.4%10.6%1.2%50092.410.010.010.010.010.08.810.09.14.89.7Details
32NFTolt_S...Site Code: NFTolt_STAF_S1R1Tolt River - N ForkTolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2023, NF T...9/7/2023
NF Tolt
Wild Fish Conservancy
361079262441049.8%9.0%0.8%50082.99.510.08.610.010.02.510.08.54.09.8Details
33NFTolt_S...Site Code: NFTolt_STAF_S2R1Tolt River - N ForkTolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2023, NF T...9/7/2023
NF Tolt
Wild Fish Conservancy
2986923182764.0%2.0%0.0%50066.26.210.07.110.07.60.010.04.70.510.0Details
34NFTolt_S...Site Code: NFTolt_STAF_S3R1Tolt River - N ForkTolt River SubbasinLower Snoqualmie BasinWRIA 7 - Snohomish2023, NF T...9/7/2023
NF Tolt
Wild Fish Conservancy
3285922196964.4%7.0%0.0%50074.27.610.05.710.08.25.010.04.63.010.0Details
35Tolt_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
26413893072.2%1.0%24.9%41821.94.84.30.02.52.41.20.02.60.04.2Details
36Tolt_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
3236817168151.8%9.8%13.2%50061.07.62.97.18.86.57.51.47.94.46.9Details
37Edg, Edg...Site Code: EdgEdgewater CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/14/2025
Ambient Monitoring
City of Everett
24143865068.2%7.2%15.8%50028.03.80.04.32.50.63.80.03.63.16.3Details
38Gle, Glen...Site Code: GleGlenwood CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
2436413106038.8%22.7%13.6%24252.33.82.97.13.82.95.00.010.010.06.8Details
39Jap, Japa...Site Code: JapJapanese CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
24233886056.7%10.6%28.0%49032.33.81.42.92.51.85.00.06.74.83.5Details
40Mer, Merri...Site Code: MerMerrill and Ring CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
2533410115069.4%3.0%30.6%50028.24.32.92.93.83.53.80.03.31.02.9Details
41Pig1, Pige...Site Code: Pig1Pigeon CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/12/2025
Ambient Monitoring
City of Everett
21123673068.7%11.4%26.9%29721.22.40.01.42.51.21.20.03.55.23.7Details
42Pig2, Pige...Site Code: Pig2Pigeon CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
2434310113063.8%15.1%15.1%19936.63.82.94.32.53.51.20.04.87.16.5Details
43Pow, Pow...Site Code: PowPowder Mill CreekEverett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/13/2025
Ambient Monitoring
City of Everett
2626412106055.8%14.3%6.4%26547.14.81.47.13.82.95.00.06.96.78.5Details
44Woo, Woo...Site Code: WooWoods Creek (Everett)Everett SubbasinSnohomish BasinWRIA 7 - Snohomish2025, Ambi...8/5/2025
Ambient Monitoring
City of Everett
21342995168.8%16.8%17.8%41635.52.42.94.31.22.43.81.43.57.95.9Details
45TTW044H...Site Code: TTW044HS-WFQC02Quilceda CreekQuilceda Creek SubbasinSnohomish BasinWRIA 7 - Snohomish2024, Tulali...8/6/2024
Tulalip Tribes Watershed Health Stream Monitoring
The Tulalip Tribes
24432994171.3%6.0%1.4%28233.53.84.32.91.22.42.51.42.82.59.7Details
46TTW044H...Site Code: TTW044HS-TULA01Tulalip CreekTulalip Creek SubbasinSnohomish BasinWRIA 7 - Snohomish2024, Tulali...9/3/2024
Tulalip Tribes Watershed Health Stream Monitoring
The Tulalip Tribes
3667821175246.0%6.2%10.0%50067.49.57.18.68.87.13.82.99.52.67.7Details
4707LMS02...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
361188272371046.4%17.0%0.6%50091.89.510.010.08.810.06.210.09.48.09.9Details
4807LMS03...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
3586822247344.0%8.4%6.2%50077.79.010.07.18.810.06.24.310.03.78.6Details
4907LMS05...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
416138272210834.0%19.4%0.6%50095.010.07.110.08.810.010.010.010.09.29.9Details
5007LMS09...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
3368620227472.4%6.8%1.6%50068.58.17.110.06.210.06.25.72.52.99.6Details
5107LMS10...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
3981010282310942.8%12.0%0.0%50095.510.010.010.010.010.010.010.010.05.510.0Details
5207LMS21...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
3577721268840.8%20.8%0.8%50090.99.08.68.67.510.07.510.010.09.99.8Details
5307SFS00...Site Code: 07SFS009443Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
37561021278445.8%9.8%4.6%50078.910.05.77.110.010.07.55.79.54.48.9Details
5407SFS011...Site Code: 07SFS011059Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP
3898926309761.8%9.6%3.8%50087.510.010.010.010.010.08.810.05.34.39.1Details
5507SFS011...Site Code: 07SFS011475Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
3575820249767.2%17.2%0.2%50082.89.08.65.78.810.08.810.03.98.110.0Details
5607SFS04...Site Code: 07SFS041891Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
2974718185477.0%4.0%0.0%50056.56.28.64.37.57.63.85.71.31.510.0Details
5707SFS06...Site Code: 07SFS066611Snoqualmie River - S Fork tributaryS Fork Snoqualmie SubbasinSnoqualmie Forks BasinWRIA 7 - Snohomish2025, Ambi...8/20/2025
Ambient Monitoring
King County - DNRP
352117201510256.8%16.6%1.0%50070.99.01.410.07.55.910.02.96.67.89.8Details
5808EAS24...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
2847617135158.4%16.6%1.2%50058.45.74.38.66.24.73.81.46.27.89.7Details
59CoalBelR...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
16122573094.0%0.4%1.8%50014.70.00.01.41.21.21.20.00.00.09.6Details
60CoalBelR...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
2846414135144.8%17.0%4.4%50057.55.74.37.13.84.73.81.49.88.09.0Details
61CoalLow_...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
18122584092.0%0.4%24.4%50012.21.00.01.41.21.82.50.00.00.04.3Details
62CoalRedt...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
2946313113164.2%15.2%4.6%50047.06.24.37.12.53.51.21.44.77.18.9Details
63CoalSkagi...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
16122574094.4%0.6%0.4%50016.30.00.01.41.21.22.50.00.00.09.9Details
6408EAS25...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
233351195146.1%7.6%9.0%49942.23.32.92.95.02.43.81.49.43.37.9Details
65Newcastle...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
221359105066.6%17.8%36.8%50031.32.90.02.95.02.93.80.04.18.41.4Details
66NewpBel...Site Code: NewpBelRM0.0Newport CreekCoal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue
15122550079.0%1.6%59.0%5003.80.00.01.41.20.00.00.00.80.30.0Details
6708EAS_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
24243996070.0%11.8%42.6%50028.03.81.44.32.52.45.00.03.25.40.1Details
68CochranKi...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
211541096078.2%8.6%52.8%50024.02.40.05.73.82.45.00.01.03.80.0Details
6908EAS_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
13100113083.8%1.4%40.8%5002.00.00.00.00.00.01.20.00.00.20.5Details
70YarrowMa...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
2444311125155.0%14.8%19.0%50043.83.84.34.32.54.13.81.47.16.95.6Details
71YarrowWe...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
18113564054.3%20.9%54.3%46823.81.00.00.02.50.62.50.07.310.00.0Details
72Lkhrst405...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
18122564079.6%1.6%67.0%5007.71.00.01.41.20.62.50.00.60.30.0Details
7308WES11...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
17122564079.6%1.6%44.0%5007.20.50.01.41.20.62.50.00.60.30.0Details
7408EAS15...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
2546414124168.4%4.4%6.2%50041.34.34.37.13.84.12.51.43.61.78.6Details
7508EAS21...Site Code: 08EAS2191Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, Ambi...8/15/2023
Ambient Monitoring
King County - DNRP
19121465054.2%0.8%39.2%50015.41.40.01.40.00.63.80.07.30.00.9Details
76ForbesKir...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
17122574059.2%1.2%31.3%40215.70.50.01.41.21.22.50.06.00.12.7Details
77ForbesKir...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%364.90.00.00.00.00.00.00.03.30.01.6Details
7808EAS_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
19132683044.8%4.0%27.2%50023.51.40.02.91.21.81.20.09.81.53.7Details
79BillyKirk1, ...Site Code: BillyKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/22/2023
B-IBI
City of Kirkland
17122542057.2%0.4%10.8%50017.20.50.01.41.20.00.00.06.50.07.5Details
80E1186, Ju...Site Code: E1186Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland
192248103073.0%2.6%40.4%50016.01.41.41.43.82.91.20.02.40.80.6Details
81HazenHill...Site Code: HazenHillsJuanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/24/2023
B-IBI
City of Kirkland
16121422071.4%1.6%62.7%4374.50.00.01.40.00.00.00.02.80.30.0Details
82JuanitaKir...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%5617.70.00.00.01.21.21.20.06.60.07.5Details
83JuanitaKir...Site Code: JuanitaKirk3Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2023, B-IBI ...8/22/2023
B-IBI
City of Kirkland
231247107071.8%3.0%16.2%50027.63.30.01.43.82.96.20.02.71.06.2Details
84JuanitaKir...Site Code: JuanitaKirk4Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/22/2024
B-IBI
City of Kirkland
14013482059.3%6.6%4.4%18222.00.00.00.02.51.80.00.06.02.89.0Details
85Kingsgate...Site Code: KingsgateKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland
18221574059.8%2.6%54.4%50014.11.01.41.40.01.22.50.05.80.80.0Details
8608EAS25...Site Code: 08EAS2546East CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/7/2025
Ambient Monitoring
King County - DNRP
11121431094.8%0.6%88.6%5001.40.00.01.40.00.00.00.00.00.00.0Details
87Goff132nd...Site Code: Goff132nd_21Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
10100121096.6%0.2%6.2%5008.60.00.00.00.00.00.00.00.00.08.6Details
88GoffBelR...Site Code: GoffBelRM1.4Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/21/2025
Macroinvertebrates
City of Bellevue
21214796076.2%4.2%61.8%50018.02.41.40.03.82.45.00.01.51.60.0Details
8908EAS22...Site Code: 08EAS2272Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...8/25/2025
Ambient Monitoring
King County - DNRP
17111365086.2%0.0%8.0%50013.00.50.00.00.00.63.80.00.00.08.1Details
90KelBelRM...Site Code: KelBelRM0.2Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
17202453073.4%0.2%24.6%50010.90.51.40.01.20.01.20.02.30.04.3Details
91KelBelRM...Site Code: KelBelRM2.3Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2022, Macr...8/15/2022
Macroinvertebrates
City of Bellevue
221258103066.6%1.0%8.0%50025.72.90.01.45.02.91.20.04.10.08.1Details
92KelBelRM...Site Code: KelBelRM2.4Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
21122575078.2%2.6%6.0%50020.42.40.01.41.21.23.80.01.00.88.6Details
93KelBelRM...Site Code: KelBelRM3.9Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue
11101230093.0%1.6%77.6%5000.30.00.00.00.00.00.00.00.00.30.0Details
94WestTribF...Site Code: WestTribFarmRM0.4Kelsey Creek, West TributaryKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...9/10/2025
Macroinvertebrates
City of Bellevue
19122566078.0%0.6%11.4%50018.11.40.01.41.20.65.00.01.10.07.3Details
95ValleyAPT...Site Code: ValleyAPTS_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
16112466048.0%3.6%26.4%50020.90.00.00.01.20.65.00.08.91.33.9Details
96ValleyBG...Site Code: ValleyBGC_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue
21112454078.2%0.6%5.8%50015.82.40.00.01.20.02.50.01.00.08.7Details
9708CED28...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
314531276153.2%18.8%17.8%50049.67.14.35.72.51.25.01.47.68.95.9Details
9808CED49...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
2986519187639.1%10.4%7.0%47373.96.210.07.15.07.66.28.610.04.78.4Details
9908CED27...Site Code: 08CED2711Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP
2325411115049.6%9.4%6.0%50042.83.31.45.73.83.53.80.08.54.28.6Details
10008CED24...Site Code: 08CED2433Maplewood CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish2024, Ambi...9/25/2024
Ambient Monitoring
King County - DNRP
2635513115257.0%3.0%12.6%50043.14.82.95.75.03.53.82.96.61.07.1Details
903 scores generated from 41956 sample taxa on Friday, February 6, 2026 8:01:22 AM. (34.51 seconds)
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LegendExcellentExcellent/GoodGoodGood/FairFairFair/PoorPoorPoor/Very PoorVery Poor