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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
105B, 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
207CHR_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
307CHR04...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
407CHR23...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
507CHR07...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
607GRN_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
707GRN02...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
807GRN07...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
9SEN0660...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
1007PAT001...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
1107PAT231...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
1207HAR07...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
1307HAR02...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
1453E, 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
1507PAT_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
1607PAT228...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
1707PAT166...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
1807PAT_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
1907PAT187...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
2007RAG01...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
2107RAG00...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
2207RAG02...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
2307TKL047...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
2407TKL072...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
2507LNT16...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
26NFTolt_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
401079262541046.2%9.2%0.8%50081.78.710.08.610.010.02.510.08.04.19.8Details
27NFTolt_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
3486923202753.8%2.4%0.0%50067.96.110.07.110.08.10.010.05.90.710.0Details
28NFTolt_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
3885922206964.4%7.4%0.0%50072.87.810.05.710.08.15.010.02.93.210.0Details
29Tolt_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
30Tolt_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
31Edg, 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
32Gle, 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
33Jap, 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
34Mer, 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
35Pig1, 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
36Pig2, 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
37Pow, 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
38Woo, 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
39TTW044H...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
40TTW044H...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
4107LMS02...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
4207LMS03...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
4307LMS05...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
4407LMS09...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
4507LMS10...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
4607LMS21...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
4707SFS00...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
4807SFS011...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
4907SFS011...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
5007SFS04...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
5107SFS06...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
51 scores generated from 2610 sample taxa on Monday, February 23, 2026 11:53:20 PM. (0.05 seconds)
LegendExcellentExcellent/GoodGoodGood/FairFairFair/PoorPoorPoor/Very PoorVery Poor