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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
108LAK31...Site Code: 08LAK3121Idylwood CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP
401157136046.3%8.0%31.6%32630.34.50.00.05.03.55.00.06.13.52.7Details
2IdylRed16...Site Code: IdylRed168Idylwood CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Annu...8/5/2025
Annual Benthos Monitoring: 2016 - Ongoing
City of Redmond
401124102041.4%3.4%29.4%50019.34.50.00.01.21.80.00.07.51.23.2Details
3IdylwoodA...Site Code: IdylwoodArdmore_21Idylwood CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue
381135105053.6%3.6%31.4%50020.03.80.00.02.51.83.80.04.21.32.7Details
4LewisBelo...Site Code: LewisBelowLakemont_21Lewis Creek (Lake Sammamish)W Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/21/2025
Macroinvertebrates
City of Bellevue
311528118052.8%4.0%31.4%50026.81.40.05.71.22.47.50.04.41.52.7Details
5LewisBel...Site Code: LewisBelRM0.3Lewis Creek (Lake Sammamish)W Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...8/28/2025
Macroinvertebrates
City of Bellevue
3233612144068.6%1.0%9.6%50028.21.72.92.96.24.12.50.00.10.07.8Details
6LewisBel...Site Code: LewisBelRM0.8Lewis Creek (Lake Sammamish)W Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
4133511156148.0%2.4%4.0%50042.14.82.92.95.04.75.01.45.70.79.1Details
7LewisBel...Site Code: LewisBelRM2.1Lewis Creek (Lake Sammamish)W Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/21/2025
Macroinvertebrates
City of Bellevue
45266141510042.0%9.4%8.2%50055.36.21.47.16.24.710.00.07.34.28.1Details
808LAK28...Site Code: 08LAK2827Vasa CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Ambi...9/15/2025
Ambient Monitoring
King County - DNRP
312327114066.4%1.6%22.4%50017.61.41.42.91.22.42.50.00.70.34.8Details
9VasaRM1....Site Code: VasaRM1.9Vasa CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue
33135976058.7%6.0%18.2%49926.02.10.02.95.00.05.00.02.82.55.8Details
10VillaRed1...Site Code: VillaRed124Villa Marina CreekW Lake Sammamish SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish2025, Annu...8/5/2025
Annual Benthos Monitoring: 2016 - Ongoing
City of Redmond
24101276069.4%3.2%6.8%50014.50.00.00.00.00.05.00.00.01.18.4Details
10 scores generated from 385 sample taxa on Wednesday, March 11, 2026 1:14:12 PM. (0.14 seconds)
LegendExcellentExcellent/GoodGoodGood/FairFairFair/PoorPoorPoor/Very PoorVery Poor