| 1 | 08EAS24... Site Code: 08EAS2446Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/10/2025
Ambient Monitoring
King County - DNRP | 38 | 4 | 7 | 6 | 17 | 15 | 5 | 1 | 58.4% | 16.6% | 1.2% | 500 | 53.2 | 3.8 | 4.3 | 8.6 | 6.2 | 4.7 | 3.8 | 1.4 | 2.9 | 7.8 | 9.7 | Details |
| 2 | CoalBelR...Site Code: CoalBelRM1.3Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...9/10/2025
Macroinvertebrates
City of Bellevue | 18 | 1 | 2 | 2 | 5 | 7 | 3 | 0 | 94.0% | 0.6% | 1.8% | 500 | 13.5 | 0.0 | 0.0 | 1.4 | 1.2 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 9.6 | Details |
| 3 | CoalBelR...Site Code: CoalBelRM4.0Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue | 37 | 4 | 6 | 4 | 14 | 15 | 5 | 1 | 41.2% | 17.0% | 4.4% | 500 | 53.0 | 3.4 | 4.3 | 7.1 | 3.8 | 4.7 | 3.8 | 1.4 | 7.5 | 8.0 | 9.0 | Details |
| 4 | CoalLow_...Site Code: CoalLow_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...9/30/2025
Macroinvertebrates
City of Bellevue | 11 | 0 | 1 | 1 | 2 | 3 | 3 | 1 | 98.0% | 0.0% | 0.2% | 500 | 12.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 1.4 | 0.0 | 0.0 | 10.0 | Details |
| 5 | CoalRedt...Site Code: CoalRedtown_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue | 37 | 4 | 6 | 3 | 13 | 13 | 3 | 1 | 64.2% | 15.4% | 4.8% | 500 | 41.0 | 3.4 | 4.3 | 7.1 | 2.5 | 3.5 | 1.2 | 1.4 | 1.3 | 7.2 | 8.9 | Details |
| 6 | CoalSkagi...Site Code: CoalSkagit_21Coal Creek (Lake Wash.)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue | 23 | 1 | 2 | 2 | 5 | 9 | 4 | 0 | 93.2% | 0.8% | 0.4% | 500 | 16.3 | 0.0 | 0.0 | 1.4 | 1.2 | 1.2 | 2.5 | 0.0 | 0.0 | 0.0 | 9.9 | Details |
| 7 | 08EAS25...Site Code: 08EAS2540Coal Creek (Lake Wash.) tributary (0273)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/7/2025
Ambient Monitoring
King County - DNRP | 35 | 3 | 3 | 5 | 11 | 9 | 5 | 1 | 46.1% | 8.0% | 9.0% | 499 | 37.4 | 2.8 | 2.9 | 2.9 | 5.0 | 1.2 | 3.8 | 1.4 | 6.2 | 3.5 | 7.9 | Details |
| 8 | Newcastle...Site Code: NewcastleTrib_21Coal Creek (Lake Wash.) tributary (0275)Coal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue | 29 | 1 | 3 | 5 | 9 | 12 | 5 | 0 | 66.6% | 18.0% | 36.8% | 500 | 25.8 | 0.7 | 0.0 | 2.9 | 5.0 | 2.9 | 3.8 | 0.0 | 0.6 | 8.5 | 1.4 | Details |
| 9 | NewpBel...Site Code: NewpBelRM0.0Newport CreekCoal Creek (Cedar) SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/10/2025
Macroinvertebrates
City of Bellevue | 21 | 1 | 2 | 2 | 5 | 6 | 0 | 0 | 79.0% | 1.6% | 59.0% | 500 | 3.0 | 0.0 | 0.0 | 1.4 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.0 | Details |
| 10 | 08EAS_b...Site Code: 08EAS_bug3Cochran Springs CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...7/30/2025
Integrated Streams Program
King County - DNRP | 32 | 2 | 4 | 3 | 9 | 10 | 6 | 0 | 65.8% | 11.8% | 42.6% | 500 | 23.1 | 1.7 | 1.4 | 4.3 | 2.5 | 1.8 | 5.0 | 0.0 | 0.9 | 5.4 | 0.1 | Details |
| 11 | CochranKi...Site Code: CochranKirk1Cochran Springs CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...8/30/2024
B-IBI
City of Kirkland | 27 | 1 | 5 | 4 | 10 | 10 | 6 | 0 | 63.0% | 8.6% | 52.8% | 500 | 21.7 | 0.0 | 0.0 | 5.7 | 3.8 | 1.8 | 5.0 | 0.0 | 1.6 | 3.8 | 0.0 | Details |
| 12 | 08EAS_b...Site Code: 08EAS_bug1Fairweather CreekE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...8/25/2025
Integrated Streams Program
King County - DNRP | 17 | 1 | 0 | 0 | 1 | 2 | 3 | 0 | 83.8% | 5.0% | 43.8% | 500 | 3.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 0.0 | 2.0 | 0.0 | Details |
| 13 | YarrowMa...Site Code: YarrowMain_21Yarrow Creek SubbasinE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue | 34 | 4 | 4 | 3 | 11 | 13 | 5 | 1 | 50.2% | 15.0% | 19.0% | 500 | 39.9 | 2.4 | 4.3 | 4.3 | 2.5 | 3.5 | 3.8 | 1.4 | 5.1 | 7.0 | 5.6 | Details |
| 14 | YarrowWe...Site Code: YarrowWestTribBelRM0.2Yarrow Creek SubbasinE Lake Washington - Bellevue N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue | 26 | 1 | 1 | 3 | 5 | 7 | 4 | 0 | 54.3% | 21.2% | 54.3% | 468 | 19.0 | 0.0 | 0.0 | 0.0 | 2.5 | 0.0 | 2.5 | 0.0 | 4.0 | 10.0 | 0.0 | Details |
| 15 | Lkhrst405...Site Code: Lkhrst405RM0.3Lakehurst CreekE Lake Washington - Bellevue S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue | 25 | 1 | 2 | 2 | 5 | 6 | 4 | 0 | 79.6% | 1.4% | 67.0% | 500 | 5.4 | 0.0 | 0.0 | 1.4 | 1.2 | 0.0 | 2.5 | 0.0 | 0.0 | 0.2 | 0.0 | Details |
| 16 | 08WES11...Site Code: 08WES1178Lake Washington tributary (0056)E Lake Washington - Kenmore N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/24/2025
Ambient Monitoring
King County - DNRP | 27 | 1 | 2 | 2 | 5 | 8 | 4 | 0 | 65.4% | 1.6% | 44.2% | 500 | 7.0 | 0.0 | 0.0 | 1.4 | 1.2 | 0.6 | 2.5 | 0.0 | 1.0 | 0.3 | 0.0 | Details |
| 17 | 08EAS15...Site Code: 08EAS1536Denny CreekE Lake Washington - Kenmore S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...9/18/2025
Ambient Monitoring
King County - DNRP | 36 | 4 | 6 | 4 | 14 | 12 | 4 | 1 | 59.8% | 4.4% | 6.2% | 500 | 37.9 | 3.1 | 4.3 | 7.1 | 3.8 | 2.9 | 2.5 | 1.4 | 2.5 | 1.7 | 8.6 | Details |
| 18 | 08EAS_b...Site Code: 08EAS_bug2Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...9/4/2025
Integrated Streams Program
King County - DNRP | 26 | 1 | 2 | 4 | 7 | 13 | 5 | 0 | 74.0% | 1.4% | 54.0% | 500 | 12.7 | 0.0 | 0.0 | 1.4 | 3.8 | 3.5 | 3.8 | 0.0 | 0.0 | 0.2 | 0.0 | Details |
| 19 | 08EAS21...Site Code: 08EAS2191Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...8/15/2023
Ambient Monitoring
King County - DNRP | 33 | 1 | 2 | 1 | 4 | 9 | 5 | 0 | 53.0% | 0.8% | 39.2% | 500 | 13.6 | 2.1 | 0.0 | 1.4 | 0.0 | 1.2 | 3.8 | 0.0 | 4.3 | 0.0 | 0.9 | Details |
| 20 | ForbesKir...Site Code: ForbesKirk1Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, B-IBI ...8/27/2025
B-IBI
City of Kirkland | 16 | 1 | 1 | 1 | 3 | 7 | 4 | 0 | 49.0% | 3.8% | 32.7% | 104 | 11.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 | 0.0 | 5.4 | 1.4 | 2.4 | Details |
| 21 | ForbesKir...Site Code: ForbesKirk2Forbes Creek (0242)Forbes Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...9/3/2024
B-IBI
City of Kirkland | 7 | 0 | 1 | 0 | 1 | 3 | 2 | 0 | 69.4% | 0.0% | 36.1% | 36 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.6 | Details |
| 22 | 08EAS_b...Site Code: 08EAS_bug4Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...9/15/2025
Integrated Streams Program
King County - DNRP | 36 | 1 | 3 | 2 | 6 | 14 | 3 | 0 | 40.6% | 4.0% | 27.2% | 500 | 25.4 | 3.1 | 0.0 | 2.9 | 1.2 | 4.1 | 1.2 | 0.0 | 7.7 | 1.5 | 3.7 | Details |
| 23 | BillyKirk1, ...Site Code: BillyKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, B-IBI ...8/19/2025
B-IBI
City of Kirkland | 23 | 1 | 2 | 2 | 5 | 6 | 4 | 0 | 68.1% | 1.1% | 44.9% | 370 | 5.5 | 0.0 | 0.0 | 1.4 | 1.2 | 0.0 | 2.5 | 0.0 | 0.2 | 0.1 | 0.0 | Details |
| 24 | E1186, Ju...Site Code: E1186Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland | 29 | 2 | 2 | 4 | 8 | 13 | 3 | 0 | 66.4% | 2.6% | 40.6% | 500 | 14.1 | 0.7 | 1.4 | 1.4 | 3.8 | 3.5 | 1.2 | 0.0 | 0.7 | 0.8 | 0.6 | Details |
| 25 | HazenHill...Site Code: HazenHillsJuanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, B-IBI ...8/21/2025
B-IBI
City of Kirkland | 21 | 1 | 2 | 1 | 4 | 4 | 2 | 0 | 72.8% | 2.0% | 70.6% | 500 | 1.9 | 0.0 | 0.0 | 1.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 0.0 | Details |
| 26 | JuanitaKir...Site Code: JuanitaKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...8/22/2024
B-IBI
City of Kirkland | 13 | 1 | 1 | 2 | 4 | 7 | 3 | 0 | 57.1% | 0.0% | 10.7% | 56 | 13.2 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 1.2 | 0.0 | 3.2 | 0.0 | 7.5 | Details |
| 27 | JuanitaKir...Site Code: JuanitaKirk3Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, B-IBI ...8/19/2025
B-IBI
City of Kirkland | 33 | 1 | 2 | 4 | 7 | 15 | 6 | 0 | 46.8% | 4.0% | 30.4% | 500 | 27.4 | 2.1 | 0.0 | 1.4 | 3.8 | 4.7 | 5.0 | 0.0 | 6.0 | 1.5 | 2.9 | Details |
| 28 | JuanitaKir...Site Code: JuanitaKirk4Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...8/22/2024
B-IBI
City of Kirkland | 23 | 0 | 1 | 3 | 4 | 12 | 2 | 0 | 59.3% | 6.6% | 4.4% | 182 | 19.8 | 0.0 | 0.0 | 0.0 | 2.5 | 2.9 | 0.0 | 0.0 | 2.6 | 2.8 | 9.0 | Details |
| 29 | Kingsgate...Site Code: KingsgateKirk1Juanita CreekJuanita Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, B-IBI ...8/15/2024
B-IBI
City of Kirkland | 30 | 2 | 2 | 1 | 5 | 11 | 4 | 0 | 52.6% | 3.0% | 54.8% | 500 | 14.2 | 1.0 | 1.4 | 1.4 | 0.0 | 2.4 | 2.5 | 0.0 | 4.4 | 1.0 | 0.0 | Details |
| 30 | 08EAS25...Site Code: 08EAS2546East CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...9/23/2025
Ambient Monitoring
King County - DNRP | 13 | 1 | 1 | 0 | 2 | 2 | 1 | 0 | 93.8% | 0.4% | 80.6% | 500 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 31 | Goff132nd...Site Code: Goff132nd_21Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue | 12 | 1 | 0 | 0 | 1 | 3 | 1 | 0 | 96.6% | 0.2% | 6.2% | 500 | 8.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 8.6 | Details |
| 32 | GoffBelR...Site Code: GoffBelRM1.4Goff CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/21/2025
Macroinvertebrates
City of Bellevue | 31 | 2 | 1 | 4 | 7 | 11 | 6 | 0 | 68.4% | 4.2% | 61.8% | 500 | 15.7 | 1.4 | 1.4 | 0.0 | 3.8 | 2.4 | 5.0 | 0.0 | 0.2 | 1.6 | 0.0 | Details |
| 33 | 08EAS22...Site Code: 08EAS2272Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/25/2025
Ambient Monitoring
King County - DNRP | 19 | 1 | 1 | 1 | 3 | 7 | 5 | 0 | 86.2% | 0.0% | 8.0% | 500 | 11.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 0.0 | 0.0 | 8.1 | Details |
| 34 | KelBelRM...Site Code: KelBelRM0.2Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue | 31 | 2 | 0 | 2 | 4 | 9 | 3 | 0 | 73.4% | 1.2% | 24.6% | 500 | 10.9 | 1.4 | 1.4 | 0.0 | 1.2 | 1.2 | 1.2 | 0.0 | 0.0 | 0.1 | 4.3 | Details |
| 35 | KelBelRM...Site Code: KelBelRM2.3Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Macr...8/15/2022
Macroinvertebrates
City of Bellevue | 32 | 1 | 2 | 5 | 8 | 13 | 3 | 0 | 57.4% | 1.0% | 8.0% | 500 | 24.2 | 1.7 | 0.0 | 1.4 | 5.0 | 3.5 | 1.2 | 0.0 | 3.1 | 0.0 | 8.1 | Details |
| 36 | KelBelRM...Site Code: KelBelRM2.4Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue | 28 | 1 | 2 | 2 | 5 | 9 | 5 | 0 | 76.6% | 3.0% | 6.0% | 500 | 17.6 | 0.3 | 0.0 | 1.4 | 1.2 | 1.2 | 3.8 | 0.0 | 0.0 | 1.0 | 8.6 | Details |
| 37 | KelBelRM...Site Code: KelBelRM3.9Kelsey CreekKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue | 19 | 1 | 0 | 1 | 2 | 4 | 0 | 0 | 84.8% | 1.6% | 77.6% | 500 | 0.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 0.0 | Details |
| 38 | WestTribF...Site Code: WestTribFarmRM0.4Kelsey Creek, West TributaryKelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...9/10/2025
Macroinvertebrates
City of Bellevue | 26 | 1 | 2 | 2 | 5 | 8 | 6 | 0 | 78.0% | 0.6% | 11.4% | 500 | 15.6 | 0.0 | 0.0 | 1.4 | 1.2 | 0.6 | 5.0 | 0.0 | 0.0 | 0.0 | 7.3 | Details |
| 39 | ValleyAPT...Site Code: ValleyAPTS_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/9/2025
Macroinvertebrates
City of Bellevue | 25 | 1 | 1 | 2 | 4 | 8 | 6 | 0 | 47.8% | 3.6% | 26.4% | 500 | 17.7 | 0.0 | 0.0 | 0.0 | 1.2 | 0.6 | 5.0 | 0.0 | 5.7 | 1.3 | 3.9 | Details |
| 40 | ValleyBG...Site Code: ValleyBGC_21Valley Creek (Bellevue)Kelsey Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/14/2025
Macroinvertebrates
City of Bellevue | 34 | 1 | 1 | 2 | 4 | 8 | 4 | 0 | 43.8% | 0.6% | 6.2% | 500 | 22.1 | 2.4 | 0.0 | 0.0 | 1.2 | 0.6 | 2.5 | 0.0 | 6.8 | 0.0 | 8.6 | Details |
| 41 | 08CED28...Site Code: 08CED2898Cedar River - Lower tributary (0311)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP | 53 | 4 | 5 | 3 | 12 | 9 | 6 | 1 | 41.6% | 19.0% | 17.8% | 500 | 51.3 | 9.0 | 4.3 | 5.7 | 2.5 | 1.2 | 5.0 | 1.4 | 7.4 | 9.0 | 5.9 | Details |
| 42 | 08CED49...Site Code: 08CED4975Hotel Creek (0342)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Ambi...7/21/2022
Ambient Monitoring
King County - DNRP | 41 | 8 | 6 | 5 | 19 | 19 | 7 | 6 | 30.9% | 11.0% | 7.0% | 473 | 72.2 | 4.8 | 10.0 | 7.1 | 5.0 | 7.1 | 6.2 | 8.6 | 10.0 | 5.0 | 8.4 | Details |
| 43 | 08CED27...Site Code: 08CED2711Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP | 34 | 2 | 5 | 4 | 11 | 13 | 5 | 0 | 43.0% | 9.4% | 6.2% | 500 | 40.4 | 2.4 | 1.4 | 5.7 | 3.8 | 3.5 | 3.8 | 0.0 | 7.0 | 4.2 | 8.6 | Details |
| 44 | 08CED_b...Site Code: 08CED_bug3Maplewood CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...9/16/2025
Integrated Streams Program
King County - DNRP | 35 | 4 | 6 | 5 | 15 | 12 | 7 | 2 | 57.0% | 13.8% | 13.6% | 500 | 47.7 | 2.8 | 4.3 | 7.1 | 5.0 | 2.9 | 6.2 | 2.9 | 3.2 | 6.4 | 6.8 | Details |
| 45 | 08CED24...Site Code: 08CED2433Maplewood CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...10/2/2025
Ambient Monitoring
King County - DNRP | 41 | 6 | 5 | 5 | 16 | 15 | 8 | 2 | 63.0% | 4.8% | 2.8% | 500 | 50.6 | 4.8 | 7.1 | 5.7 | 5.0 | 4.7 | 7.5 | 2.9 | 1.6 | 1.9 | 9.3 | Details |
| 46 | 08CED25...Site Code: 08CED2518Molasses CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/28/2025
Ambient Monitoring
King County - DNRP | 39 | 2 | 5 | 3 | 10 | 13 | 7 | 0 | 42.2% | 18.8% | 2.0% | 500 | 49.2 | 4.1 | 1.4 | 5.7 | 2.5 | 3.5 | 6.2 | 0.0 | 7.2 | 8.9 | 9.5 | Details |
| 47 | 08CED41...Site Code: 08CED4192Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/23/2025
Ambient Monitoring
King County - DNRP | 64 | 8 | 11 | 8 | 27 | 29 | 9 | 7 | 47.8% | 6.6% | 0.6% | 500 | 85.9 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 8.8 | 10.0 | 5.7 | 2.8 | 9.9 | Details |
| 48 | 31I, Taylor ...Site Code: 31ITaylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Regul...10/5/2022
Regulatory Effectiveness
King County - DNRP | 41 | 8 | 8 | 9 | 25 | 24 | 8 | 6 | 37.4% | 13.4% | 12.6% | 500 | 89.3 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 7.5 | 8.6 | 10.0 | 6.2 | 7.1 | Details |
| 49 | 08CED_b...Site Code: 08CED_bug1Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Ambi...8/14/2024
Ambient Monitoring
King County - DNRP | 53 | 6 | 10 | 8 | 24 | 25 | 12 | 11 | 60.6% | 10.4% | 0.6% | 500 | 81.7 | 9.0 | 7.1 | 10.0 | 8.8 | 10.0 | 10.0 | 10.0 | 2.3 | 4.7 | 9.9 | Details |
| 50 | 08CED50...Site Code: 08CED5046Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/7/2025
Ambient Monitoring
King County - DNRP | 62 | 9 | 11 | 11 | 31 | 30 | 14 | 14 | 41.0% | 16.8% | 0.8% | 500 | 95.3 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 7.6 | 7.9 | 9.8 | Details |
| 51 | 31Q, Web...Site Code: 31QWebster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Regul...10/5/2022
Regulatory Effectiveness
King County - DNRP | 41 | 8 | 9 | 10 | 27 | 27 | 9 | 8 | 53.4% | 10.6% | 0.6% | 500 | 90.9 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 7.5 | 4.8 | 9.9 | Details |
| 52 | 08WES_b...Site Code: 08WES_bug1Lyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...8/25/2025
Integrated Streams Program
King County - DNRP | 42 | 2 | 4 | 5 | 11 | 16 | 10 | 0 | 46.2% | 7.6% | 40.0% | 500 | 41.3 | 5.2 | 1.4 | 4.3 | 5.0 | 5.3 | 10.0 | 0.0 | 6.2 | 3.3 | 0.7 | Details |
| 53 | 08WES09...Site Code: 08WES0905Lyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/6/2025
Ambient Monitoring
King County - DNRP | 31 | 3 | 5 | 4 | 12 | 12 | 5 | 0 | 40.6% | 16.6% | 16.2% | 500 | 42.1 | 1.4 | 2.9 | 5.7 | 3.8 | 2.9 | 3.8 | 0.0 | 7.7 | 7.8 | 6.2 | Details |
| 54 | LoBalling...Site Code: LoBallingerLyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...10/4/2025
Benthic Invertebrates
City of Lake Forest Park | 28 | 3 | 4 | 5 | 12 | 9 | 5 | 0 | 64.3% | 4.5% | 42.2% | 443 | 30.6 | 5.7 | 2.9 | 4.3 | 5.0 | 2.4 | 3.8 | 0.0 | 4.7 | 1.8 | 0.2 | Details |
| 55 | LyonLFPS...Site Code: LyonLFPS35thLyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...9/26/2025
Benthic Invertebrates
City of Lake Forest Park | 26 | 3 | 5 | 7 | 15 | 13 | 5 | 0 | 49.5% | 4.0% | 20.4% | 481 | 44.6 | 4.8 | 2.9 | 5.7 | 7.5 | 4.7 | 3.8 | 0.0 | 8.6 | 1.5 | 5.3 | Details |
| 56 | LyonLFPS...Site Code: LyonLFPSFieneLyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...9/26/2025
Benthic Invertebrates
City of Lake Forest Park | 25 | 4 | 4 | 4 | 12 | 14 | 5 | 0 | 50.4% | 4.4% | 10.6% | 500 | 43.2 | 4.3 | 4.3 | 4.3 | 3.8 | 5.3 | 3.8 | 0.0 | 8.3 | 1.7 | 7.5 | Details |
| 57 | McKinnon...Site Code: McKinnonLyon CreekLyon Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...10/4/2025
Benthic Invertebrates
City of Lake Forest Park | 27 | 4 | 4 | 2 | 10 | 9 | 7 | 1 | 66.6% | 5.6% | 33.2% | 500 | 33.7 | 5.2 | 4.3 | 4.3 | 1.2 | 2.4 | 6.2 | 1.4 | 4.1 | 2.3 | 2.3 | Details |
| 58 | 08EAS19...Site Code: 08EAS1964May Creek (Lake Washington)May Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP | 46 | 4 | 5 | 2 | 11 | 18 | 7 | 1 | 47.8% | 12.4% | 11.8% | 500 | 50.6 | 6.6 | 4.3 | 5.7 | 1.2 | 6.5 | 6.2 | 1.4 | 5.7 | 5.7 | 7.3 | Details |
| 59 | 08EAS20...Site Code: 08EAS2058May Creek (Lake Washington)May Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP | 44 | 6 | 8 | 4 | 18 | 21 | 8 | 3 | 41.6% | 16.0% | 1.6% | 500 | 71.3 | 5.9 | 7.1 | 10.0 | 3.8 | 8.2 | 7.5 | 4.3 | 7.4 | 7.5 | 9.6 | Details |
| 60 | 08EAS26...Site Code: 08EAS2631May Creek (Lake Washington)May Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/12/2025
Ambient Monitoring
King County - DNRP | 54 | 4 | 7 | 7 | 18 | 22 | 12 | 3 | 31.6% | 16.2% | 4.2% | 500 | 79.4 | 9.3 | 4.3 | 8.6 | 7.5 | 8.8 | 10.0 | 4.3 | 10.0 | 7.6 | 9.0 | Details |
| 61 | 08WES09...Site Code: 08WES0903McAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/26/2025
Ambient Monitoring
King County - DNRP | 32 | 4 | 3 | 4 | 11 | 15 | 5 | 1 | 48.6% | 2.2% | 35.4% | 500 | 30.4 | 1.7 | 4.3 | 2.9 | 3.8 | 4.7 | 3.8 | 1.4 | 5.5 | 0.6 | 1.8 | Details |
| 62 | 2900Perki...Site Code: 2900PerkinsWayMcAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Benth...10/9/2022
Benthic Invertebrates
City of Lake Forest Park | 28 | 5 | 4 | 6 | 15 | 17 | 7 | 1 | 57.4% | 8.4% | 10.2% | 500 | 54.5 | 5.7 | 5.7 | 4.3 | 6.2 | 7.1 | 6.2 | 1.4 | 6.5 | 3.7 | 7.6 | Details |
| 63 | BigTree, ...Site Code: BigTreeMcAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...10/4/2025
Benthic Invertebrates
City of Lake Forest Park | 28 | 5 | 4 | 4 | 13 | 15 | 7 | 2 | 53.8% | 6.8% | 12.6% | 500 | 51.8 | 5.7 | 5.7 | 4.3 | 3.8 | 5.9 | 6.2 | 2.9 | 7.4 | 2.9 | 7.1 | Details |
| 64 | McAlLFP...Site Code: McAlLFPS196thMcAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...9/26/2025
Benthic Invertebrates
City of Lake Forest Park | 25 | 5 | 5 | 5 | 15 | 14 | 3 | 1 | 62.3% | 3.4% | 51.1% | 499 | 35.1 | 4.3 | 5.7 | 5.7 | 5.0 | 5.3 | 1.2 | 1.4 | 5.2 | 1.2 | 0.0 | Details |
| 65 | McAlLFP...Site Code: McAlLFPSAnmlAcresMcAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...9/26/2025
Benthic Invertebrates
City of Lake Forest Park | 25 | 6 | 5 | 4 | 15 | 15 | 4 | 2 | 72.0% | 2.6% | 9.6% | 500 | 43.3 | 4.3 | 7.1 | 5.7 | 3.8 | 5.9 | 2.5 | 2.9 | 2.6 | 0.8 | 7.8 | Details |
| 66 | WhispSpri...Site Code: WhispSpringMcAleer CreekMcAleer Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Benth...10/4/2025
Benthic Invertebrates
City of Lake Forest Park | 26 | 4 | 4 | 4 | 12 | 12 | 7 | 2 | 80.2% | 2.8% | 47.8% | 500 | 31.7 | 4.8 | 4.3 | 4.3 | 3.8 | 4.1 | 6.2 | 2.9 | 0.5 | 0.9 | 0.0 | Details |
| 67 | SunsetCC...Site Code: SunsetCC_21Sunset CreekMercer Slough SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Macr...7/8/2025
Macroinvertebrates
City of Bellevue | 30 | 0 | 0 | 1 | 1 | 3 | 3 | 0 | 65.6% | 3.8% | 4.2% | 500 | 13.6 | 1.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 0.9 | 1.4 | 9.0 | Details |
| 68 | SunsetRa...Site Code: SunsetRavine_21Sunset CreekMercer Slough SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Macr...7/22/2024
Macroinvertebrates
City of Bellevue | 24 | 1 | 3 | 0 | 4 | 5 | 4 | 1 | 74.9% | 0.6% | 46.6% | 498 | 6.8 | 0.0 | 0.0 | 2.9 | 0.0 | 0.0 | 2.5 | 1.4 | 0.0 | 0.0 | 0.0 | Details |
| 69 | 08WES06...Site Code: 08WES0629Maple Leaf CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/28/2025
Ambient Monitoring
King County - DNRP | 18 | 2 | 1 | 1 | 4 | 5 | 3 | 1 | 75.4% | 1.0% | 66.8% | 500 | 4.1 | 0.0 | 1.4 | 0.0 | 0.0 | 0.0 | 1.2 | 1.4 | 0.0 | 0.0 | 0.0 | Details |
| 70 | 95T, Thor...Site Code: 95TThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Proje...8/30/2023
Project Evaluation
City of Seattle | 13 | 2 | 0 | 1 | 3 | 6 | 3 | 0 | 96.6% | 0.0% | 1.6% | 500 | 12.3 | 0.0 | 1.4 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 9.6 | Details |
| 71 | KNKC, Th...Site Code: KNKCThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...8/1/2024
Project Evaluation
City of Seattle | 25 | 1 | 2 | 3 | 6 | 8 | 4 | 0 | 76.6% | 1.2% | 64.6% | 500 | 7.1 | 0.0 | 0.0 | 1.4 | 2.5 | 0.6 | 2.5 | 0.0 | 0.0 | 0.1 | 0.0 | Details |
| 72 | KNKT_D, ...Site Code: KNKT_DThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...8/1/2024
Project Evaluation
City of Seattle | 26 | 1 | 2 | 3 | 6 | 6 | 4 | 0 | 78.8% | 1.6% | 72.0% | 500 | 6.7 | 0.0 | 0.0 | 1.4 | 2.5 | 0.0 | 2.5 | 0.0 | 0.0 | 0.3 | 0.0 | Details |
| 73 | KNKT_U, ...Site Code: KNKT_UThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...8/1/2024
Project Evaluation
City of Seattle | 21 | 1 | 2 | 3 | 6 | 5 | 3 | 0 | 74.4% | 1.0% | 65.4% | 500 | 5.2 | 0.0 | 0.0 | 1.4 | 2.5 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 74 | KNKT-U, ...Site Code: KNKT-UThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2022, Statu...8/30/2022
Status & Trends
City of Seattle | 22 | 1 | 1 | 3 | 5 | 7 | 4 | 0 | 69.4% | 1.2% | 48.2% | 500 | 5.1 | 0.0 | 0.0 | 0.0 | 2.5 | 0.0 | 2.5 | 0.0 | 0.0 | 0.1 | 0.0 | Details |
| 75 | LCPFP_1, ...Site Code: LCPFP_1Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Proje...10/3/2023
Project Evaluation
City of Seattle | 19 | 1 | 1 | 2 | 4 | 6 | 4 | 0 | 70.2% | 1.2% | 49.4% | 500 | 3.9 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 2.5 | 0.0 | 0.0 | 0.1 | 0.0 | Details |
| 76 | LCPFP_2, ...Site Code: LCPFP_2Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...9/3/2024
Project Evaluation
City of Seattle | 28 | 1 | 2 | 6 | 9 | 11 | 5 | 0 | 77.6% | 2.0% | 71.6% | 500 | 14.6 | 0.3 | 0.0 | 1.4 | 6.2 | 2.4 | 3.8 | 0.0 | 0.0 | 0.5 | 0.0 | Details |
| 77 | NFCC, Th...Site Code: NFCCThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...9/3/2024
Project Evaluation
City of Seattle | 27 | 1 | 1 | 3 | 5 | 9 | 5 | 0 | 49.2% | 3.2% | 44.8% | 500 | 13.9 | 0.0 | 0.0 | 0.0 | 2.5 | 1.2 | 3.8 | 0.0 | 5.4 | 1.1 | 0.0 | Details |
| 78 | NFCT, Th...Site Code: NFCTThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Proje...8/28/2023
Project Evaluation
City of Seattle | 35 | 1 | 2 | 5 | 8 | 13 | 9 | 0 | 49.4% | 10.0% | 48.8% | 500 | 31.3 | 2.8 | 0.0 | 1.4 | 5.0 | 3.5 | 8.8 | 0.0 | 5.3 | 4.5 | 0.0 | Details |
| 79 | SFCC, Th...Site Code: SFCCThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...8/1/2024
Project Evaluation
City of Seattle | 28 | 1 | 2 | 5 | 8 | 10 | 4 | 0 | 75.8% | 0.8% | 62.6% | 500 | 11.0 | 0.3 | 0.0 | 1.4 | 5.0 | 1.8 | 2.5 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 80 | SFCT, Th...Site Code: SFCTThornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...8/1/2024
Project Evaluation
City of Seattle | 25 | 1 | 1 | 3 | 5 | 9 | 4 | 0 | 69.6% | 6.0% | 31.8% | 500 | 11.3 | 0.0 | 0.0 | 0.0 | 2.5 | 1.2 | 2.5 | 0.0 | 0.0 | 2.5 | 2.6 | Details |
| 81 | TCA001, ...Site Code: TCA001Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Sno-...9/16/2024
Sno-King Watershed Council benthic macroinvertebrate analysis of urban & suburban streams in King and Snohomish Counties
Sno-King Watershed Council | 20 | 1 | 1 | 2 | 4 | 8 | 5 | 0 | 66.0% | 1.2% | 29.0% | 500 | 9.8 | 0.0 | 0.0 | 0.0 | 1.2 | 0.6 | 3.8 | 0.0 | 0.8 | 0.1 | 3.3 | Details |
| 82 | TMMA119...Site Code: TMMA1199Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Statu...8/16/2023
Status & Trends
City of Seattle | 28 | 1 | 2 | 4 | 7 | 10 | 6 | 0 | 70.2% | 3.2% | 42.2% | 500 | 13.6 | 0.3 | 0.0 | 1.4 | 3.8 | 1.8 | 5.0 | 0.0 | 0.0 | 1.1 | 0.2 | Details |
| 83 | TMMA316...Site Code: TMMA3168Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Statu...8/5/2025
Status & Trends
City of Seattle | 15 | 0 | 0 | 1 | 1 | 3 | 3 | 0 | 95.0% | 0.6% | 1.4% | 500 | 10.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.2 | 0.0 | 0.0 | 0.0 | 9.7 | Details |
| 84 | TMMA875...Site Code: TMMA8751Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Statu...10/3/2023
Status & Trends
City of Seattle | 33 | 1 | 0 | 3 | 4 | 11 | 8 | 0 | 63.6% | 1.8% | 62.8% | 500 | 16.3 | 2.1 | 0.0 | 0.0 | 2.5 | 2.4 | 7.5 | 0.0 | 1.5 | 0.4 | 0.0 | Details |
| 85 | TNMA060...Site Code: TNMA0609Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Statu...8/16/2023
Status & Trends
City of Seattle | 22 | 1 | 1 | 4 | 6 | 9 | 3 | 0 | 74.0% | 0.4% | 59.2% | 500 | 6.2 | 0.0 | 0.0 | 0.0 | 3.8 | 1.2 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 86 | TNMA767...Site Code: TNMA7673Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Statu...8/21/2023
Status & Trends
City of Seattle | 18 | 1 | 2 | 2 | 5 | 4 | 3 | 0 | 73.4% | 6.0% | 78.8% | 500 | 6.4 | 0.0 | 0.0 | 1.4 | 1.2 | 0.0 | 1.2 | 0.0 | 0.0 | 2.5 | 0.0 | Details |
| 87 | TSMA777...Site Code: TSMA7774Thornton CreekThornton Creek SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Statu...8/21/2023
Status & Trends
City of Seattle | 25 | 1 | 2 | 4 | 7 | 10 | 4 | 0 | 48.4% | 0.6% | 21.4% | 500 | 20.0 | 0.0 | 0.0 | 1.4 | 3.8 | 1.8 | 2.5 | 0.0 | 5.6 | 0.0 | 5.0 | Details |
| 88 | 08CED50...Site Code: 08CED5032Rock Creek (Upper Cedar)Upper Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/7/2025
Ambient Monitoring
King County - DNRP | 73 | 11 | 11 | 11 | 33 | 32 | 14 | 11 | 27.2% | 18.2% | 0.6% | 500 | 98.5 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 8.6 | 9.9 | Details |
| 89 | 08WES06...Site Code: 08WES0622Ravenna CreekW Lake Washington - Seattle N SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/5/2025
Ambient Monitoring
King County - DNRP | 26 | 2 | 2 | 2 | 6 | 7 | 2 | 0 | 78.0% | 2.2% | 24.6% | 500 | 9.0 | 0.0 | 1.4 | 1.4 | 1.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 4.3 | Details |
| 90 | 08WES15...Site Code: 08WES1579Lake Washington tributaryW Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP | 17 | 1 | 1 | 0 | 2 | 5 | 2 | 0 | 64.0% | 0.0% | 25.8% | 500 | 5.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.4 | 0.0 | 4.0 | Details |
| 91 | 08WES14...Site Code: 08WES1490Lake Washington tributary (0464B)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...9/11/2025
Ambient Monitoring
King County - DNRP | 17 | 1 | 1 | 0 | 2 | 3 | 2 | 0 | 68.4% | 0.0% | 32.8% | 500 | 2.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 0.0 | 2.4 | Details |
| 92 | 08WES10...Site Code: 08WES1037Mapes CreekW Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/12/2025
Ambient Monitoring
King County - DNRP | 42 | 4 | 3 | 4 | 11 | 15 | 8 | 1 | 57.4% | 4.4% | 38.8% | 500 | 35.5 | 5.2 | 4.3 | 2.9 | 3.8 | 4.7 | 7.5 | 1.4 | 3.1 | 1.7 | 1.0 | Details |
| 93 | MA01, Ma...Site Code: MA01Mapes CreekW Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Proje...8/9/2023
Project Evaluation
City of Seattle | 29 | 1 | 0 | 1 | 2 | 7 | 5 | 0 | 50.4% | 1.2% | 13.8% | 500 | 16.4 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 3.8 | 0.0 | 5.0 | 0.1 | 6.8 | Details |
| 94 | MAMA625...Site Code: MAMA6255Mapes CreekW Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Statu...7/31/2024
Status & Trends
City of Seattle | 31 | 2 | 2 | 5 | 9 | 14 | 7 | 0 | 45.4% | 4.2% | 37.6% | 500 | 28.8 | 1.4 | 1.4 | 1.4 | 5.0 | 4.1 | 6.2 | 0.0 | 6.4 | 1.6 | 1.3 | Details |
| 95 | 08WES13...Site Code: 08WES1340Taylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...7/28/2025
Integrated Streams Program
King County - DNRP | 29 | 2 | 4 | 3 | 9 | 6 | 4 | 0 | 55.2% | 8.2% | 20.2% | 500 | 24.0 | 0.7 | 1.4 | 4.3 | 2.5 | 0.0 | 2.5 | 0.0 | 3.7 | 3.6 | 5.3 | Details |
| 96 | TA03, Tayl...Site Code: TA03Taylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Statu...7/31/2024
Status & Trends
City of Seattle | 29 | 2 | 4 | 3 | 9 | 7 | 5 | 0 | 60.8% | 7.1% | 16.0% | 495 | 24.2 | 0.7 | 1.4 | 4.3 | 2.5 | 0.0 | 3.8 | 0.0 | 2.2 | 3.1 | 6.3 | Details |
| 97 | TAEF625...Site Code: TAEF6250Taylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Statu...7/31/2024
Status & Trends
City of Seattle | 24 | 3 | 4 | 3 | 10 | 7 | 3 | 0 | 58.8% | 5.4% | 20.8% | 500 | 21.0 | 0.0 | 2.9 | 4.3 | 2.5 | 0.0 | 1.2 | 0.0 | 2.8 | 2.2 | 5.2 | Details |
| 98 | TAMA_C...Site Code: TAMA_CONFTaylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...7/31/2024
Project Evaluation
City of Seattle | 24 | 3 | 3 | 3 | 9 | 9 | 5 | 0 | 57.0% | 8.4% | 26.4% | 500 | 23.9 | 0.0 | 2.9 | 2.9 | 2.5 | 1.2 | 3.8 | 0.0 | 3.2 | 3.7 | 3.9 | Details |
| 99 | TAMA_M...Site Code: TAMA_MOUTHTaylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Proje...7/31/2024
Project Evaluation
City of Seattle | 35 | 2 | 3 | 4 | 9 | 12 | 7 | 0 | 39.5% | 1.8% | 11.1% | 496 | 35.8 | 2.8 | 1.4 | 2.9 | 3.8 | 2.9 | 6.2 | 0.0 | 8.0 | 0.4 | 7.4 | Details |
| 100 | TAMA746...Site Code: TAMA7468Taylor Creek (W Lake Washington)W Lake Washington - Seattle S SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2024, Statu...7/31/2024
Status & Trends
City of Seattle | 25 | 2 | 5 | 3 | 10 | 6 | 5 | 0 | 79.2% | 6.2% | 6.0% | 500 | 24.6 | 0.0 | 1.4 | 5.7 | 2.5 | 0.0 | 3.8 | 0.0 | 0.0 | 2.6 | 8.6 | Details |