| 1 | 09BLA07... Site Code: 09BLA0722Garrison Creek - S ForkBlack River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/11/2026
Ambient Monitoring
King County - DNRP | 37 | 2 | 4 | 4 | 10 | 10 | 1 | 0 | 55.8% | 2.4% | 14.6% | 500 | 25.5 | 3.4 | 1.4 | 4.3 | 3.8 | 1.8 | 0.0 | 0.0 | 3.6 | 0.7 | 6.6 | Details |
| 2 | 09BLA06...Site Code: 09BLA0675Mill Creek (Kent)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP | 28 | 2 | 4 | 2 | 8 | 10 | 6 | 0 | 68.5% | 2.0% | 8.6% | 499 | 22.7 | 0.3 | 1.4 | 4.3 | 1.2 | 1.8 | 5.0 | 0.0 | 0.1 | 0.5 | 8.0 | Details |
| 3 | 09BLA07...Site Code: 09BLA0716Mill Creek (Kent)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/12/2026
Ambient Monitoring
King County - DNRP | 40 | 3 | 3 | 4 | 10 | 11 | 5 | 0 | 53.6% | 1.4% | 16.2% | 500 | 30.6 | 4.5 | 2.9 | 2.9 | 3.8 | 2.4 | 3.8 | 0.0 | 4.2 | 0.2 | 6.2 | Details |
| 4 | 09BLA07...Site Code: 09BLA0756Mill Creek (Kent)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/11/2026
Ambient Monitoring
King County - DNRP | 32 | 3 | 4 | 3 | 10 | 7 | 2 | 0 | 66.0% | 2.6% | 14.2% | 500 | 19.7 | 1.7 | 2.9 | 4.3 | 2.5 | 0.0 | 0.0 | 0.0 | 0.8 | 0.8 | 6.7 | Details |
| 5 | 09BLA07...Site Code: 09BLA0771Panther Creek (Black River)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/11/2026
Ambient Monitoring
King County - DNRP | 34 | 3 | 3 | 4 | 10 | 8 | 6 | 0 | 54.4% | 8.6% | 30.6% | 500 | 28.1 | 2.4 | 2.9 | 2.9 | 3.8 | 0.6 | 5.0 | 0.0 | 3.9 | 3.8 | 2.9 | Details |
| 6 | 09BLA07...Site Code: 09BLA0772Panther Creek (Black River)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/11/2026
Ambient Monitoring
King County - DNRP | 22 | 2 | 2 | 3 | 7 | 8 | 1 | 0 | 78.2% | 0.4% | 65.8% | 500 | 5.9 | 0.0 | 1.4 | 1.4 | 2.5 | 0.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 7 | 09BLA07...Site Code: 09BLA0768Springbrook Creek (Black River)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/11/2026
Ambient Monitoring
King County - DNRP | 40 | 4 | 4 | 4 | 12 | 11 | 6 | 1 | 47.4% | 12.4% | 13.3% | 498 | 44.0 | 4.5 | 4.3 | 4.3 | 3.8 | 2.4 | 5.0 | 1.4 | 5.8 | 5.7 | 6.9 | Details |
| 8 | 09BLA08...Site Code: 09BLA0817Springbrook Creek tributary (0006B)Black River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP | 14 | 1 | 1 | 0 | 2 | 3 | 1 | 0 | 82.2% | 0.6% | 59.8% | 500 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 9 | 09DEE22...Site Code: 09DEE2208Coal Creek (Green River)Coal Creek (Green) SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/4/2025
Ambient Monitoring
King County - DNRP | 57 | 8 | 9 | 9 | 26 | 27 | 9 | 9 | 22.4% | 14.0% | 2.2% | 500 | 94.7 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 10.0 | 6.5 | 9.5 | Details |
| 10 | 09DEE22...Site Code: 09DEE2294Coal Creek (Green River)Coal Creek (Green) SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/4/2025
Ambient Monitoring
King County - DNRP | 59 | 10 | 9 | 8 | 27 | 25 | 8 | 9 | 35.2% | 12.0% | 0.4% | 500 | 90.8 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 7.5 | 10.0 | 9.1 | 5.5 | 9.9 | Details |
| 11 | 09COV_b...Site Code: 09COV_bug1Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Integr...7/8/2026
Integrated Streams Program
King County - DNRP | 67 | 12 | 8 | 9 | 29 | 33 | 10 | 7 | 32.4% | 16.8% | 10.2% | 500 | 95.4 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 9.9 | 7.9 | 7.6 | Details |
| 12 | 09COV11...Site Code: 09COV1165Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/18/2025
Ambient Monitoring
King County - DNRP | 51 | 7 | 8 | 6 | 21 | 25 | 11 | 8 | 51.8% | 10.8% | 1.0% | 500 | 82.4 | 8.3 | 8.6 | 10.0 | 6.2 | 10.0 | 10.0 | 10.0 | 4.6 | 4.9 | 9.8 | Details |
| 13 | 09COV14...Site Code: 09COV1418Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/18/2025
Ambient Monitoring
King County - DNRP | 60 | 7 | 7 | 10 | 24 | 28 | 8 | 6 | 24.4% | 11.8% | 2.2% | 500 | 88.1 | 10.0 | 8.6 | 8.6 | 10.0 | 10.0 | 7.5 | 8.6 | 10.0 | 5.4 | 9.5 | Details |
| 14 | 09COV17...Site Code: 09COV1756Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...10/2/2025
Ambient Monitoring
King County - DNRP | 43 | 3 | 7 | 8 | 18 | 20 | 11 | 4 | 62.2% | 9.0% | 1.0% | 500 | 64.7 | 5.5 | 2.9 | 8.6 | 8.8 | 7.6 | 10.0 | 5.7 | 1.8 | 4.0 | 9.8 | Details |
| 15 | EFF755X...Site Code: EFF755XX-CO01.5Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/19/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 66 | 10 | 8 | 7 | 25 | 26 | 4 | 6 | 33.0% | 3.2% | 2.6% | 500 | 78.8 | 10.0 | 10.0 | 10.0 | 7.5 | 10.0 | 2.5 | 8.6 | 9.7 | 1.1 | 9.4 | Details |
| 16 | EFF755X...Site Code: EFF755XX-CO02.2Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/27/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 79 | 6 | 10 | 12 | 28 | 29 | 11 | 4 | 27.0% | 9.8% | 2.4% | 500 | 86.7 | 10.0 | 7.1 | 10.0 | 10.0 | 10.0 | 10.0 | 5.7 | 10.0 | 4.4 | 9.4 | Details |
| 17 | EFF755X...Site Code: EFF755XX-CO03.6Covington CreekCovington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/21/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 80 | 7 | 6 | 8 | 21 | 28 | 11 | 3 | 21.4% | 7.8% | 9.2% | 500 | 80.0 | 10.0 | 8.6 | 7.1 | 8.8 | 10.0 | 10.0 | 4.3 | 10.0 | 3.4 | 7.9 | Details |
| 18 | 09COV18...Site Code: 09COV1862Rock Creek tributary (Covington)Covington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/21/2026
Ambient Monitoring
King County - DNRP | 41 | 3 | 9 | 4 | 16 | 19 | 8 | 2 | 43.0% | 32.6% | 4.4% | 500 | 64.9 | 4.8 | 2.9 | 10.0 | 3.8 | 7.1 | 7.5 | 2.9 | 7.0 | 10.0 | 9.0 | Details |
| 19 | 09COV18...Site Code: 09COV1864Rock Creek tributary (Covington)Covington Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/21/2026
Ambient Monitoring
King County - DNRP | 41 | 3 | 7 | 6 | 16 | 17 | 7 | 1 | 51.6% | 24.6% | 14.6% | 500 | 57.4 | 4.8 | 2.9 | 8.6 | 6.2 | 5.9 | 6.2 | 1.4 | 4.7 | 10.0 | 6.6 | Details |
| 20 | 09DEE21...Site Code: 09DEE2163Deep Creek (Green River)Deep Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/28/2026
Ambient Monitoring
King County - DNRP | 55 | 7 | 5 | 7 | 19 | 25 | 6 | 3 | 31.8% | 8.8% | 4.0% | 500 | 73.7 | 9.7 | 8.6 | 5.7 | 7.5 | 10.0 | 5.0 | 4.3 | 10.0 | 3.9 | 9.1 | Details |
| 21 | 09DEE22...Site Code: 09DEE2211Deep Creek (Green River)Deep Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/28/2026
Ambient Monitoring
King County - DNRP | 70 | 6 | 10 | 8 | 24 | 30 | 11 | 5 | 19.6% | 14.4% | 3.4% | 500 | 88.9 | 10.0 | 7.1 | 10.0 | 8.8 | 10.0 | 10.0 | 7.1 | 10.0 | 6.7 | 9.2 | Details |
| 22 | 09DUW00...Site Code: 09DUW0091Duwamish River tributary (0001E)Duwamish River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/22/2026
Ambient Monitoring
King County - DNRP | 29 | 1 | 2 | 1 | 4 | 6 | 4 | 0 | 53.2% | 3.2% | 35.4% | 500 | 11.8 | 0.7 | 0.0 | 1.4 | 0.0 | 0.0 | 2.5 | 0.0 | 4.3 | 1.1 | 1.8 | Details |
| 23 | 09DUW02...Site Code: 09DUW0225Duwamish River tributary (0003)Duwamish River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...7/29/2025
Ambient Monitoring
King County - DNRP | 20 | 1 | 3 | 1 | 5 | 3 | 5 | 0 | 66.8% | 3.4% | 52.4% | 500 | 8.4 | 0.0 | 0.0 | 2.9 | 0.0 | 0.0 | 3.8 | 0.0 | 0.6 | 1.2 | 0.0 | Details |
| 24 | 09JEN_b...Site Code: 09JEN_bug1Jenkins CreekJenkins Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Integr...10/9/2025
Integrated Streams Program
King County - DNRP | 37 | 7 | 8 | 8 | 23 | 20 | 9 | 5 | 62.0% | 3.6% | 3.6% | 500 | 66.7 | 3.4 | 8.6 | 10.0 | 8.8 | 7.6 | 8.8 | 7.1 | 1.9 | 1.3 | 9.2 | Details |
| 25 | 09JEN13...Site Code: 09JEN1318Jenkins CreekJenkins Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 47 | 7 | 9 | 8 | 24 | 21 | 8 | 4 | 56.6% | 14.4% | 2.2% | 500 | 75.2 | 6.9 | 8.6 | 10.0 | 8.8 | 8.2 | 7.5 | 5.7 | 3.4 | 6.7 | 9.5 | Details |
| 26 | 09JEN13...Site Code: 09JEN1357Jenkins CreekJenkins Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 47 | 6 | 10 | 7 | 23 | 20 | 9 | 4 | 47.2% | 19.2% | 4.2% | 500 | 77.7 | 6.9 | 7.1 | 10.0 | 7.5 | 7.6 | 8.8 | 5.7 | 5.9 | 9.1 | 9.0 | Details |
| 27 | EFF755X...Site Code: EFF755XX-JE02.6Jenkins CreekJenkins Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/19/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 56 | 4 | 3 | 3 | 10 | 13 | 8 | 1 | 32.0% | 17.6% | 11.0% | 500 | 57.8 | 10.0 | 4.3 | 2.9 | 2.5 | 3.5 | 7.5 | 1.4 | 10.0 | 8.3 | 7.4 | Details |
| 28 | LF04, Lon...Site Code: LF04Longfellow CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Statu...8/12/2025
Status & Trends
City of Seattle | 11 | 1 | 0 | 0 | 1 | 2 | 1 | 0 | 87.0% | 0.0% | 27.0% | 500 | 3.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 3.7 | Details |
| 29 | LFMA095...Site Code: LFMA0954Longfellow CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/29/2026
Status & Trends
City of Seattle | 23 | 1 | 0 | 0 | 1 | 5 | 2 | 0 | 46.3% | 1.8% | 43.3% | 499 | 6.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.1 | 0.4 | 0.0 | Details |
| 30 | LFMA255...Site Code: LFMA2559Longfellow CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/29/2026
Status & Trends
City of Seattle | 21 | 1 | 0 | 0 | 1 | 4 | 4 | 0 | 82.0% | 2.8% | 75.8% | 500 | 3.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.5 | 0.0 | 0.0 | 0.9 | 0.0 | Details |
| 31 | LFMA339...Site Code: LFMA3396Longfellow CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2024, Statu...8/5/2024
Status & Trends
City of Seattle | 19 | 1 | 2 | 1 | 4 | 4 | 3 | 0 | 76.4% | 2.0% | 59.2% | 500 | 3.2 | 0.0 | 0.0 | 1.4 | 0.0 | 0.0 | 1.2 | 0.0 | 0.0 | 0.5 | 0.0 | Details |
| 32 | LFMA349...Site Code: LFMA3490Longfellow CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/29/2026
Status & Trends
City of Seattle | 18 | 1 | 2 | 0 | 3 | 5 | 2 | 0 | 84.4% | 0.6% | 62.4% | 500 | 1.4 | 0.0 | 0.0 | 1.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | Details |
| 33 | PU01, Pu...Site Code: PU01Puget CreekLongfellow Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/16/2026
Status & Trends
City of Seattle | 26 | 1 | 2 | 1 | 4 | 3 | 3 | 0 | 64.2% | 1.6% | 49.2% | 500 | 4.3 | 0.0 | 0.0 | 1.4 | 0.0 | 0.0 | 1.2 | 0.0 | 1.3 | 0.3 | 0.0 | Details |
| 34 | 09LOW07...Site Code: 09LOW0753Green River - Lower tributary (S 277th St.)Lower Green River - E SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, Ambi...8/15/2023
Ambient Monitoring
King County - DNRP | 24 | 0 | 0 | 0 | 0 | 2 | 7 | 0 | 52.3% | 6.5% | 19.4% | 155 | 19.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 6.2 | 0.0 | 4.5 | 2.8 | 5.5 | Details |
| 35 | 09LOW07...Site Code: 09LOW0751Olson CreekLower Green River - E SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...9/17/2025
Ambient Monitoring
King County - DNRP | 44 | 5 | 6 | 3 | 14 | 12 | 6 | 3 | 37.0% | 10.4% | 0.4% | 500 | 56.7 | 5.9 | 5.7 | 7.1 | 2.5 | 2.9 | 5.0 | 4.3 | 8.6 | 4.7 | 9.9 | Details |
| 36 | 09LOW03...Site Code: 09LOW0325Lower Green River tributary (0036B)Lower Green River - W SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...10/14/2025
Ambient Monitoring
King County - DNRP | 32 | 3 | 2 | 1 | 6 | 6 | 7 | 0 | 62.0% | 3.6% | 21.7% | 498 | 20.4 | 1.7 | 2.9 | 1.4 | 0.0 | 0.0 | 6.2 | 0.0 | 1.9 | 1.3 | 5.0 | Details |
| 37 | 09MID174...Site Code: 09MID1744Cristy CreekMiddle Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 40 | 4 | 7 | 7 | 18 | 20 | 11 | 8 | 65.4% | 19.0% | 39.0% | 500 | 63.4 | 4.5 | 4.3 | 8.6 | 7.5 | 7.6 | 10.0 | 10.0 | 1.0 | 9.0 | 0.9 | Details |
| 38 | 09MID181...Site Code: 09MID1817Cristy CreekMiddle Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 47 | 2 | 6 | 7 | 15 | 14 | 6 | 2 | 37.8% | 18.0% | 23.4% | 500 | 56.4 | 6.9 | 1.4 | 7.1 | 7.5 | 4.1 | 5.0 | 2.9 | 8.4 | 8.5 | 4.6 | Details |
| 39 | 09MID242...Site Code: 09MID2426Green River - Middle tributaryMiddle Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/29/2026
Ambient Monitoring
King County - DNRP | 57 | 5 | 10 | 7 | 22 | 19 | 13 | 7 | 36.0% | 21.8% | 4.4% | 500 | 88.2 | 10.0 | 5.7 | 10.0 | 7.5 | 7.1 | 10.0 | 10.0 | 8.9 | 10.0 | 9.0 | Details |
| 40 | 09MID195...Site Code: 09MID1958Icy CreekMiddle Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/28/2026
Ambient Monitoring
King County - DNRP | 40 | 9 | 8 | 4 | 21 | 17 | 5 | 8 | 66.0% | 7.2% | 0.2% | 500 | 61.7 | 4.5 | 10.0 | 10.0 | 3.8 | 5.9 | 3.8 | 10.0 | 0.8 | 3.1 | 10.0 | Details |
| 41 | 09MID137...Site Code: 09MID1374O'Grady CreekMiddle Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 50 | 2 | 6 | 7 | 15 | 16 | 10 | 2 | 46.0% | 16.0% | 18.2% | 500 | 61.6 | 7.9 | 1.4 | 7.1 | 7.5 | 5.3 | 10.0 | 2.9 | 6.2 | 7.5 | 5.8 | Details |
| 42 | 09MIL034...Site Code: 09MIL0340Mill Creek (Auburn)Mill Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/21/2026
Ambient Monitoring
King County - DNRP | 46 | 1 | 6 | 6 | 13 | 11 | 5 | 0 | 31.8% | 7.4% | 27.2% | 500 | 42.9 | 6.6 | 0.0 | 7.1 | 6.2 | 2.4 | 3.8 | 0.0 | 10.0 | 3.2 | 3.7 | Details |
| 43 | 09MIL039...Site Code: 09MIL0390Mill Creek (Auburn)Mill Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/21/2026
Ambient Monitoring
King County - DNRP | 41 | 3 | 5 | 5 | 13 | 12 | 2 | 0 | 29.4% | 13.0% | 14.0% | 500 | 44.1 | 4.8 | 2.9 | 5.7 | 5.0 | 2.9 | 0.0 | 0.0 | 10.0 | 6.0 | 6.7 | Details |
| 44 | 09NEW16...Site Code: 09NEW1657Newaukum CreekNewaukum Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/21/2025
Ambient Monitoring
King County - DNRP | 59 | 9 | 7 | 7 | 23 | 28 | 8 | 4 | 32.8% | 11.0% | 12.8% | 500 | 81.1 | 10.0 | 10.0 | 8.6 | 7.5 | 10.0 | 7.5 | 5.7 | 9.8 | 5.0 | 7.0 | Details |
| 45 | 09NEW21...Site Code: 09NEW2102Newaukum CreekNewaukum Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/29/2026
Ambient Monitoring
King County - DNRP | 55 | 10 | 9 | 5 | 24 | 25 | 6 | 8 | 34.8% | 18.8% | 5.4% | 500 | 86.5 | 9.7 | 10.0 | 10.0 | 5.0 | 10.0 | 5.0 | 10.0 | 9.2 | 8.9 | 8.7 | Details |
| 46 | 09NEW20...Site Code: 09NEW2076Newaukum Creek - N ForkNewaukum Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...9/11/2025
Ambient Monitoring
King County - DNRP | 40 | 8 | 6 | 4 | 18 | 22 | 7 | 4 | 42.8% | 20.4% | 2.6% | 500 | 72.3 | 4.5 | 10.0 | 7.1 | 3.8 | 8.8 | 6.2 | 5.7 | 7.1 | 9.7 | 9.4 | Details |
| 47 | 09NEW21...Site Code: 09NEW2128Newaukum Creek - N ForkNewaukum Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...7/29/2026
Ambient Monitoring
King County - DNRP | 64 | 9 | 6 | 10 | 25 | 22 | 6 | 5 | 29.0% | 13.8% | 1.0% | 500 | 84.3 | 10.0 | 10.0 | 7.1 | 10.0 | 8.8 | 5.0 | 7.1 | 10.0 | 6.4 | 9.8 | Details |
| 48 | 09SOO_b...Site Code: 09SOO_bug1Big Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Integr...8/13/2025
Integrated Streams Program
King County - DNRP | 44 | 5 | 8 | 6 | 19 | 25 | 9 | 4 | 55.6% | 7.6% | 6.0% | 500 | 67.8 | 5.9 | 5.7 | 10.0 | 6.2 | 10.0 | 8.8 | 5.7 | 3.6 | 3.3 | 8.6 | Details |
| 49 | 09SOO09...Site Code: 09SOO0943Big Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/13/2025
Ambient Monitoring
King County - DNRP | 46 | 6 | 9 | 4 | 19 | 20 | 6 | 3 | 60.8% | 7.8% | 2.6% | 500 | 59.4 | 6.6 | 7.1 | 10.0 | 3.8 | 7.6 | 5.0 | 4.3 | 2.2 | 3.4 | 9.4 | Details |
| 50 | EFF755X...Site Code: EFF755XX-BS00.7Big Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/20/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 45 | 5 | 9 | 5 | 19 | 18 | 7 | 3 | 51.0% | 12.2% | 1.6% | 500 | 64.0 | 6.2 | 5.7 | 10.0 | 5.0 | 6.5 | 6.2 | 4.3 | 4.9 | 5.6 | 9.6 | Details |
| 51 | EFF755X...Site Code: EFF755XX-BS04.7Big Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/25/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 46 | 7 | 6 | 7 | 20 | 23 | 9 | 6 | 55.0% | 3.8% | 6.8% | 500 | 70.1 | 6.6 | 8.6 | 7.1 | 7.5 | 9.4 | 8.8 | 8.6 | 3.8 | 1.4 | 8.4 | Details |
| 52 | 09SOO12...Site Code: 09SOO1209Little Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...9/18/2025
Ambient Monitoring
King County - DNRP | 44 | 7 | 7 | 5 | 19 | 20 | 9 | 6 | 46.2% | 4.0% | 15.4% | 500 | 67.1 | 5.9 | 8.6 | 8.6 | 5.0 | 7.6 | 8.8 | 8.6 | 6.2 | 1.5 | 6.4 | Details |
| 53 | 09SOO12...Site Code: 09SOO1283Little Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/12/2025
Ambient Monitoring
King County - DNRP | 41 | 7 | 6 | 5 | 18 | 17 | 6 | 4 | 53.3% | 11.3% | 4.0% | 497 | 60.6 | 4.8 | 8.6 | 7.1 | 5.0 | 5.9 | 5.0 | 5.7 | 4.2 | 5.2 | 9.1 | Details |
| 54 | EFF755X...Site Code: EFF755XX-LS00.3Little Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/20/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 44 | 7 | 6 | 4 | 17 | 18 | 9 | 4 | 41.6% | 7.2% | 10.6% | 500 | 64.3 | 5.9 | 8.6 | 7.1 | 3.8 | 6.5 | 8.8 | 5.7 | 7.4 | 3.1 | 7.5 | Details |
| 55 | EFF755X...Site Code: EFF755XX-MV00.2Meridian Valley CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...7/6/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 40 | 1 | 0 | 1 | 2 | 8 | 5 | 0 | 52.6% | 9.4% | 38.8% | 500 | 18.4 | 4.5 | 0.0 | 0.0 | 0.0 | 0.6 | 3.8 | 0.0 | 4.4 | 4.2 | 1.0 | Details |
| 56 | 09SOO11...Site Code: 09SOO1130Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2026, Ambi...8/10/2026
Ambient Monitoring
King County - DNRP | 47 | 7 | 9 | 8 | 24 | 27 | 9 | 8 | 51.4% | 14.6% | 2.8% | 500 | 83.9 | 6.9 | 8.6 | 10.0 | 8.8 | 10.0 | 8.8 | 10.0 | 4.8 | 6.8 | 9.3 | Details |
| 57 | 09SOO11...Site Code: 09SOO1134Soos CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/13/2025
Ambient Monitoring
King County - DNRP | 46 | 5 | 8 | 9 | 22 | 25 | 10 | 8 | 56.2% | 5.4% | 37.2% | 500 | 69.3 | 6.6 | 5.7 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 3.5 | 2.2 | 1.3 | Details |
| 58 | 09SOO10...Site Code: 09SOO1022Soosette CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2025, Ambi...8/18/2025
Ambient Monitoring
King County - DNRP | 51 | 10 | 8 | 6 | 24 | 23 | 8 | 6 | 36.4% | 39.0% | 2.4% | 500 | 88.3 | 8.3 | 10.0 | 10.0 | 6.2 | 9.4 | 7.5 | 8.6 | 8.8 | 10.0 | 9.4 | Details |
| 59 | EFF755X...Site Code: EFF755XX-SO01.3Soosette CreekSoos Creek SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, TMD...9/18/2023
TMDL Biological Monitoring of Soos Creek watershed
Washington State Department of Ecology | 41 | 6 | 3 | 8 | 17 | 16 | 5 | 2 | 52.2% | 43.6% | 0.6% | 500 | 59.9 | 4.8 | 7.1 | 2.9 | 8.8 | 5.3 | 3.8 | 2.9 | 4.5 | 10.0 | 9.9 | Details |
| 60 | BIO06600...Site Code: BIO06600-SUND04Sunday CreekUpper Green River SubbasinDuwamish - Green River BasinWRIA 9 - Duwamish-Green | 2023, Ambi...8/7/2023
Ambient Freshwater Biological Monitoring Program
Washington State Department of Ecology | 49 | 8 | 9 | 7 | 24 | 21 | 9 | 10 | 35.6% | 31.0% | 0.3% | 323 | 91.0 | 7.6 | 10.0 | 10.0 | 7.5 | 8.2 | 8.8 | 10.0 | 9.0 | 10.0 | 9.9 | Details |
| 61 | JoesFW5...Site Code: JoesFW509Joes CreekDumas Bay SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Macr...9/9/2025
Macroinvertebrate Sampling
City of Federal Way | 37 | 3 | 5 | 3 | 11 | 12 | 4 | 0 | 57.4% | 3.4% | 11.6% | 500 | 31.6 | 3.4 | 2.9 | 5.7 | 2.5 | 2.9 | 2.5 | 0.0 | 3.1 | 1.2 | 7.3 | Details |
| 62 | JoesFWL...Site Code: JoesFWLMRJoes CreekDumas Bay SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Macr...9/9/2025
Macroinvertebrate Sampling
City of Federal Way | 37 | 3 | 4 | 4 | 11 | 10 | 6 | 0 | 63.8% | 3.6% | 45.8% | 500 | 23.8 | 3.4 | 2.9 | 4.3 | 3.8 | 1.8 | 5.0 | 0.0 | 1.4 | 1.3 | 0.0 | Details |
| 63 | LakFWEa...Site Code: LakFWEastLakota CreekDumas Bay SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Macr...9/9/2025
Macroinvertebrate Sampling
City of Federal Way | 28 | 3 | 5 | 4 | 12 | 8 | 3 | 0 | 72.6% | 2.4% | 58.0% | 500 | 15.2 | 0.3 | 2.9 | 5.7 | 3.8 | 0.6 | 1.2 | 0.0 | 0.0 | 0.7 | 0.0 | Details |
| 64 | LakFWW...Site Code: LakFWWWTPLakota CreekDumas Bay SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Macr...9/9/2025
Macroinvertebrate Sampling
City of Federal Way | 27 | 3 | 4 | 3 | 10 | 9 | 4 | 1 | 71.8% | 2.6% | 53.4% | 500 | 15.5 | 0.0 | 2.9 | 4.3 | 2.5 | 1.2 | 2.5 | 1.4 | 0.0 | 0.8 | 0.0 | Details |
| 65 | FA02, Fau...Site Code: FA02Fauntleroy CreekLower Puget Sound - Seattle SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/22/2026
Status & Trends
City of Seattle | 36 | 2 | 3 | 3 | 8 | 9 | 7 | 1 | 43.2% | 16.6% | 3.4% | 500 | 42.7 | 3.1 | 1.4 | 2.9 | 2.5 | 1.2 | 6.2 | 1.4 | 7.0 | 7.8 | 9.2 | Details |
| 66 | FAMA085...Site Code: FAMA0851Fauntleroy CreekLower Puget Sound - Seattle SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/22/2026
Status & Trends
City of Seattle | 43 | 2 | 2 | 4 | 8 | 10 | 5 | 1 | 38.1% | 19.2% | 7.4% | 499 | 44.8 | 5.5 | 1.4 | 1.4 | 3.8 | 1.8 | 3.8 | 1.4 | 8.4 | 9.1 | 8.3 | Details |
| 67 | Fauntlero...Site Code: FauntleroyParkFauntleroy CreekLower Puget Sound - Seattle SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Sno-...9/23/2025
Sno-King Watershed Council benthic macroinvertebrate analysis of urban & suburban streams in King and Snohomish Counties
Sno-King Watershed Council | 36 | 5 | 5 | 4 | 14 | 11 | 6 | 2 | 56.2% | 8.6% | 2.4% | 500 | 45.2 | 3.1 | 5.7 | 5.7 | 3.8 | 2.4 | 5.0 | 2.9 | 3.5 | 3.8 | 9.4 | Details |
| 68 | Fauntlero...Site Code: FauntleroyRavineFauntleroy CreekLower Puget Sound - Seattle SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Sno-...9/23/2025
Sno-King Watershed Council benthic macroinvertebrate analysis of urban & suburban streams in King and Snohomish Counties
Sno-King Watershed Council | 29 | 4 | 4 | 3 | 11 | 9 | 5 | 1 | 62.8% | 12.8% | 4.0% | 500 | 34.8 | 0.7 | 4.3 | 4.3 | 2.5 | 1.2 | 3.8 | 1.4 | 1.7 | 5.9 | 9.1 | Details |
| 69 | SCMA906...Site Code: SCMA9065Schmitz CreekLower Puget Sound - Seattle SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2026, Statu...7/29/2026
Status & Trends
City of Seattle | 29 | 1 | 1 | 1 | 3 | 8 | 3 | 1 | 36.8% | 11.8% | 21.1% | 76 | 23.2 | 0.7 | 0.0 | 0.0 | 0.0 | 0.6 | 1.2 | 1.4 | 8.7 | 5.4 | 5.1 | Details |
| 70 | Miller_Clu...Site Code: Miller_ClubMiller CreekMiller Creek SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...9/10/2025
Integrated Streams Program
King County - DNRP | 29 | 4 | 3 | 2 | 9 | 11 | 4 | 1 | 64.6% | 0.8% | 36.0% | 500 | 18.2 | 0.7 | 4.3 | 2.9 | 1.2 | 2.4 | 2.5 | 1.4 | 1.2 | 0.0 | 1.6 | Details |
| 71 | Miller_Co...Site Code: Miller_CoveMiller CreekMiller Creek SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Miller...9/10/2025
Miller-Walker
King County - DNRP | 33 | 3 | 4 | 2 | 9 | 12 | 5 | 2 | 63.8% | 1.2% | 35.4% | 500 | 23.3 | 2.1 | 2.9 | 4.3 | 1.2 | 2.9 | 3.8 | 2.9 | 1.4 | 0.1 | 1.8 | Details |
| 72 | Miller_SW...Site Code: Miller_SWSSDMiller CreekMiller Creek SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Miller...9/10/2025
Miller-Walker
King County - DNRP | 26 | 4 | 3 | 2 | 9 | 10 | 1 | 1 | 71.4% | 1.8% | 52.4% | 500 | 12.0 | 0.0 | 4.3 | 2.9 | 1.2 | 1.8 | 0.0 | 1.4 | 0.0 | 0.4 | 0.0 | Details |
| 73 | WalkerPre...Site Code: WalkerPreserveWalker CreekMiller Creek SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Miller...9/10/2025
Miller-Walker
King County - DNRP | 27 | 4 | 4 | 3 | 11 | 11 | 3 | 1 | 67.0% | 7.0% | 5.2% | 500 | 28.4 | 0.0 | 4.3 | 4.3 | 2.5 | 2.4 | 1.2 | 1.4 | 0.5 | 3.0 | 8.8 | Details |
| 74 | BeallVNC...Site Code: BeallVNC1Beall CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2023, Vash...9/21/2023
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 22 | 2 | 2 | 4 | 8 | 9 | 7 | 1 | 67.5% | 13.0% | 14.8% | 169 | 31.0 | 0.9 | 1.4 | 1.4 | 3.8 | 1.2 | 6.2 | 1.4 | 2.1 | 6.0 | 6.6 | Details |
| 75 | VashChris...Site Code: VashChrisChristenson CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...9/23/2025
Integrated Streams Program
King County - DNRP | 48 | 3 | 5 | 5 | 13 | 15 | 8 | 3 | 41.0% | 10.4% | 2.0% | 500 | 59.1 | 7.2 | 2.9 | 5.7 | 5.0 | 4.7 | 7.5 | 4.3 | 7.6 | 4.7 | 9.5 | Details |
| 76 | 65B, Fish...Site Code: 65BFisher Creek (Vashon)Vashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2022, Regul...10/6/2022
Regulatory Effectiveness
King County - DNRP | 26 | 4 | 6 | 5 | 15 | 12 | 4 | 4 | 62.2% | 10.4% | 3.1% | 357 | 52.7 | 4.8 | 4.3 | 7.1 | 5.0 | 4.1 | 2.5 | 5.7 | 5.2 | 4.7 | 9.3 | Details |
| 77 | 65B, Fish...Site Code: 65BFisher Creek (Vashon)Vashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2022, Vash...8/30/2022
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 41 | 5 | 8 | 8 | 21 | 17 | 6 | 5 | 56.0% | 17.8% | 7.2% | 500 | 74.0 | 9.1 | 5.7 | 10.0 | 8.8 | 6.2 | 5.0 | 7.1 | 5.3 | 8.4 | 8.3 | Details |
| 78 | P847, Gor...Site Code: P847Gorsuch CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2024, Vash...9/5/2024
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 37 | 5 | 7 | 6 | 18 | 15 | 7 | 3 | 41.2% | 11.2% | 26.3% | 464 | 61.8 | 7.4 | 5.7 | 8.6 | 6.2 | 5.0 | 6.2 | 4.3 | 9.4 | 5.1 | 3.9 | Details |
| 79 | VashGors...Site Code: VashGorsuchGorsuch CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...10/6/2025
Integrated Streams Program
King County - DNRP | 49 | 5 | 5 | 7 | 17 | 14 | 5 | 2 | 60.2% | 5.8% | 21.6% | 500 | 47.0 | 7.6 | 5.7 | 5.7 | 7.5 | 4.1 | 3.8 | 2.9 | 2.4 | 2.4 | 5.0 | Details |
| 80 | 28A, Judd ...Site Code: 28AJudd CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...10/6/2025
Integrated Streams Program
King County - DNRP | 49 | 5 | 5 | 6 | 16 | 18 | 7 | 4 | 53.6% | 12.0% | 1.0% | 500 | 63.1 | 7.6 | 5.7 | 5.7 | 6.2 | 6.5 | 6.2 | 5.7 | 4.2 | 5.5 | 9.8 | Details |
| 81 | JuddVNC...Site Code: JuddVNC1Judd CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2024, Vash...8/22/2024
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 44 | 5 | 7 | 6 | 18 | 19 | 9 | 3 | 40.4% | 22.0% | 3.6% | 500 | 79.8 | 10.0 | 5.7 | 8.6 | 6.2 | 7.5 | 8.8 | 4.3 | 9.6 | 10.0 | 9.2 | Details |
| 82 | E1236, S...Site Code: E1236Shinglemill CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2024, Vash...8/25/2024
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 28 | 3 | 6 | 6 | 15 | 13 | 6 | 5 | 76.0% | 10.4% | 6.0% | 500 | 48.9 | 3.5 | 2.9 | 7.1 | 6.2 | 3.8 | 5.0 | 7.1 | 0.0 | 4.7 | 8.6 | Details |
| 83 | ShingUp1...Site Code: ShingUp1Shinglemill CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2024, Vash...8/25/2024
Vashon Benthic Macroinvertebrate Sampling
Vashon Nature Center | 32 | 5 | 7 | 6 | 18 | 15 | 5 | 4 | 55.0% | 33.4% | 13.2% | 500 | 62.7 | 5.2 | 5.7 | 8.6 | 6.2 | 5.0 | 3.8 | 5.7 | 5.6 | 10.0 | 6.9 | Details |
| 84 | VashShin...Site Code: VashShingShinglemill CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...9/24/2025
Integrated Streams Program
King County - DNRP | 36 | 5 | 4 | 4 | 13 | 13 | 6 | 3 | 65.0% | 5.0% | 21.4% | 500 | 37.8 | 3.1 | 5.7 | 4.3 | 3.8 | 3.5 | 5.0 | 4.3 | 1.1 | 2.0 | 5.0 | Details |
| 85 | 65A, Tahl...Site Code: 65ATahlequah CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2022, Regul...10/6/2022
Regulatory Effectiveness
King County - DNRP | 29 | 5 | 7 | 6 | 18 | 13 | 5 | 4 | 69.0% | 6.6% | 30.0% | 500 | 50.1 | 6.2 | 5.7 | 8.6 | 6.2 | 4.7 | 3.8 | 5.7 | 3.4 | 2.8 | 3.0 | Details |
| 86 | VashTal, T...Site Code: VashTalTahlequah CreekVashon-Maury Island SubbasinPuget Sound (Duwamish-Green) BasinWRIA 9 - Duwamish-Green | 2025, Integr...9/23/2025
Integrated Streams Program
King County - DNRP | 48 | 5 | 5 | 7 | 17 | 18 | 5 | 4 | 45.8% | 4.4% | 6.2% | 500 | 58.6 | 7.2 | 5.7 | 5.7 | 7.5 | 6.5 | 3.8 | 5.7 | 6.3 | 1.7 | 8.6 | Details |