| 1 | 08CED_b... Site Code: 08CED_bug2Carey CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...10/7/2025
Integrated Streams Program
King County - DNRP | 62 | 7 | 9 | 9 | 25 | 29 | 13 | 7 | 20.6% | 20.6% | 4.0% | 500 | 97.4 | 10.0 | 8.6 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 9.8 | 9.1 | Details |
| 2 | 08ISS472...Site Code: 08ISS4724Carey CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...9/23/2025
Ambient Monitoring
King County - DNRP | 47 | 8 | 7 | 5 | 20 | 24 | 7 | 5 | 39.4% | 10.4% | 13.8% | 500 | 73.4 | 6.9 | 10.0 | 8.6 | 5.0 | 10.0 | 6.2 | 7.1 | 8.0 | 4.7 | 6.8 | Details |
| 3 | 08ISS429...Site Code: 08ISS4294Fifteenmile CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...9/9/2025
Ambient Monitoring
King County - DNRP | 43 | 8 | 5 | 6 | 19 | 23 | 7 | 7 | 48.6% | 6.4% | 8.0% | 500 | 69.5 | 5.5 | 10.0 | 5.7 | 6.2 | 9.4 | 6.2 | 10.0 | 5.5 | 2.7 | 8.1 | Details |
| 4 | 08ISS457...Site Code: 08ISS4573High Point CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP | 64 | 12 | 11 | 6 | 29 | 30 | 9 | 10 | 27.2% | 18.0% | 1.4% | 500 | 93.2 | 10.0 | 10.0 | 10.0 | 6.2 | 10.0 | 8.8 | 10.0 | 10.0 | 8.5 | 9.7 | Details |
| 5 | 08ISS473...Site Code: 08ISS4730Holder CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/25/2025
Ambient Monitoring
King County - DNRP | 52 | 9 | 8 | 5 | 22 | 24 | 8 | 8 | 52.2% | 7.4% | 1.8% | 500 | 78.4 | 8.6 | 10.0 | 10.0 | 5.0 | 10.0 | 7.5 | 10.0 | 4.5 | 3.2 | 9.6 | Details |
| 6 | 08ISS473...Site Code: 08ISS4735Holder Creek tributaryIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/14/2025
Ambient Monitoring
King County - DNRP | 68 | 8 | 12 | 13 | 33 | 25 | 14 | 9 | 23.6% | 18.4% | 1.0% | 500 | 98.5 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 8.7 | 9.8 | Details |
| 7 | 08ISS_bu...Site Code: 08ISS_bug1Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Integr...8/25/2025
Integrated Streams Program
King County - DNRP | 45 | 7 | 8 | 5 | 20 | 23 | 8 | 3 | 40.2% | 6.8% | 8.4% | 500 | 69.7 | 6.2 | 8.6 | 10.0 | 5.0 | 9.4 | 7.5 | 4.3 | 7.8 | 2.9 | 8.0 | Details |
| 8 | 08ISS387...Site Code: 08ISS3877Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/7/2025
Ambient Monitoring
King County - DNRP | 51 | 8 | 5 | 7 | 20 | 25 | 8 | 3 | 45.8% | 6.2% | 2.8% | 500 | 71.5 | 8.3 | 10.0 | 5.7 | 7.5 | 10.0 | 7.5 | 4.3 | 6.3 | 2.6 | 9.3 | Details |
| 9 | 08ISS396...Site Code: 08ISS3962Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/23/2025
Ambient Monitoring
King County - DNRP | 58 | 9 | 6 | 10 | 25 | 29 | 5 | 6 | 37.4% | 10.6% | 3.2% | 500 | 82.1 | 10.0 | 10.0 | 7.1 | 10.0 | 10.0 | 3.8 | 8.6 | 8.5 | 4.8 | 9.3 | Details |
| 10 | IC-1, Issa...Site Code: IC-1Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 54 | 11 | 7 | 5 | 23 | 27 | 7 | 6 | 38.4% | 5.4% | 2.4% | 500 | 77.6 | 9.3 | 10.0 | 8.6 | 5.0 | 10.0 | 6.2 | 8.6 | 8.3 | 2.2 | 9.4 | Details |
| 11 | IC-6, Issa...Site Code: IC-6Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 46 | 7 | 7 | 4 | 18 | 24 | 7 | 5 | 47.4% | 8.8% | 11.8% | 500 | 67.8 | 6.6 | 8.6 | 8.6 | 3.8 | 10.0 | 6.2 | 7.1 | 5.8 | 3.9 | 7.3 | Details |
| 12 | IC-6Ua, Is...Site Code: IC-6UaIssaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 70 | 11 | 8 | 8 | 27 | 33 | 8 | 4 | 35.2% | 11.4% | 5.8% | 500 | 85.0 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 7.5 | 5.7 | 9.1 | 5.2 | 8.7 | Details |
| 13 | IC-7a, Iss...Site Code: IC-7aIssaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 55 | 6 | 6 | 7 | 19 | 24 | 8 | 2 | 31.0% | 7.6% | 5.6% | 500 | 73.8 | 9.7 | 7.1 | 7.1 | 7.5 | 10.0 | 7.5 | 2.9 | 10.0 | 3.3 | 8.7 | Details |
| 14 | IC-7d, Iss...Site Code: IC-7dIssaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 58 | 10 | 6 | 8 | 24 | 30 | 6 | 4 | 40.8% | 7.8% | 5.8% | 500 | 76.3 | 10.0 | 10.0 | 7.1 | 8.8 | 10.0 | 5.0 | 5.7 | 7.6 | 3.4 | 8.7 | Details |
| 15 | IC-8D, Iss...Site Code: IC-8DIssaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/12/2025
Aquatic Resources Monitoring
City of Issaquah | 77 | 12 | 7 | 10 | 29 | 41 | 7 | 7 | 28.2% | 9.8% | 6.6% | 500 | 87.7 | 10.0 | 10.0 | 8.6 | 10.0 | 10.0 | 6.2 | 10.0 | 10.0 | 4.4 | 8.5 | Details |
| 16 | IC-9, Issa...Site Code: IC-9Issaquah CreekIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/20/2025
Aquatic Resources Monitoring
City of Issaquah | 60 | 9 | 9 | 8 | 26 | 29 | 9 | 2 | 48.0% | 9.4% | 4.8% | 500 | 79.1 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 8.8 | 2.9 | 5.7 | 4.2 | 8.9 | Details |
| 17 | 08ISS474...Site Code: 08ISS4748Issaquah Creek - E ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...8/27/2025
Ambient Monitoring
King County - DNRP | 48 | 7 | 6 | 6 | 19 | 24 | 7 | 6 | 44.8% | 13.4% | 11.8% | 500 | 74.0 | 7.2 | 8.6 | 7.1 | 6.2 | 10.0 | 6.2 | 8.6 | 6.5 | 6.2 | 7.3 | Details |
| 18 | 08ISS488...Site Code: 08ISS4884Issaquah Creek - E ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/23/2025
Ambient Monitoring
King County - DNRP | 56 | 7 | 12 | 9 | 28 | 26 | 10 | 9 | 49.6% | 8.6% | 0.0% | 500 | 87.6 | 10.0 | 8.6 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 5.2 | 3.8 | 10.0 | Details |
| 19 | EFIC-1U, ...Site Code: EFIC-1UIssaquah Creek - E ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/20/2025
Aquatic Resources Monitoring
City of Issaquah | 57 | 9 | 7 | 9 | 25 | 29 | 6 | 5 | 31.2% | 6.8% | 7.6% | 500 | 81.8 | 10.0 | 10.0 | 8.6 | 10.0 | 10.0 | 5.0 | 7.1 | 10.0 | 2.9 | 8.2 | Details |
| 20 | NFIC-1, Is...Site Code: NFIC-1Issaquah Creek - N ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/1/2025
Aquatic Resources Monitoring
City of Issaquah | 31 | 2 | 2 | 3 | 7 | 9 | 4 | 0 | 71.8% | 3.0% | 47.5% | 497 | 11.4 | 1.4 | 1.4 | 1.4 | 2.5 | 1.2 | 2.5 | 0.0 | 0.0 | 1.0 | 0.0 | Details |
| 21 | NFIC-2, Is...Site Code: NFIC-2Issaquah Creek - N ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/20/2025
Aquatic Resources Monitoring
City of Issaquah | 25 | 3 | 4 | 4 | 11 | 11 | 7 | 3 | 91.2% | 0.4% | 1.8% | 500 | 33.4 | 0.0 | 2.9 | 4.3 | 3.8 | 2.4 | 6.2 | 4.3 | 0.0 | 0.0 | 9.6 | Details |
| 22 | NFIC-4, Is...Site Code: NFIC-4Issaquah Creek - N ForkIssaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Aquat...8/20/2025
Aquatic Resources Monitoring
City of Issaquah | 39 | 1 | 0 | 4 | 5 | 14 | 3 | 0 | 58.4% | 4.2% | 52.3% | 495 | 17.7 | 4.1 | 0.0 | 0.0 | 3.8 | 4.1 | 1.2 | 0.0 | 2.9 | 1.6 | 0.0 | Details |
| 23 | 08ISS395...Site Code: 08ISS3958Issaquah Creek tributary (0198)Issaquah Creek SubbasinSammamish River BasinWRIA 8 - Cedar-Sammamish | 2025, Ambi...7/23/2025
Ambient Monitoring
King County - DNRP | 56 | 4 | 8 | 6 | 18 | 14 | 9 | 3 | 41.2% | 7.2% | 6.8% | 500 | 66.7 | 10.0 | 4.3 | 10.0 | 6.2 | 4.1 | 8.8 | 4.3 | 7.5 | 3.1 | 8.4 | Details |