| 1 | E716, Ce... Site Code: E716Cedar River - Lower tributaryLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2010, ESA ...8/25/2010
ESA Water Quality
King County - Roads | 37 | 6 | 7 | 10 | 23 | 17 | 7 | 2 | 45.6% | 7.8% | 1.2% | 500 | 74.6 | 10.0 | 7.1 | 8.6 | 10.0 | 7.1 | 6.2 | 2.9 | 9.6 | 3.4 | 9.7 | Details |
| 2 | E725, Ce...Site Code: E725Cedar River - Lower tributary (0306)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2010, ESA ...8/24/2010
ESA Water Quality
King County - Roads | 12 | 2 | 2 | 0 | 4 | 3 | 1 | 1 | 64.5% | 0.0% | 10.5% | 76 | 16.4 | 0.0 | 1.4 | 1.4 | 0.0 | 0.0 | 0.0 | 1.4 | 4.6 | 0.0 | 7.6 | Details |
| 3 | Stewart B...Site Code: Stewart BackgroundCedar River - Lower tributary (0307)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2014, CIP S...9/9/2014
CIP Support
King County - Roads | 44 | 1 | 6 | 6 | 13 | 11 | 6 | 0 | 33.5% | 22.4% | 19.6% | 281 | 51.6 | 5.9 | 0.0 | 7.1 | 6.2 | 2.4 | 5.0 | 0.0 | 9.6 | 10.0 | 5.4 | Details |
| 4 | Stewart L...Site Code: Stewart LowerCedar River - Lower tributary (0307)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2014, CIP S...9/9/2014
CIP Support
King County - Roads | 44 | 3 | 4 | 6 | 13 | 14 | 6 | 2 | 34.4% | 25.8% | 15.2% | 500 | 57.0 | 5.9 | 2.9 | 4.3 | 6.2 | 4.1 | 5.0 | 2.9 | 9.4 | 10.0 | 6.5 | Details |
| 5 | Stewart U...Site Code: Stewart UpperCedar River - Lower tributary (0307)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2014, CIP S...9/9/2014
CIP Support
King County - Roads | 39 | 5 | 5 | 7 | 17 | 14 | 5 | 2 | 37.2% | 15.4% | 11.5% | 253 | 56.9 | 4.1 | 5.7 | 5.7 | 7.5 | 4.1 | 3.8 | 2.9 | 8.6 | 7.2 | 7.3 | Details |
| 6 | 08CED28...Site Code: 08CED2898Cedar River - Lower tributary (0311)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...7/24/2023
Ambient Monitoring
King County - DNRP | 50 | 3 | 4 | 3 | 10 | 10 | 7 | 1 | 43.9% | 24.0% | 6.4% | 499 | 52.3 | 7.9 | 2.9 | 4.3 | 2.5 | 1.8 | 6.2 | 1.4 | 6.8 | 10.0 | 8.5 | Details |
| 7 | 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 | 7 | 30.9% | 11.0% | 7.0% | 473 | 73.7 | 4.8 | 10.0 | 7.1 | 5.0 | 7.1 | 6.2 | 10.0 | 10.0 | 5.0 | 8.4 | Details |
| 8 | WAM0660...Site Code: WAM06600-083667Hotel Creek (0342)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2013, WRIA...8/13/2013
WRIA08_WS_Survey
King County - DNRP | 50 | 7 | 10 | 8 | 25 | 25 | 13 | 11 | 25.6% | 34.0% | 0.2% | 500 | 97.3 | 10.0 | 8.6 | 10.0 | 8.8 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | Details |
| 9 | 08CED27...Site Code: 08CED2711Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...9/19/2023
Ambient Monitoring
King County - DNRP | 31 | 3 | 4 | 5 | 12 | 11 | 6 | 0 | 68.6% | 7.6% | 6.5% | 369 | 32.8 | 1.4 | 2.9 | 4.3 | 5.0 | 2.4 | 5.0 | 0.0 | 0.1 | 3.3 | 8.5 | Details |
| 10 | Cedar09, ...Site Code: Cedar09Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, KC Hi...8/22/2002
KC Historical
King County - DNRP | 20 | 2 | 2 | 4 | 8 | 5 | 3 | 0 | 64.6% | 3.0% | 13.2% | 500 | 22.3 | 1.9 | 1.4 | 1.4 | 3.8 | 0.0 | 1.2 | 0.0 | 4.6 | 1.0 | 6.9 | Details |
| 11 | cedar10, ...Site Code: cedar10Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2000, KC Hi...8/23/2000
KC Historical
King County - DNRP | 17 | 2 | 1 | 0 | 3 | 5 | 4 | 0 | 73.9% | 0.0% | 12.1% | 207 | 13.7 | 0.5 | 1.4 | 0.0 | 0.0 | 0.0 | 2.5 | 0.0 | 2.1 | 0.0 | 7.2 | Details |
| 12 | WAM0660...Site Code: WAM06600-092899Madsen CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2013, WRIA...7/9/2013
WRIA08_WS_Survey
King County - DNRP | 26 | 1 | 5 | 4 | 10 | 12 | 5 | 0 | 50.9% | 20.0% | 27.9% | 499 | 38.7 | 2.6 | 0.0 | 5.7 | 3.8 | 3.1 | 3.8 | 0.0 | 6.7 | 9.5 | 3.5 | Details |
| 13 | 08CED24...Site Code: 08CED2433Maplewood CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...9/18/2023
Ambient Monitoring
King County - DNRP | 33 | 4 | 4 | 5 | 13 | 16 | 9 | 2 | 78.6% | 6.0% | 15.4% | 500 | 41.5 | 2.1 | 4.3 | 4.3 | 5.0 | 5.3 | 8.8 | 2.9 | 0.0 | 2.5 | 6.4 | Details |
| 14 | 08CED25...Site Code: 08CED2518Molasses CreekLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...8/14/2023
Ambient Monitoring
King County - DNRP | 44 | 4 | 6 | 6 | 16 | 18 | 8 | 1 | 44.4% | 24.8% | 0.6% | 500 | 65.4 | 5.9 | 4.3 | 7.1 | 6.2 | 6.5 | 7.5 | 1.4 | 6.6 | 10.0 | 9.9 | Details |
| 15 | cedar01, ...Site Code: cedar01Peterson Creek (Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, KC Hi...9/26/2002
KC Historical
King County - DNRP | 32 | 4 | 5 | 8 | 17 | 19 | 9 | 5 | 41.1% | 18.4% | 3.9% | 467 | 78.3 | 7.6 | 4.3 | 5.7 | 8.8 | 8.2 | 8.8 | 7.1 | 10.0 | 8.7 | 9.1 | Details |
| 16 | cedar02, ...Site Code: cedar02Peterson Creek (Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, KC Hi...9/4/2002
KC Historical
King County - DNRP | 18 | 2 | 4 | 2 | 8 | 6 | 3 | 0 | 67.8% | 3.8% | 5.0% | 500 | 23.7 | 1.0 | 1.4 | 4.3 | 1.2 | 0.6 | 1.2 | 0.0 | 3.7 | 1.4 | 8.8 | Details |
| 17 | E633-CIP-...Site Code: E633-CIP-1Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2011, CIP S...9/23/2011
CIP Support
King County - Roads | 36 | 8 | 8 | 8 | 24 | 21 | 7 | 7 | 46.6% | 20.0% | 6.4% | 500 | 91.3 | 9.5 | 10.0 | 10.0 | 8.8 | 9.4 | 6.2 | 10.0 | 9.3 | 9.5 | 8.5 | Details |
| 18 | E633-CIP-...Site Code: E633-CIP-2Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2011, CIP S...9/23/2011
CIP Support
King County - Roads | 34 | 5 | 7 | 8 | 20 | 19 | 8 | 7 | 51.8% | 10.8% | 0.8% | 500 | 80.0 | 8.6 | 5.7 | 8.6 | 8.8 | 8.2 | 7.5 | 10.0 | 7.9 | 4.9 | 9.8 | Details |
| 19 | E633-CIP-...Site Code: E633-CIP-3Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2011, CIP S...9/23/2011
CIP Support
King County - Roads | 40 | 8 | 7 | 8 | 23 | 24 | 10 | 7 | 41.8% | 12.8% | 1.4% | 500 | 92.9 | 10.0 | 10.0 | 8.6 | 8.8 | 10.0 | 10.0 | 10.0 | 10.0 | 5.9 | 9.7 | Details |
| 20 | 08CE01, ...Site Code: 08CE01Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2018, Resto...8/30/2018
Restoration and Protection of Select B-IBI Basins - Ecology transect method
King County - DNRP | 57 | 7 | 10 | 12 | 29 | 27 | 11 | 8 | 29.0% | 16.6% | 5.4% | 500 | 95.1 | 10.0 | 8.6 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 7.8 | 8.7 | Details |
| 21 | 08CED41...Site Code: 08CED4192Rock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...8/8/2023
Ambient Monitoring
King County - DNRP | 61 | 9 | 11 | 10 | 30 | 28 | 9 | 8 | 34.6% | 15.4% | 10.0% | 500 | 92.9 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 8.8 | 10.0 | 9.3 | 7.2 | 7.7 | Details |
| 22 | RO, Rock ...Site Code: RORock Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 1999, B. Kl...9/1/1999
B. Kleindl's Thesis
University of Washington | 32 | 7 | 5 | 9 | 21 | 19 | 9 | 9 | 51.2% | 16.0% | 0.8% | 500 | 84.3 | 7.6 | 8.6 | 5.7 | 10.0 | 8.2 | 8.8 | 10.0 | 8.1 | 7.5 | 9.8 | Details |
| 23 | 08CED41...Site Code: 08CED4115Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, Ambi...9/4/2002
Ambient Monitoring
King County - DNRP | 30 | 4 | 6 | 7 | 17 | 16 | 7 | 1 | 65.8% | 6.2% | 4.2% | 500 | 55.6 | 6.7 | 4.3 | 7.1 | 7.5 | 6.5 | 6.2 | 1.4 | 4.3 | 2.6 | 9.0 | Details |
| 24 | 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 |
| 25 | cedar05, ...Site Code: cedar05Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, KC Hi...8/21/2002
KC Historical
King County - DNRP | 33 | 5 | 7 | 7 | 19 | 18 | 7 | 4 | 59.0% | 15.6% | 3.8% | 500 | 72.0 | 8.1 | 5.7 | 8.6 | 7.5 | 7.6 | 6.2 | 5.7 | 6.1 | 7.3 | 9.1 | Details |
| 26 | cedar06, ...Site Code: cedar06Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2000, KC Hi...9/16/2000
KC Historical
King County - DNRP | 36 | 7 | 8 | 9 | 24 | 24 | 8 | 5 | 37.6% | 7.6% | 6.0% | 500 | 84.6 | 9.5 | 8.6 | 10.0 | 10.0 | 10.0 | 7.5 | 7.1 | 10.0 | 3.3 | 8.6 | Details |
| 27 | E660, Tay...Site Code: E660Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2010, ESA ...8/25/2010
ESA Water Quality
King County - Roads | 37 | 8 | 7 | 9 | 24 | 23 | 10 | 7 | 43.4% | 11.8% | 11.6% | 500 | 91.3 | 10.0 | 10.0 | 8.6 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 5.4 | 7.3 | Details |
| 28 | E701, Tay...Site Code: E701Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2010, ESA ...8/25/2010
ESA Water Quality
King County - Roads | 32 | 7 | 3 | 7 | 17 | 21 | 7 | 4 | 52.8% | 8.8% | 19.6% | 500 | 64.9 | 7.6 | 8.6 | 2.9 | 7.5 | 9.4 | 6.2 | 5.7 | 7.7 | 3.9 | 5.4 | Details |
| 29 | WAM0660...Site Code: WAM06600-115443Taylor Creek/Jem Creek (Lower Cedar)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2013, WRIA...8/26/2013
WRIA08_WS_Survey
King County - DNRP | 29 | 3 | 6 | 6 | 15 | 18 | 6 | 3 | 45.0% | 28.1% | 6.0% | 498 | 63.3 | 3.9 | 2.9 | 7.1 | 6.2 | 6.9 | 5.0 | 4.3 | 8.3 | 10.0 | 8.6 | Details |
| 30 | cedar07, ...Site Code: cedar07Taylor Creek/Jem Creek tributaryLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2002, KC Hi...9/4/2002
KC Historical
King County - DNRP | 39 | 6 | 7 | 8 | 21 | 19 | 11 | 6 | 49.6% | 11.0% | 7.4% | 500 | 83.1 | 10.0 | 7.1 | 8.6 | 8.8 | 8.2 | 10.0 | 8.6 | 8.5 | 5.0 | 8.3 | Details |
| 31 | 08CED44...Site Code: 08CED4479Walsh Lake DiversionLower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2009, Ambi...8/17/2009
Ambient Monitoring
King County - DNRP | 29 | 8 | 5 | 5 | 18 | 21 | 6 | 8 | 70.2% | 8.6% | 3.4% | 500 | 67.4 | 6.2 | 10.0 | 5.7 | 5.0 | 9.4 | 5.0 | 10.0 | 3.1 | 3.8 | 9.2 | Details |
| 32 | 08CED50...Site Code: 08CED5046Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2023, Ambi...8/1/2023
Ambient Monitoring
King County - DNRP | 57 | 6 | 8 | 12 | 26 | 28 | 14 | 11 | 23.9% | 39.0% | 0.3% | 356 | 97.1 | 10.0 | 7.1 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 9.9 | Details |
| 33 | 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 |
| 34 | CED_WE...Site Code: CED_WEBSTER_NOAA_CR_RWebster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2015, Proje...10/6/2015
Project Evaluation
City of Seattle | 45 | 11 | 9 | 7 | 27 | 26 | 5 | 11 | 40.0% | 16.0% | 1.0% | 500 | 82.6 | 6.2 | 10.0 | 10.0 | 7.5 | 10.0 | 3.8 | 10.0 | 7.8 | 7.5 | 9.8 | Details |
| 35 | WAM0660...Site Code: WAM06600-022259Webster Creek - Upper (0341)Lower Cedar River SubbasinCedar River / Lake Washington BasinWRIA 8 - Cedar-Sammamish | 2013, WRIA...8/13/2013
WRIA08_WS_Survey
King County - DNRP | 48 | 10 | 12 | 10 | 32 | 26 | 13 | 14 | 24.1% | 39.7% | 1.5% | 406 | 99.7 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 9.7 | Details |