Russian River HU, Middle Russian River HA, Mark West HSA, mainstem Mark West Creek downstream of the confluence with the Laguna de Santa Rosa

Waterbody ID (WBID): CAR1142302020131101052894
County / counties: Sonoma
Regional Water Board: Regional Board 1 - North Coast Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (8)

Each row is one official listing decision from Appendix A of the Final 2026 California Integrated Report. Source terminology is preserved as published.

Pollutant / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
AluminumMetals	157837	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ManganeseMetals	157819	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Oxygen, DissolvedNutrients	156779	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Medium
PhosphorusNutrients	169070	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Medium
SedimentSediment	169130	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Medium
Sedimentation/SiltationSediment	79571	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
Specific ConductivitySALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	163060	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Temperature, waterOther Cause	156781	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Medium

Source & provenance

Agency: California State Water Resources Control Board
Report: Final 2026 California Integrated Report
Dataset: Appendix A — 2026 303(d) List of Impaired Waters
Imported: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR1142302020131101052894
CALWNUM: 1114.110102, 1114.230201
WBD code: 180101100706, 180101100902
Geometry: Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

View official Water Board fact sheet ↗Download Appendix A source file ↗

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

Loading map…

Watershed: —
Assessed size: 5.29 Miles

Facilities with an NAL exceedance for a listed pollutant (1)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

Pick-n-pull Windsor #41 49I011902

Aluminum · most recent exceedance RY 2025 · association: derived watershed association

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

Industrial stormwater facilities geographically associated with this waterbody. These are derived spatial associations, not Water Board findings.

Derived

Acorn Alegria Winery

Healdsburg · Notice of Intent

derived_watershed_association