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Waterbody profile

Official Water Board record · 2026 cycle

Spring Creek (Colusa County)

Waterbody ID (WBID)
CAR5612002020070510165737
County / counties
Colusa
Regional Water Board
Regional Board 5 - Central Valley Region
Waterbody type
River & Stream
Condition category
Category 5 — 303(d) listed, TMDL required
Integrated Report cycle
2026

303(d) listings (5)

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

Pollutant / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
ChlorpyrifosPesticides72999Do Not Delist from 303(d) list (being addressed with action other than TMDL)Original5C Addressed by action other than a TMDL
DiazinonPesticides73265Do Not Delist from 303(d) list (being addressed with action other than TMDL)Original5C Addressed by action other than a TMDL
Oxygen, DissolvedNutrients73315List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
SalinitySALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES73316List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
ToxicityTotal Toxics73377List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow

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
Sep 16, 2026, 10:57 PM UTC
Waterbody ID
CAR5612002020070510165737
CALWNUM
5520.210000, 5561.200002
WBD code
180201040702, 180201040703
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

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

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Watershed
Assessed size
14.22 Miles

Derived facility associations

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

Derived

No industrial stormwater facility is geographically associated with this waterbody.

Facility records are official Industrial General Permit registrations, but the association between a facility and this waterbody is derived geographically (proximity or shared HUC12 subwatershed) and is not a Water Board receiving-water determination. Where a permit carries a Water Board-stated TMDL requirement naming this water, it is listed separately above.