California Stormwater Intelligence
← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Pit River (from confluence of N and S forks to Shasta Lake)

Waterbody ID (WBID)
CAR5266108019990126150509
County / counties
Lassen, Modoc, Shasta
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 (6)

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
AluminumMetals153185Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
IronMetals134882Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
NutrientsNutrients71868List on 303(d) list (TMDL required list)Original5A — TMDL still required—Low
Organic Enrichment/Low Dissolved OxygenNutrients86203Do Not Delist from 303(d) list (TMDL required list)Original5A — TMDL still required—Low
Oxygen, DissolvedNutrients146603Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics146609List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low

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
CAR5266108019990126150509
CALWNUM
5506.100000, 5506.200603, 5506.200604, 5526.140101, 5526.140201, 5526.140202, 5526.140301, 5526.140302, 5526.150102, 5526.150201, (Total Count: 42)
WBD code
180200020901, 180200020902, 180200021203, 180200021204, 180200021205, 180200021206, 180200021902, 180200021903, 180200030801, 180200030802, (Total Count: 18)
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
181.64 Miles

Derived facility associations

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

Derived
Alturas Disposal

Alturas · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Blue Water Recycling corp

Alturas · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Shasta Cnty

Fall River Mills · No Exposure Certification · 0.45 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Shaw Pit

Lookout · Notice of Intent · 0.25 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

UPS Alturas CAATR

Alturas · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

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.