← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Sweetwater River, Middle (between Sweetwater and Loveland Reservoirs)

Waterbody ID (WBID)
CAR9092100020200518051319
County / counties
San Diego
Regional Water Board
Regional Board 9 - San Diego 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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
Benthic Community EffectsOther Cause153003Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens105499Do Not Delist from 303(d) list (TMDL required list)Original5A — TMDL still required—Low
NitrogenNutrients127547List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PhosphorusNutrients115396List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
SeleniumMetals105525Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Total Dissolved SolidsSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES115397List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics115398List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
TurbiditySediment115399List 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
CAR9092100020200518051319
CALWNUM
4909.210000, 4909.230000
WBD code
180703040901, 180703040902
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
17.45 Miles

Derived facility associations

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

Derived
Advantage Ambulance Inc

Spring Valley · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

CubeSmart 155

Spring Valley · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Euramco Safety Inc

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

FormAlloy Technologies Inc

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Golden State Metal Finishing

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Green Flash Machine LLC

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Hands on Concepts

San Diego · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

J&M Keystone

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Jamacha Landfill

Spring Valley · Notice of Intent · 0.09 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Jamacha Point Self Storage LLC

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Jamacha Rock Quarry

El Cajon · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Legend Smelting And Recycling Inc

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

LSR Spring Valley

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Marjan Stone

Spring Valley · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

MIKES METAL WORKS INC

Jamul · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Otay Water Ralph W Chapman Wat

Spring Valley · Notice of Intent · 0.09 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Robertsons El Cajon Rock Plan

El Cajon · Notice of Intent · 0.24 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

S&S Carbide Tool Inc

Spring Valley · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

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.