← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

American River, Lower (Nimbus Dam to confluence with Sacramento River)

Waterbody ID (WBID)
CAR5192100019980813142021
County / counties
Sacramento
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 (11)

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
Benzo[b]fluorantheneToxic Organics146125List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
BifenthrinPesticides146227Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Chrysene (C1-C4)Toxic Organics146136List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
CyfluthrinPesticides146234List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Cyhalothrin, LambdaPesticides146236List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens148725Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
MercuryMetals153028Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PCBs (Polychlorinated biphenyls)Toxic Organics146199Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PyrethroidsPesticides146215Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Temperature, waterOther Cause134696Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics146207Do Not Delist from 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
CAR5192100019980813142021
CALWNUM
51921000
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
23.04 Miles

Derived facility associations

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

Derived
ALL DODGE TRUCK

Rancho Cordova · Notice of Intent · 0.34 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Bell Marine

Sacramento · Notice of Intent · 0.46 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CA Sacramento Self Storage LLC

Sacramento · Notice of Non-Applicability · 0.96 km away

derived_receiving_water

Derived by California Stormwater Intelligence

California Tile & Granite Corp

Sacramento · Notice of Intent · 0.46 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CUBESMART 225

Sacramento · Notice of Non-Applicability · 0.18 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Ebara Technologies

Sacramento · No Exposure Certification · 0.66 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Elite Optical

Sacramento · No Exposure Certification · 0.44 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Exact Alloys

Sacramento · No Exposure Certification · 0.77 km away

derived_receiving_water

Derived by California Stormwater Intelligence

FedEx SMFRT

Sacramento · Notice of Intent · 0.47 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Heart of Gold Medical Transport Inc

Sacramento · Notice of Non-Applicability · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

i5LED LLC

Sacramento · Notice of Non-Applicability · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

LiCAP Technologies Inc

Sacramento · No Exposure Certification · 0.85 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Marcum's Marine Services LLC

Rancho Cordova · Notice of Non-Applicability · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Martin Sprocket Gear

Sacramento · Notice of Intent · 0.35 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Matheson Postal Servies Inc

Sacramento · Notice of Intent · 0.68 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Meticulous Manufacturing Inc

Sacramento · No Exposure Certification · 0.98 km away

derived_receiving_water

Derived by California Stormwater Intelligence

RIVER CITY MILLWORK INC

Sacramento · Notice of Intent · 0.69 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ROWLETT MANUFACTURING & DESIGN INC

Sacramento · No Exposure Certification · 0.65 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Rudys Metals

Sacramento · Notice of Intent · 0.78 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Sac City Landfill

Sacramento · Notice of Intent · 0.46 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SDS AGENCY INC

Sacramento · Notice of Non-Applicability · 0.54 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Sentry Hazel & 50

Rancho Cordova · No Exposure Certification · 0.76 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SFPP LP Bradshaw Terminal

Sacramento · Notice of Intent · 0.72 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Sierra Office Systems and Products Inc

Sacramento · No Exposure Certification · 0.56 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SMM Sacramento

Sacramento · Notice of Intent · 0.99 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Subway Truck Parts Inc

Sacramento · Notice of Intent · 0.97 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Time Printing Solutions Provider

Sacramento · No Exposure Certification · 1.00 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Yellow Cab Co of Sacramento

Sacramento · Notice of Intent · 0.81 km away

derived_receiving_water

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.