California Stormwater Intelligence
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Waterbody profile

Official Water Board record · 2026 cycle

Bear Creek (from Bear Valley to San Joaquin River, Mariposa and Merced Counties)

Waterbody ID (WBID)
CAR5380001020080709164456
County / counties
Mariposa, Merced
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 (4)

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
BifenthrinPesticides159401Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens127101Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PyrethroidsPesticides159400Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics159398Do 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
CAR5380001020080709164456
CALWNUM
53800010
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.

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Watershed
—
Assessed size
74.88 Miles

Derived facility associations

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

Derived
A & S Metals

Merced · Notice of Intent · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Atwater Regional Wastewater Treatment Plant

Atwater · Notice of Intent · 0.80 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Greif Packaging LLC

Merced · Notice of Intent · 0.78 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Jain Farm Fresh Foods Inc

Merced · Notice of Non-Applicability · 0.78 km away

derived_receiving_water

Derived by California Stormwater Intelligence

MERCED UNION HIGH SCHOOL DISTRICT

Merced · Notice of Intent · 0.79 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Norwesco LLC

Merced · Notice of Intent · 0.68 km away

derived_receiving_water

Derived by California Stormwater Intelligence

QG Printing II LLC

Merced · Notice of Intent · 0.88 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Safeway Inc Merced Grocery Plant

Merced · Notice of Intent · 0.37 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Scholle IPN

Merced · Notice of Intent · 0.85 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.