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Waterbody profile

Official Water Board record · 2026 cycle

Los Gatos Creek, Lower

Waterbody ID (WBID)
CAR2054005020171207059470
County / counties
Santa Clara
Regional Water Board
Regional Board 2 - San Francisco Bay Region
Waterbody type
River & Stream
Condition category
Category 5 — 303(d) listed, TMDL required
Integrated Report cycle
2026

303(d) listings (3)

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 Cause154247List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
DiazinonPesticides100662List on 303(d) list (being addressed by USEPA approved TMDL)Original5B — Addressed by USEPA-approved TMDLSan Francisco Bay Urban Creeks Diazinon—
Temperature, waterOther Cause143489Do 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, 10:56 PM UTC
Waterbody ID
CAR2054005020171207059470
CALWNUM
2205.400201, 2205.400202, 2205.400500
WBD code
180500030303, 180500030304
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
11.78 Miles

Derived facility associations

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

Derived
British Motorsports Inc

Campbell · Notice of Intent · 0.35 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Campbell Union Sch Dis

Campbell · Notice of Intent · 0.49 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Coterie Cellars Inc

San Jose · No Exposure Certification · 0.76 km away

derived_receiving_water

Derived by California Stormwater Intelligence

FormFactor San Jose

San Jose · No Exposure Certification · 0.21 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

GreenMouse Incorporated

San Jose · No Exposure Certification · 0.73 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Guadalupe Rubbish Disposal INDSTW

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Lexington Quarry

Los Gatos · Notice of Intent · 0.85 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

LuxBus America San Jose

San Jose · Notice of Intent · 0.41 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Nuvera Medical Inc

Los Gatos · No Exposure Certification · 0.15 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Ranch Town Recycling

San Jose · Notice of Intent · 0.30 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Reed Graham Inc

San Jose · Notice of Intent · 0.26 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Regale Winery and Vineyards

Los Gatos · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Roth Wood Products

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

San Jose Unified School Dist

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Signcraft inc

San Jose · No Exposure Certification · 0.97 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Testarossa Winery

Los Gatos · Notice of Intent · 0.57 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Xilinx

San Jose · 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.