← Impaired waters

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 requiredLow
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 requiredLow

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
Aug 21, 2026, 12:44 AM 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.

Loading map…
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.