← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Guadalupe River

Waterbody ID (WBID)
CAR2054005019980928160437
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 (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 Cause154157List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
BifenthrinPesticides142015List on 303(d) list (being addressed by USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay Urban Creeks Diazinon—
ChlordanePesticides141983List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
DiazinonPesticides141990Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay Urban Creeks Diazinon—
MercuryMetals145439Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLGuadalupe River Watershed Mercury—
PyrethroidsPesticides142010List on 303(d) list (being addressed by USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay Urban Creeks Diazinon—
ToxicityTotal Toxics142007List on 303(d) list (being addressed by USEPA approved TMDL)Revised5B — Addressed by USEPA-approved TMDLSan Francisco Bay Urban Creeks Diazinon—
TrashTrash87599Do Not Delist from 303(d) list (being addressed with action other than TMDL)Original5C — Addressed by action other than a TMDL——

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
CAR2054005019980928160437
CALWNUM
2205.300800, 2205.400500, 2205.500400
WBD code
180500030301, 180500030302, 180500030303, 180500030304, 180500041001
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
19.33 Miles

Derived facility associations

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

Derived
1999 Stone LLC

San Jose · Notice of Intent · 0.62 km away

derived_receiving_water

Derived by California Stormwater Intelligence

6341 San Ignacio

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

A German Auto Wrecking Inc

San Jose · Notice of Intent · 0.65 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ABC CARS

San Jose · No Exposure Certification · 0.76 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Acrylonics LLC

San Jose · No Exposure Certification · 0.87 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Advanced Surface Finishing Inc

San Jose · Notice of Intent · 0.90 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Advantest America Inc

San Jose · No Exposure Certification · 0.72 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Aheadtek

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

All Cities Former Landfill

Hayward · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

All Clean Hazardous Waste Removal

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Amazon com Services LLC DXC8

San Jose · Notice of Intent · 0.96 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Amex Plating Inc

Santa Clara · Notice of Intent · 0.59 km away

derived_receiving_water

Derived by California Stormwater Intelligence

APCT INC

Santa Clara · Notice of Intent · 0.47 km away

derived_receiving_water

Derived by California Stormwater Intelligence

ASML

San Jose · No Exposure Certification · 0.43 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Asphalt Shingle Recyclers

Oakland · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Averatek Corp

Santa Clara · Notice of Intent · 0.64 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Bee Green Recycling and Supply LLC

Oakland · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Biomerics NLE

Santa Clara · No Exposure Certification · 0.24 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Blue Line Transfer Station

South San Francisco · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Boat Yard at Grand Marina

Alameda · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

British Motorsports Inc

Campbell · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Bruker Inc

San Jose · No Exposure Certification · 0.92 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Bruker Scientific

San Jose · No Exposure Certification · 0.75 km away

derived_receiving_water

Derived by California Stormwater Intelligence

C F Gagliasso Tr

Santa Clara · Notice of Intent · 0.22 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cargill Inc Redwood City

Redwood City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CEMOF

San Jose · Notice of Intent · 0.67 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Central Concrete

San Jose · Notice of Intent · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Central Concrete Supply

Redwood City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Central Concrete Supply

San Jose · Notice of Intent · 0.92 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Central Concrete Supply

San Jose · Notice of Intent · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cirexx International

Santa Clara · Notice of Intent · 0.92 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cisco Systems Inc Site 2 1

San Jose · No Exposure Certification · 0.41 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Cisco Systems Inc Site 3

San Jose · No Exposure Certification · 0.68 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Coast Crane Co

San Leandro · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Coterie Cellars Inc

San Jose · No Exposure Certification · 0.67 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Crystallume Corp

Santa Clara · No Exposure Certification · 0.55 km away

derived_receiving_water

Derived by California Stormwater Intelligence

CSL Operating LLC

Santa Clara · Notice of Intent · 0.71 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Darko Precision Inc

Santa Clara · No Exposure Certification · 0.53 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Data Physics Corporation

Santa Clara · No Exposure Certification · 0.22 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Enablence USA Components INC

Fremont · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

EPZ INC

Santa Clara · No Exposure Certification · 0.31 km away

derived_receiving_water

Derived by California Stormwater Intelligence

FedEx Freight Hayward

Hayward · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

FedEx Freight Santa Clara

Santa Clara · Notice of Intent · 0.15 km away

derived_receiving_water

Derived by California Stormwater Intelligence

FormFactor San Jose

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Garratt Callahan Company

Burlingame · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Gridtential Energy Inc

Santa Clara · No Exposure Certification · 1.00 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Guadalupe Division

San Jose · Notice of Intent · 0.39 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

Hallcon DBA Loop Transportation

San Jose · Notice of Intent · 0.99 km away

derived_receiving_water

Derived by California Stormwater Intelligence

IMG INTA LLC

Santa Clara · No Exposure Certification · 0.43 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Ingenium Group LLC

Santa Clara · No Exposure Certification · 0.46 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Jabil Inc

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Kuprion Inc

San Jose · No Exposure Certification · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Lam Research Corporation Fremont Campus

Fremont · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Lexington Quarry

Los Gatos · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Los Esteros Critical Energy Facility LLC

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Lumentum Operations LLC

San Jose · Notice of Intent · 0.91 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Lumileds LLC

San Jose · Notice of Intent · 0.21 km away

derived_receiving_water

Derived by California Stormwater Intelligence

LuxBus America San Jose

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Mattson Technology

Fremont · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Maxar Space LLC

San Jose · Notice of Intent · 0.82 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Maxeon Americas Inc

San Jose · Notice of Intent · 0.47 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Mineta San Jose International Airport

San Jose · Notice of Intent · 0.07 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Molecular Devices

San Jose · No Exposure Certification · 0.87 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Momentus Inc

San Jose · No Exposure Certification · 0.61 km away

derived_receiving_water

Derived by California Stormwater Intelligence

NeoPhotonics Corporation

San Jose · Notice of Intent · 0.89 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Northrop Grumman Systems

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Nuvera Medical Inc

Los Gatos · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Oak Grove Sch District

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Paratransit Maitenance

Brisbane · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Paratransit Operations

Brisbane · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

PEAK TECHNOLOGY ENTERPRISES INC

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Pier 92 Amador Ready Mix

San Francisco · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Prime Now LLC USF1

Santa Clara · Notice of Intent · 0.88 km away

derived_receiving_water

Derived by California Stormwater Intelligence

PROCEPT BioRobotics

Redwood City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Quality Plating Co

San Jose · No Exposure Certification · 0.58 km away

derived_receiving_water

Derived by California Stormwater Intelligence

QuantumScape

San Jose · No Exposure Certification · 0.45 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Ranch Town Recycling

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

RCRefinishing

San Jose · No Exposure Certification · 0.98 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Rebar Spacer Block Co Inc

Alviso · Notice of Intent · 0.84 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Recology San Bruno

Burlingame · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

ReCor Medical

Palo Alto · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Reed Graham Inc

San Jose · Notice of Intent

derived_watershed_association

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 · 0.51 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Royal Coach Tours

San Jose · Notice of Intent · 0.87 km away

derived_receiving_water

Derived by California Stormwater Intelligence

San Jose City Martin Park Land

San Jose · No Exposure Certification · 0.55 km away

derived_receiving_water

Derived by California Stormwater Intelligence

San Jose Plant

San Jose · Notice of Intent · 0.96 km away

derived_receiving_water

Derived by California Stormwater Intelligence

San Jose Ready Mix

San Jose · Notice of Intent · 0.74 km away

derived_receiving_water

Derived by California Stormwater Intelligence

San Jose Unified School Dist

San Jose · Notice of Intent · 0.69 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Sanmina HQ

San Jose · No Exposure Certification · 0.67 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Santa Clara County Almaden Quicksil

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Clara Powder Coating Inc

Santa Clara · Notice of Intent · 0.90 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Silicon Light Machines

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

SJ Valley Plating

Santa Clara · Notice of Intent · 0.52 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Starlight Marine Services

Alameda · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

SunPower Corporation

San Jose · Notice of Intent · 0.36 km away

derived_receiving_water

Derived by California Stormwater Intelligence

SVXR Inc

San Jose · No Exposure Certification · 0.94 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Swissport Fueling Inc

San Jose · Notice of Intent · 0.11 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Testarossa Winery

Los Gatos · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

THAT Corporation

Milpitas · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Thin Film Electronics

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Tournesol Siteworks LLC

Union City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

TTM Technologies North America LLC

San Jose · No Exposure Certification · 0.55 km away

derived_receiving_water

Derived by California Stormwater Intelligence

TTM Technologies North America LLC

San Jose · No Exposure Certification · 0.53 km away

derived_receiving_water

Derived by California Stormwater Intelligence

US Coast Guard Base Alameda

Alameda · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Vanderbend Manufacturing Inc

San Jose · Notice of Intent · 0.14 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Vanderbend Manufacturing Inc

Santa Clara · No Exposure Certification · 0.18 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Veeco Process Equipment Inc

San Jose · No Exposure Certification · 0.97 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Verb Surgical Incorporate

Santa Clara · No Exposure Certification · 0.98 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Western Digital Technologies Inc

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Westfab Manufacturing Inc

Santa Clara · No Exposure Certification · 0.93 km away

derived_receiving_water

Derived by California Stormwater Intelligence

WL Gore and Associates Silicon Valley

Santa Clara · No Exposure Certification · 0.99 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Xilinx

San Jose · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Zanker Material Processing Facility

San Jose · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Zero Waste Energy Development Company

San Jose · Notice of Intent

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.