California Stormwater Intelligence
← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

South San Jose Creek (Los Angeles County)

Waterbody ID (WBID)
CAR4055100020110328104701
County / counties
Los Angeles
Regional Water Board
Regional Board 4 - Los Angeles Region
Waterbody type
River & Stream
Condition category
Category 5 — 303(d) listed, TMDL required
Integrated Report cycle
2026

303(d) listings (1)

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
ToxicityTotal Toxics96993List on 303(d) list (TMDL required list)Original5A — 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
CAR4055100020110328104701
CALWNUM
4405.200000, 4405.510000
WBD code
180701060501
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
3.33 Miles

Derived facility associations

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

Derived
Able Trader Corporation

Walnut · No Exposure Certification · 0.98 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Acratech Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Advance Aluminum Awning Co

Diamond Bar · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Advanced Purification Engineering Corporation

City Of Industry · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

American Metal Manufacturing Resource Inc

Pomona · No Exposure Certification · 0.69 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Amplethink

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Analytical Industries Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Astrophysics Inc

Industry · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Baughn Engineering

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

BlueDot Safes

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Bomar Machine

Diamond Bar · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Bragel International Inc

Pomona · No Exposure Certification · 0.39 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

BRENTWOOD MFG CO

Pomona · No Exposure Certification · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Budget Auto Wrecking

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

California Tool and Cutter

Pomona · No Exposure Certification · 0.23 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Casa Herrera Inc

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Coahuila Foods Inc

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Common Corners Brewing

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Comp Turbo Technology Incorporated

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Consolidated Laundry Machinery

Pomona · Notice of Intent · 0.92 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Continental Precision Stamping Inc

Pomona · No Exposure Certification · 0.34 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Continental Precision Stamping Inc

Pomona · No Exposure Certification · 0.36 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Copp Industrial Manufacturing Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Crush Master Grinding Corp

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

CSR Industries Corp

Walnut · No Exposure Certification · 0.32 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Delphi Control Systems Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Dow Hydraulic Systems

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

DP Machining Inc

La Verne · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Electrocube

Pomona · No Exposure Certification · 0.25 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Element Surface Technology

Pomona · No Exposure Certification · 0.68 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Element Surface Techonology

Pomona · No Exposure Certification · 0.68 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Epic Printing Ink Corporation

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Equipment Design and Manufacturing Inc

Pomona · No Exposure Certification · 0.25 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Essential Pharmaceutical Corporation

Pomona · No Exposure Certification · 0.65 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Fairway Injection Molds

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

FedEx Ground ZIDS

Industry · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Flair Electronics

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Flavorsandcolor com

Diamond Bar · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Frank Smith Masonry

Pomona · Notice of Intent · 0.04 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Futura Manufacturing

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

GoldenHome Cabinetry West LLC

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

GoldenHome Cabinetry West LLC

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

GoldenWest Lubricants Inc

Pomona · No Exposure Certification · 0.78 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

GOULD BASS CO

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Interstate 10 Batch Plant

West Covina · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

J D Auto Wrecking

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

J&J Metal Fabrication

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

K1packaging

Pomona · No Exposure Certification · 0.37 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

KC Pharmaceuticals

Pomona · No Exposure Certification · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

KC SCOTT MANUFACTURING INC

Pomona · No Exposure Certification · 0.53 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Kerr Corporation

Pomona · No Exposure Certification · 0.42 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

KKW Trucking

Pomona · Notice of Intent · 0.18 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Laras Meat Inc

Pomona · No Exposure Certification · 0.49 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Lift It Manufacturing Co Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Los Pericos Food Products LLC

Pomona · No Exposure Certification · 0.79 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Med-Pharmex, Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

MFG Precision inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Mike Brown Grandstands

Pomona · Notice of Intent · 0.16 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Mil Spec Magnetics Inc

Pomona · No Exposure Certification · 0.28 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

National Distribution Centers LLC

City Of Industry · No Exposure Certification · 0.72 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Naturas Foods of California Inc

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Novipax inc

La Verne · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Ormco Corp

Pomona · No Exposure Certification · 0.36 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Performance Engineered Products

Pomona · No Exposure Certification · 0.23 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Phenix Enterprises Inc

Pomona · Notice of Intent · 0.98 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pomona Water Reclamation Plant

Pomona · Notice of Intent · 0.05 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Port Logistics Group

Industry · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Port Logistics Group

Industry · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Precision Metal Processing Inc

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Precision Powdered Metal Parts

Pomona · Notice of Intent · 0.31 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Prizm Imaging INC

Pomona · No Exposure Certification · 0.66 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Proterra Incorporated

Industry · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

PSC Environmental Servies of Pomona LP

Pomona · Notice of Intent · 0.19 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

derived_watershed_association

Derived by California Stormwater Intelligence

R J Machine Products

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Robertsons Pomona Plant

Pomona · Notice of Intent · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Roc Aire Corporation

Pomona · No Exposure Certification · 0.05 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

RW Materials LLC

Pomona · Notice of Intent · 0.42 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Schwien Engineering Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Scientific Pharmaceuticals Inc

Pomona · No Exposure Certification · 0.14 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Sea Shield Marine Products

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Soderberg Manufacturing Company Inc

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Solo Clip Inc dba Clip House

Pomona · No Exposure Certification · 0.57 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Southcoast Cabinet Inc

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

St. George Logistics

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Superior Duct Fabrication

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Sysco Food Services California Inc

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

derived_watershed_association

Derived by California Stormwater Intelligence

The Martin Brower Company LLC

City Of Industry · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

THE NEIGHBORHOOD SIGN STORE

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

The Pour House Brewery

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Tolman Tool Manufacturing Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Torn & Glasser

Pomona · Notice of Intent · 0.79 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Trademark Hoist Inc

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Tri Cnty Auto Salvage

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Unical Aviation

City Of Industry · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

United Metal Spinning & Machining

Pomona · No Exposure Certification · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

United Rotary Brush

Pomona · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

USPS Pomona VMF

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

VEFO Inc

Pomona · Notice of Intent · 0.22 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Vivid Acrylics

La Verne · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Walnut Ready Mix

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Walnut Valley Unified Sch Dist

Walnut · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Williams Sign Co

Pomona · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Winsome Enterprises Inc

Walnut · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Worldwide Recovery Systems Inc

Pomona · Notice of Intent · 0.16 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Worthington Industries

Pomona · Notice of Intent · 0.21 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

WR Meadows of Southern California

Pomona · Notice of Intent · 0.59 km away

derived_nearby_in_watershed

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.