Waterbody profile

Official Water Board record · 2026 cycle

Dominguez Channel Estuary (unlined portion below Vermont Ave)

Waterbody ID (WBID): CAE4051200020050203154519
County / counties: Los Angeles
Regional Water Board: Regional Board 4 - Los Angeles Region
Waterbody type: Estuary
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (16)

Each row is one official listing decision from Appendix A of the Final 2026 California Integrated Report. Source terminology is preserved as published.

Pollutant / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
Benthic Community EffectsOther Cause	72640	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Benzo(a)anthraceneToxic Organics	136167	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Benzo(a)pyreneToxic Organics	136166	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
ChlordanePesticides	136169	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Chlordane (tissue)Pesticides	98920	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Chrysene (C1-C4)Toxic Organics	136170	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
CopperMetals	136171	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
DDT (tissue & sediment)Pesticides	99361	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Dieldrin (tissue)Pesticides	69913	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
Indicator BacteriaPathogens	170884	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
LeadMetals	136173	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
PCBs (Polychlorinated biphenyls)Toxic Organics	136175	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
PhenanthreneToxic Organics	136174	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
PyreneToxic Organics	136176	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
ToxicityTotal Toxics	76061	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—
ZincMetals	136179	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Dominguez, LA/LB Harbors, San Pedro Bay Metals (75 & 78), toxics(73a) and PAHs (74)	—

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: CAE4051200020050203154519
CALWNUM: 4411.010000, 4411.020000, 4411.040000
WBD code: 180701060102, 180701060701
Geometry: Not available in imported GIS services

Download Appendix A source file ↗

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

Official Water Board geometry was not available in the imported GIS services for this waterbody. All regulatory information above comes directly from Appendix A.

Watershed: —
Assessed size: 16.27 Acres

Facilities with an NAL exceedance for a listed pollutant (131)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

24 Auto Salvage and Parts Inc4 19I026610

Copper · most recent exceedance RY 2020 · association: derived watershed association

4 Stars Auto Dismantler Sales4 19I015737

Copper, Zinc · most recent exceedance RY 2023 · association: derived watershed association

ABC Auto Dismantling4 19I028753

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

ABL Space Systems4 19I029981

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Alpert & Alpert Iron & Metal Inc4 19I018491

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

American Aircraft Products4 19I020268

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Anvil Steel Corporation4 19I027651

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Apple Auto Dismantling4 19I011272

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Arktura LLC4 19I029124

Zinc · most recent exceedance RY 2022 · association: derived watershed association

B&H Auto Parts Inc4 19I029814

Zinc · most recent exceedance RY 2024 · association: derived watershed association

Bay Cities Metal Production4 19I015609

Zinc · most recent exceedance RY 2024 · association: derived watershed association

Binder Metal Products Inc4 19I009247

Zinc · most recent exceedance RY 2023 · association: derived watershed association

BNSF Railway Watson4 19I012997

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

California Waste Services LLC4 19I018105

Lead, Zinc · most recent exceedance RY 2018 · association: derived watershed association

Carcamo Trucking Inc4 19I028043

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Carson Refinery4 19I024232

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Cast Rite Corp4 19I006973

Copper, Zinc · most recent exceedance RY 2017 · association: derived watershed association

Catalina Express4 19I023989

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Cavanaugh Machine Works Inc4 19I014325

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Cavanaugh Machine Works Inc4 19I029955

Copper · most recent exceedance RY 2024 · association: derived watershed association

Cemex Construction Materials Pacific LLC Long Beach Terminal4 19I027674

Copper, Zinc · most recent exceedance RY 2018 · association: derived watershed association

Coast Wire Plastic Tech LLC4 19I013697

Copper · most recent exceedance RY 2017 · association: derived watershed association

Connolly Pacific Co4 19I025366

Copper · most recent exceedance RY 2015 · association: derived watershed association

Corridor Recycling4 19I014661

Copper · most recent exceedance RY 2021 · association: derived watershed association

CPI Satcom Antenna Technologies Inc4 19I028743

Copper · most recent exceedance RY 2024 · association: derived watershed association

Crescent Terminal Pier F Berths 204 to 2074 19I025370

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Designed Metal Connections4 19I019473

Zinc · most recent exceedance RY 2025 · association: derived watershed association

DS Express Dismantling4 19I028053

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Ducommun AeroStructures Inc4 19I000528

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Ducommun AeroStructures Inc4 19I000525

Zinc · most recent exceedance RY 2017 · association: derived watershed association

Ed Iskenderian Racing Cams Incorporated4 19I029866

Zinc · most recent exceedance RY 2024 · association: derived watershed association

Electro Tech Machining4 19I028472

Zinc · most recent exceedance RY 2019 · association: derived watershed association

Energy Solutions US LLC4 19I029924

Zinc · most recent exceedance RY 2025 · association: derived watershed association

Everport Terminal Services Inc4 19I026693

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Falcon Refuse Center4 19I022478

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Fast Lane Transportation Inc4 19I028676

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Felix Auto Dismantling4 19I029324

Zinc · most recent exceedance RY 2024 · association: derived watershed association

First Student Inc 124774 19I011377

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Ford Only Inc4 19I022314

Lead, Zinc · most recent exceedance RY 2022 · association: derived watershed association

Gardena Recycling Center4 19I007284

Copper, Zinc · most recent exceedance RY 2019 · association: derived watershed association

Gold Bond Building Products LLC4 19I025505

Zinc · most recent exceedance RY 2023 · association: derived watershed association

Grow More Inc4 19I017633

Copper, Zinc · most recent exceedance RY 2016 · association: derived watershed association

GS II Inc4 19I009176

Zinc · most recent exceedance RY 2024 · association: derived watershed association

HARBOR COGENERATION COMPANY LLC4 19I028110

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Harbor Generating Station4 19I005196

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Honeywell Aerospace4 19I001310

Zinc · most recent exceedance RY 2017 · association: derived watershed association

Howmet Global Fastening Systems Inc4 19I017686

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Hydroform USA4 19I028813

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

ICTF4 19I013944

Copper · most recent exceedance RY 2025 · association: derived watershed association

IDEL AUTO DISMANTLING & BODY WORK4 19I027914

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Industrial Parts Depot4 19I011513

Copper, Zinc · most recent exceedance RY 2018 · association: derived watershed association

Innovative Terminal Services Incorporated4 19I026897

Copper, Zinc · most recent exceedance RY 2018 · association: derived watershed association

Joint Water Pollution Control Plant4 19I007080

Copper · most recent exceedance RY 2016 · association: derived watershed association

Kair Harbor Express4 19I028145

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Kakuichi America Inc4 19I020780

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Kakuichi America Inc Kashiwa4 19I023525

Zinc · most recent exceedance RY 2015 · association: derived watershed association

L3 Harris4 19I012046

Copper · most recent exceedance RY 2020 · association: derived watershed association

Lancast Alumnium Inc4 19I014279

Copper · most recent exceedance RY 2017 · association: derived watershed association

Lisi Aerospace4 19I006003

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

LKQ Pick Your Part Help Yourself4 19I005131

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Long Beach City SERRF Project4 19I025386

Copper, Zinc · most recent exceedance RY 2023 · association: derived watershed association

Long Beach Container Terminal4 19I025585

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Luis Auto Dismantling4 19I029758

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Luis Auto Dismantling4 19I028091

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Main St Auto Dismantlers Inc4 19I022570

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Manson Construction Co4 19I024612

Zinc · most recent exceedance RY 2017 · association: derived watershed association

Martin Container, Inc.4 19I020571

Zinc · most recent exceedance RY 2024 · association: derived watershed association

Maya Steel Fabrications Inc4 19I022633

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Mechanical Metal Finishing4 19I000043

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Metro Division 224 19I011858

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

MID Auto Dismantler & Sales Corp4 19I015333

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Milans Auto Dismantling4 19I018076

Copper, Zinc · most recent exceedance RY 2022 · association: derived watershed association

Mills Iron Works4 19I006665

Zinc · most recent exceedance RY 2023 · association: derived watershed association

Mitsubishi Cement Corporation4 19I025334

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Moog Inc Aircraft Grp Torrance4 19I011092

Copper, Zinc · most recent exceedance RY 2019 · association: derived watershed association

Nalco Co4 19I019087

Zinc · most recent exceedance RY 2025 · association: derived watershed association

Nasco Aircraft Brake4 19I019852

Copper · most recent exceedance RY 2025 · association: derived watershed association

North Star Acquisition Inc4 19I023611

Zinc · most recent exceedance RY 2015 · association: derived watershed association

Northrop Grumman Mil Air Sys4 19I006362

Copper · most recent exceedance RY 2023 · association: derived watershed association

Northrop Grumman S MSC4 19I017862

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Paramount Forge Inc4 19I015482

Zinc · most recent exceedance RY 2016 · association: derived watershed association

Pelican Products Inc4 19I016361

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Phillips 66 Company4 19I013149

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Pier A Berths A88 A964 19I025348

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Plaskolite West Inc4 19I015979

Zinc · most recent exceedance RY 2025 · association: derived watershed association

Plasma Technology Inc4 19I019839

Zinc · most recent exceedance RY 2019 · association: derived watershed association

Quality Forming LLC4 19I023557

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Ramonas Mexican Foods4 19I026449

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

ReadyRefresh Gardena4 19I025627

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Research Metal Industries Incorporated4 19I028559

Zinc · most recent exceedance RY 2019 · association: derived watershed association

S. Letvin & Son4 19I008028

Copper · most recent exceedance RY 2024 · association: derived watershed association

SA Recycling4 19I021105

Copper, Zinc · most recent exceedance RY 2019 · association: derived watershed association

SA Recycling4 19I023158

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

SA Recycling LLC dba SA Recycling of Los Angeles4 19I021125

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Safety Kleen of California Inc4 19NEC012087

Copper, Zinc · most recent exceedance RY 2019 · association: derived watershed association

Sause Bros4 19I025601

Copper, Zinc · most recent exceedance RY 2022 · association: derived watershed association

Savage Services Inc4 19I005229

Zinc · most recent exceedance RY 2025 · association: derived watershed association

Seachrome Corporation4 19I027307

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Smart Recycling Inc4 19I018664

Zinc · most recent exceedance RY 2021 · association: derived watershed association

SMS Transportation Services4 19I022937

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Sonic Industries4 19I016724

Zinc · most recent exceedance RY 2019 · association: derived watershed association

Sonic Plating4 19I006724

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

SOS Metals Inc4 19I018360

Copper, Lead, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Southwest Trails4 19I004954

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

Space Lok Incorporated4 19I026488

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Space Lok Incorporated4 19I026487

Copper, Zinc · most recent exceedance RY 2020 · association: derived watershed association

Spectrum Laboratory Prod Inc4 19I012361

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Stabond Corp4 19I004462

Zinc · most recent exceedance RY 2025 · association: derived watershed association

Standard Metals Recycling4 19I027723

Copper · most recent exceedance RY 2024 · association: derived watershed association

Storm Manufacturing Group4 19I029053

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Superior Metal Finishing4 19I003738

Zinc · most recent exceedance RY 2015 · association: derived watershed association

Tell Steel4 19I028556

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Tonnage Industrial4 19I029804

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Torrance City4 19I005498

Zinc · most recent exceedance RY 2016 · association: derived watershed association

Total Terminals International LLC4 19I025426

Copper, Zinc · most recent exceedance RY 2021 · association: derived watershed association

TraPac LLC4 19I000868

Copper, Zinc · most recent exceedance RY 2023 · association: derived watershed association

TTX Company4 19I025639

Zinc · most recent exceedance RY 2024 · association: derived watershed association

Tubular Specialties Manufacturing4 19I026752

Zinc · most recent exceedance RY 2017 · association: derived watershed association

U S Borax4 19I002660

Zinc · most recent exceedance RY 2025 · association: derived watershed association

UPS Gardena Hub CAGAR4 19I002090

Zinc · most recent exceedance RY 2017 · association: derived watershed association

Valence Surface Technologies dba Coast Plating4 19I026586

Zinc · most recent exceedance RY 2020 · association: derived watershed association

Valmont Coatings Incorporated4 19I015094

Zinc · most recent exceedance RY 2023 · association: derived watershed association

Venture Recycling Group4 19I027544

Zinc · most recent exceedance RY 2022 · association: derived watershed association

Virco Manufacturing Corp4 19I011128

Zinc · most recent exceedance RY 2021 · association: derived watershed association

Wardak Auto Dismantling4 19I028160

Copper, Zinc · most recent exceedance RY 2024 · association: derived watershed association

Washington Ornamental Iron Works4 19I001830

Zinc · most recent exceedance RY 2016 · association: derived watershed association

Waste Resources Recovery4 19I020140

Zinc · most recent exceedance RY 2025 · association: derived watershed association

West Basin Container Terminal4 19I014039

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

Wilmington Auto Salvage4 19I030113

Zinc · most recent exceedance RY 2023 · association: derived watershed association

Wilmington Auto Wrecking4 19I015957

Zinc · most recent exceedance RY 2017 · association: derived watershed association

Yusen Terminals LLC4 19I000231

Copper, Zinc · most recent exceedance RY 2025 · association: derived watershed association

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

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

Derived

24 Auto Salvage and Parts Inc

Wilmington · Notice of Intent

derived_watershed_association