Waterbody profile

Official Water Board record · 2026 cycle

Coyote Creek

Waterbody ID (WBID): CAR4051501019980917123914
County / counties: Los Angeles, Orange
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 (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 / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
AluminumMetals	153901	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlorineToxic Inorganics	132541	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Copper, DissolvedMetals	68259	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	San Gabriel River Metals (39)	—
Indicator BacteriaPathogens	150537	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	San Gabriel River Coliform (45)	—
IronMetals	132554	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
MalathionPesticides	132557	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
pHOther Cause	132566	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ToxicityTotal Toxics	132573	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — 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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR4051501019980917123914
CALWNUM: 4405.150000, 4845.150000, 4845.610000, 4845.620000
WBD code: 180701060603, 180701060606
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: 14.27 Miles

Facilities with an NAL exceedance for a listed pollutant (27)

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

Alloy Die Casting Co8 30I013785

Aluminum · most recent exceedance RY 2021 · association: derived receiving water

Amazon com Services Inc LAX58 30I027603

pH · most recent exceedance RY 2018 · association: derived nearby in watershed

Bottling Group LLC8 30I018699

pH · most recent exceedance RY 2018 · association: derived nearby in watershed

Brenntag Pacific Inc4 19I021833

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

Cavotec USA8 30I024632

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

CVS Pharmacy La Habra Distribution8 30I020388

pH · most recent exceedance RY 2025 · association: derived nearby in watershed

Damco Distribution Services Inc4 19I029159

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

Electronic Precision Specialties Inc8 30I026632

Aluminum, Iron, pH · most recent exceedance RY 2022 · association: derived watershed association

Ganahl Lumber8 30I024055

pH · most recent exceedance RY 2015 · association: derived nearby in watershed

HB Fuller Inc4 19I029836

Aluminum · most recent exceedance RY 2024 · association: derived nearby in watershed

Hyatt Die Casting8 30I000211

Aluminum, pH · most recent exceedance RY 2025 · association: derived watershed association

JC Grinding Incorporated4 19I027877

Iron, pH · most recent exceedance RY 2025 · association: derived watershed association

JM Huber Micropowders Inc4 19I029685

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

Key Air Conditioning Contractors Inc4 19I020952

Aluminum, Iron · most recent exceedance RY 2022 · association: derived watershed association

La Habra Bakery8 30I001333

pH · most recent exceedance RY 2022 · association: derived nearby in watershed

Long Beach Water Reclamation Plant4 19I010348

Iron, pH · most recent exceedance RY 2025 · association: derived nearby in watershed

Los Alamitos Unified School District8 30I004054

pH · most recent exceedance RY 2022 · association: derived nearby in watershed

Miller Castings Inc4 19I022672

Aluminum, Iron · most recent exceedance RY 2022 · association: derived watershed association

National Beverage Corp4 19I004634

pH · most recent exceedance RY 2023 · association: derived nearby in watershed

Pioneer Auto Wrecking4 19I018347

Aluminum, Iron · most recent exceedance RY 2019 · association: derived watershed association

Primatex Industries8 30I019737

pH · most recent exceedance RY 2015 · association: derived nearby in watershed

Puente Hills Materials Recovery Facility4 19I019265

Aluminum, Iron, pH · most recent exceedance RY 2025 · association: derived watershed association

Rebar Engineering Inc4 19I020174

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

SPX Cooling Tech LLC8 30I000465

Iron, pH · most recent exceedance RY 2021 · association: derived watershed association

T Hasegawa4 19I028432

pH · most recent exceedance RY 2024 · association: derived nearby in watershed

Unicorn Metals8 30MR000035

Aluminum, Iron · most recent exceedance RY 2016 · association: derived nearby in watershed

Van Law Food Products Inc8 30I025258

pH · most recent exceedance RY 2019 · 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

1355 Imperial

Brea · No Exposure Certification

derived_watershed_association