Verdugo Wash Reach 1 (LA River to Verdugo Rd.)

Waterbody ID (WBID): CAR4052100019990202133541
County / counties: Los Angeles
Regional Water Board: Regional Board 4 - Los Angeles Region
Waterbody type: River & Stream
Condition category: Category 4a — TMDL completed
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 / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
CopperMetals	75324	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Los Angeles River Metals (13)	—
Indicator BacteriaPathogens	150341	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Los Angeles River Pathogens (15)	—
TrashTrash	75494	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Los Angeles River Trash (12)	—

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: CAR4052100019990202133541
CALWNUM: 4412.21
WBD code: 180701050207, 180701050210
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: 1.88 Miles

Facilities with an NAL exceedance for a listed pollutant (7)

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

Ambrit Industries4 19I006997

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

City of Glendale Grayson Power Plant4 19I001606

Copper · most recent exceedance RY 2022 · association: derived receiving water

City of Glendale Recycling Center4 19I019666

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

LA Cnty Sanitation Dist Scholl4 19I006193

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

Metro Division 34 19I000488

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

South Coast Recycling4 19I004889

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

Sun Valley Extrusion Co4 19I025958

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

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

5146 San Fernando

Glendale · Notice of Non-Applicability · 0.86 km away

derived_nearby_in_watershed