Echo Park Lake

Waterbody ID (WBID): CAL4051501020000228155002
County / counties: Los Angeles
Regional Water Board: Regional Board 4 - Los Angeles Region
Waterbody type: Lake & Reservoir
Condition category: Category 4a — TMDL completed
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
AlgaeNutrients	68794	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
ChlordanePesticides	136210	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
DieldrinPesticides	95344	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
EutrophicNutrients	70358	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
OdorNuisance	70042	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
PCBs (Polychlorinated biphenyls)Toxic Organics	136211	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
pHOther Cause	78376	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—
TrashTrash	68102	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Echo, Lincoln, Peck, Calabasas Eutrophications (17) and Trash (16)	—

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: CAL4051501020000228155002
CALWNUM: 4412.1
WBD code: 180701040300
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: 15.17 Acres

Facilities with an NAL exceedance for a listed pollutant (11)

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

Advance Paper Box Co4 19I021010

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

Amazon com Services LLC DLX94 19I028876

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

CA095 West LA US Army Reserve Ctr4 19I013565

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

Hollywood Ready Mix4 19I001540

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

LA Unified Sch Dist Business S4 19I011247

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

Metro Division 54 19I000490

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

Metro Division 74 19I000492

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

Moldex Metric Inc4 19I021497

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

MV Transportation Div 484 19I022025

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

Scarrott Metallurigical Company4 19I024576

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

University of California Los Angeles4 19I005470

pH · most recent exceedance RY 2023 · 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

Active Recycling MRF and Transfer Station

Los Angeles · Notice of Intent

derived_watershed_association