Machado Lake (Harbor Park Lake)

Waterbody ID (WBID): CAL4051200020000229084938
County / counties: Los Angeles
Regional Water Board: Regional Board 4 - Los Angeles Region
Waterbody type: Lake & Reservoir
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (12)

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	68951	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Nitrogens (76)	—
AmmoniaNutrients	76345	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Nitrogens (76)	—
ChemAPesticides	69771	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Toxics (73b)	—
ChlordanePesticides	136191	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Machado Lake Toxics (73b)	—
Chlordane (tissue)Pesticides	68185	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Toxics (73b)	—
Chlorophyll-aNutrients	136192	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Machado Lake Nitrogens (76)	—
DDT (tissue)Pesticides	68754	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Toxics (73b)	—
Dieldrin (tissue)Pesticides	68843	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Toxics (73b)	—
EutrophicNutrients	76346	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Nitrogens (76)	—
OdorNuisance	75643	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Nitrogens (76)	—
PCBs (Polychlorinated biphenyls) (tissue)Toxic Organics	69844	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
TrashTrash	70789	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Machado Lake Trash (81)	—

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: CAL4051200020000229084938
CALWNUM: 4411.02
WBD code: 180701060701
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: 48.26 Acres

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