California Stormwater Intelligence
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Waterbody profile

Official Water Board record · 2026 cycle

Palmdale Lake

Waterbody ID (WBID)
CAL6265000020100103210021
County / counties
Los Angeles
Regional Water Board
Regional Board 6 - Lahontan Region
Waterbody type
Lake & Reservoir
Condition category
Category 5 — 303(d) listed, TMDL required
Integrated Report cycle
2026

303(d) listings (2)

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

Pollutant / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
DieldrinPesticides79002List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PCBs (Polychlorinated biphenyls)Toxic Organics170586List on 303(d) list (TMDL required list)Revised5A — 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
Sep 16, 2026, 10:57 PM UTC
Waterbody ID
CAL6265000020100103210021
CALWNUM
9626.5
WBD code
180902061501
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
226.2 Acres

Derived facility associations

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

Derived
Alzubaidy

Palmdale · Notice of Non-Applicability · 0.49 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Eastside Mail n Biz

Palmdale · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Giosand Environmental Transportation Inc

Palmdale · Notice of Non-Applicability · 0.37 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Granite Construction Littlerock

Littlerock · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Hi Grade Materials

Littlerock · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Kinkisharyo LLC

Palmdale · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Nova Storage Palmdale LP

Palmdale · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

PRINTING ETC

Palmdale · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

SecurCare Self Storage 0316

Palmdale · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Secure Mini Storage

Palmdale · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Tri County

Palmdale · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Tri County Transportation

Palmdale · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

UPS Palmdale CAPLM

Palmdale · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Facility records are official Industrial General Permit registrations, but the association between a facility and this waterbody is derived geographically (proximity or shared HUC12 subwatershed) and is not a Water Board receiving-water determination. Where a permit carries a Water Board-stated TMDL requirement naming this water, it is listed separately above.