Seal Beach (Orange County)

Waterbody ID (WBID): CAX8011100019991013160405
County / counties: Orange
Regional Water Board: Regional Board 8 - Santa Ana Region
Waterbody type: Coastal & Bay Shoreline
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 / stressor	Decision ID	Final listing decision	Decision status	TMDL requirement status	TMDL project	TMDL priority
Indicator BacteriaPathogens	149177	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PCBs (Polychlorinated biphenyls)Toxic Organics	69741	List on 303(d) list (TMDL required list)	Original	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: Sep 16, 2026, 10:57 PM UTC
Waterbody ID: CAX8011100019991013160405
CALWNUM: 4405.120000, 4405.120000, 4405.150000, 4405.150000, 4412.100000, 4801.110000, 4801.110000, 4801.110000
WBD code: 180701060703, 180702010002
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: 1.59 Miles

Derived facility associations

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

Derived

American Marine Corp

Terminal Island · Notice of Intent

derived_watershed_association