Pacific Ocean at Estero Bay

Waterbody ID (WBID): CAO3102300020200702053284
County / counties: San Luis Obispo
Regional Water Board: Regional Board 3 - Central Coast Region
Waterbody type: Ocean
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
DDT (Dichlorodiphenyltrichloroethane)Pesticides	129821	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
MercuryMetals	131333	List on 303(d) list (TMDL required list)	Revised	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, 10:56 PM UTC
Waterbody ID: CAO3102300020200702053284
CALWNUM: 3310.140201, 3310.150000, 3310.160000, 3310.170002, 3310.180000, 3310.210000, 3310.220002, 3310.230001, 3310.230002, 3310.250001, (Total Count: 12)
WBD code: 180600060409, 180600060410, 180600060411, 180600060412, 180600060413, 180600060504
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: 26858.64 Acres

Derived facility associations

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

Derived

City of Morro Bay Cayucos Sanitary District Wastewater Plant

Morro Bay · Notice of Intent · 0.37 km away

derived_nearby_in_watershed