Morro Bay

Waterbody ID (WBID): CAB3102201219980827141506
County / counties: San Luis Obispo
Regional Water Board: Regional Board 3 - Central Coast Region
Waterbody type: Bay & Harbor
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (3)

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
ArsenicMetals	105692	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Oxygen, DissolvedNutrients	105712	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Sedimentation/SiltationSediment	68652	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Morro Bay Sediment	—

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: CAB3102201219980827141506
CALWNUM: 3310.210000, 3310.220002, 3310.230002, 3310.270000
WBD code: 180600060501, 180600060502, 180600060503
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: 2970.55 Acres

Derived facility associations

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

Derived

3 Ink Inc

Morro Bay · No Exposure Certification · 0.57 km away

derived_nearby_in_watershed