← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Santa Cruz Harbor

Waterbody ID (WBID)
CAB3041205320080617164340
County / counties
Santa Cruz
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 (5)

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
ArsenicMetals84426List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
CopperMetals87135List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
DieldrinPesticides84605List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
Oxygen, DissolvedNutrients85633List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow
PCBs (Polychlorinated biphenyls)Toxic Organics84749List on 303(d) list (TMDL required list)Original5A TMDL still requiredLow

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
CAB3041205320080617164340
CALWNUM
30412053
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

Loading map…
Watershed
Assessed size
22 Acres

Facilities with an NAL exceedance for a listed pollutant (2)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

Santa Cruz Harbor Boatyard3 44I024788

Copper · most recent exceedance RY 2025 · association: derived receiving water

Santa Cruz Port District Maintenance Facility and Dredge Yard3 44I003481

Copper · most recent exceedance RY 2025 · association: derived receiving water

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

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

Derived
Santa Cruz Harbor Boatyard

Santa Cruz · Notice of Intent · 0.06 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Santa Cruz Port District Maintenance Facility and Dredge Yard

Santa Cruz · Notice of Intent · 0.09 km away

derived_receiving_water

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.