California Stormwater Intelligence

← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Schwan Lake

Waterbody ID (WBID): CAL3041205319981209102156
County / counties: Santa Cruz
Regional Water Board: Regional Board 3 - Central Coast Region
Waterbody type: Lake & Reservoir
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
Escherichia coli (E. coli)Pathogens	83433	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
NutrientsNutrients	72269	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
Total ColiformPathogens	72782	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, 10:56 PM UTC
Waterbody ID: CAL3041205319981209102156
CALWNUM: 3304.120503
WBD code: 180600150305
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.

Loading map…

Watershed: —
Assessed size: 23.13 Acres

Derived facility associations

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

Derived

Acme Coffee Roasting Company

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

American Movers

Marina · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Assured Aggregates Recycling

Marina · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Desertstar Systems LLC

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Soquel · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Fox Thermal Instruments

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Freidson residence

Pacific Grove · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Cruz · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pacific Grove · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Monterey Bay Boatworks Co

Monterey · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Nest On Redwood

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Marina · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Psi Health Solutions Inc

Pacific Grove · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Cruz Harbor Boatyard

Santa Cruz · Notice of Intent · 0.46 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Santa Cruz Nutritionals

Santa Cruz · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Santa Cruz Port District Maintenance Facility and Dredge Yard

Santa Cruz · Notice of Intent · 0.29 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Santa Cruz · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

The Saucy Otter Brewing Co

Pacific Grove · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

TLC & CO Enterprises LLC

Marina · Notice of Non-Applicability

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.