Struve Slough

Waterbody ID (WBID): CAR3051003020080603125227
County / counties: Santa Cruz
Regional Water Board: Regional Board 3 - Central Coast Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (7)

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
Chlorophyll-aNutrients	113090	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	High
Escherichia coli (E. coli)Pathogens	125886	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Fecal ColiformPathogens	131023	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Watsonville Slough Pathogen	—
Oxygen, DissolvedNutrients	113097	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Pajaro River Watershed Nutrients	—
pHOther Cause	113098	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ToxicityTotal Toxics	90862	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
TurbiditySediment	113099	Do Not Delist from 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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR3051003020080603125227
CALWNUM: 3305.100301
WBD code: 180600020804
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: 2.78 Miles

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

S Martinelli Co3 44I011445

pH · most recent exceedance RY 2018 · association: derived watershed association

Santa Cruz Cnty Buena Vista La3 44I001258

pH · most recent exceedance RY 2015 · association: derived watershed association

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

A and S Metals

Watsonville · Notice of Intent

derived_watershed_association