San Benito River

Waterbody ID (WBID): CAR3053002019981207091641
County / counties: San Benito
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 (10)

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
AluminumMetals	151451	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
BoronMetals	80889	List on 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
CopperMetals	107234	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Escherichia coli (E. coli)Pathogens	125846	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	High
ManganeseMetals	107242	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
pHOther Cause	107247	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Sedimentation/SiltationSediment	69397	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	Pajaro River Siltation/Sedimentation (including San Benito R., Llagas Cr., Rider Gulch Cr.)	—
Specific ConductivitySALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	126392	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ToxicityTotal Toxics	107251	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
TurbiditySediment	107253	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: Aug 21, 2026, 12:44 AM UTC
Waterbody ID: CAR3053002019981207091641
CALWNUM: 3305.200402, 3305.200502, 3305.300200, 3305.500106, 3305.500201, 3305.500202, 3305.500203, 3305.500205, 3305.500206, 3305.500301, (Total Count: 16)
WBD code: 180600020502, 180600020503, 180600020504, 180600020506, 180600020606, 180600020701, 180600020703, 180600020705
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: 86.78 Miles

Facilities with an NAL exceedance for a listed pollutant (1)

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

Neil Jones Food Company dba San Benito Foods3 35I028751

Aluminum · most recent exceedance RY 2021 · 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

Advantage Truss Co LLC

Hollister · No Exposure Certification · 0.15 km away

derived_nearby_in_watershed