Pajaro River

Waterbody ID (WBID): CAR3051003019980826115152
County / counties: Monterey, San Benito, Santa Clara, 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 (26)

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	151449	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Benthic Community EffectsOther Cause	131883	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
BoronMetals	69845	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ChlordanePesticides	148902	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlorideSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	87200	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ChlorpyrifosPesticides	107058	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Pajaro River Chlorpyrifos and Diazinon TMDL	—
ChromiumMetals	107141	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDD (Dichlorodiphenyldichloroethane)Pesticides	150814	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDE (Dichlorodiphenyldichloroethylene)Pesticides	150817	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	150819	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DieldrinPesticides	148907	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Escherichia coli (E. coli)Pathogens	125870	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	High
Heptachlor epoxidePesticides	148913	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ImidaclopridPesticides	148927	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ManganeseMetals	107079	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
NickelMetals	107084	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
NitrateNutrients	150841	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Pajaro River Watershed Nutrients	—
OxyfluorfenPesticides	129864	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Oxygen, DissolvedNutrients	107091	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Pajaro River Watershed Nutrients	—
PCBs (Polychlorinated biphenyls)Toxic Organics	148921	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
pHOther Cause	107093	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Sedimentation/SiltationSediment	69273	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.)	—
SeleniumMetals	107101	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
SodiumSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	75362	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ToxicityTotal Toxics	107105	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Pajaro River Chlorpyrifos and Diazinon TMDL	—
TurbiditySediment	107108	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: CAR3051003019980826115152
CALWNUM: 3305.100200, 3305.100301, 3305.200401, 3305.200402, 3305.300200
WBD code: 180600020705, 180600020801, 180600020805
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: 29.52 Miles

Facilities with an NAL exceedance for a listed pollutant (10)

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

Metech Recycling Inc3 43I025004

Aluminum · most recent exceedance RY 2025 · association: derived watershed association

Neil Jones Food Company dba San Benito Foods3 35I028751

Aluminum · most recent exceedance RY 2021 · association: derived watershed association

Nutrien Ag Solutions Inc3 44I029864

Aluminum · most recent exceedance RY 2025 · association: derived watershed association

Pajaro valley fabrication3 44I026009

Aluminum · most recent exceedance RY 2020 · association: derived receiving water

Recology Pacheco Pass3 43I000136

Aluminum · most recent exceedance RY 2025 · association: derived nearby in watershed

Rinaldi Tile and Marble3 27I029837

pH · most recent exceedance RY 2024 · association: derived nearby in watershed

S Martinelli Co3 44I000009

pH · most recent exceedance RY 2018 · association: derived receiving water

Trical Soil Fumigation3 35I000345

pH · most recent exceedance RY 2016 · association: derived nearby in watershed

Watsonville Municipal Ser Cen3 44I003034

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

Z Best Products3 43I013449

Aluminum · most recent exceedance RY 2022 · 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

Advantage Truss Co LLC

Hollister · No Exposure Certification

derived_watershed_association