Orestimba Creek, east of the Delta Mendota Canal (Stanislaus County)

Waterbody ID (WBID): CAR5355000020240312037489
County / counties: Stanislaus
Regional Water Board: Regional Board 5 - Central Valley Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (16)

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
Azinphos-methyl (Guthion)Pesticides	154765	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
BifenthrinPesticides	154787	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlorpyrifosPesticides	154768	Do Not Delist from 303(d) list (being addressed with action other than TMDL)	Revised	5C — Addressed by action other than a TMDL	San Joaquin River Diazinon and Chlorpyrifos	—
ChromiumMetals	154762	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Cyhalothrin, LambdaPesticides	154797	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDE (Dichlorodiphenyldichloroethylene)Pesticides	154766	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	154776	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DiazinonPesticides	154764	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	5B — Addressed by USEPA-approved TMDL	Sacramento and San Joaquin Pesticides Basin Plan Amendment and TMDLs (Phase 1)	—
DieldrinPesticides	154777	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Esfenvalerate/FenvaleratePesticides	154802	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ImidaclopridPesticides	154950	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Indicator BacteriaPathogens	154785	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
NickelMetals	154761	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Oxygen, DissolvedNutrients	154968	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
PyrethroidsPesticides	154800	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ToxicityTotal Toxics	154770	Do Not Delist from 303(d) list (being addressed with action other than TMDL)	Revised	5C — Addressed by action other than a TMDL	—	—

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: CAR5355000020240312037489
CALWNUM: 6535.500000, 6541.100000
WBD code: 180400020104, 180400020202, 180400020205
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: 14 Miles

Derived facility associations

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

Derived

Amazon com Services LLC MCE1

Turlock · Notice of Intent

derived_watershed_association