California Stormwater Intelligence

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Waterbody profile

Official Water Board record · 2026 cycle

Kirker Creek

Waterbody ID (WBID): CAR2073104020080624164244
County / counties: Contra Costa
Regional Water Board: Regional Board 2 - San Francisco Bay Region
Waterbody type: River & Stream
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (4)

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
Benthic Community EffectsOther Cause	154207	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PyrethroidsPesticides	77853	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	5B — Addressed by USEPA-approved TMDL	San Francisco Bay Urban Creeks Diazinon	—
ToxicityTotal Toxics	151293	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
TrashTrash	99773	Do Not Delist from 303(d) list (being addressed with action other than TMDL)	Original	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: CAR2073104020080624164244
CALWNUM: 2207.310102, 2207.310300, 2207.340100, 2207.340200
WBD code: 180500010301
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: 8.03 Miles

Derived facility associations

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

Derived

Angel Island Co LLC dba Headlands Brewing Co

Pittsburg · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Antioch Building Material

Pittsburg · Notice of Non-Applicability · 0.08 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

BNSF Railway Pittsburg

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Canyon Formulations LLC

Pittsburg · Notice of Non-Applicability · 0.62 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Canyon Formulations LLC

Pittsburg · No Exposure Certification · 0.62 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Chemtrade West US LLC

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Corteva Agriscience Pittsburg Operations

Pittsburg · Notice of Intent · 0.96 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Delta Energy Ctr

Pittsburg · Notice of Intent · 0.80 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pittsburg · Notice of Intent · 0.46 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Henkel Corp Aerospace Group

Bay Point · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

JASS BOYS TRUCK LINES LLC

Bay Point · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Keller Canyon Landfill Co

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Koch Carbon LLC

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Kortick Manufacturing

Pittsburg · Notice of Intent · 0.15 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pittsburg · Notice of Intent · 0.36 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Los Medanos Energy Center

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Maintenance Trans Yd

Pittsburg · Notice of Intent · 0.91 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Majestic Steel USA

Pittsburg · No Exposure Certification · 0.47 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Manwills Auto Wreckers

Bay Point · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pittsburg · Notice of Intent · 0.20 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

NuStar Logistics LP

Pittsburg · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Recycling Zone Pittsburg

Pittsburg · Notice of Intent · 0.92 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Shell Catalysts & Technologies

Bay Point · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Signode Angleboard

Bay Point · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Student Transportation of America Contra Costa

Pittsburg · Notice of Intent · 0.26 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Willow Pass Warehouse

Pittsburg · No Exposure Certification

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.