← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

Islais Creek Channel

Waterbody ID (WBID)
CAE2044001020020129151927
County / counties
San Francisco
Regional Water Board
Regional Board 2 - San Francisco Bay Region
Waterbody type
Estuary
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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
AmmoniaNutrients151515Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ChlordanePesticides151250Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
DieldrinPesticides151251Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Hydrogen SulfideToxic Inorganics151252Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
Indicator BacteriaPathogens148992List on 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
PAHs (Polycyclic Aromatic Hydrocarbons)Toxic Organics151584Do Not Delist from 303(d) list (TMDL required list)Revised5A — TMDL still required—Low
ToxicityTotal Toxics151253Do Not Delist from 303(d) list (TMDL required list)Revised5A — 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
Sep 16, 2026, 10:56 PM UTC
Waterbody ID
CAE2044001020020129151927
CALWNUM
2204.100000, 2204.400102
WBD code
180500041001, 180500041002
Geometry
Official Water Board GIS (CA_WATERBOARDS_GIS_FINAL_2026)

Location

Official 2026 Water Board geometry. Demonstration facility markers are shown for context only.

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Watershed
—
Assessed size
74.64 Acres

Derived facility associations

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

Derived
A La Rocca Sea Food Inc

San Francisco · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

ABF Freight System Inc

Oakland · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Central Concrete Supply

South San Francisco · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Central Concrete Supply

San Francisco · Notice of Intent · 0.12 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Darling Ingredients Inc

San Francisco · Notice of Intent · 0.12 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

DHL Express JCC

San Francisco · Notice of Intent · 0.83 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Durham School Services South San Francisco

South San Francisco · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

FedEx Express Corp JBSA

Oakland · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Greyscale AI Inc

San Carlos · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Meta 1200 Mississippi Bus Hub

San Francisco · No Exposure Certification · 0.36 km away

derived_receiving_water

Derived by California Stormwater Intelligence

MV Burlingame Div 267

Burlingame · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pabco Gypsum Port

Redwood City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Pier 92 Amador Ready Mix

San Francisco · Notice of Intent · 0.12 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Pulmonx Coporation

Redwood City · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

REACH 039 Oakland CA

Oakland · Notice of Non-Applicability

derived_watershed_association

Derived by California Stormwater Intelligence

Recology San Francisco Sustainable Crushing

San Francisco · Notice of Intent · 0.45 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Recycle Central At Pier 96

San Francisco · Notice of Intent · 0.75 km away

derived_nearby_in_watershed

Derived by California Stormwater Intelligence

Safe Harbor Ballena Isle Suite 111

Alameda · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

SPACESONIC INC

Union City · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Tikal Tile Inc

San Carlos · No Exposure Certification

derived_watershed_association

Derived by California Stormwater Intelligence

Trac Intermodal

San Lorenzo · Notice of Intent

derived_watershed_association

Derived by California Stormwater Intelligence

Zoetis LLC

Union City · 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.