← Impaired waters

Waterbody profile

Official Water Board record · 2026 cycle

San Antonio Creek (San Antonio Watershed, Rancho del las Flores Bridge at Hwy 135 to downstream at Railroad Bridge)

Waterbody ID (WBID)
CAR3130001020020918211049
County / counties
Santa Barbara
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 / stressorDecision IDFinal listing decisionDecision statusTMDL requirement statusTMDL projectTMDL priority
AmmoniaNutrients127840List on 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
ArsenicMetals110102List on 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
BoronMetals110105Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
ChlorideSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES110108Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
Escherichia coli (E. coli)Pathogens125844Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
NitrateNutrients128107Do Not Delist from 303(d) list (being addressed with action other than TMDL)Revised5C Addressed by action other than a TMDL
Oxygen, DissolvedNutrients110131Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
SeleniumMetals110136List on 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
SodiumSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES110138Do Not Delist from 303(d) list (TMDL required list)Revised5A TMDL still requiredLow
ToxicityTotal Toxics110141List on 303(d) list (TMDL required list)Revised5A TMDL still requiredLow

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
CAR3130001020020918211049
CALWNUM
31300050
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
29.32 Miles

Derived facility associations

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

Derived
Careaga Canyon Oilfield

Los Alamos · Notice of Intent · 0.81 km away

derived_receiving_water

Derived by California Stormwater Intelligence

Santa Barbara's Finest, LLC

Los Alamos · Notice of Non-Applicability · 0.27 km away

derived_receiving_water

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.