Salton Sea

Waterbody ID (WBID): CAS7280000019990205133504
County / counties: Imperial, Riverside
Regional Water Board: Regional Board 7 - Colorado River Basin Region
Waterbody type: Saline Lake
Condition category: Category 5 — 303(d) listed, TMDL required
Integrated Report cycle: 2026

303(d) listings (17)

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
AmmoniaNutrients	78466	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ArsenicMetals	156213	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlorideSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	171980	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ChlorpyrifosPesticides	156227	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
CyfluthrinPesticides	170788	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Cyhalothrin, LambdaPesticides	170789	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
CypermethrinPesticides	169362	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDE (Dichlorodiphenyldichloroethylene)Pesticides	170165	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	170124	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
EnterococcusPathogens	72548	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ImidaclopridPesticides	171987	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Low Dissolved OxygenNutrients	75163	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Medium
MalathionPesticides	156262	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
NutrientsNutrients	70708	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Medium
PyrethroidsPesticides	169361	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
SalinitySALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	77576	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
ToxicityTotal Toxics	78053	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: CAS7280000019990205133504
CALWNUM: 10719.470000, 10721.000000, 10722.200000, 10723.100000, 10725.000000, 10728.000000
WBD code: 181002030803, 181002040707, 181002040905, 181002041002, 181002041003, 181002041101, 181002041102, 181002041109, 181002041202, 181002041203, (Total Count: 17)
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: 233044.82 Acres

Derived facility associations

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

Derived

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derived_watershed_association