Escondido Creek

Waterbody ID (WBID): CAR9046200020011005134542
County / counties: San Diego
Regional Water Board: Regional Board 9 - San Diego Region
Waterbody type: River & Stream
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
Benthic Community EffectsOther Cause	126440	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
BifenthrinPesticides	111671	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
CyfluthrinPesticides	111678	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
CypermethrinPesticides	144943	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
DDT (Dichlorodiphenyltrichloroethane)Pesticides	127350	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Indicator BacteriaPathogens	127882	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
IronMetals	111651	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ManganeseMetals	111654	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
NitrogenNutrients	127254	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PhosphateNutrients	68646	Do Not Delist from 303(d) list (TMDL required list)	Original	5A — TMDL still required	—	Low
PhosphorusNutrients	111660	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
PyrethroidsPesticides	111670	List on 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
SeleniumMetals	158370	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
SulfatesToxic Inorganics	111663	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
Total Dissolved SolidsSALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	111665	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
ToxicityTotal Toxics	111666	Do Not Delist from 303(d) list (TMDL required list)	Revised	5A — TMDL still required	—	Low
TurbiditySediment	111667	List on 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: Sep 16, 2026, 10:57 PM UTC
Waterbody ID: CAR9046200020011005134542
CALWNUM: 90462000
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: 20.88 Miles

Facilities with an NAL exceedance for a listed pollutant (8)

Geographically associated industrial stormwater facilities whose reported results exceeded an Industrial General Permit Numeric Action Level for a pollutant this waterbody is listed for.

Derived

EDCO Refuse Services Inc9 37I009787

Iron · most recent exceedance RY 2017 · association: derived receiving water

EDI 1035 Maintenance9 37I027746

Iron · most recent exceedance RY 2018 · association: derived receiving water

Goal Line LP9 37I011263

Iron · most recent exceedance RY 2024 · association: derived receiving water

Grangetto Farm & Garden Supply9 37I026466

Iron · most recent exceedance RY 2019 · association: derived receiving water

Green Go Recycling Inc9 37I025073

Iron · most recent exceedance RY 2016 · association: derived receiving water

Imerys Perlite USA Inc9 37I004349

Iron · most recent exceedance RY 2024 · association: derived receiving water

Skyline Recycling Co9 37I025050

Iron · most recent exceedance RY 2019 · association: derived receiving water

Superior Ready Mix Asphalt9 37I028657

Iron · most recent exceedance RY 2024 · association: derived receiving water

This is derived co-occurrence between a calculated NAL comparison and the official 303(d) listing for this waterbody. An NAL exceedance triggers Exceedance Response Actions under the permit; it is not a violation and does not establish that any facility caused or contributed to this impairment.

Derived facility associations

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

Derived

American Ceramic Technology Inc

Escondido · No Exposure Certification · 0.42 km away

derived_receiving_water