Escondido Creek

2026 303(d) list Waterbody ID CAR9046200020011005134542 River & Stream Region 9 · San Diego

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 17 Appendix A decisions; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 17 pollutants in 9 Appendix A categories; Metals (3) · Nutrients (3) · Other Cause (1) · Pathogens (1) · Pesticides (5) · SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES (1) · Sediment (1) · Total Toxics (1) · Toxic Inorganics (1); Listing decisions
TMDL information Evidence: State-published: 17 decisions with a TMDL requirement status; Status codes as published: 5A; TMDL details
Regional Water Board: Region 9 · San Diego; River & Stream · Map
Industrial stormwater facilities: 67 report it as their receiving water Evidence: identification corroborated; 165 within 1 km Evidence: geographic proximity; Neither count establishes a discharge · Facilities

What a 303(d) listing means

The Clean Water Act section 303(d) list names waters that do not meet water quality standards for one or more pollutants or stressors. California publishes it in the Integrated Report; this page shows the 2026 decisions from Appendix A as published.

A listing describes the condition of the waterbody. It does not identify which sources cause the impairment, and it does not by itself place a requirement on any particular facility.
Listed waters do not all have the same status. The Integrated Report category says how an impairment is being addressed: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant. This waterbody's decisions are in category 5.
TMDL requirement status values (such as 5A or 5B) are shown exactly as published in Appendix A.

2026 listing status Evidence: State-published

On the 2026 303(d) list: Yes
Appendix A decisions: 17
Integrated Report category: 5 (a TMDL is required)
Listing cycle: 2026
State Board adoption: 2026-02-03 (Resolution 2026-0005)
USEPA approval: not confirmed — submittal letter to USEPA published; no approval found on the report page (checked 2026-10-22)
Regional Water Board: 9 — San Diego

Published by the State Water Resources Control Board (2026 California Integrated Report, Appendix A). Listing status is taken from Appendix A only. A listing describes the condition of this waterbody, not of any facility.

Location

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Listing decisions and pollutants Evidence: State-published

Grouped by the Pollutant Category published in Appendix A. Pollutant names, categories and decisions are exactly as published.

Metals (3 decisions)

Metals: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Iron	Metals	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	111651
Manganese	Metals	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	111654
Selenium	Metals	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	158370

Nutrients (3 decisions)

Nutrients: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Nitrogen	Nutrients	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	127254
Phosphate	Nutrients	5	Do Not Delist from 303(d) list (TMDL required list)	Original	A Source Unknown	68646
Phosphorus	Nutrients	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	111660

Other Cause (1 decision)

Other Cause: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Benthic Community Effects	Other Cause	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	126440

Pathogens (1 decision)

Pathogens: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Indicator Bacteria	Pathogens	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	127882

Pesticides (5 decisions)

Pesticides: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Bifenthrin	Pesticides	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	111671
Cyfluthrin	Pesticides	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	111678
Cypermethrin	Pesticides	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	144943
DDT (Dichlorodiphenyltrichloroethane)	Pesticides	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	127350
Pyrethroids	Pesticides	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	111670

SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES (1 decision)

SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Total Dissolved Solids	SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	111665

Sediment (1 decision)

Sediment: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Turbidity	Sediment	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	111667

Total Toxics (1 decision)

Total Toxics: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Toxicity	Total Toxics	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	111666

Toxic Inorganics (1 decision)

Toxic Inorganics: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Sulfates	Toxic Inorganics	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	111663

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Benthic Community Effects	5A	—	Low	—	—
Bifenthrin	5A	—	Low	—	—
Cyfluthrin	5A	—	Low	—	—
Cypermethrin	5A	—	Low	—	—
DDT (Dichlorodiphenyltrichloroethane)	5A	—	Low	—	—
Indicator Bacteria	5A	—	Low	—	—
Iron	5A	—	Low	—	—
Manganese	5A	—	Low	—	—
Nitrogen	5A	—	Low	—	—
Phosphate	5A	—	Low	—	—
Phosphorus	5A	—	Low	—	—
Pyrethroids	5A	—	Low	—	—
Selenium	5A	—	Low	—	—
Sulfates	5A	—	Low	—	—
Total Dissolved Solids	5A	—	Low	—	—
Toxicity	5A	—	Low	—	—
Turbidity	5A	—	Low	—	—

This is TMDL information for the waterbody. It does not establish that a TMDL applies to any particular facility. Facility-specific TMDL requirements recorded in SMARTS appear on facility pages and are not linked to this waterbody until reviewed.

HUC12 watersheds

Published with the listing Evidence: publisher-reported

None published.

Overlapping the waterbody's shape Evidence: spatial

Upper Escondido Creek 180703030401
Lower Escondido Creek 180703030402

Industrial stormwater facilities

Evidence: identification corroborated

Shows: the facility named this waterbody as its receiving water in SMARTS, and the name and the facility's location are consistent with it. Does not establish: a discharge pathway, a discharge of any pollutant, or a cause of the listing.

Evidence: geographic proximity

Shows: the facility's reported location is within 1 km of the waterbody's mapped shape. Does not establish: that the facility discharges to this waterbody, or any other relationship.

Report this waterbody as their receiving water Evidence: identification corroborated

Facilities whose reported receiving water is identified as this waterbody
Facility	WDID	Status	Distance from reported location	Map
JEB Sand Gravel	9 37I021310	Active	32 m	map
Superior Ready Mix Asphalt	9 37I028657	Active	40 m	map
Escondido Plant	9 37I006220	Terminated	57 m	map
Escondido Sand Gravel	9 37I017650	Terminated	66 m	map
First Transit Inc 55586A	9 37I022774	Terminated	74 m	map
Breeze Operations Escondido	9 37I027257	Active	74 m	map
Concrete Co	9 37I006131	Terminated	134 m	map
Hanson Aggregates	9 37I014666	Terminated	134 m	map
Nemo Bakery	9 37I001392	Active	144 m	map
Dixieline Lumber Escondido	9 37I015247	Terminated	212 m	map
CalPortland Company	9 37I029874	Terminated	214 m	map
Holliday Rock	9 37I031691	Active	224 m	map
Mahoney Environmental Solutions LLC San Diego	9 37I029793	Active	284 m	map
Damaged Goods Motorcycle Dismantler	9 37I023257	Terminated	325 m	map
Damaged Goods Motorcycle Dismantler	9 37NEC000157	Terminated	325 m	map
Skyline Recycling Co	9 37I025050	Active	346 m	map
Veritek Manufacturing Services LLC	9 37I020449	Terminated	354 m	map
Escondido City Hale Av Resourc	9 37I001242	Active	379 m	map
Laidlaw Escondido	9 37I014632	Terminated	381 m	map
EDI 1035 Maintenance	9 37I027746	Active	404 m	map
Sprinter Operations Facility	9 37I026657	Active	433 m	map
EDCO Refuse Services Inc	9 37I009787	Active	439 m	map
Osmonics Desal	9 37I016016	Terminated	452 m	map
Construction Metals Escondido	9 37I019650	Terminated	452 m	map
Pretium Packaging	9 37I028548	Terminated	486 m	map
GGR Metals	9 37I030899	Active	532 m	map
Merit Oil Company Escondido	9 37I030166	Active	548 m	map
Escondido Bulk Plant	9 37I028428	Terminated	559 m	map
The Countertop Company	9 37I028767	Active	566 m	map
Blaze Tile and Stone	9 37I029920	Active	616 m	map
Blaze Tile and Stone	9 37NEC010753	Terminated	616 m	map
Kimberly Clark Printing Tech	9 37I014454	Terminated	633 m	map
Robertsons Escondid Batch Plant	9 37I023400	Active	635 m	map
Veritek Manufacturing Services LLC	9 37I020404	Terminated	658 m	map
Fornaca Family Bakery	9 37I000225	Terminated	659 m	map
Bimbo Bakeries Usa	9 37I013549	Active	659 m	map
GEM Enterprises	9 37I027336	Active	705 m	map
Transportation Power LLC	9 37I029091	Terminated	724 m	map
Grangetto Farm & Garden Supply	9 37I026466	Active	796 m	map
Titleist Western Oper	9 37I001414	Terminated	826 m	map
California Metal Services Inc	9 37I030218	Terminated	828 m	map
Escondido Disposal	9 37I025018	Terminated	837 m	map
Imerys Perlite USA Inc	9 37I004349	Active	908 m	map
Stone Brewing Co	9 37I025815	Active	990 m	map
SDGE Palomar Energy Center	9 37I020131	Active	1.0 km	map
Palomar Energy LLC	9 37I020139	Terminated	1.0 km	map
US Iron Company	9 37I029039	Active	1.0 km	map
Aztec Perlite Co	9 37I003863	Terminated	1.1 km	map
Aztec Perlite Co	9 37I030652	Terminated	1.1 km	map
Legacy Thermal Processing LLC	9 37I031346	Active	1.1 km	map

Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 67 facilities. Page 1 of 2: next

Within 1 km of a facility's reported location Evidence: geographic proximity

Spatial proximity only; discharge pathway not established. Being near this waterbody does not mean a facility discharges to it.

Facilities whose reported location is within 1 km of this waterbody
Facility	WDID	Status	Distance	Map
Escondido Valley Center Manager LLC	9 37NNA003096	NONA Submitted	26 m	map
JEB Sand Gravel	9 37I021310	Active	32 m	map
B & W Precast	9 37I001903	Terminated	34 m	map
Oldcastel Precast Inc	9 37I022630	Terminated	34 m	map
Superior Ready Mix Asphalt	9 37I028657	Active	40 m	map
Escondido Plant	9 37I006220	Terminated	57 m	map
Escondido Disposal Inc	9 37I004121	Terminated	65 m	map
Escondido Sand Gravel	9 37I017650	Terminated	66 m	map
AA United EDM	9 37IN600737	Undetermined	74 m	map
First Transit Inc 55586A	9 37I022774	Terminated	74 m	map
Breeze Operations Escondido	9 37I027257	Active	74 m	map
Green Go Recycling Inc	9 37I025073	Active	77 m	map
Meziere Enterprises	9 37NEC001023	Terminated	85 m	map
Meziere Enterprises Inc	9 37NEC007104	Terminated	85 m	map
Meziere Enterprises Inc	9 37NEC012499	Active	88 m	map
3 Foundations	9 37NEC015191	Active	92 m	map
Electric Regulator Corporation	9 37NEC011623	Active	102 m	map
Security Public Storage Escondido	9 37NEC006527	Terminated	115 m	map
Pacific Commercial Door LLC	9 37NEC007575	Active	127 m	map
RL Engineering & Consulting DBA RLDH	9 37NEC007646	Terminated	127 m	map
JOMA ENTERPRISE LLC	9 37NEC010331	Terminated	127 m	map
Harmony Grove Water Reclamation Facility	9 37NNA003223	NONA Submitted	131 m	map
Security Public Storage Escondido	9 37NNA000983	NONA Submitted	134 m	map
Concrete Co	9 37I006131	Terminated	134 m	map
Hanson Aggregates	9 37I014666	Terminated	134 m	map
Nemo Bakery	9 37I001392	Active	144 m	map
Marathon General Inc	9 37I019074	Terminated	149 m	map
Student Transportation of America Escondido Facility	9 37NEC014259	Active	162 m	map
San Diego Rotary Broom	9 37I004399	Terminated	198 m	map
Goal Line LP	9 37I011263	Active	199 m	map
Vessel USA Inc	9 37NEC012844	Active	203 m	map
Pretium Packaging Spruce Warehouse	9 37NEC009706	Terminated	204 m	map
Lucky Stores Inc	9 37I001170	Terminated	212 m	map
Dean Foods Co CA Inc	9 37I014628	Terminated	212 m	map
Dixieline Lumber Escondido	9 37I015247	Terminated	212 m	map
CalPortland Company	9 37I029874	Terminated	214 m	map
Holliday Rock	9 37I031691	Active	224 m	map
Ashland Granite	9 37I004216	Terminated	224 m	map
Sentinel Hydrosolutions LLC	9 37NEC009162	Active	238 m	map
Motoport USA	9 37NEC010336	Active	238 m	map
Sentinel Hydrosolutions LLC	9 37NEC011347	Active	238 m	map
Artistic Entrances Inc	9 37NEC007505	Active	247 m	map
tearlab	9 37NEC007150	Active	248 m	map
Mamai Coffee Company	9 37NEC011751	Terminated	259 m	map
Jacked Up Brewery	9 37NEC011882	Active	283 m	map
Mahoney Environmental Solutions LLC San Diego	9 37I029793	Active	284 m	map
Barley and Sword Brewing Company	9 37NEC015661	Active	290 m	map
Sculpt Nouveau	9 37NEC007397	Active	298 m	map
Planetary Machine & Engineering Inc	9 37NEC012089	Terminated	303 m	map
Escondido Ready Mix	9 37I025320	Active	304 m	map

165 facilities, nearest first. Page 1 of 4: next

Sources and provenance

Sources behind this page
Information	Source	Retrieved
Watershed Boundary Dataset HU2 GeoPackages 15, 16, 18 (WBDHU12)	USGS	2026-10-22
2026 California Integrated Report, Appendix A: 2026 303(d) List (final)	SWRCB	2026-10-22
Final_2026_Rivers_and_Streams + Final_2026_Lakes_and_Reservoirs (FeatureServer 0)	SWRCB GIS	2026-10-22
SMARTS TMDL requirements	SMARTS	2026-10-21

Relationships computed 2026-10-22 (facility_huc12/1, proximity/1, receiving_water/2, tmdl_reference/1, waterbody_huc12_ovl/1, waterbody_huc12_pub/1).

Integrated Report categories: 5, a TMDL is required; 4a, addressed by a USEPA-approved TMDL; 4b, addressed by other pollution control requirements; 4c, impairment not caused by a pollutant.