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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Open this area on the statewide map · Browse impaired waters

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
Blaze Tile and Stone	9 37I027237	Terminated	1.3 km	map
California Metal Services Inc	9 37I024914	Active	1.3 km	map
Banister Iron Works	9 37I027457	Terminated	1.3 km	map
Banister Iron Works	9 37NEC003170	Terminated	1.3 km	map
San Diego Steel Solutions	9 37NEC011471	Active	1.4 km	map
CalPortland Company DBA Superior Escondido Plant	9 37I031581	Active	1.5 km	map
Escondido Ready Mix	9 37I005160	Terminated	1.5 km	map
Trench Plate Rental Co	9 37I003389	Terminated	1.9 km	map
Integrated Cryogenic Solutions LLC	9 37I029109	Active	2.1 km	map
Escondido Energy Center LLC	9 37I022361	Active	2.1 km	map
Freeberg Industrial Fabrication Corporation	9 37NEC015357	Active	2.2 km	map
Advanced Chemical Transport	9 37I027654	Active	2.3 km	map
Red Mountain Machinery	9 37I015138	Terminated	2.4 km	map
Lormac Plastics Inc	9 37I029106	Active	2.4 km	map
NeMos Bakery	9 37I029116	Active	2.5 km	map
Olympic Coatings	9 37I027481	Terminated	2.6 km	map
Idel Designs Inc	9 37I027337	Terminated	2.6 km	map

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

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
C & H Machine Inc	9 37NEC000694	Terminated	553 m	map
Escondido Bulk Plant	9 37I028428	Terminated	559 m	map
The Countertop Company	9 37I028767	Active	566 m	map
Quality Craft Custom Cabinets Inc	9 37NEC003815	Active	570 m	map
Water Innovations	9 37NEC009623	Terminated	572 m	map
Excell Membranes	9 37NEC012811	Terminated	573 m	map
KIESEL GUITARS	9 37NEC012039	Active	597 m	map
Edge Tech Manufacturing Incorporated	9 37NEC008380	Terminated	599 m	map
Flying J Machine Inc	9 37NEC011738	Active	599 m	map
San Diego Laminated Furniture	9 37NEC011639	Active	601 m	map
Genesis Mold and Manufacturing Inc	9 37NEC008909	Terminated	611 m	map
Blaze Tile and Stone	9 37I029920	Active	616 m	map
Blaze Tile and Stone	9 37NEC010753	Terminated	616 m	map
Formulabs Inc	9 37I001210	Terminated	633 m	map
Kimberly Clark Printing Tech	9 37I014454	Terminated	633 m	map
Robertsons Escondid Batch Plant	9 37I023400	Active	635 m	map
Palomar Plating Co Inc	9 37I002891	Terminated	638 m	map
ZUZA	9 37NEC002535	Terminated	639 m	map
Remec Veritek	9 37I017857	Terminated	658 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
Cardinal Auto Wrecking	9 37I010369	Terminated	661 m	map
Zest Anchors LLC	9 37NEC010230	Active	664 m	map
721 W 4th Ave	9 37NEC015235	Active	674 m	map
dodsons mfg co	9 37NEC011687	Terminated	676 m	map
Esperanzas Tortilleria	9 37NEC007613	Active	678 m	map
Microwave Specialty Company	9 37NEC008663	Active	680 m	map
San Diego Refining Co	9 37NEC006875	Active	685 m	map
Encinitas Landfill	9 37I004562	Terminated	699 m	map
GEM Enterprises	9 37I027336	Active	705 m	map
SWEETBUDS & CO USA LLC	9 37NEC016361	Active	716 m	map
Transportation Power LLC	9 37I029091	Terminated	724 m	map
Gallade Chemical	9 37I010928	Terminated	734 m	map
Gallade Chemical	9 37NEC000255	Active	734 m	map
International Treescapes LLC	9 37NEC010097	Terminated	743 m	map
Mavericks Manufacturing Partners LLC	9 37NEC012054	Active	743 m	map
Prickly Motorsports	9 37NEC013061	Active	743 m	map
Hawthorne Rent It Ser	9 37I005921	Terminated	752 m	map
U S Circuit Inc	9 37NEC000196	Active	752 m	map
US CIRCUIT INC	9 37NEC007148	Terminated	752 m	map
Ingenium Group LLC	9 37NEC001813	Terminated	752 m	map
Veolia ES Technical Solutions LLC	9 37NEC015712	Active	764 m	map
QP Technologies	9 37NEC008900	Active	775 m	map
Champion Metal Works Home Office	9 37NEC015829	Active	776 m	map
Grangetto Farm & Garden Supply	9 37I026466	Active	796 m	map
MAAS ROWE CARILLONS	9 37NEC015658	Active	800 m	map
So Cal Surplus and Ewaste	9 37NEC015583	Active	806 m	map
US Postal Ser Escondido	9 37I013156	Terminated	813 m	map
Roadway Express	9 37I005837	Terminated	822 m	map

165 facilities, nearest first. Page 3 of 4: previous 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.