Tujunga Wash (LA River to Hansen Dam)

2026 303(d) list Waterbody ID CAR4052100019990202134750 River & Stream Region 4 · Los Angeles

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 4 Appendix A decisions; Category 4a: addressed by a USEPA-approved TMDL; What a listing means
Pollutants and stressors: 4 pollutants in 4 Appendix A categories; Metals (1) · Nutrients (1) · Pathogens (1) · Trash (1); Listing decisions
TMDL information Evidence: State-published: 4 decisions with a TMDL requirement status; 4 name a TMDL project; Status codes as published: 5B; TMDL details
Regional Water Board: Region 4 · Los Angeles; River & Stream · Map
Industrial stormwater facilities: 1 report it as their receiving water Evidence: identification corroborated; 314 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 4a.
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: 4
Integrated Report category: 4a (addressed by a USEPA-approved TMDL)
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: 4 — Los Angeles

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 (1 decision)

Metals: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Copper	Metals	4a	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	Nonpoint Source	69636

Nutrients (1 decision)

Nutrients: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Ammonia	Nutrients	4a	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	Nonpoint Source	68724

Pathogens (1 decision)

Pathogens: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Indicator Bacteria	Pathogens	4a	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	A Source Unknown	150339

Trash (1 decision)

Trash: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Trash	Trash	4a	List on 303(d) list (being addressed by USEPA approved TMDL)	Original	Nonpoint Source Surface Runoff Urban Runoff/Storm Sewers	69753

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Ammonia	5B	Los Angeles River Nitrogen (11)	—	2004-03-18	—
Copper	5B	Los Angeles River Metals (13)	—	2005-12-22	—
Indicator Bacteria	5B	Los Angeles River Pathogens (15)	—	2012-03-23	—
Trash	5B	Los Angeles River Trash (12)	—	2008-07-24	—

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

Lower Big Tujunga Creek 180701050105
Tujunga Wash-Los Angeles River 180701050208

Overlapping the waterbody's shape Evidence: spatial

Lower Big Tujunga Creek 180701050105 also published
Tujunga Wash-Los Angeles River 180701050208 also published

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
East Valley Diversion	4 19I021755	Active	820 m	map

Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 1 facility.

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
Branford Used Parts & Dismantling	4 19I027951	Terminated	700 m	map
ACTIVE MAGNETIC INSPECTION	4 19I009585	Terminated	705 m	map
ACTIVE MAGNETIC INSPECTION	4 19NEC004151	Active	705 m	map
Valley Generating Station	4 19I004624	Active	706 m	map
PMC Direct Pack Inc	4 19I025619	Active	707 m	map
OPM Auto Dismantling Inc	4 19NEC011773	Active	709 m	map
Dillon Aircraft Deburring	4 19I016576	Terminated	713 m	map
Sheehan Foundry	4 19I004516	Terminated	717 m	map
Angelus Block Co Inc Sheldon	4 19I004552	Terminated	722 m	map
Mgm Quality Used Auto Parts	4 19I015334	Terminated	725 m	map
Honda Foreign and Parts Quote	4 19I023016	Active	725 m	map
Beacon Building Products	4 19I016315	Terminated	725 m	map
Magic Auto Dismantling	4 19I012560	Terminated	728 m	map
Audi Plus Dismantling Inc	4 19I022303	Terminated	728 m	map
Used Auto Parts Industrial LLC	4 19I024779	Terminated	730 m	map
Sunrise 21st Motors Inc	4 19I014921	Terminated	739 m	map
Bohannan	4 19I002824	Terminated	740 m	map
Robertsons Ready Mix North Hollywood	4 19I015769	Active	740 m	map
Prestige Auto Parts & Salvage Inc	4 19I020478	Terminated	740 m	map
A 1 Auto Wrecking	4 19I005079	Terminated	742 m	map
Thompson Gundrilling Inc	4 19I014804	Active	743 m	map
Truck Parts Co	4 19I005937	Terminated	743 m	map
Sam S Auto Salvage Inc	4 19I012725	Terminated	746 m	map
Z Best Auto Wrecking	4 19I017299	Terminated	746 m	map
Martinez Hauling Junk Tires	4 19IN600236	Undetermined	751 m	map
Savon Auto Parts Salvage	4 19I023871	Terminated	755 m	map
Tempco Engineering	4 19I025840	Terminated	756 m	map
A Joeys Auto Dismantling	4 19I016369	Terminated	757 m	map
All Saturn Dismantling	4 19I020263	Terminated	757 m	map
BMS Auto Parts INC	4 19I021533	Terminated	757 m	map
Pac Truck Salvage Inc	4 19I003068	Terminated	757 m	map
Rallys Auto Parts	4 19I019419	Terminated	757 m	map
Bells Trucks Vans Wrecking	4 19I020757	Terminated	757 m	map
Auto Rallys Wrecking	4 19I022614	Terminated	757 m	map
A J Auto Parts	4 19I023034	Terminated	757 m	map
Harrys Auto Parts	4 19I020264	Terminated	763 m	map
Robert C Worth Inc	4 19I016634	Terminated	763 m	map
Prestige Auto Parts & Dismant	4 19I004138	Terminated	768 m	map
Prestige Auto Parts & Salvage	4 19I014952	Terminated	768 m	map
Folkswagon Auto Dism	4 19I004782	Terminated	769 m	map
Five Star Auto Parts Inc	4 19I020870	Active	772 m	map
Honda Only Auto Dismantling	4 19I001023	Terminated	777 m	map
Mole Richardson Co Ltd	4 19NEC003684	Terminated	781 m	map
MOLE RICHARDSON CO LLC	4 19NEC004689	Terminated	781 m	map
El Chicos Dismantler	4 19I029300	Active	781 m	map
Import Parts Only Auto Dismantling	4 19I019547	Active	787 m	map
Cosmetic Group USA LLC	4 19NEC011705	Active	792 m	map
OPM Auto Dismantling Inc	4 19I026701	Terminated	792 m	map
Pro Circuits Co	4 19I009198	Terminated	793 m	map
All Trucks & Auto Wrecking Inc	4 19I025882	Terminated	799 m	map

314 facilities, nearest first. Page 5 of 7: 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.