South San Jose Creek (Los Angeles County)

2026 303(d) list Waterbody ID CAR4055100020110328104701 River & Stream Region 4 · Los Angeles

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 1 Appendix A decision; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 1 pollutant in 1 Appendix A category; Total Toxics (1); Listing decisions
TMDL information Evidence: State-published: 1 decision with a TMDL requirement status; Status codes as published: 5A; TMDL details
Regional Water Board: Region 4 · Los Angeles; River & Stream · Map
Industrial stormwater facilities: 0 report it as their receiving water Evidence: identification corroborated; 127 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: 1
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: 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.

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	List on 303(d) list (TMDL required list)	Original	A Source Unknown	96993

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Toxicity	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

Upper San Jose Creek 180701060501

Overlapping the waterbody's shape Evidence: spatial

Upper San Jose Creek 180701060501 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

No facility's reported receiving water is identified as this waterbody.

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
Structural Composites	4 19I004250	Terminated	236 m	map
Equipment Design and Manufacturing Inc	4 19NEC003586	Active	250 m	map
Electrocube	4 19NEC004065	Active	253 m	map
Electrocube Inc	4 19NEC012685	Terminated	253 m	map
Mil Spec Magnetics Inc	4 19NEC003621	Active	278 m	map
LA Home Custom Cabinetry	4 19NEC012618	Active	290 m	map
Automation Managers Inc	4 19NEC014873	Active	298 m	map
Island Environmental Services Inc	4 19I018876	Terminated	301 m	map
Precision Powdered Metal Parts	4 19I025142	Active	309 m	map
Builders Emporium	4 19I000347	Terminated	321 m	map
CSR Industries Corp	4 19NEC004428	Active	325 m	map
CRS Industries Corp	4 19IN606456	No Action Required	329 m	map
JUELL MACHINE CO INC	4 19NEC015721	Active	329 m	map
Structural Composites	4 19I004332	Terminated	330 m	map
Continental Precision Stamping Inc	4 19NEC010241	Active	338 m	map
Continental Precision Stamping Inc	4 19I018801	Terminated	353 m	map
Continental Precision Stamping Inc	4 19NEC003760	Active	353 m	map
Ormco Corp	4 19NEC010110	Active	362 m	map
Quinn Rental Services	4 19I022736	Terminated	368 m	map
K1packaging	4 19NEC011470	Active	374 m	map
L&H Mold & Eng Inc	4 19I031399	Terminated	376 m	map
L&H Mold & Eng Inc	4 19NEC015422	Active	376 m	map
Bragel International Inc	4 19NEC002114	Terminated	392 m	map
Bragel International Inc	4 19NEC005162	Active	392 m	map
RW Materials LLC	4 19I025408	Active	417 m	map
R W Materials LLC	4 19IN602792	No Action Required	417 m	map
Kerr Corporation	4 19NEC002620	Active	423 m	map
One Stop Truck Repair & Collision Center	4 19IN603943	No Action Required	448 m	map
BRENTWOOD MFG CO	4 19NEC002718	Active	469 m	map
A & J Commissary Inc	4 19NEC015379	Active	491 m	map
Laras Meat Inc	4 19NEC003585	Active	493 m	map
AMERICAN EAGLE SUPPLY INC DBA CITCO	4 19NEC015663	Active	502 m	map
KC SCOTT MANUFACTURING INC	4 19NEC003630	Active	526 m	map
Industrial Alloys Inc	4 19I003792	Terminated	527 m	map
k2label & Printing Inc	4 19NEC015738	Active	533 m	map
Print.Net	4 19IN603710	NEC Required	547 m	map
SW Fixtures Inc	4 19NEC015665	Active	555 m	map
Impressive Dental Products	4 19NEC003507	Terminated	556 m	map
Whiplash 20	4 19NEC012657	Active	564 m	map
LockRidge Tool Company Inc	4 19NEC003481	Terminated	567 m	map
Solo Clip Inc dba Clip House	4 19NEC003462	Terminated	568 m	map
Solo Clip Inc dba Clip House	4 19NEC004698	Active	568 m	map
CB Enterprises	4 19IN603711	No Action Required	584 m	map
WR Meadows of Southern California	4 19I010271	Active	586 m	map
Southern California Packaging Equipment	4 19NEC012422	Active	589 m	map
Consolidated Foundries Pomona	4 19I016314	Terminated	595 m	map
Pro1Print	4 19NEC015544	Active	617 m	map
Cambro Manufacturing Company COI	4 19NEC000525	Terminated	618 m	map
LA Cnty Sanitation Dist Spadra	4 19I006190	Terminated	631 m	map
Essential Pharmaceutical Corporation	4 19NEC003564	Active	646 m	map

127 facilities, nearest first. Page 2 of 3: 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.