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
Dick Huizenga Trucking	4 19I004744	Terminated	29 m	map
Altec Indstries Inc	4 19I018556	Terminated	29 m	map
Frank Smith Masonry	4 19I017867	Active	37 m	map
NAN&SEN Limited Liability Company	4 19NEC013146	Active	43 m	map
Roc Aire Corporation	4 19NEC005049	Terminated	47 m	map
Roc Aire Corporation	4 19NEC011215	Active	47 m	map
Roc-Aire Corporation	4 19NEC003578	Terminated	53 m	map
Pomona Water Reclamation Plant	4 19I007152	Active	54 m	map
KC Pharmaceuticals Inc	4 19NEC003661	Terminated	59 m	map
Sina Coach	4 19NEC015148	Active	63 m	map
Cubeworkcom Inc	4 19NEC013740	Active	77 m	map
KC Pharmaceuticals Inc	4 19NEC003662	Terminated	89 m	map
Structural Composites Industries LLC	4 19I030929	Terminated	100 m	map
Structural Composites Industries LLC	4 19I030999	Active	100 m	map
Rockport Envelope Company	4 19NEC015964	Active	106 m	map
Quad Graphics Marketing LLC	4 19I024837	Terminated	111 m	map
Grapevine Intermodal	4 19NEC015773	Active	113 m	map
Trarms Inc DBA Presma	4 19NEC013490	Active	127 m	map
Teschner Mold Inc	4 19I021222	Terminated	140 m	map
Scientific Pharmaceuticals Inc	4 19NEC003474	Active	141 m	map
Scientific Pharmaceuticals	4 19NEC014770	Terminated	141 m	map
Johnston Pump Ser Ctr	4 19I010733	Terminated	146 m	map
Pcc Flow Technologies	4 19I017159	Terminated	146 m	map
Sulzer Pumps Houston Inc	4 19I019424	Terminated	146 m	map
Smurfit Newsprint Corp	4 19I000913	Terminated	150 m	map
Worldwide Recovery Systems Inc	4 19I023511	Active	155 m	map
Mike Brown Grandstands	4 19I019856	Terminated	164 m	map
Dalco Screen and Pad Printing	4 19NEC003580	Terminated	169 m	map
Litho Screen Arts Inc	4 19NEC014080	Active	170 m	map
KKW Trucking	4 19I002956	Terminated	173 m	map
Epic Printing Ink Corporation	4 19NEC002353	Active	182 m	map
KC Pharmaceuticals	4 19NEC003660	Active	186 m	map
GoldenHome Cabinetry West LLC	4 19NEC008198	Terminated	189 m	map
GoldenHome Cabinetry West LLC	4 19NEC008653	Active	189 m	map
Flair Electronics	4 19NEC003636	Active	189 m	map
Comp Turbo Technology Incorporated	4 19NEC004020	Active	193 m	map
Yellow Freight Sys	4 19I003133	Terminated	194 m	map
Island Environmental Service	4 19I020398	Terminated	194 m	map
PSC Environmental Servies of Pomona LP	4 19I022695	Active	194 m	map
Robertsons Pomona Plant	4 19I005072	Active	197 m	map
United Metal Spinning & Machining	4 19NEC004048	Active	201 m	map
Alto System Inc	4 19NEC009030	Terminated	202 m	map
Hayward Industries Incorporated	4 19NEC003513	Terminated	212 m	map
VEFO Inc	4 19I021190	Active	215 m	map
Structural Composites Industries LLC	4 19I016947	Terminated	217 m	map
B2Sign Inc	4 19I030745	Active	227 m	map
Performance Engineered Products Inc	4 19NEC004026	Terminated	230 m	map
Performance Engineered Products	4 19NEC007345	Active	230 m	map
Vertis inc	4 19I018756	Terminated	230 m	map
California Tool and Cutter	4 19NEC004125	Active	234 m	map

127 facilities, nearest first. Page 1 of 3: 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.