San Jose Creek Reach 1 (SG Confluence to Temple St.)

2026 303(d) list Waterbody ID CAR4053100019980918090950 River & Stream Region 4 · Los Angeles

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 5 Appendix A decisions; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 5 pollutants in 5 Appendix A categories; Other Cause (1) · Pathogens (1) · SALINITY/TOTAL DISSOLVED SOLIDS/CHLORIDES/SULFATES (1) · Total Toxics (1) · Toxic Inorganics (1); Listing decisions
TMDL information Evidence: State-published: 5 decisions with a TMDL requirement status; 1 name a TMDL project; Status codes as published: 5A, 5B; 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; 621 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: 5
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.

Other Cause (1 decision)

Other Cause: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
pH	Other Cause	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	A Source Unknown	138745

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 (being addressed with USEPA approved TMDL)	Revised	A Source Unknown	150327

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	138752

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)	Original	A Source Unknown	100261

Toxic Inorganics (1 decision)

Toxic Inorganics: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Chlorine	Toxic Inorganics	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	138718

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Chlorine	5A	—	Low	—	—
Indicator Bacteria	5B	San Gabriel River Coliform (45)	—	2016-06-14	—
pH	5A	—	Low	—	—
Total Dissolved Solids	5A	—	Low	—	—
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
Lower San Jose Creek 180701060502
Coyote Creek-San Gabriel River 180701060606

Overlapping the waterbody's shape Evidence: spatial

Upper San Jose Creek 180701060501 also published
Lower San Jose Creek 180701060502 also published
Coyote Creek-San Gabriel River 180701060606 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
Unical Aviation	4 19I026555	Terminated	601 m	map
NU PACK INC	4 19NEC005182	Terminated	606 m	map
Richmond Screw Anchor Co	4 19I012567	Terminated	610 m	map
Cacique Inc	4 19I001425	Terminated	610 m	map
QTG CDSD Diamond Bar	4 19I026614	Terminated	614 m	map
EMA Plastics Mfg Co	4 19NEC004619	Terminated	616 m	map
Hi Speed Printing Inc.	4 19IN604509	No Action Required	619 m	map
Hi Speed Printing	4 19NEC004803	Active	619 m	map
Westcoast Plush Workshop Ltd	4 19NEC009786	Terminated	620 m	map
Acorn Engineering Co	4 19I002113	Active	621 m	map
Figurify3D	4 19NEC014340	Active	621 m	map
Condor Aerospace Corp	4 19NEC011371	Terminated	622 m	map
Purex Pool Systems Inc	4 19I000288	Terminated	624 m	map
American Steel Masters Inc	4 19NEC004588	Terminated	625 m	map
American Steel Maters Inc	4 19NEC007582	Active	625 m	map
E W Smith Chemical Co	4 19I009759	Terminated	626 m	map
Racing Power Company	4 19NEC004264	Active	628 m	map
Bragel International Inc	4 19NEC002114	Terminated	634 m	map
Bragel International Inc	4 19NEC005162	Active	634 m	map
Structural Composites	4 19I004332	Terminated	635 m	map
RH Peterson Co	4 19I027400	Active	639 m	map
Zipper Depot Inc	4 19IN606446	NOI Required	645 m	map
City of Industry DC	4 19I019029	Active	649 m	map
Ling Ya Inc	4 19NEC012195	Active	650 m	map
United Polymers Inc	4 19IN602037	Undetermined	651 m	map
Teknor Apex Maclin Div	4 19I001300	Active	654 m	map
CRAIG FURNITURE REPAIR & REFINISHING	4 19NEC006623	Terminated	658 m	map
TIUS 3PL INC	4 19NEC015517	Active	660 m	map
Vantec Pacific Incorporated	4 19NEC000188	Active	664 m	map
Novolex Bagcraft Inc	4 19I028397	Terminated	666 m	map
Novolex Bagcraft Inc	4 19I031549	Active	666 m	map
Road America Inc	4 19NEC005809	Active	667 m	map
MARRS Printing Inc	4 19I030749	Active	668 m	map
Lisi Aerospace	4 19NEC007932	Active	672 m	map
Marrs Printing Inc	4 19NEC004328	Terminated	674 m	map
Acorn Engineering Co	4 19I026420	Terminated	674 m	map
Bocchi Laboratories Inc	4 19I018591	Terminated	677 m	map
Lisi Aerospace	4 19I025684	Terminated	678 m	map
CA Recycling Inc	4 19NNA002611	No Action Required	679 m	map
DOUBLE R TRADING INC	4 19I027157	Active	681 m	map
El Monte Non Ferrous Foundry Inc	4 19I020132	Terminated	687 m	map
ALATUS AEROSYSTEMS WAL	4 19I021759	Terminated	691 m	map
Mega Automotive Inc.	4 19NEC000039	Terminated	692 m	map
chrome hearts llc	4 19NEC005026	Active	695 m	map
Envision CMYK	4 19NEC000946	Terminated	696 m	map
Whiplash 20	4 19NEC012657	Active	696 m	map
Anchor Swan	4 19I009639	Terminated	700 m	map
Trend Manor Furniture	4 19I025552	Active	700 m	map
Applied Tech Div	4 19I003413	Terminated	702 m	map
Altium Packaging	4 19I010371	Active	705 m	map

621 facilities, nearest first. Page 10 of 13: 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.