Alameda Creek

2026 303(d) list Waterbody ID CAR2043005119990218134634 River & Stream Region 2 · San Francisco Bay

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 4 Appendix A categories; Nutrients (2) · Other Cause (1) · Pesticides (1) · Total Toxics (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 2 · San Francisco Bay; River & Stream · Map
Industrial stormwater facilities: 30 report it as their receiving water Evidence: identification corroborated; 23 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: 2 — San Francisco Bay

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.

Nutrients (2 decisions)

Nutrients: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Ammonia	Nutrients	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	150833
Oxygen, Dissolved	Nutrients	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	141670

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	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	154194

Pesticides (1 decision)

Pesticides: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Diazinon	Pesticides	5	Do Not Delist from 303(d) list (being addressed with USEPA approved TMDL)	Revised	Other Urban Runoff Surface Runoff	141660

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)	Revised	A Source Unknown	141676

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	5A	—	Low	—	—
Benthic Community Effects	5A	—	Low	—	—
Diazinon	5B	San Francisco Bay Urban Creeks Diazinon	—	2007-05-21	—
Oxygen, Dissolved	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

San Antonio Reservoir-San Antonio Creek 180500040601
Upper Alameda Creek 180500040602
Lower Alameda Creek 180500040603
Plummer Creek-Frontal San Francisco Bay Estuaries 180500040702

Overlapping the waterbody's shape Evidence: spatial

Arroyo de la Laguna 180500040503
Upper Alameda Creek 180500040602 also published
Lower Alameda Creek 180500040603 also published
Plummer Creek-Frontal San Francisco Bay Estuaries 180500040702 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
Niles Canyon Railway	2 01I024012	Terminated	53 m	map
GGRM at Niles Canyon Railway	2 01I024013	Terminated	53 m	map
Von Euw & Nunes truck yard	2 01I026454	Terminated	196 m	map
Von Euw & Nunes truck yard	2 01NEC003228	Active	196 m	map
Mozzetti Trucking Inc	2 01I010512	Terminated	237 m	map
Von Euw & L J Nunes Trucking Inc	2 01I010461	Terminated	238 m	map
Henkel Surface Technologies	2 01I012309	Terminated	275 m	map
Sunol Plant	2 01I027680	Terminated	285 m	map
Mission Valley Rock	2 01I012002	Terminated	327 m	map
Penske Logistics Union City	2 01I027495	Terminated	762 m	map
MPP Union City	2 01I006301	Active	856 m	map
Blommer Chocolate	2 01I014629	Active	966 m	map
Pac Western Extruded Plast	2 01I000272	Terminated	1.1 km	map
Crown Cork & Seal Co	2 01I001018	Terminated	1.2 km	map
Sterling Foods Caravan Foods II	2 01I028986	Active	1.3 km	map
GCM Medical and OEM Inc	2 01I023839	Terminated	1.3 km	map
GCM Medical and OEM Inc	2 01I029960	Active	1.3 km	map
GCM Medical and OEM Inc	2 01NEC000121	Terminated	1.3 km	map
SA Recycling	2 01I021112	Terminated	1.3 km	map
GCM Medical and OEM Inc	2 01I026054	Active	1.5 km	map
IRCA Union City Facility	2 01I030206	Active	1.5 km	map
Nestle Beverage Co	2 01I002364	Terminated	1.6 km	map
BCI Coca Cola Bottling Company of LA	2 01I006455	Terminated	1.6 km	map
Reyes Coca Cola Bottling LLC	2 01I027434	Terminated	1.6 km	map
Air Liquide America Speciality Gases LLC	2 01I000388	Terminated	1.8 km	map
Phibro Tech Inc	2 01I001623	Terminated	1.9 km	map
Conklin Conklin Inc	2 01I009671	Active	2.1 km	map
Aryzta Newark	2 01I024902	Terminated	2.6 km	map
Aspire Bakeries Holdco LLC	2 01I029493	Active	2.6 km	map
Full Bloom Baking Co	2 01I021296	Terminated	2.6 km	map

Receiving water reported by facility — waterbody identification corroborated by geographic evidence. 30 facilities.

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
Niles Canyon Railway	2 01I024012	Terminated	53 m	map
GGRM at Niles Canyon Railway	2 01I024013	Terminated	53 m	map
Niles Canyon Railway	2 01NNA002176	No Action Required	53 m	map
Von Euw & Nunes truck yard	2 01I026454	Terminated	196 m	map
Von Euw & Nunes truck yard	2 01NEC003228	Active	196 m	map
Mozzetti Trucking Inc	2 01I010512	Terminated	236 m	map
Von Euw & L J Nunes Trucking Inc	2 01I010461	Terminated	238 m	map
Henkel Surface Technologies	2 01I012309	Terminated	275 m	map
Sunol Plant	2 01I027680	Terminated	285 m	map
Dba Western Strategic Material	2 01I009607	Terminated	316 m	map
Mission Valley Rock	2 01I012002	Terminated	327 m	map
US Gypsum Co	2 01I014807	Terminated	421 m	map
Public Storage	2 01NNA001723	No Action Required	518 m	map
Fuji Trucolor	2 01I009199	Terminated	706 m	map
Fed Ex	2 01I005953	Terminated	710 m	map
Penske Logistics Union City	2 01I027495	Terminated	762 m	map
HECO Pacific Manufacturing	2 01I029580	Active	816 m	map
HECO Pacific Manufacturing	2 01IN605331	Terminated	816 m	map
US Cold Storage	2 01I009427	Terminated	827 m	map
MPP Union City	2 01I006301	Active	856 m	map
PTR Manufacturing Inc	2 01NEC005990	Active	946 m	map
Early Trans Ser	2 01I012897	Terminated	958 m	map
Blommer Chocolate	2 01I014629	Active	966 m	map

23 facilities, nearest first.

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.