Unnamed Creek, Zone 6 Line G subwatershed (Alameda County, tributary to Laguna Creek)

2026 303(d) list Waterbody ID CAR2052000020210704059748 River & Stream Region 2 · San Francisco Bay

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 2 Appendix A decisions; Category 5: a TMDL is required; What a listing means
Pollutants and stressors: 2 pollutants in 2 Appendix A categories; Other Cause (1) · Total Toxics (1); Listing decisions
TMDL information Evidence: State-published: 2 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: 0 report it as their receiving water Evidence: identification corroborated; 90 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: 2
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

Loading the waterbody shape…

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
Benthic Community Effects	Other Cause	5	List on 303(d) list (TMDL required list)	Revised	A Source Unknown	154143

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 (being addressed by USEPA approved TMDL)	Revised	Other Urban Runoff Surface Runoff	144700

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Benthic Community Effects	5A	—	Low	—	—
Toxicity	5B	San Francisco Bay Urban Creeks Diazinon	—	2007-05-21	—

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

Agua Caliente Creek-Frontal San Francisco Bay Estuaries 180500040701

Overlapping the waterbody's shape Evidence: spatial

Agua Caliente Creek-Frontal San Francisco Bay Estuaries 180500040701 also published
Plummer Creek-Frontal San Francisco Bay Estuaries 180500040702

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
Microwave Technology Inc	2 01NEC001612	Terminated	610 m	map
Quanta Computer USA	2 01NEC005399	Terminated	615 m	map
Microwave Tech	2 01I009650	Terminated	631 m	map
MedPlast Fremont	2 01I025870	Terminated	643 m	map
Viant Fremont	2 01I029090	Active	644 m	map
Commercial Casework Inc	2 01IN605456	NOI Required	648 m	map
Commercial Casework Inc	2 01NEC005639	Active	648 m	map
Bodycote Thermal Processing	2 01I019367	Active	655 m	map
Genoa Corp	2 01I016922	Terminated	659 m	map
Measurement Specialties Inc	2 01NEC001827	Terminated	668 m	map
Lam Research Corporation Building CA08	2 01NEC003707	Active	673 m	map
Sanmina Plant 5	2 01I010788	Terminated	733 m	map
Jabil	2 01I029292	Terminated	756 m	map
Amazon com Services LLC DXC5	2 01I028836	Active	763 m	map
Eic Corp	2 01I013301	Terminated	766 m	map
Quicksil Inc	2 01I020382	Terminated	766 m	map
Penguin Computing	2 01NEC008267	Active	770 m	map
Heraeus Quartztech Inc	2 01I016531	Terminated	824 m	map
AER Worldwide	2 01I019867	Terminated	857 m	map
AER Worldwide	2 01NEC004785	Terminated	857 m	map
TR Manufacturing LLC	2 01NEC000856	Terminated	858 m	map
Ahern Rentals Inc	2 01I024019	Terminated	859 m	map
BEMA Electronic Manufacturing Incorporated	2 01NEC000690	Active	867 m	map
Greenfield Environmental	2 01I011289	Terminated	871 m	map
Falcon Disposal Ser	2 01I012062	Terminated	871 m	map
Nw Trans Ser	2 01I005028	Terminated	893 m	map
Motor Cargo	2 01I009476	Terminated	893 m	map
Lam Research CA 5	2 01NEC010227	Active	911 m	map
Lam Research	2 01I022235	Active	927 m	map
Magnum Microwave Corp	2 01I010034	Terminated	928 m	map
NeoPhotonics Corporation	2 01I024934	Terminated	930 m	map
Recycling Zone Fremont	2 01I028247	Terminated	936 m	map
WeDriveU	2 01I029842	Terminated	946 m	map
Recycling Services Alliance Inc Fremont	2 01I022454	Terminated	950 m	map
Fremont Service Center	2 01I023671	Terminated	951 m	map
Fremont Service Center	2 01NEC000093	Terminated	951 m	map
BluGlass Inc	2 01I029879	Active	958 m	map
WeDriveU	2 01I031362	Active	960 m	map
Celestica Precision Machining LTD	2 01NEC001177	Terminated	967 m	map
Jabil	2 01I027470	Terminated	996 m	map

90 facilities, nearest first. Page 2 of 2: previous

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.