Napa River, tidal

2026 303(d) list Waterbody ID CAR2065004020160701060277 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; Nutrients (1) · Pathogens (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; 84 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

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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 (1 decision)

Nutrients: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Nutrients	Nutrients	5	Do Not Delist from 303(d) list (TMDL required list)	Revised	Agriculture Onsite Wastewater Systems (Septic Tanks)	151296

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	149125

TMDL information Evidence: State-published

TMDL information published for this waterbody
Pollutant	TMDL requirement status	TMDL project	Priority	USEPA approval of TMDL	Expected attainment
Indicator Bacteria	5B	Napa River Pathogens	—	2006-11-08	—
Nutrients	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

Lower Napa River 180500020205
Tulucay Creek-Frontal San Pablo Bay Estuaries 180500020402
Novato Creek-Frontal San Pablo Bay Estuaries 180500020801

Overlapping the waterbody's shape Evidence: spatial

Lower Napa River 180500020205 also published
Tulucay Creek-Frontal San Pablo Bay Estuaries 180500020402 also published
Novato Creek-Frontal San Pablo Bay Estuaries 180500020801 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
Spelletich Family Winery	2 28NEC008276	Active	698 m	map
UPS Napa CANAP	2 28I002015	Active	719 m	map
Paddleshack	2 28NEC011370	Active	719 m	map
Jacuzzi Family Vineyards LLC	2 48I021279	Terminated	732 m	map
Jacuzzi Family Vineyards LLC	2 48NEC003706	Active	732 m	map
Fior Di Sole	2 28I025233	Active	738 m	map
Toasted	2 28NEC011574	Active	741 m	map
Eco Auto Dismantling	2 28I023746	Active	746 m	map
My Local Drivers	2 28NNA001762	No Action Required	756 m	map
Morenita Foods	2 28NEC011559	Active	789 m	map
Top It Off Bottling	2 28NEC008671	Active	793 m	map
Brians Salvage Junk	2 28I011702	Active	798 m	map
Jessup Cellars Holding Company LLC	2 28NEC001141	Terminated	803 m	map
Jessup Cellars Holding Company LLC	2 28NEC008846	Active	803 m	map
ASL Print FX	2 28NEC007955	Active	855 m	map
Sinegal Estate Winery	2 28I028250	Terminated	858 m	map
Marinco	2 28I014179	Terminated	858 m	map
Crosby Roamann LLC	2 28NNA001063	NEC Required	873 m	map
PROFILE Business Records Management	2 28NNA003213	No Action Required	879 m	map
Grape Culture	2 28NEC009047	Active	882 m	map
AvinoDos Wines	2 28NEC008451	Active	897 m	map
Rosalynd Winery	2 28NEC000313	Terminated	911 m	map
J Moss Wines LLC	2 28NEC001774	Active	911 m	map
Vineyard Luxury Limousine	2 28NNA001299	Undetermined	913 m	map
Highway Safety Prod	2 28I011987	Terminated	929 m	map
Highway Safety Prod	2 28I012586	Terminated	929 m	map
Highway Safety Products	2 28I020145	Terminated	929 m	map
AMR Napa	2 28NNA000689	No Action Required	930 m	map
American Medical Response West	2 28NNA001557	Undetermined	930 m	map
Enterprise Wine Company	2 28NNA002795	No Action Required	956 m	map
Blackbird Vineyards	2 28NEC003575	Active	957 m	map
ATC	2 28NEC008470	Active	965 m	map
ATC	2 28NEC009012	Active	965 m	map
Blackbird Vineyards	2 28NEC004446	Terminated	970 m	map

84 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.