Napa Creek subwatershed (Napa County, tributary to Napa River-nontidal)

2026 303(d) list Waterbody ID CAR2065008020000320131804 River & Stream Region 2 · San Francisco Bay

At a glance

2026 listing Evidence: State-published: On the 2026 303(d) list · 1 Appendix A decision; Category 4a: addressed by a USEPA-approved TMDL; What a listing means
Pollutants and stressors: 1 pollutant in 1 Appendix A category; Pathogens (1); Listing decisions
TMDL information Evidence: State-published: 1 decision with a TMDL requirement status; 1 name a TMDL project; Status codes as published: 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; 34 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 4a.
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: 4a (addressed by a USEPA-approved TMDL)
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.

Pathogens (1 decision)

Pathogens: Appendix A decisions
Pollutant	Pollutant category	Category	Final listing decision	Decision status	Sources	Decision ID
Indicator Bacteria	Pathogens	4a	List on 303(d) list (being addressed by USEPA approved TMDL)	Revised	A Source Unknown	149110

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	—

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
Carneros Creek-Frontal San Pablo Bay Estuaries 180500020501
Novato Creek-Frontal San Pablo Bay Estuaries 180500020801

Overlapping the waterbody's shape Evidence: spatial

Lower Napa River 180500020205 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
Spottswoode Winery Inc	2 28NEC001896	Active	51 m	map
Napa Valley Distillery	2 28NEC010325	Terminated	199 m	map
Main office	2 28NEC009305	Active	244 m	map
Napa Valley Limousine Services	2 28NNA001311	No Action Required	293 m	map
Crane Family Vineyards	2 28NEC001592	Active	297 m	map
Reid Family Vineyards	2 28NEC001572	Active	307 m	map
Tannery Bend Beerworks	2 28NEC012093	Active	478 m	map
Kollar Chocolates LLC	2 28NEC012985	Active	481 m	map
NAPA VALLEY WINE TRAIN	2 28I028976	Active	500 m	map
NAPA VALLEY WINE TRAIN	2 28IN604889	Terminated	500 m	map
Fontanella Wines LLC	2 28I030261	Active	521 m	map
Fontanella Wines LLC	2 28NEC001787	Terminated	521 m	map
Napa Kombucha Co	2 28NEC007853	Terminated	524 m	map
Storagepro of Napa	2 28NEC010888	Active	547 m	map
STUDIO ROEPER	2 28NEC008480	Active	552 m	map
StorQuest Napa Jackson	2 28NNA002243	No Action Required	559 m	map
Marciano Estate	2 28NEC015795	Active	567 m	map
Paddleshack	2 28NEC011370	Active	577 m	map
Tomra Pacific Napa Center	2 28I018711	Terminated	595 m	map
Napa Service Center	2 28I023679	Terminated	606 m	map
Jackson Street Wine Warehouse LLC	2 28NEC008437	Active	635 m	map
Triton WaterJet and Design Inc	2 28NEC008610	Terminated	635 m	map
Jackson Street Fulfillment LLC	2 28NEC008673	Active	635 m	map
Ohm Coffee Roasters	2 28NEC012053	Active	635 m	map
Office	2 28NNA002101	No Action Required	674 m	map
Napa Garbage Co	2 28I001208	Terminated	690 m	map
Napa Valley Distillery	2 28NEC010323	Active	703 m	map
Allweld Metal Fabrication Inc	2 28NEC005174	Active	708 m	map
United Rentals Branch No 545	2 28I019721	Terminated	717 m	map
NCTPA	2 28I003491	Terminated	831 m	map
Napa Self Storage	2 28NNA002327	No Action Required	843 m	map
Mystic Bruin Company LLC	2 28NNA002007	NEC Required	850 m	map
Blue Front Recycling	2 28NEC005977	Terminated	982 m	map
Blue Front Recycling	2 28NNA003442	No Action Required	994 m	map

34 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.