Public water system · CA2801016
ActiveHess Winery
Community water system in Napa County, California, drawing primarily on groundwater.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
250
Service connections
5
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
Violations & enforcement
| Began | Violation | Contaminant | Health-based | Status |
|---|---|---|---|---|
| 2025-07-01 | 52 | 5000 | No | Unaddressed |
| 2025-07-01 | 52 | 5000 | No | Addressed |
| 2024-10-17 | 4G | 5200 | No | Unaddressed |
| 2024-10-17 | 2E | 5200 | Yes | Unaddressed |
| 2016-05-01 | 3A | 8000 | No | Resolved |
| 2009-05-01 | 25 | 3100 | No | Resolved |
| 2006-01-01 | 23 | 3100 | No | Resolved |
| 2002-12-01 | 23 | 3100 | No | Archived |
| 2002-12-01 | 23 | 3100 | No | Resolved |
Hess Winery: frequently asked questions
Is Hess Winery's water safe to drink?
Hess Winery is an active community water system regulated under the Safe Drinking Water Act, overseen by the CA state drinking water program. EPA SDWA violation and enforcement records for this system are being added to AquaCensus from EPA ECHO; consult EPA ECHO or your annual Consumer Confidence Report for its current compliance status.
Who runs Hess Winery?
Hess Winery (PWSID CA2801016) is a private-owned community water system, regulated by the CA state drinking water program.
How many people does Hess Winery serve?
Hess Winery reports serving 250 people through 5 service connections in Napa County, California.
Where does Hess Winery get its water?
EPA SDWIS lists this system's primary water source as groundwater.
Other water systems in Napa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Napa, City of | Napa | 84,804 | Community | Surface water |
| American Canyon, City of | Napa | 21,437 | Community | Surface water |
| Phelps Vineyards | Napa | 19,412 | Non-transient non-community | Groundwater |
| Calistoga, City of | Napa | 5,610 | Community | Surface water |
| St. Helena, City of | Napa | 5,386 | Community | Surface water |
| Town of Yountville | Napa | 2,787 | Community | Purchased surface water |