Public water system · CA2800040
ActiveMondavi Farm Worker Center
At a glance
Mondavi Farm Worker Center (PWSID CA2800040) is an active community water system in Napa County, California. It reports serving 66 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
66
Service connections
3
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mondavi Farm Worker Center compare with other water systems in Napa County?
By EPA's size categories, Mondavi Farm Worker Center is a very small system (500 people or fewer). Napa County has 188 active public water systems. Its population served is well below the county average of 861 people per system, and accounts for less than 0.1% of the 161,950 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Mondavi Farm Worker Center is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Mondavi Farm Worker Center?
EPA lists Mondavi Farm Worker Center as owned by a local government. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 15 of the 188 active systems in Napa County (8%) are also owned by a local government.
Does Mondavi Farm Worker Center have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for Mondavi Farm Worker Center. For the latest compliance status, check EPA ECHO for current compliance history.
Mondavi Farm Worker Center: frequently asked questions
Who runs Mondavi Farm Worker Center?
Mondavi Farm Worker Center (PWSID CA2800040) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Mondavi Farm Worker Center serve?
Mondavi Farm Worker Center reports serving 66 people through 3 service connections in Napa County, California.
Where does Mondavi Farm Worker Center get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Mondavi Farm Worker Center have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Mondavi Farm Worker Center's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Mondavi Farm Worker Center's water quality report?
As a community water system, Mondavi Farm Worker Center must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
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 |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Mondavi Farm Worker Center, PWSID CA2800040, California”, https://aquacensus.com/water-systems/california/mondavi-farm-worker-center-ca2800040 (data as of October 1, 2026).