NAPA, CA · Napa County
ESPINOZA WATER SYSTEM Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 15, 2022. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in Napa County, CA.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace California’s official records. Always confirm current status with California before making decisions based on this information.
System facts
- System ID (PWSID)
- CA2801020
- System type
- Community Water System
- Population served
- 30
- Service connections
- 11
- Ownership
- privately owned
- Water source
- groundwater (wells)
ESPINOZA WATER SYSTEM is one of 3,951 community water systems in California in the 500 or fewer people size category, formerly serving 30 people from groundwater.
EPA's federal records list this system as inactive in 2022; the record below is historical.
As of August 1, 2026, its federal record holds 12 entries between 2000 and 2013, all of which EPA lists as closed. Nothing has been added since 2013.
Of the 12, 10 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules and the Consumer Confidence Rule.
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 2013 – February 28, 2013
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 2013 – January 31, 2013
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2011 – March 14, 2018
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2009 – April 30, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 2009 – March 31, 2009
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 2008 – March 31, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 2008 – January 31, 2008
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 2006 – July 31, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 2006 – March 31, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2004 – April 30, 2004
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 2004 – April 30, 2004
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 2000 – February 29, 2000
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| February 1, 2013 – February 28, 2013 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2013 – January 31, 2013 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2011 – March 14, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2009 – April 30, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| March 1, 2009 – March 31, 2009 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| March 1, 2008 – March 31, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2008 – January 31, 2008 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2006 – July 31, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| March 1, 2006 – March 31, 2006 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2004 – April 30, 2004 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 2004 – April 30, 2004 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| February 1, 2000 – February 29, 2000 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 29, 2012State Violation/Reminder Notice2 linked violations
- May 12, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- May 12, 2009State Violation/Reminder Notice2 linked violations
- April 13, 2009State Violation/Reminder Notice1 linked violation
- April 13, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- June 16, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- April 15, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- February 11, 2008State Violation/Reminder Notice1 linked violation
- February 11, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
Last known contact on file (system is inactive)
ESPINOZA, CYNTHIA
707-226-8953
NAPA, CA 94558