ST. HELENA, CA · Napa County
ADVENTIST HEALTH - ST. HELENA HOSPITAL Water System
Consumer Confidence Report status
ADVENTIST HEALTH - ST. HELENA HOSPITAL must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for ADVENTIST HEALTH - ST. HELENA HOSPITAL.
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)
- CA2800625
- System type
- Community Water System
- Population served
- 817
- Service connections
- 196
- Ownership
- privately owned
- Water source
- groundwater (wells)
ADVENTIST HEALTH - ST. HELENA HOSPITAL is one of 728 community water systems in California in the 501 to 3,300 people size category, serving 817 people from groundwater.
As of August 1, 2026, its federal record holds 3 entries between 1980 and 1996, all of which EPA lists as closed. Nothing has been added since 1996.
Of the 3, 2 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 Radionuclides and Revised Rad Rule and the Total Coliform Rules.
Violation history
Maximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 1996 – September 30, 1996
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1981 – September 30, 1982
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 30, 1980 – October 29, 1981
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 |
|---|---|---|---|---|
| September 1, 1996 – September 30, 1996 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| October 1, 1981 – September 30, 1982 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| October 30, 1980 – October 29, 1981 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- November 22, 1996State Formal Notice of Violation issued7 linked violations
Common questions
Is ADVENTIST HEALTH - ST. HELENA HOSPITAL required to publish a Consumer Confidence Report?
- Yes. ADVENTIST HEALTH - ST. HELENA HOSPITAL is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is ADVENTIST HEALTH - ST. HELENA HOSPITAL’s next Consumer Confidence Report due?
- ADVENTIST HEALTH - ST. HELENA HOSPITAL’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ADVENTIST HEALTH - ST. HELENA HOSPITAL have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ADVENTIST HEALTH - ST. HELENA HOSPITAL.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
REMBOLD, MATTHEW
707-963-6492
ST. HELENA, CA 94574