Public water system record
Hilton Mutual Water Company
Serves an area of Sonoma County, CA · 100 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Hilton Mutual Water Company in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Hilton Mutual Water Company draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, August 2024.
- Record on file since 2006, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 16 service lines.
Check whether Hilton Mutual Water Company serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Sep 1, 2020 | Resolved |
Full record since 2006
EPA's records for Hilton Mutual Water Company go back to 2006. Before October 19, 2016 they list no health-based violations and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 3 |
| 2020s | 0 | 2 |
Enforcement actions
California regulators took 4 formal enforcement actions against Hilton Mutual Water Company between 2007 and 2024. The most recent was a compliance order (no penalty) in August 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 6, 2024 | California | Compliance order (no penalty) | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Jul 10, 2008 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Mar 30, 2007 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Feb 2, 2007 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
Where the water comes from
Hilton Mutual Water Company draws water from 1 well.
Annual water quality report
Hilton Mutual Water Company must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Hilton Mutual Water Company for a copy.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by California.
Certified drinking water labs by state EPA guidance for private wells