Public water system record
Wilshire Heights Mutual Water Company
Serves an area of Sonoma County, CA · 70 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Wilshire Heights 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
- Wilshire Heights Mutual Water Company draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, March 2022.
- Record on file since 1980, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 42 service lines.
Check whether Wilshire Heights 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
|
Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1980
EPA's records for Wilshire Heights Mutual Water Company go back to 1980. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 6 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 4 |
| 1990s | 1 | 1 |
| 2000s | 0 | 1 |
| 2010 to October 18, 2016 | 3 | 0 |
| October 19, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform (acute), began May 2012, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform (acute)
Contaminant limit exceeded
|
May 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2011 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Dec 1, 2010 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1996 | Resolved |
Enforcement actions
California regulators took 5 formal enforcement actions against Wilshire Heights Mutual Water Company between 2000 and 2022. The most recent was a compliance order (no penalty) in March 2022.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Mar 23, 2022 | California | Compliance order (no penalty) | 2 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs) |
| Jun 29, 2012 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jan 25, 2012 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Feb 9, 2011 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Apr 24, 2000 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
Where the water comes from
Wilshire Heights Mutual Water Company draws water from 1 well.
Annual water quality report
Wilshire Heights 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 Wilshire Heights 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