Public water system record
East Three Rivers Mutual Water Corp
Serves Three Rivers, Tulare County, CA · 40 people served
Federal records show 1 health-based violation and 7 monitoring/reporting issues for East Three Rivers Mutual Water Corp in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 0
- Unresolved
- 1
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- East Three Rivers Mutual Water Corp draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, November 2025.
- Record on file since 2015, with 1 health-based violation before October 19, 2016.
Check whether East Three Rivers Mutual Water Corp 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Active | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 |
Active
Enforcement action in place
|
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Nov 1, 2024 | Resolved |
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2024 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2016 | Resolved |
Full record since 2015
EPA's records for East Three Rivers Mutual Water Corp go back to 2015. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2010 to October 18, 2016 | 1 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 5 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2015, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2015 | Resolved |
Enforcement actions
California regulators took 6 formal enforcement actions against East Three Rivers Mutual Water Corp between 2015 and 2025. The most recent was a compliance order (no penalty) in November 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 3, 2025 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
| Jan 22, 2025 | California | Compliance order (no penalty) | 2 violations: Revised Total Coliform Rule |
| Nov 25, 2024 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Mar 8, 2019 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Feb 6, 2017 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
| Dec 28, 2015 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
East Three Rivers Mutual Water Corp draws water from 1 well.
Annual water quality report
East Three Rivers Mutual Water Corp 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 East Three Rivers Mutual Water Corp 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