Public water system record
Del Rio Mutual
Serves El Monte, Los Angeles County, CA · 700 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for Del Rio Mutual 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
- 1
Key facts
- Del Rio Mutual draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, May 2013.
- Record on file since 1980, with 0 health-based violations before October 19, 2016.
Check whether Del Rio Mutual 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 |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
Full record since 1980
EPA's records for Del Rio Mutual go back to 1980. Before October 19, 2016 they list no health-based violations and 11 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 5 |
| 1990s | 0 | 1 |
| 2010 to October 18, 2016 | 0 | 5 |
| 2020s | 1 | 1 |
Enforcement actions
California regulators took 3 formal enforcement actions against Del Rio Mutual between 2011 and 2013. The most recent was a compliance order (no penalty) in May 2013.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 30, 2013 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Dec 5, 2012 | California | Compliance order (no penalty) | 2 violations: Total Coliform |
| Dec 19, 2011 | California | Compliance order (no penalty) | 1 violation: 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
Del Rio Mutual draws water from 1 well.
Annual water quality report
Del Rio Mutual 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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