Public water system record
MP Mine Operations LLC
Serves an area of San Bernardino County, CA · 626 people served
Federal records show 1 health-based violation and 1 monitoring/reporting issue for MP Mine Operations LLC 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
- MP Mine Operations LLC draws water from 4 wells.
- Record on file since 1980, with 2 health-based violations before October 19, 2016.
Check whether MP Mine Operations LLC 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 MP Mine Operations LLC go back to 1980. Before October 19, 2016 they list 2 health-based violations (2 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 2 | 2 |
| 1990s | 0 | 1 |
| 2020s | 1 | 1 |
Most recent health-based violation before October 19, 2016: Fluoride, began October 1980, Archived.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Fluoride
Contaminant limit exceeded
|
Oct 30, 1980 | Archived |
|
Fluoride
Contaminant limit exceeded
|
Jul 30, 1980 | Archived |
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
MP Mine Operations LLC draws water from 4 wells.
Annual water quality report
MP Mine Operations LLC 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