Public water system record
Monrovia-City, Water Dept.
Serves Monrovia, Los Angeles County, CA · 37,931 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Monrovia-City, Water Dept. 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
- 1
Key facts
- Monrovia-City, Water Dept. draws water from 5 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, May 2023.
- Lead pipe inventory: 0 lead and 0 unknown out of 9,447 service lines.
Check whether Monrovia-City, Water Dept. 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 |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
May 1, 2023 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Monrovia-City, Water Dept. in 2023. The most recent was a compliance order (no penalty) in May 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 16, 2023 | California | Compliance order (no penalty) | 1 violation: Nitrate |
Where the water comes from
Monrovia-City, Water Dept. draws water from 5 wells. It also has emergency connections to Metropolitan Water Dist. of So. Cal. and Cal-Am Water Company - Duarte.
Emergency or part-time connections to
- Metropolitan Water Dist. of So. Cal. La Verne, CA
- Cal-Am Water Company - Duarte Rosemead, CA
Annual water quality report
Monrovia-City, Water Dept. 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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