Public water system record
Pomona - City, Water Dept.
Serves Pomona, Los Angeles County, CA · 151,713 people served
Federal records show no health-based violations and no monitoring or reporting issues for Pomona - 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
- 0
Key facts
- Pomona - City, Water Dept. draws water from 22 wells and 1 surface water intake.
- Most recent formal enforcement: compliance order (no penalty) by California, October 1995.
- Record on file since 1993, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 29,768 service lines.
Check whether Pomona - 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, and no monitoring or reporting violations either.
Full record since 1993
EPA's records for Pomona - City, Water Dept. go back to 1993. Before October 19, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began June 1993, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1993 | Resolved |
Enforcement actions
California regulators took 3 formal enforcement actions against Pomona - City, Water Dept. between 1993 and 1995. The most recent was a compliance order (no penalty) in October 1995.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Oct 13, 1995 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Dec 8, 1993 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
| Jul 16, 1993 | California | Compliance order (no penalty) | 1 violation (1 health-based): Surface Water Treatment Rule |
Where the water comes from
Pomona - City, Water Dept. draws water from 22 wells and 1 surface water intake. It also buys water from Metropolitan Water Dist. of So. Cal. and Three Valleys MWD. 1 other community water system buys water from Pomona - City, Water Dept.
Buys water from
- Metropolitan Water Dist. of So. Cal. La Verne, CA
- Three Valleys MWD Claremont, CA
Community systems that buy water from it
- Suburban Water Systems-San Jose Covina, CA
Annual water quality report
Pomona - 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