Public water system record
La Verne, City WD
Serves La Verne, Los Angeles County, CA · 31,334 people served
Federal records show 1 health-based violation and no monitoring/reporting issues for La Verne, City WD in the last ten years. The most serious issue in this window was a resolved Nitrate violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 0
Key facts
- La Verne, City WD draws water from 8 wells.
- Highest measured level in the last 10 years: Nitrate, 11 mg/L, federal limit 10 mg/L (1.1 times the limit), 2017.
- Most recent formal enforcement: compliance order (no penalty) by California, September 2017.
- Record on file since 1984, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 7,976 service lines.
Check whether La Verne, City WD 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 |
|---|---|---|---|---|
|
Nitrate
Contaminant limit exceeded
Measured 11 mg/L, federal limit 10 mg/L (1.1 times the limit)
|
330 | Jul 1, 2017 | Resolved | Yes |
Full record since 1984
EPA's records for La Verne, City WD go back to 1984. Before October 19, 2016 they list 4 health-based violations (3 resolved, 1 archived by EPA without a recorded fix) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 1 | 0 |
| 1990s | 1 | 0 |
| 2010 to October 18, 2016 | 2 | 0 |
| October 19, 2016 to 2019 | 1 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began February 2011, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Feb 1, 2011 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Feb 1, 2011 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1998 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1984 | Archived |
Enforcement actions
California regulators took 2 formal enforcement actions against La Verne, City WD between 2011 and 2017. The most recent was a compliance order (no penalty) in September 2017.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 25, 2017 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Mar 25, 2011 | California | Compliance order (no penalty) | 2 violations (2 health-based): Total Coliform |
What the violations mean
Nitrate
1 incidentNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
Where the water comes from
La Verne, City WD draws water from 8 wells. It also buys water from Three Valleys MWD. It also has an emergency connection to Metropolitan Water Dist. of So. Cal.
Buys water from
- Three Valleys MWD Claremont, CA
Emergency or part-time connections to
- Metropolitan Water Dist. of So. Cal. La Verne, CA
Annual water quality report
La Verne, City WD 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