Public water system record
West Valley Water District
Serves Rialto, Fontana, Bloomington and 1 more place, San Bernardino County, CA · 104,498 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for West Valley Water District 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
- West Valley Water District draws water from 17 wells and 2 surface water intakes (1 of them for emergency, seasonal or other part-time use).
- Record on file since 1987, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 25,174 service lines.
Check whether West Valley Water District 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2012 | Resolved |
Full record since 1987
EPA's records for West Valley Water District go back to 1987. Before October 19, 2016 they list 4 health-based violations (4 archived by EPA without a recorded fix) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 4 | 0 |
| 2010 to October 18, 2016 | 0 | 3 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began June 1987, Archived.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Jun 1, 1987 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1987 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 1987 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Mar 1, 1987 | Archived |
Where the water comes from
West Valley Water District draws water from 17 wells and 2 surface water intakes (1 of them for emergency, seasonal or other part-time use). It also buys water from San Bernardino Valley WD and City of Rialto. 1 other community water system buys water from West Valley Water District. 1 other public water system has an emergency connection to West Valley Water District.
Buys water from
- San Bernardino Valley WD San Bernardino, CA
- City of Rialto Rialto, CA
Community systems that buy water from it
- City of Rialto Rialto, CA
Annual water quality report
West Valley Water District 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