Public water system record
Valenzuela Water System
Serves an area of San Benito County, CA · 55 people served
Federal records show 2 health-based violations and 3 monitoring/reporting issues for Valenzuela Water System in the last ten years. The most serious issue in this window was a Nitrate-Nitrite violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 2
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 2
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 3
Key facts
- Valenzuela Water System draws water from 1 well.
- Most recent formal enforcement: compliance order (no penalty) by California, July 2025.
- Record on file since 1981, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 16 service lines.
Check whether Valenzuela Water System 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-Nitrite
Contaminant limit exceeded
|
330 | May 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Apr 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Jun 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2020 | Resolved |
Full record since 1981
EPA's records for Valenzuela Water System go back to 1981. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 34 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 1 |
| 1990s | 2 | 14 |
| 2000s | 3 | 19 |
| 2010 to October 18, 2016 | 2 | 0 |
| October 19, 2016 to 2019 | 2 | 0 |
| 2020s | 0 | 3 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began January 2011, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 2011 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 2010 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Oct 1, 2007 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 2007 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1998 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
May 1, 1991 | Resolved |
Enforcement actions
California regulators took 13 formal enforcement actions against Valenzuela Water System between 1998 and 2025. The most recent was a compliance order (no penalty) in July 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 8, 2025 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Aug 22, 2024 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Apr 24, 2020 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Jun 21, 2018 | California | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate-Nitrite |
| Mar 30, 2011 | California | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate |
| Feb 10, 2010 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
| Nov 8, 2007 | California | Compliance order (no penalty) | 3 violations (2 health-based): Consumer Confidence Rule, Nitrate |
| Sep 7, 2006 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jan 24, 2003 | California | Compliance order (no penalty) | 1 violation: Consumer Confidence Rule |
| Feb 14, 2001 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Nov 21, 2000 | California | Compliance order (no penalty) | 4 violations: Asbestos, Nitrate, Arsenic, Benzene |
| Oct 25, 2000 | California | Compliance order (no penalty) | 3 violations: Total Coliform |
| Jul 13, 1998 | California | Administrative penalty | 1 violation (1 health-based): Total Coliform |
What the violations mean
Nitrate-Nitrite
2 incidentsTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Valenzuela Water System draws water from 1 well.
Annual water quality report
Valenzuela Water System 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Valenzuela Water System for a copy.
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