Public water system record
Valley State Prison
Serves Chowchilla, Madera County, CA · 3,173 people served
Federal records show no health-based violations and no monitoring or reporting issues for Valley State Prison 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
- Valley State Prison draws water from 3 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, December 2014.
- Record on file since 2005, with 19 health-based violations before October 20, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 93 service lines.
Check whether Valley State Prison 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 2005
EPA's records for Valley State Prison go back to 2005. Before October 20, 2016 they list 19 health-based violations (19 resolved) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 4 | 3 |
| 2010 to October 19, 2016 | 15 | 5 |
Most recent health-based violation before October 20, 2016: Arsenic, began July 2015, Resolved.
Show all 19 health-based violations before October 20, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 13 µg/L, federal limit 10 µg/L (1.3 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 12 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Apr 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0109 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0107 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0108 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011175 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011025 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011775 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011025 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2009 | Resolved |
Enforcement actions
California regulators took 5 formal enforcement actions against Valley State Prison between 2009 and 2014. The most recent was a compliance order (no penalty) in December 2014.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 1, 2014 | California | Compliance order (no penalty) | 4 violations (4 health-based): Arsenic |
| Jun 5, 2013 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Jan 10, 2013 | California | Compliance order (no penalty) | 7 violations (7 health-based): Arsenic |
| Feb 23, 2010 | California | Compliance order (no penalty) | 2 violations (2 health-based): Arsenic |
| Mar 27, 2009 | California | Compliance order (no penalty) | 9 violations (7 health-based): Arsenic |
Where the water comes from
Valley State Prison draws water from 3 wells.
Annual water quality report
Valley State Prison 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.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
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