Public water system record
Cal Am - Oakhurst
Serves Oakhurst, Madera County, CA · 3,693 people served
Federal records show 20 health-based violations and no monitoring/reporting issues for Cal Am - Oakhurst in the last ten years. The most serious issue in this window was a resolved Combined Uranium violation.
System profile
- Health-based violations, last 10 years
- 20
- Resolved
- 20
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Cal Am - Oakhurst draws water from 20 wells.
- Highest measured level in the last 10 years: Arsenic, 17 µg/L, federal limit 10 µg/L (1.7 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by California, June 2015.
- Record on file since 1994, with 76 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,265 service lines.
Check whether Cal Am - Oakhurst 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 |
|---|---|---|---|---|
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jan 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
330 | Jan 1, 2019 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Oct 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 17 µg/L, federal limit 10 µg/L (1.7 times the limit)
|
330 | Oct 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Apr 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 15.5 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
330 | Jan 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jan 1, 2018 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Oct 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 17 µg/L, federal limit 10 µg/L (1.7 times the limit)
|
330 | Oct 1, 2017 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jul 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 17 µg/L, federal limit 10 µg/L (1.7 times the limit)
|
330 | Jul 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
330 | Apr 1, 2017 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Apr 1, 2017 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jan 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
|
330 | Jan 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
|
330 | Oct 1, 2016 | Resolved | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Oct 1, 2016 | Resolved | No |
Full record since 1994
EPA's records for Cal Am - Oakhurst go back to 1994. Before October 19, 2016 they list 76 health-based violations (76 resolved) and 3 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 0 |
| 2000s | 17 | 3 |
| 2010 to October 18, 2016 | 56 | 0 |
| October 19, 2016 to 2019 | 18 | 0 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Resolved.
Show all 76 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2016 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2016 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 12.5 µg/L, federal limit 10 µg/L (1.3 times the limit)
|
Apr 1, 2016 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2016 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 12.5 µg/L, federal limit 10 µg/L (1.3 times the limit)
|
Jan 1, 2016 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.046 mg/L, federal limit 0.01 mg/L (4.6 times the limit)
|
Oct 1, 2015 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Jul 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.046 mg/L, federal limit 0.01 mg/L (4.6 times the limit)
|
Apr 1, 2015 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.046 mg/L, federal limit 0.01 mg/L (4.6 times the limit)
|
Jan 1, 2015 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.031 mg/L, federal limit 0.01 mg/L (3.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2014 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.031 mg/L, federal limit 0.01 mg/L (3.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.031 mg/L, federal limit 0.01 mg/L (3.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2014 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.031 mg/L, federal limit 0.01 mg/L (3.1 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 |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2013 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2013 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Apr 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2013 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2013 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0122 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.01275 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jul 1, 2012 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Apr 1, 2012 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2012 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2012 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Oct 1, 2011 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.011 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0213 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Apr 1, 2011 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Apr 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0213 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Jan 1, 2011 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Jan 1, 2011 | Resolved |
|
Combined Uranium
Contaminant limit exceeded
|
Oct 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.051 mg/L, federal limit 0.01 mg/L (5.1 times the limit)
|
Oct 1, 2010 | Resolved |
26 older violations are not listed here. EPA ECHO has the complete list.
Enforcement actions
California regulators took 5 formal enforcement actions against Cal Am - Oakhurst between 1997 and 2015, filed as 6 records in EPA's data. The most recent was a compliance order (no penalty) in June 2015.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jun 12, 2015 | California | Compliance order (no penalty) | 3 violations (3 health-based): Arsenic |
| Jan 26, 2009 | California | Compliance order (no penalty) | 43 violations (43 health-based): Arsenic |
| Dec 31, 2007 | California | Compliance order (no penalty) | 1 violation: Lead and Copper Rule |
| Jan 8, 1999 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Sep 8, 1997 | California | Compliance order (no penalty) | 48 violations (48 health-based): Combined Uranium |
What the violations mean
Combined Uranium
10 incidentsTest results for Combined Uranium were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Arsenic
10 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
Cal Am - Oakhurst draws water from 20 wells. 1 other community water system buys water from Cal Am - Oakhurst. 1 other public water system has an emergency connection to Cal Am - Oakhurst.
Community systems that buy water from it
- Broadview Terrace Mutual Water Company Oakhurst, CA
Annual water quality report
Cal Am - Oakhurst 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