Public water system record
Los Molinos Comm. Services Dist.
Serves Los Molinos, Tehama County, CA · 1,450 people served
Federal records show 11 health-based violations and 2 monitoring/reporting issues for Los Molinos Comm. Services Dist. in the last ten years. The most serious issue in this window was a resolved Arsenic violation.
System profile
- Health-based violations, last 10 years
- 11
- Resolved
- 11
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- Los Molinos Comm. Services Dist. draws water from 4 wells.
- Highest measured level in the last 10 years: Arsenic, 12 µg/L, federal limit 10 µg/L (1.2 times the limit), 2018.
- Most recent formal enforcement: compliance order (no penalty) by California, December 2016.
- Record on file since 1979, with 40 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 388 service lines.
Check whether Los Molinos Comm. Services Dist. 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 |
|---|---|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Jan 1, 2020 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Oct 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Jul 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Apr 1, 2019 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Jul 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 12 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
330 | Apr 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Jan 1, 2018 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Oct 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Apr 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Jan 1, 2017 | Resolved | No |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
330 | Oct 1, 2016 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jun 1, 2011 | Active |
Full record since 1979
EPA's records for Los Molinos Comm. Services Dist. go back to 1979. Before October 19, 2016 they list 40 health-based violations (40 resolved) and 4 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 6 | 1 |
| 2000s | 9 | 0 |
| 2010 to October 18, 2016 | 25 | 2 |
| October 19, 2016 to 2019 | 9 | 0 |
| 2020s | 1 | 0 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Resolved.
Show all 40 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Oct 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Jul 1, 2016 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Oct 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 11.5 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11.5 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 11 µg/L, federal limit 10 µg/L (1.1 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 12 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
Apr 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.13 mg/L, federal limit 0.01 mg/L (13 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 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 12 µg/L, federal limit 10 µg/L (1.2 times the limit)
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0113 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0115 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0116 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0129 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0121 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0121 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0126 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jan 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0118 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jul 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0121 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Apr 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0119 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0114 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0111 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0114 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0114 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0112 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Oct 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0112 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jul 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0112 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Apr 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.0112 mg/L, federal limit 0.01 mg/L (1.1 times the limit)
|
Jan 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1996 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1992 | Resolved |
Enforcement actions
California regulators took 4 formal enforcement actions against Los Molinos Comm. Services Dist. between 2009 and 2016. The most recent was a compliance order (no penalty) in December 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 9, 2016 | California | Compliance order (no penalty) | 1 violation: Total Trihalomethanes (TTHMs) |
| Sep 11, 2015 | California | Compliance order (no penalty) | 14 violations (14 health-based): Arsenic |
| Oct 18, 2010 | California | Compliance order (no penalty) | 3 violations (3 health-based): Arsenic |
| Jan 2, 2009 | California | Compliance order (no penalty) | 29 violations (29 health-based): Arsenic |
What the violations mean
Arsenic
11 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
Los Molinos Comm. Services Dist. draws water from 4 wells.
Annual water quality report
Los Molinos Comm. Services Dist. 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