Public water system record
Century Mobile Home Park
Serves an area of San Joaquin County, CA · 50 people served
Federal records show 33 health-based violations and no monitoring/reporting issues for Century Mobile Home Park in the last ten years. The most serious issue in this window was a Arsenic violation that EPA lists as archived, not resolved.
System profile
Source water
Groundwater
ZIP
95367
EPA system ID
CA3900579
- Health-based violations, last 10 years
- 33
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 33
- Any acute record
- No
- Monitoring issues, last 10 years
- 0
Key facts
- Century Mobile Home Park draws water from 1 well.
- Highest measured level in the last 10 years: Arsenic, 15.25 µg/L, federal limit 10 µg/L (1.5 times the limit), 2019.
- Most recent formal enforcement: compliance order (no penalty) by California, January 2025.
- Record on file since 1980, with 33 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 21 service lines.
Check whether Century Mobile Home Park 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 13 µg/L, federal limit 10 µg/L (1.3 times the limit)
|
330 | Oct 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jul 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Apr 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Oct 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jul 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Apr 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Oct 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.525 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.525 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Oct 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Apr 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2022 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Oct 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jul 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.25 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Apr 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.25 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2021 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.75 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jul 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.5 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Apr 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.75 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.25 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Oct 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.75 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Jul 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.75 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Apr 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 15.25 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.75 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Oct 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.75 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
330 | Jul 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14.25 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Apr 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Jan 1, 2018 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 13.75 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
330 | Oct 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
330 | Jul 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.015 mg/L, federal limit 0.01 mg/L (1.5 times the limit)
|
330 | Apr 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
330 | Jan 1, 2017 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
330 | Oct 1, 2016 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Full record since 1980
EPA's records for Century Mobile Home Park go back to 1980. Before October 19, 2016 they list 33 health-based violations (1 resolved, 32 archived by EPA without a recorded fix) and 8 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 4 |
| 1990s | 0 | 1 |
| 2000s | 8 | 2 |
| 2010 to October 18, 2016 | 25 | 1 |
| October 19, 2016 to 2019 | 12 | 0 |
| 2020s | 20 | 0 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2016, Archived.
Show all 33 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.014 mg/L, federal limit 0.01 mg/L (1.4 times the limit)
|
Oct 1, 2016 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
Jul 1, 2016 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 14 µg/L, federal limit 10 µg/L (1.4 times the limit)
|
Apr 1, 2016 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2016 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2015 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jul 1, 2015 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Apr 1, 2015 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2015 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2014 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jul 1, 2014 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Apr 1, 2014 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2014 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2013 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jul 1, 2013 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Apr 1, 2013 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2013 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2012 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jul 1, 2012 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Apr 1, 2012 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2012 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Sep 1, 2011 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Mar 1, 2011 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Sep 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jun 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Mar 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Dec 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jun 1, 2009 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Dec 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Sep 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jun 1, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 12, 2008 | Archived |
|
Arsenic
Contaminant limit exceeded
|
Jan 1, 2008 | Archived |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 2006 | Resolved |
Enforcement actions
California regulators took 33 formal enforcement actions against Century Mobile Home Park between 2006 and 2025. The most recent was a compliance order (no penalty) in January 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jan 29, 2025 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Oct 28, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 15, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 9, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 10, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| May 4, 2023 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 12, 2023 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 29, 2022 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 20, 2022 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 26, 2022 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Oct 27, 2021 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jun 9, 2021 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 12, 2021 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Sep 10, 2020 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 10, 2020 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 10, 2020 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 1, 2020 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Dec 31, 2019 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Aug 5, 2019 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 10, 2019 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 1, 2019 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Oct 10, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 10, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Apr 10, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jan 10, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Nov 28, 2017 | California | Compliance order (no penalty) | 4 violations (4 health-based): Arsenic |
| Oct 10, 2016 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 10, 2016 | California | Compliance order (no penalty) | 1 violation (1 health-based): Arsenic |
| Jul 1, 2012 | California | Signed compliance agreement | 18 violations (18 health-based): Arsenic |
| Apr 1, 2012 | California | Signed compliance agreement | 1 violation (1 health-based): Arsenic |
| Jan 2, 2012 | California | Signed compliance agreement | 1 violation (1 health-based): Arsenic |
| May 23, 2008 | California | Signed compliance agreement | 2 violations (2 health-based): Nitrate, Arsenic |
| Aug 15, 2006 | California | Signed compliance agreement | 12 violations (12 health-based): Arsenic |
What the violations mean
Arsenic
33 incidentsArsenic exceeded the federal limit
Long-term arsenic exposure is linked to cancer and cardiovascular effects
Where the water comes from
Century Mobile Home Park draws water from 1 well.
Annual water quality report
Century Mobile Home Park 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 Century Mobile Home Park 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