Public water system record

Western Mobile Home Park

Serves an area of Sonoma County, CA · 178 people served

Federal records show 1 health-based violation and 2 monitoring/reporting issues for Western Mobile Home Park in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • CA4900791
  • STOCKTON
  • CA
  • 178 served

System profile

Source water Groundwater
ZIP 95219
EPA system ID CA4900791

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
0
Unresolved
1
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Western Mobile Home Park draws water from 2 wells.
  • Most recent formal enforcement: compliance order (no penalty) by California, August 2014.
  • Record on file since 1980, with 1 health-based violation before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 74 service lines.

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Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
350 Oct 17, 2024 Active No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
LEAD AND COPPER RULE REVISIONS
RPT
Oct 17, 2024 Active
Public Notice
OTHER
Aug 27, 2012 Resolved

Full record since 1980

EPA's records for Western Mobile Home Park go back to 1980. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 21 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 4
1990s 0 1
2000s 0 10
2010 to October 18, 2016 1 6
2020s 1 1

Most recent health-based violation before October 19, 2016: Trichloroethylene, began July 2013, Resolved.

Show the health-based violation before October 19, 2016
Contaminant Start date Status
Trichloroethylene
Contaminant limit exceeded
Measured 0.0061 mg/L, federal limit 0.005 mg/L (1.2 times the limit)
Jul 1, 2013 Resolved

Enforcement actions

California regulators took 11 formal enforcement actions against Western Mobile Home Park between 2006 and 2014. The most recent was a compliance order (no penalty) in August 2014.

Date By Action Violations covered
Aug 27, 2014 California Compliance order (no penalty) 2 violations: cis-1,2-Dichloroethylene, Trichloroethylene
Dec 6, 2013 California Compliance order (no penalty) 1 violation (1 health-based): Trichloroethylene
Jun 11, 2013 California Compliance order (no penalty) 2 violations: cis-1,2-Dichloroethylene, Trichloroethylene
Aug 27, 2012 California Compliance order (no penalty) 1 violation: Public Notice
Sep 30, 2010 California Compliance order (no penalty) 1 violation: Nitrate
Jan 29, 2010 California Compliance order with a penalty 1 violation: Nitrate
Sep 24, 2009 California Compliance order (no penalty) 1 violation: Total Coliform
Dec 15, 2008 California Compliance order (no penalty) 1 violation: Nitrate
Oct 19, 2007 California Compliance order (no penalty) 1 violation: Nitrate
May 4, 2007 California Compliance order (no penalty) 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5)
Jan 20, 2006 California Compliance order (no penalty) 2 violations: Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)

What the violations mean

LEAD AND COPPER RULE REVISIONS

1 incident

The system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

Western Mobile Home Park draws water from 2 wells.

Annual water quality report

Western 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 Western 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.