Public water system record

Williams Mutual Water Company

Serves Poplar-Cotton Center, Tulare County, CA · 165 people served

Federal records show 1 health-based violation and 3 monitoring/reporting issues for Williams Mutual Water Company in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.

  • CA5400718
  • PORTERVILLE
  • CA
  • 165 served

System profile

Source water Groundwater
ZIP 93258
EPA system ID CA5400718

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
3

Key facts

  • Williams Mutual Water Company draws water from 1 well.
  • Most recent formal enforcement: compliance order (no penalty) by California, June 2018.
  • Record on file since 1980, with 0 health-based violations before October 19, 2016.

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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
Revised Total Coliform Rule
Monitoring violation
May 1, 2018 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2016 Resolved

Full record since 1980

EPA's records for Williams Mutual Water Company go back to 1980. Before October 19, 2016 they list no health-based violations and 19 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 0 2
1990s 0 1
2000s 0 10
2010 to October 18, 2016 0 6
October 19, 2016 to 2019 0 1
2020s 1 1

Enforcement actions

California regulators took 4 formal enforcement actions against Williams Mutual Water Company between 2011 and 2018. The most recent was a compliance order (no penalty) in June 2018.

Date By Action Violations covered
Jun 22, 2018 California Compliance order (no penalty) 1 violation: Revised Total Coliform Rule
Feb 6, 2017 California Compliance order (no penalty) 1 violation: Consumer Confidence Rule
Feb 18, 2016 California Compliance order (no penalty) 1 violation: Nitrate-Nitrite
Sep 29, 2011 California Compliance order with a penalty 1 violation: Consumer Confidence Rule

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

Williams Mutual Water Company draws water from 1 well.

Annual water quality report

Williams Mutual Water Company 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 Williams Mutual Water Company 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.