PlainEnviro

SIERRA MUTUAL WATER COMPANY

PWSID: CA5403110 · Porterville, CA · Serves 43 people

Health Violations

SIERRA MUTUAL WATER COMPANY has 66 health-based violations out of 66 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed.

Population Served
43
Total Violations
66
Health Violations
66
Source Type
Groundwater

SIERRA MUTUAL WATER COMPANY (PWSID CA5403110) is a cws water system drawing from a groundwater source, regulated by the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act. It serves approximately 43 people in Porterville, CA, and is subject to primacy enforcement by the California drinking-water program.

The system's federal compliance record contains 66 total violations, with 66 classified as health-based (MCL exceedances or treatment-technique failures). 1 distinct contaminant has been cited, including Nitrate. Recorded violations span 2009–2021.

A historical violation does not necessarily describe current water quality, systems must notify customers and remediate, and monitoring-type violations often reflect reporting lapses rather than contamination. The most authoritative real-time source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the California state drinking-water program's public portal.

System Details

EPA ID (PWSID)
CA5403110
System Type
CWS
Water Source
Groundwater
Location
Porterville, CA
Population Served
43
Health Violations
Yes (66)

What contaminants are in this water system?

Contaminant Violations Health-Based
Nitrate 66 66

Violation History (66)

Contaminant Health Date
Nitrate Yes Jul 1, 2021
Nitrate Yes Jul 1, 2021
Nitrate Yes Apr 1, 2021
Nitrate Yes Apr 1, 2021
Nitrate Yes Jan 1, 2021
Nitrate Yes Jan 1, 2021
Nitrate Yes Oct 1, 2020
Nitrate Yes Oct 1, 2020
Nitrate Yes Apr 1, 2020
Nitrate Yes Apr 1, 2020
Nitrate Yes Jan 1, 2020
Nitrate Yes Jan 1, 2020
Nitrate Yes Oct 1, 2019
Nitrate Yes Oct 1, 2019
Nitrate Yes Jul 1, 2019
Nitrate Yes Jul 1, 2019
Nitrate Yes Apr 1, 2019
Nitrate Yes Apr 1, 2019
Nitrate Yes Jan 1, 2019
Nitrate Yes Jan 1, 2019
Nitrate Yes Oct 1, 2018
Nitrate Yes Oct 1, 2018
Nitrate Yes Jul 1, 2018
Nitrate Yes Jul 1, 2018
Nitrate Yes Apr 1, 2018
Nitrate Yes Apr 1, 2018
Nitrate Yes Oct 1, 2017
Nitrate Yes Oct 1, 2017
Nitrate Yes Jul 1, 2017
Nitrate Yes Jul 1, 2017
Nitrate Yes Apr 1, 2017
Nitrate Yes Apr 1, 2017
Nitrate Yes Jan 1, 2017
Nitrate Yes Jan 1, 2017
Nitrate Yes Oct 1, 2016
Nitrate Yes Oct 1, 2016
Nitrate Yes Jul 1, 2016
Nitrate Yes Jul 1, 2016
Nitrate Yes Jan 1, 2016
Nitrate Yes Jan 1, 2016
Nitrate Yes Jan 1, 2014
Nitrate Yes Jan 1, 2014
Nitrate Yes Oct 1, 2013
Nitrate Yes Oct 1, 2013
Nitrate Yes Jul 1, 2013
Nitrate Yes Jul 1, 2013
Nitrate Yes Apr 1, 2013
Nitrate Yes Apr 1, 2013
Nitrate Yes Jan 1, 2013
Nitrate Yes Jan 1, 2013
Nitrate Yes Jul 1, 2011
Nitrate Yes Jul 1, 2011
Nitrate Yes Apr 1, 2011
Nitrate Yes Apr 1, 2011
Nitrate Yes Jan 1, 2011
Nitrate Yes Jan 1, 2011
Nitrate Yes Oct 1, 2010
Nitrate Yes Oct 1, 2010
Nitrate Yes Jul 1, 2010
Nitrate Yes Jul 1, 2010
Nitrate Yes Apr 1, 2010
Nitrate Yes Apr 1, 2010
Nitrate Yes Jan 1, 2010
Nitrate Yes Jan 1, 2010
Nitrate Yes Jan 1, 2009
Nitrate Yes Jan 1, 2009

Frequently Asked Questions

Is SIERRA MUTUAL WATER COMPANY water safe to drink?
SIERRA MUTUAL WATER COMPANY has 66 health-based violations out of 66 total. Health violations indicate contaminant levels exceeded EPA limits or required treatment was not followed. The system uses groundwater water as its source.
How many people does SIERRA MUTUAL WATER COMPANY serve?
SIERRA MUTUAL WATER COMPANY serves 43 people in Porterville, CA. It is classified as a CWS water system.
What violations does SIERRA MUTUAL WATER COMPANY have?
SIERRA MUTUAL WATER COMPANY has 66 total violations on record spanning 2009–2021. 66 are health-based violations involving contaminants exceeding EPA limits.
What contaminants have been found in SIERRA MUTUAL WATER COMPANY water?
Violations have been recorded for 1 contaminant. The most frequent: Nitrate.

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About This Data

Water system data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations that may pose a direct risk to public health. Violation records may span multiple years.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services U.S. Environmental Protection Agency, SDWIS Federal Reporting Services

Read our methodology - how this data is sourced, computed, and verified.

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