Public water system record

City of Mendota

Serves Mendota, Fresno County, CA · 11,404 people served

Federal records show no health-based violations and 1 monitoring/reporting issue for City of Mendota in the last ten years.

  • CA1010021
  • MENDOTA
  • CA
  • 11,404 served

System profile

Source water Groundwater
ZIP 93640
EPA system ID CA1010021

Verify this system on EPA ECHO →

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

Key facts

  • City of Mendota draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).
  • Most recent formal enforcement: compliance order (no penalty) by California, March 2017.
  • Record on file since 2000, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 2,260 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.

None since October 2016.

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Nitrate
Monitoring and reporting
Jan 1, 2016 Resolved

Full record since 2000

EPA's records for City of Mendota go back to 2000. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 10 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2000s 1 7
2010 to October 18, 2016 2 3

Most recent health-based violation before October 19, 2016: Total Coliform, began September 2013, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Sep 1, 2013 Resolved
Total Coliform
Contaminant limit exceeded
May 1, 2013 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Jan 1, 2001 Resolved

Enforcement actions

California regulators took 4 formal enforcement actions against City of Mendota between 2001 and 2017. The most recent was a compliance order (no penalty) in March 2017.

Date By Action Violations covered
Mar 21, 2017 California Compliance order (no penalty) 1 violation: Nitrate
Dec 31, 2013 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Aug 14, 2013 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform
Mar 7, 2001 California Compliance order (no penalty) 1 violation (1 health-based): Total Coliform

Where the water comes from

City of Mendota draws water from 4 wells (1 of them for emergency, seasonal or other part-time use).

Annual water quality report

City of Mendota 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

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.