CA1010021
CA
No open health violations

City of Mendota

Groundwater · Local · 643 QUINCE STREET

Overall Risk Level

Low Concern

No Concern
Low
Moderate
High
Critical

Minor detections below regulatory limits. Routine monitoring adequate.

Utility Overview

Population Served

11,404

Source Type

Groundwater

Ownership

Local

PWSID

CA1010021

Detected Contaminants

CCR data ingestion in progress

Contaminant detection levels from Consumer Confidence Reports are being parsed and linked to utilities. Check back soon, or view the official report directly from the EPA links below.

View on EPA ECHO

Violation History

Sourced from EPA SDWIS. Health-based violations mean a contaminant exceeded the legal limit. Monitoring/Reporting violations mean required test results were not submitted to EPA — not necessarily that the water is unsafe.

MRE. coli

Resolved
Jan 2016 – Mar 2018Monitoring/Reporting failure

MCL ViolationNitrate

Resolved
Sep 2013 – Mar 2018Health-based

MCL ViolationNitrate

Resolved
May 2013 – Mar 2018Health-based

MRE. coli

Resolved
Jan 2011 – Mar 2018Monitoring/Reporting failure

MRNitrate

Resolved
Jan 2010 – Mar 2018Monitoring/Reporting failure

MRNitrate

Resolved
Mar 2005 – Mar 2018Monitoring/Reporting failure

MRNitrate

Resolved
Nov 2004 – Mar 2018Monitoring/Reporting failure

MRNitrate

Resolved
Oct 2004 – Mar 2018Monitoring/Reporting failure

MRNitrate

Resolved
Sep 2004 – Mar 2018Monitoring/Reporting failure

MRLead

Resolved
Jan 2004 – Aug 2005Monitoring/Reporting failure

Related Pages

Data Sources & Provenance

All data on this page is sourced from official U.S. government or public datasets.

EPA ECHO — Water System & Compliance ReportPWSID CA1010021View source
EPA CCR — Consumer Confidence ReportsView source
Last updated: 2026-04-15
High Confidence
Annual refresh cycle

At a Glance

PWSIDCA1010021
StateCalifornia
Risk Levellow
Population Served11,404
Open Health Violations0

Service area match is likely but not guaranteed. Your water bill is the most reliable way to confirm your provider.