AZ0411128
AZ
No open health violations

Epcor - San Tan

Groundwater · Private · 968 E. Hunt Highway

Overall Risk Level

No Concerns Detected

No Concern
Low
Moderate
High
Critical

Water meets all safety standards with no detected exceedances.

No open health violations on record. This utility has no active EPA violations involving contaminants exceeding legal limits. Always verify with your utility's Consumer Confidence Report for annual test results.

Utility Overview

Population Served

87,435

Source Type

Groundwater

Ownership

Private

PWSID

AZ0411128

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

Showing 25 of 52 — view all on EPA ECHO ↗

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.

Other — Nitrate

Resolved
Jul 2003 – Jan 2004Monitoring/Reporting failure

Other — Nitrate

Resolved
Jul 2002 – Jan 2004Monitoring/Reporting failure

Other — Nitrate

Resolved
Jul 2004 – Dec 2004Monitoring/Reporting failure

Monitoring & Reporting — Lead

Resolved
Oct 2002 – Dec 2006Monitoring/Reporting failure

Other — Nitrate

Resolved
Jul 2006 – Dec 2006Monitoring/Reporting failure

Other — Nitrate

Resolved
Jul 2007 – Jun 2008Monitoring/Reporting failure

Monitoring & Reporting — Cadmium

Resolved
Oct 2015 – Mar 2016Monitoring/Reporting failure

MCL Violation — E. coli

Resolved
Jan 2017 – Apr 2017Health-based

MCL Violation — E. coli

Resolved
Jan 2016 – Aug 2017Health-based

Monitoring & Reporting — Total Trihalomethanes (TTHMs)

Resolved
Jun 2017 – Nov 2017Monitoring/Reporting failure

Monitoring & Reporting — Haloacetic Acids (HAA5)

Resolved
Jun 2017 – Nov 2017Monitoring/Reporting failure

Monitoring & Reporting — E. coli

Resolved
Jan 2018 – Apr 2018Monitoring/Reporting failure

Monitoring & Reporting — E. coli

Resolved
Jul 2018 – Oct 2018Monitoring/Reporting failure

Monitoring & Reporting — Haloacetic Acids (HAA5)

Resolved
Dec 2018 – Apr 2019Monitoring/Reporting failure

Monitoring & Reporting — Total Trihalomethanes (TTHMs)

Resolved
Dec 2018 – Apr 2019Monitoring/Reporting failure

Monitoring & Reporting — Total Trihalomethanes (TTHMs)

Resolved
Sep 2018 – Apr 2019Monitoring/Reporting failure

Monitoring & Reporting — Haloacetic Acids (HAA5)

Resolved
Sep 2018 – Apr 2019Monitoring/Reporting failure

Monitoring & Reporting — E. coli

Resolved
Apr 2019 – Jul 2019Monitoring/Reporting failure

7 additional monitoring/reporting failures

Required test submissions not filed with EPA — no contaminant data recorded. These are administrative failures, not health violations.

Filtration Recommendations

Based on the overall risk level, these treatment methods are most relevant for residents.

UV Purification

Ultraviolet (UV) water purifiers use germicidal UV-C light to inactivate bacteria, viruses, and protozoa by damaging their DNA.

BacteriaVirusesProtozoa

Related Pages

Arizona State Overview

All utilities in AZ

Data Sources & Provenance

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

EPA ECHO — Water System & Compliance Report— PWSID AZ0411128View source
EPA CCR — Consumer Confidence ReportsView source
Last updated: 2026-04-15
High Confidence
Annual refresh cycle

At a Glance

PWSIDAZ0411128
StateArizona
Risk Levelsafe
Population Served87,435
Open Health Violations0

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

Data Sources

EPA ECHO Facility Report EPA CCR Search