Public water system record

Indian Hills Estates

Serves Winkelman and Dudleyville, Pinal County, AZ · 30 people served

Federal records show 6 health-based violations and 28 monitoring/reporting issues for Indian Hills Estates in the last ten years. The most serious issue in this window was a resolved Groundwater Rule violation.

  • AZ0411324
  • WINKELMAN
  • AZ
  • 30 served

System profile

Source water Groundwater
ZIP 85192
EPA system ID AZ0411324

Verify this system on EPA ECHO →

Health-based violations, last 10 years
6
Resolved
6
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
28

Key facts

  • Indian Hills Estates draws water from 1 well.
  • Record on file since 1980, with 5 health-based violations before October 20, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 250 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.

Contaminant Rule family Start date Status Acute
Groundwater Rule
Treatment technique failure
140 Feb 8, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Feb 8, 2024 Resolved No
Groundwater Rule
Treatment technique failure
140 Feb 8, 2024 Resolved No
Revised Total Coliform Rule
Treatment technique failure
110 Nov 17, 2021 Resolved No
Revised Total Coliform Rule
Treatment technique failure
110 Nov 11, 2020 Resolved No
Revised Total Coliform Rule
Treatment technique failure
110 Sep 18, 2020 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Revised Total Coliform Rule
RPT
Dec 1, 2025 Active
Consumer Confidence Rule
OTHER
Oct 2, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2025 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2025 Resolved
Revised Total Coliform Rule
RPT
Apr 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2025 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2025 Active
Revised Total Coliform Rule
RPT
Sep 1, 2024 Resolved
Revised Total Coliform Rule
RPT
Feb 1, 2024 Resolved
Consumer Confidence Rule
OTHER
Oct 2, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2023 Resolved
Revised Total Coliform Rule
RPT
Sep 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2023 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2023 Resolved
Consumer Confidence Rule
OTHER
Oct 2, 2022 Resolved
E. coli
Monitoring and reporting
Oct 1, 2022 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2022 Resolved
Public Notice
OTHER
May 26, 2022 Resolved
Revised Total Coliform Rule
OTHER
Oct 15, 2021 Resolved
Public Notice
OTHER
Jan 16, 2021 Resolved
Chlorine
Monitoring and reporting
Jan 1, 2021 Resolved
Lead and Copper Rule
Monitoring and reporting
Jan 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Oct 2, 2020 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2020 Resolved
Revised Total Coliform Rule
OTHER
May 1, 2019 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2018 Resolved
Lead and Copper Rule
Monitoring and reporting
Nov 3, 2017 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2017 Resolved

Full record since 1980

EPA's records for Indian Hills Estates go back to 1980. Before October 20, 2016 they list 5 health-based violations (5 archived by EPA without a recorded fix) and 54 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1980s 3 7
1990s 2 22
2000s 0 16
2010 to October 19, 2016 0 9
October 20, 2016 to 2019 0 4
2020s 6 24

Most recent health-based violation before October 20, 2016: Total Coliform, began December 1991, Archived.

Show all 5 health-based violations before October 20, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Dec 1, 1991 Archived
Total Coliform
Contaminant limit exceeded
Nov 1, 1991 Archived
Fluoride
Contaminant limit exceeded
Jan 1, 1988 Archived
Fluoride
Contaminant limit exceeded
Nov 16, 1983 Archived
Fluoride
Contaminant limit exceeded
Oct 21, 1980 Archived

What the violations mean

Groundwater Rule

3 incidents

The system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).

The utility had to notify customers about each of these violations.

Revised Total Coliform Rule

3 incidents

The system did not meet a requirement of the Revised Total Coliform Rule

Coliform and E. coli rules protect against bacteria in the distribution system

Where the water comes from

Indian Hills Estates draws water from 1 well.

Annual water quality report

Indian Hills Estates 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 Indian Hills Estates 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 Arizona.