Public water system record

Hildreth Subdivision No 3

On record as serving Dillon, Beaverhead County, MT · Serves 128 people

Federal records show 1 health-based violation and 8 monitoring/reporting issues for Hildreth Subdivision No 3 in the last ten years. The most serious issue in this window was a resolved Revised Total Coliform Rule violation.

  • MT0003968
  • DILLON
  • MT
  • 128 served

System profile

Source water Groundwater
ZIP 59725
EPA system ID MT0003968

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
Yes
Monitoring issues, last 10 years
8

Key facts

  • Hildreth Subdivision No 3 draws water from 2 wells.
  • Most recent formal enforcement: compliance order (no penalty) by Montana, September 2012.
  • Record on file since 1996, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 41 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
Revised Total Coliform Rule
Contaminant limit exceeded
110 Aug 1, 2021 Resolved Yes

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2024 Resolved
Consumer Confidence Rule
OTHER
Oct 1, 2023 Resolved
Lead and Copper Rule
Monitoring and reporting
Dec 30, 2021 Resolved
Asbestos
Monitoring and reporting
Jan 1, 2020 Resolved
Revised Total Coliform Rule
Monitoring violation
Dec 1, 2019 Resolved
Revised Total Coliform Rule
Monitoring violation
Feb 1, 2019 Resolved
Lead and Copper Rule
Monitoring and reporting
Oct 1, 2014 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2000 Active
Enforcement action in place

Full record since 1996

EPA's records for Hildreth Subdivision No 3 go back to 1996. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 63 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 47
2000s 0 11
2010 to October 18, 2016 4 5
October 19, 2016 to 2019 0 2
2020s 1 4

Most recent health-based violation before October 19, 2016: Total Coliform, began July 2015, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Jul 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Jul 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2012 Resolved
Total Coliform
Contaminant limit exceeded
May 1, 2012 Resolved

Enforcement actions

Montana regulators took 2 formal enforcement actions against Hildreth Subdivision No 3 between 2007 and 2012. The most recent was a compliance order (no penalty) in September 2012.

Date By Action Violations covered
Sep 26, 2012 Montana Compliance order (no penalty) 3 violations (3 health-based): Total Coliform
Feb 15, 2007 Montana Compliance order with a penalty 3 violations: Consumer Confidence Rule

What the violations mean

Revised Total Coliform Rule

1 incident

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

Hildreth Subdivision No 3 draws water from 2 wells.

Annual water quality report

Hildreth Subdivision No 3 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 Hildreth Subdivision No 3 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 Montana.