Public water system record

Round Butte Water Company

Serves an area of Lake County, MT that includes Ronan · 400 people served

Federal records show no health-based violations and 3 monitoring/reporting issues for Round Butte Water Company in the last ten years.

  • MT0000320
  • RONAN
  • MT
  • 400 served

System profile

Source water Groundwater
ZIP 59864
EPA system ID MT0000320

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
3

Key facts

  • Round Butte Water Company draws water from 2 wells.
  • Record on file since 1994, with 5 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 166 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
Lead and Copper Rule
Monitoring and reporting
Dec 30, 2021 Resolved
Revised Total Coliform Rule
Monitoring violation
May 1, 2021 Resolved
E. coli
Monitoring and reporting
Apr 27, 2021 Resolved

Full record since 1994

EPA's records for Round Butte Water Company go back to 1994. Before October 19, 2016 they list 5 health-based violations (5 resolved) and 7 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 2 4
2000s 1 1
2010 to October 18, 2016 2 2
2020s 0 3

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

Show all 5 health-based violations before October 19, 2016
Contaminant Start date Status
Total Coliform
Contaminant limit exceeded
Apr 1, 2015 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 2014 Resolved
Total Coliform
Contaminant limit exceeded
Jun 1, 2005 Resolved
Total Coliform
Contaminant limit exceeded
Aug 1, 1995 Resolved
Total Coliform (acute)
Contaminant limit exceeded
Aug 1, 1995 Resolved

Where the water comes from

Round Butte Water Company draws water from 2 wells.

Annual water quality report

Round Butte Water Company 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 Round Butte Water Company 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.