Tap Truth EPA drinking water records, in plain English

Public water system record

Prairie Water Company

Serves an area of Cascade County, MT that includes Great Falls · 1,000 people served

Federal records show no health-based violations and 10 monitoring/reporting issues for Prairie Water Company in the last ten years. At least one of these issues remains unresolved.

  • MT0003539
  • GREAT FALLS
  • MT
  • 1,000 served

System profile

Source water Purchased surface water
ZIP 59404
EPA system ID MT0003539

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
10

Key facts

  • Prairie Water Company buys its water from City of Great Falls.
  • Most recent formal enforcement: compliance order with a penalty by Montana, September 2007.
  • Record on file since 1992, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 4 service lines.

Check whether Prairie Water Company serves your address

Address suggestions by Mapbox

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, 2024 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2024 Active
Consumer Confidence Rule
OTHER
 Jul 1, 2024 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2023 Active
Revised Total Coliform Rule
Monitoring violation
 Sep 1, 2023 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2023 Active
Lead and Copper Rule
Monitoring and reporting
 Dec 30, 2021 Resolved
Lead and Copper Rule
Monitoring and reporting
 Oct 1, 2018 Resolved
Consumer Confidence Rule
OTHER
 Oct 1, 2011 Resolved
Consumer Confidence Rule
OTHER
 Jul 1, 2011 Resolved

Full record since 1992

EPA's records for Prairie Water Company go back to 1992. Before October 19, 2016 they list no health-based violations and 28 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 0 2
2000s 0 17
2010 to October 18, 2016 0 9
October 19, 2016 to 2019 0 1
2020s 0 7

Enforcement actions

Montana regulators took 2 formal enforcement actions against Prairie Water Company between 2006 and 2007. The most recent was a compliance order with a penalty in September 2007.

Date By Action Violations covered
Sep 4, 2007 Montana Compliance order with a penalty 14 violations: Lead and Copper Rule
Oct 16, 2006 Montana Compliance order with a penalty 1 violation: Consumer Confidence Rule

Where the water comes from

Prairie Water Company buys its water from City of Great Falls. It lists no wells or intakes of its own. 16 smaller public systems such as schools, businesses or campgrounds buy water from Prairie Water Company.

Buys water from

Annual water quality report

Prairie 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.

Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.

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.

Certified drinking water labs by state EPA guidance for private wells