Public water system record

Laurel Municipal Water System

Serves an area of Yellowstone County, MT that includes Laurel · 6,339 people served

Federal records show 1 health-based violation and 3 monitoring/reporting issues for Laurel Municipal Water System in the last ten years. The most serious issue in this window was a resolved Interim Enhanced Surface Water Treatment Rule violation.

  • MT0000270
  • LAUREL
  • MT
  • 6,339 served

System profile

Source water Surface water
ZIP 59044
EPA system ID MT0000270

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
3

Key facts

  • Laurel Municipal Water System draws water from 2 surface water intakes.
  • Record on file since 1993, with 4 health-based violations before October 19, 2016.
  • Lead pipe inventory: 5 lead and 1,605 unknown out of 2,222 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
Interim Enhanced Surface Water Treatment Rule
Treatment technique failure
120 Jun 1, 2022 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, 2022 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2021 Resolved
Consumer Confidence Rule
OTHER
Jul 1, 2018 Resolved

Full record since 1993

EPA's records for Laurel Municipal Water System go back to 1993. Before October 19, 2016 they list 4 health-based violations (4 resolved) and 55 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
1990s 4 25
2000s 0 30
October 19, 2016 to 2019 0 1
2020s 1 2

Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began April 1999, Resolved.

Show all 4 health-based violations before October 19, 2016
Contaminant Start date Status
Surface Water Treatment Rule
Treatment technique failure
Apr 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Mar 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 1999 Resolved
Surface Water Treatment Rule
Treatment technique failure
Jan 1, 1998 Resolved

What the violations mean

Interim Enhanced Surface Water Treatment Rule

1 incident

The system did not meet a filtration or treatment requirement for surface water

Inadequate treatment of surface water can let pathogens such as Cryptosporidium and Giardia through

Where the water comes from

Laurel Municipal Water System draws water from 2 surface water intakes. 2 other community water systems and 3 smaller public systems such as schools, businesses or campgrounds buy water from Laurel Municipal Water System.

Community systems that buy water from it

Annual water quality report

Laurel Municipal Water System 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.