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Public water system record

Ncmrwa Tiber Service Area

On record as serving Liberty County, MT · Serves 200 people

Federal records show 15 health-based violations and 2 monitoring/reporting issues for Ncmrwa Tiber Service Area in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.

  • MT0004719
  • HELENA
  • MT
  • 200 served

System profile

Source water Purchased surface water
ZIP 59624
EPA system ID MT0004719

Verify this system on EPA ECHO →

Health-based violations, last 10 years
15
Resolved
15
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
2

Key facts

  • Ncmrwa Tiber Service Area buys its water from Tiber County Water District.
  • Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 94 µg/L, federal limit 60 µg/L (1.6 times the limit), 2020.
  • Most recent formal enforcement: compliance order (no penalty) by Montana, May 2020.
  • Record on file since 2015, with 0 health-based violations before October 19, 2016.
  • Lead pipe inventory: 0 lead and 0 unknown out of 3 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
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 61 µg/L, federal limit 60 µg/L (at or just above the limit)
 220 Jul 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.062 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Jan 1, 2024 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.069 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Oct 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.07 mg/L, federal limit 0.06 mg/L (1.2 times the limit)
 220 Jul 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.061 mg/L, federal limit 0.06 mg/L (at or just above the limit)
 220 Apr 1, 2023 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 70 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Apr 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 85 µg/L, federal limit 60 µg/L (1.4 times the limit)
 220 Jan 1, 2021 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 94 µg/L, federal limit 60 µg/L (1.6 times the limit)
 220 Oct 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 92.5 µg/L, federal limit 60 µg/L (1.5 times the limit)
 220 Jul 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 86 µg/L, federal limit 60 µg/L (1.4 times the limit)
 220 Apr 1, 2020 Resolved No
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 83 µg/L, federal limit 80 µg/L (at or just above the limit)
 220 Jan 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 90 µg/L, federal limit 60 µg/L (1.5 times the limit)
 220 Jan 1, 2020 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 79 µg/L, federal limit 60 µg/L (1.3 times the limit)
 220 Oct 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 70.8 µg/L, federal limit 60 µg/L (1.2 times the limit)
 220 Jul 1, 2019 Resolved No
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 65.8 µg/L, federal limit 60 µg/L (1.1 times the limit)
 220 Apr 1, 2019 Resolved No

Monitoring and reporting issues

Since October 2016

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

Issue Start date Status
Haloacetic Acids (HAA5)
Monitoring and reporting
 Jan 1, 2017 Resolved
Total Trihalomethanes (TTHMs)
Monitoring and reporting
 Jan 1, 2017 Resolved

Full record since 2015

EPA's records for Ncmrwa Tiber Service Area go back to 2015. Before October 19, 2016 they list no health-based violations and 2 monitoring or reporting violations.

Violations that began in Health-based Monitoring and reporting
2010 to October 18, 2016 0 2
October 19, 2016 to 2019 3 2
2020s 12 0

Enforcement actions

Montana regulators took 1 formal enforcement action against Ncmrwa Tiber Service Area in 2020, filed as 10 records in EPA's data. The most recent was a compliance order (no penalty) in May 2020.

Date By Action Violations covered
May 1, 2020 Montana Compliance order (no penalty) 14 violations (14 health-based): Haloacetic Acids (HAA5), Total Trihalomethanes (TTHMs)

What the violations mean

Haloacetic Acids (HAA5)

14 incidents

Haloacetic acid byproducts exceeded the federal limit

Long-term exposure to HAAs may increase cancer risk

Total Trihalomethanes (TTHMs)

1 incident

Disinfection byproduct levels exceeded the federal limit

Long-term TTHM exposure may increase bladder cancer risk

Where the water comes from

Ncmrwa Tiber Service Area buys its water from Tiber County Water District. It lists no wells or intakes of its own. 2 other community water systems buy water from Ncmrwa Tiber Service Area.

Buys water from

Community systems that buy water from it

Annual water quality report

Ncmrwa Tiber Service Area 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 Ncmrwa Tiber Service Area 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.

Certified drinking water labs by state EPA guidance for private wells