Public water system record

Hi-Line Colony

On record as serving Whitlash, Liberty County, MT · Serves 92 people

Federal records show no health-based violations and 26 monitoring/reporting issues for Hi-Line Colony in the last ten years.

  • MT0005185
  • CHESTER
  • MT
  • 92 served

System profile

Source water Groundwater
ZIP 59522
EPA system ID MT0005185

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
26

Key facts

  • Hi-Line Colony draws water from 2 wells.
  • 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.

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
Jul 1, 2025 Resolved
Di(2-ethylhexyl) adipate
Monitoring and reporting
Apr 1, 2025 Resolved
Dalapon
Monitoring and reporting
Apr 1, 2025 Resolved
Toxaphene
Monitoring and reporting
Apr 1, 2025 Resolved
Methoxychlor
Monitoring and reporting
Apr 1, 2025 Resolved
BHC-GAMMA
Monitoring and reporting
Apr 1, 2025 Resolved
Endrin
Monitoring and reporting
Apr 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Apr 1, 2025 Resolved
Chlordane
Monitoring and reporting
Apr 1, 2025 Resolved
Pentachlorophenol
Monitoring and reporting
Apr 1, 2025 Resolved
Benzo(a)pyrene
Monitoring and reporting
Apr 1, 2025 Resolved
HEXACHLOROBENZENE
Monitoring and reporting
Apr 1, 2025 Resolved
2,4,5-TP
Monitoring and reporting
Apr 1, 2025 Resolved
2,4-D
Monitoring and reporting
Apr 1, 2025 Resolved
Heptachlor epoxide
Monitoring and reporting
Apr 1, 2025 Resolved
Heptachlor
Monitoring and reporting
Apr 1, 2025 Resolved
LASSO
Monitoring and reporting
Apr 1, 2025 Resolved
Atrazine
Monitoring and reporting
Apr 1, 2025 Resolved
Carbofuran
Monitoring and reporting
Apr 1, 2025 Resolved
Hexachlorocyclopentadiene
Monitoring and reporting
Apr 1, 2025 Resolved
Dinoseb
Monitoring and reporting
Apr 1, 2025 Resolved
Picloram
Monitoring and reporting
Apr 1, 2025 Resolved
Di(2-ethylhexyl) phthalate
Monitoring and reporting
Apr 1, 2025 Resolved
Simazine
Monitoring and reporting
Apr 1, 2025 Resolved
OXAMYL
Monitoring and reporting
Apr 1, 2025 Resolved
Revised Total Coliform Rule
Monitoring violation
Mar 1, 2025 Resolved

Where the water comes from

Hi-Line Colony draws water from 2 wells.

Annual water quality report

Hi-Line Colony 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 Hi-Line Colony 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.