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Water system · PWSID MT0004661

HILLCREST COLONY

100
Excellent
PurityRadar safety score

PWSID

MT0004661

State

Montana

City

POWER

Population served

89

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

5

Violations on record

0

Unaddressed

0

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2022. Official EPA record →

Other · EPA contaminant 7000 began Jul 2022 Resolved
Monitoring · Lead & Copper Rule began Sep 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Apr 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2016 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2016 Resolved

Recent enforcement actions

  • State action · SOX Jul 2022
  • State action · SIA Jul 2022
  • State action · SIA Oct 2018
  • State action · SIE Oct 2018
  • State action · SOX Sep 2018
  • State action · SOX Apr 2018
  • State action · SIA Apr 2018
  • State action · SOX Oct 2016

This profile is built from EPA public records for system MT0004661 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.