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Water system · PWSID MT0000197

DEER LODGE CITY OF

DEER LODGE, MT · ~2,900 people served

Check your exact address → DEER LODGE overview
100
Excellent
PurityRadar safety score

PWSID

MT0000197

State

Montana

City

DEER LODGE

Population served

2,900

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

44

Violations on record

0

Unaddressed

5

Health-based

94

Enforcement actions

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

Monitoring & reporting · Thallium began Jan 2021 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2017 Resolved
Monitoring & reporting · Total coliform began Aug 2014 Resolved
Monitoring & reporting · Arsenic began Jul 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2014 Resolved
Monitoring & reporting · Arsenic began Apr 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2013 Resolved
Monitoring & reporting · Arsenic began Jul 2013 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Monitoring & reporting · Total coliform began Nov 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2010 Resolved

Recent enforcement actions

  • State action · SOX Feb 2022
  • State action · SIA Feb 2022
  • State action · SIE Feb 2022
  • State action · SOX Mar 2018
  • State action · SIA Jan 2018
  • State action · SOX Dec 2014
  • State action · SOX Dec 2014
  • State action · SIA Oct 2014

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Copper

1 station · latest Nov 2023

10.9 · max 351 ug/l · 130

Arsenic

1 station · latest Nov 2023

12.1 · max 48.1 ug/l · 128

Lead

1 station · latest Nov 2023

0.603 · max 41.7 ug/l · 119

Manganese

1 station · latest Nov 2023

46.1 · max 501 ug/l · 78

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system MT0000197 — 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.