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Water system · PWSID ID1050024

ST MARIES CITY OF

ST MARIES, ID · ~4,173 people served

Check your exact address → ST MARIES overview
100
Excellent
PurityRadar safety score

PWSID

ID1050024

State

Idaho

City

ST MARIES

Population served

4,173

Primary source

Surface water

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

13

Violations on record

0

Unaddressed

1

Health-based

8

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2005. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2004 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2004 Resolved
Monitoring & reporting · Nitrate began Jan 2002 Resolved
Monitoring & reporting · Arsenic began Jan 2001 Resolved
Monitoring & reporting · Nitrate began Jan 2001 Resolved
Monitoring & reporting · EPA contaminant 2110 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jan 1996 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jan 1996 Resolved
Monitoring & reporting · Chlorite began Jan 1996 Resolved

Recent enforcement actions

  • State action · SOX Jun 2005
  • State action · SOX Dec 2004
  • State action · SFK Jun 2003
  • State action · SOX Mar 2003
  • State action · SOX Feb 2003
  • State action · SFK Jul 2002
  • State action · SIE May 2002
  • State action · SOX Jan 2002

This profile is built from EPA public records for system ID1050024 — 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.