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Water system · PWSID MI0006300

ST. JOHNS, CITY OF

ST. JOHNS, MI · ~7,896 people served

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

PWSID

MI0006300

State

Michigan

City

ST. JOHNS

Population served

7,896

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

Latest detections from EPA’s UCMR5 monitoring (through Jun 2025). Levels in parts per trillion (ppt).

Lithium

25,000 ppt

limit —

No federal limit

Violations & enforcement

5

Violations on record

0

Unaddressed

0

Health-based

10

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2020 Resolved
Other · EPA contaminant 7000 began Oct 2016 Resolved
Monitoring & reporting · Total coliform began Dec 2000 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SOX Jun 2022
  • State action · SIE Aug 2021
  • State action · SIA Aug 2021
  • State action · SOX Jan 2017
  • State action · SIA Jan 2017
  • State action · SIF Mar 2001
  • State action · SIA Jan 2001

This profile is built from EPA public records for system MI0006300 — 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.