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Water system · PWSID KS2018502

ST JOHN, CITY OF

ST JOHN, KS · ~1,176 people served

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

PWSID

KS2018502

State

Kansas

City

ST JOHN

Population served

1,176

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

21

Violations on record

1

Unaddressed

8

Health-based

61

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2023. Official EPA record →

Other · EPA contaminant 7500 began Jul 2021 Unaddressed
Monitoring & reporting · Lead & Copper Rule began Oct 2022 Resolved
Other · EPA contaminant 7500 began Jun 2021 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jan 2021 Resolved
Other · EPA contaminant 0700 began Mar 2020 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2019 Resolved
Monitoring · Lead & Copper Rule began Mar 2019 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2016 Resolved
Monitoring & reporting · Total coliform began Dec 2013 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 2012 Resolved
Max contaminant level (MCL) · Nitrate health-based began Jul 2011 Resolved
Max contaminant level (MCL) · Nitrate health-based began Apr 2011 Resolved

Recent enforcement actions

  • State action · SOX May 2023
  • State action · SIA May 2023
  • State action · SOX Dec 2021
  • State action · SOX Jun 2021
  • State action · SIF Jun 2021
  • State action · SOX Jun 2021
  • State action · SIA Jun 2021
  • State action · SIE Jun 2021

This profile is built from EPA public records for system KS2018502 — 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.