ST THOMAS CITY OF

ST. THOMAS, ND · ~331 people served

Check your exact address → ST. THOMAS overview

100

Excellent

PurityRadar safety score

PWSID

ND3400856

State

North Dakota

City

ST. THOMAS

Population served

331

Primary source

GWP

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Other · EPA contaminant 7000 began Oct 2022 Resolved

Monitoring & reporting · Lead & Copper Rule began Sep 2022 Resolved

Monitoring · Lead & Copper Rule began Dec 2020 Resolved

Monitoring & reporting · EPA contaminant 1006 began Oct 2020 Resolved

Recent enforcement actions

State action · SOX Dec 2022
State action · SOX Oct 2022
State action · SOX May 2021
State action · SIF Feb 2021
State action · SIF Feb 2021
State action · SIE Jan 2021
State action · SIA Jan 2021
State action · SIE Jan 2021

This profile is built from EPA public records for system ND3400856 — 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.