THERMOPOLIS, TOWN OF

THERMOPOLIS, WY · ~2,775 people served

Check your exact address → THERMOPOLIS overview

100

Excellent

PurityRadar safety score

PWSID

WY5600056

State

Wyoming

City

THERMOPOLIS

Population served

2,775

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2011. Official EPA record →

Treatment technique · EPA contaminant 0300 health-based began Jul 2011 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2007 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2007 Resolved

Monitoring & reporting · Bromate began Jul 2007 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2007 Resolved

Recent enforcement actions

State action · SOX Oct 2011
State action · SIA Aug 2011
State action · SOX Apr 2009
State action · SOX Dec 2008
State action · SIF Mar 2008
State action · SIA Feb 2008
State action · SIA Sep 1983

This profile is built from EPA public records for system WY5600056 — 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.