MONTROSE

MONTROSE, SD · ~468 people served

Check your exact address → MONTROSE overview

100

Excellent

PurityRadar safety score

PWSID

SD4600217

State

South Dakota

City

MONTROSE

Population served

468

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

128

Violations on record

Unaddressed

Health-based

105

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0999 began Apr 2022 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2018 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2016 Resolved

Monitoring & reporting · Total coliform began Sep 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2014 Resolved

Treatment technique · EPA contaminant 0400 health-based began Feb 2013 Resolved

Treatment technique · EPA contaminant 0400 health-based began Jan 2011 Resolved

Monitoring & reporting · Total coliform began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2011 Resolved

Other · EPA contaminant 7500 began Dec 2005 Resolved

Monitoring & reporting · Total coliform began Nov 2004 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2004 Resolved

Recent enforcement actions

State action · SOX Sep 2022
State action · SIF Jul 2022
State action · SIE Jul 2022
State action · SOX Jul 2018
State action · SIA Apr 2018
State action · SIA Mar 2016
State action · SOX Mar 2016
State action · SIF Jun 2015

This profile is built from EPA public records for system SD4600217 — 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.