SAINT LAWRENCE

MILLER, SD · ~198 people served

Check your exact address → MILLER overview

100

Excellent

PurityRadar safety score

PWSID

SD4600286

State

South Dakota

City

MILLER

Population served

198

Primary source

SWP

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 May 1997. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1996 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1996 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 1995 Resolved

Monitoring & reporting · EPA contaminant 2985 began Jan 1995 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 1995 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jan 1995 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1995 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 1995 Resolved

Monitoring & reporting · EPA contaminant 2987 began Jan 1995 Resolved

Recent enforcement actions

State action · SOX May 1997
State action · SOX May 1997
State action · SOX May 1997
State action · SOX May 1997
State action · SFG Dec 1996
State action · SIE Oct 1996
State action · SIE Oct 1996
State action · SIF Oct 1996

This profile is built from EPA public records for system SD4600286 — 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.