GREGORY

GREGORY, SD · ~1,221 people served

Check your exact address → GREGORY overview

100

Excellent

PurityRadar safety score

PWSID

SD4600145

State

South Dakota

City

GREGORY

Population served

1,221

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2020. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Jan 2019 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2005 Resolved

Treatment technique · EPA contaminant 0400 health-based began Jan 2004 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2050 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2306 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2065 began Jan 1999 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2067 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2051 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2383 began Jan 1999 Resolved

Monitoring & reporting · EPA contaminant 2035 began Jan 1999 Resolved

Recent enforcement actions

State action · SOX Sep 2020
State action · SO6 Jan 2020
State action · SOX Jun 2006
State action · SOX Jun 2006
State action · SIF May 2006
State action · SIE Nov 2005
State action · SOX Apr 2005
State action · SIA Jan 2004

This profile is built from EPA public records for system SD4600145 — 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.