SLEEPY HOLLOW SUBDIVISION

GILLETTE, WY · ~2,400 people served

Check your exact address → GILLETTE overview

100

Excellent

PurityRadar safety score

PWSID

WY5600764

State

Wyoming

City

GILLETTE

Population served

2,400

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 Nov 2018. Official EPA record →

Monitoring · Lead & Copper Rule began Oct 2018 Resolved

Monitoring & reporting · Nitrite began Jul 2000 Resolved

Monitoring & reporting · Total coliform began Jul 1999 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jul 1997 Resolved

Monitoring & reporting · Total coliform began May 1997 Resolved

Monitoring & reporting · Nitrate began Jan 1996 Resolved

Monitoring & reporting · Total coliform began Sep 1995 Resolved

Monitoring & reporting · Total coliform began Jul 1994 Resolved

Monitoring & reporting · Nitrate began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Nov 2018
State action · SOX Jun 2003
State action · SFL Mar 2001
State action · SOX May 2000
State action · SIA Sep 1988
State action · SIF Sep 1982
State action · SIA Sep 1982

This profile is built from EPA public records for system WY5600764 — 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.