ST. THOMAS MORE SCHOOL-MAIN SYSTEM

OAKDALE, CT · ~270 people served

Check your exact address → OAKDALE overview

100

Excellent

PurityRadar safety score

PWSID

CT0861251

State

Connecticut

City

OAKDALE

Population served

270

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 Dec 2025. Official EPA record →

Other · EPA contaminant 7500 began May 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Sep 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2019 Resolved

Other · EPA contaminant 7500 began Jun 2017 Resolved

Monitoring & reporting · Lead & Copper Rule began Apr 2017 Resolved

Other · EPA contaminant 7000 began Jul 2016 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2016 Resolved

Monitoring & reporting · Lead & Copper Rule began Sep 2015 Resolved

Monitoring & reporting · Lead & Copper Rule began Jul 2015 Resolved

Monitoring & reporting · Lead & Copper Rule began Apr 2015 Resolved

Recent enforcement actions

State action · SIF Dec 2025
State action · SIA Sep 2025
State action · SIE Sep 2025
State action · SOX Aug 2025
State action · SIF Jul 2024
State action · SOX Jul 2024
State action · SIA Jul 2024
State action · SIE May 2023

This profile is built from EPA public records for system CT0861251 — 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.