BLAIR TWP WATER & SEWER AUTH

DUNCANSVILLE, PA · ~2,550 people served

Check your exact address → DUNCANSVILLE overview

100

Excellent

PurityRadar safety score

PWSID

PA4070011

State

Pennsylvania

City

DUNCANSVILLE

Population served

2,550

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 Apr 2022. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2020 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2020 Resolved

Reporting · Lead & Copper Rule began Oct 2019 Resolved

Monitoring & reporting · EPA contaminant 0200 began Jul 2019 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2019 Resolved

Treatment technique · EPA contaminant 0200 health-based began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 0200 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2007 Resolved

Monitoring & reporting · Total coliform began Jul 2007 Resolved

Monitoring & reporting · EPA contaminant 0200 began Jun 2007 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2007 Resolved

Recent enforcement actions

State action · SOX Apr 2022
State action · SIE Oct 2020
State action · SFJ Oct 2020
State action · SIF Sep 2020
State action · SOX Dec 2019
State action · SIA Dec 2019
State action · SOX Dec 2019
State action · SFJ Aug 2019

This profile is built from EPA public records for system PA4070011 — 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.