SALISBURY TWP WATER SYSTEM

ALLENTOWN, PA · ~8,522 people served

Check your exact address → ALLENTOWN overview

Good

PurityRadar safety score

PWSID

PA3390062

State

Pennsylvania

City

ALLENTOWN

Population served

8,522

Primary source

SWP

Score history

▼ 20 points — the score moved from 100 to 80 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 80

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Oct 2025). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

4.5 ppt

limit 4 ppt

Above EPA limit · 1.1×

PFOS

Perfluorooctanesulfonic acid

4.2 ppt

limit 4 ppt

Above EPA limit · 1.0×

PFPeA

5.6 ppt

limit —

No federal limit

PFHxA

4.1 ppt

limit —

No federal limit

PFBS

3.2 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2019. Official EPA record →

Other · EPA contaminant 7000 began Oct 2019 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2016 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2014 Resolved

Other · EPA contaminant 7000 began Jul 2000 Resolved

Recent enforcement actions

State action · SOX Nov 2019
State action · SFJ Nov 2019
State action · SIF Feb 2018
State action · SOX Mar 2017
State action · SIA Jan 2017
State action · SIE Jan 2017
State action · SIF Jun 2015
State action · SIE Nov 2014

This profile is built from EPA public records for system PA3390062 — 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.