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Water system · PWSID PA5020009

HARMAR TWP MUNI AUTH

CHESWICK, PA · ~3,200 people served

Check your exact address → CHESWICK overview
100
Excellent
PurityRadar safety score

PWSID

PA5020009

State

Pennsylvania

City

CHESWICK

Population served

3,200

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

121

Violations on record

0

Unaddressed

3

Health-based

79

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Monitoring & reporting · EPA contaminant 1011 began Jul 2022 Resolved
Monitoring & reporting · Combined radium-226/228 began Oct 2021 Resolved
Monitoring & reporting · EPA contaminant 0700 began Apr 2020 Resolved
Monitoring & reporting · EPA contaminant 1011 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 1011 began Oct 2016 Resolved
Monitoring & reporting · EPA contaminant 1011 began Jul 2013 Resolved
Treatment technique · EPA contaminant 0700 health-based began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 1011 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 0700 began Oct 2012 Resolved
Monitoring & reporting · Total coliform began Mar 2012 Resolved
Monitoring & reporting · EPA contaminant 1011 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2012 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SOX Nov 2025
  • State action · SIE Nov 2022
  • State action · SFJ Nov 2022
  • State action · SOX Mar 2022
  • State action · SIA Mar 2022
  • State action · SIA Sep 2020
  • State action · SOX Nov 2018

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Mar 2025

0.53 · max 1 mg/L · 95

Manganese

1 station · latest Mar 2025

137 · max 3,210 ug/L · 94

Copper

1 station · latest Mar 2025

1.94 · max 22.8 ug/L · 54

Lead

1 station · latest Mar 2025

1.63 · max 22 ug/L · 31

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system PA5020009 — 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.