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Water system · PWSID PA7220036

PA AMERICAN WATER STEELTON

HUMMELSTOWN, PA · ~6,428 people served

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

PWSID

PA7220036

State

Pennsylvania

City

HUMMELSTOWN

Population served

6,428

Primary source

Surface water

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

61

Violations on record

0

Unaddressed

32

Health-based

119

Enforcement actions

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

Monitoring & reporting · EPA contaminant 2042 began Oct 2018 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2018 Resolved
Reporting · Lead & Copper Rule began Dec 2017 Resolved
Treatment technique · Lead & Copper Rule health-based began Dec 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2017 Resolved
Other · EPA contaminant 7500 began May 2017 Resolved

Recent enforcement actions

  • State action · SIF Jun 2019
  • State action · SOX Mar 2019
  • State action · SFJ Feb 2019
  • State action · SIE Feb 2019
  • State action · SOX May 2018
  • State action · SIF May 2018
  • State action · SFJ May 2018
  • State action · SIE May 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

Manganese

1 station · latest Aug 2022

0.016 · max 0.0253 mg/L · 3

Nitrate

1 station · latest Aug 2022

0.84 · max 1.9 mg/L · 3

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 PA7220036 — 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.