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Water system · PWSID PA7360058

CITY OF LANCASTER

LANCASTER, PA · ~120,000 people served

Check your exact address → LANCASTER overview
67
Fair
PurityRadar safety score

PWSID

PA7360058

State

Pennsylvania

City

LANCASTER

Population served

120,000

Primary source

Surface water

Score history

▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 67

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 Sep 2024). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

24 ppt

limit 4 ppt

Above EPA limit · 6.0×

PFHxA

29 ppt

limit —

No federal limit

PFPeA

22 ppt

limit —

No federal limit

PFBA

15 ppt

limit —

No federal limit

PFBS

9.8 ppt

limit —

No federal limit

PFHpA

8.1 ppt

limit —

No federal limit

Violations & enforcement

60

Violations on record

0

Unaddressed

8

Health-based

33

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0200 began May 2025 Resolved
Monitoring & reporting · EPA contaminant 0200 began Sep 2024 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2024 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2016 Resolved
Monitoring & reporting · EPA contaminant 0300 began Aug 2013 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2011 Resolved

Recent enforcement actions

  • State action · SIA Jun 2025
  • State action · SOX Jun 2025
  • State action · SIA Nov 2024
  • State action · SOX Nov 2024
  • State action · SOX Jul 2024
  • State action · SIA Jul 2024
  • State action · SIF Jul 2024
  • State action · SOX Jun 2017

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

2 stations · latest Mar 2025

12 · max 360 ug/L · 158

Copper

2 stations · latest Mar 2025

1.57 · max 20.6 ug/L · 141

Lead

1 station · latest Sep 2024

0.369 · max 12.2 ug/L · 99

Nitrate

11 stations · latest Jul 2024

4.3 · max 9.6 mg/L · 36

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 PA7360058 — 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.