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Water system · PWSID PA1090079

BCWSA MAIN LOWER SOUTH

WARRINGTON, PA · ~52,621 people served

Check your exact address → WARRINGTON overview
69
Fair
PurityRadar safety score

PWSID

PA1090079

State

Pennsylvania

City

WARRINGTON

Population served

52,621

Primary source

SWP

Score history

▼ 31 points — the score moved from 100 to 69 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 69

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

PFOA

Perfluorooctanoic acid

6.4 ppt

limit 4 ppt

Above EPA limit · 1.6×

PFOS

Perfluorooctanesulfonic acid

4 ppt

limit 4 ppt

Near EPA limit

PFHxS

Perfluorohexanesulfonic acid

3.6 ppt

limit 10 ppt

Below EPA limit

PFBA

7.5 ppt

limit —

No federal limit

PFBS

5 ppt

limit —

No federal limit

PFHxA

3.1 ppt

limit —

No federal limit

PFHpA

3 ppt

limit —

No federal limit

PFPeA

3 ppt

limit —

No federal limit

Violations & enforcement

58

Violations on record

0

Unaddressed

19

Health-based

117

Enforcement actions

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

Max contaminant level (MCL) · Lead & Copper Rule health-based began Sep 2025 Resolved
Other · EPA contaminant 7500 began Sep 2023 Resolved
Reporting · Lead & Copper Rule began Aug 2023 Resolved
Treatment technique · Lead & Copper Rule health-based began Aug 2023 Resolved
Other · EPA contaminant 7500 began Aug 2023 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2023 Resolved
Other · EPA contaminant 7500 began May 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2022 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2022 Resolved
Other · EPA contaminant 7500 began Nov 2018 Resolved
Other · EPA contaminant 7500 began Nov 2018 Resolved

Recent enforcement actions

  • State action · SIF Oct 2025
  • State action · SOX Oct 2025
  • State action · SIA Oct 2025
  • State action · SIE Oct 2025
  • State action · SOX Oct 2023
  • State action · SIF Oct 2023
  • State action · SIE Oct 2023
  • State action · SIA Sep 2023

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

1.72 · max 4.92 mg/L · 99

Manganese

1 station · latest Mar 2025

24 · max 206 ug/L · 98

Copper

1 station · latest Mar 2025

3.69 · max 55.8 ug/L · 64

Lead

1 station · latest Jan 2024

2.4 · max 4.15 ug/L · 7

Arsenic

1 station · latest Nov 2021

0.45 · max 0.45 ug/l · 1

Fluoride

1 station · latest Nov 2021

0.2 · max 0.2 mg/l · 1

Uranium

1 station · latest Nov 2021

1.79 · max 1.79 ug/l · 1

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 PA1090079 — 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.