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Water system · PWSID PA1090005

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BRYN MAWR, PA · ~5,900 people served

Check your exact address → BRYN MAWR overview
47
Fair
PurityRadar safety score

PWSID

PA1090005

State

Pennsylvania

City

BRYN MAWR

Population served

5,900

Primary source

Groundwater

Score history

▼ 53 points — the score moved from 100 to 47 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 47

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

PFOA

Perfluorooctanoic acid

7.4 ppt

limit 4 ppt

Above EPA limit · 1.9×

PFOS

Perfluorooctanesulfonic acid

6.6 ppt

limit 4 ppt

Above EPA limit · 1.6×

PFHxS

Perfluorohexanesulfonic acid

3.1 ppt

limit 10 ppt

Below EPA limit

Lithium

9,670 ppt

limit —

No federal limit

PFBA

9 ppt

limit —

No federal limit

PFBS

5.3 ppt

limit —

No federal limit

PFPeA

4 ppt

limit —

No federal limit

PFHxA

3.7 ppt

limit —

No federal limit

PFHpA

3.1 ppt

limit —

No federal limit

Violations & enforcement

66

Violations on record

0

Unaddressed

4

Health-based

23

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2024. Official EPA record →

Monitoring & reporting · EPA contaminant 4020 began Oct 2023 Resolved
Monitoring & reporting · EPA contaminant 4030 began Oct 2023 Resolved
Other · EPA contaminant 7500 began Apr 2019 Resolved
Treatment technique · EPA contaminant 0700 health-based began Apr 2019 Resolved
Other · EPA contaminant 7500 began Apr 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Apr 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began Sep 2015 Resolved
Other · EPA contaminant 7500 began Sep 2015 Resolved
Monitoring & reporting · EPA contaminant 4030 began Jul 2005 Resolved
Monitoring & reporting · Gross alpha began Jul 2005 Resolved
Monitoring & reporting · EPA contaminant 4020 began Jul 2005 Resolved
Other · EPA contaminant 7000 began Jul 2000 Resolved

Recent enforcement actions

  • State action · SOX Feb 2024
  • State action · SIA Jan 2024
  • State action · SOX May 2019
  • State action · SIA May 2019
  • State action · SOX Aug 2018
  • State action · SIA Jun 2018
  • State action · SOX Jan 2016
  • State action · SIA Nov 2015

This profile is built from EPA public records for system PA1090005 — 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.