PWSID
PA1460073
State
Pennsylvania
City
BRYN MAWR
Population served
822,600
Primary source
Surface water
Score history
▼ 46 points — the score moved from 100 to 54 on Jun 18, 2026, as newly published EPA data was incorporated.
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
6.6 ppt
limit 4 ppt
PFOS
Perfluorooctanesulfonic acid
5 ppt
limit 4 ppt
PFHxS
Perfluorohexanesulfonic acid
7.7 ppt
limit 10 ppt
PFNA
Perfluorononanoic acid
7 ppt
limit 10 ppt
Lithium
15,300 ppt
limit —
PFBA
5.6 ppt
limit —
PFPeA
5.4 ppt
limit —
PFHxA
4.9 ppt
limit —
PFHpA
4.7 ppt
limit —
PFBS
3.5 ppt
limit —
Violations & enforcement
118
Violations on record
0
Unaddressed
6
Health-based
77
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement May 2025. Official EPA record →
Recent enforcement actions
- State action · SIF May 2025
- State action · SOX May 2025
- State action · SIE Jan 2025
- State action · SOX Jan 2025
- State action · SIA Jan 2025
- State action · SIF Jan 2025
- State action · SIE Dec 2024
- State action · SOX Dec 2024
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.
Nitrate
9 stations · latest Oct 2023
Fluoride
6 stations · latest Oct 2023
Manganese
1 station · latest Dec 2021
Copper
2 stations · latest Sep 2022
Arsenic
1 station · latest Dec 2021
Lead
1 station · latest Dec 2021
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 PA1460073 — 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.