CheckPFAS

ZIP Code 17315

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

7
PFAS Detected
2
Above EPA Limits
1
Water System
240%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 240% of limit
Detected: 9.60 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 148% of limit
Detected: 5.90 ppt

DOVER TWP WATER SYS

PA7670073 High Risk
Water Type
Groundwater
PFAS Detected
7
Above MCL
2
State
Pennsylvania
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
9.60ppt
240% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
5.90ppt
148% of limit
4 ppt⚠ Exceeds MCL
lithium
58800.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
10.60pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
6.40pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
5.70pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
3.50pptNo federal limitUnregulated

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →