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States → Pennsylvania

EPHRATA AREA JOINT AUTHORITY

PWS ID: PA7360045 · EPHRATA, Pennsylvania 17522

PFAS Detected

7 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
24,500
Total Violations
182
Health-Based Violations
9
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
8,607
County
Lancaster
School/Daycare
No
MCL Violations
2
Monitoring Violations
161
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
CARBON, TOTAL MR 11 2025
Surface Water Treatment Rule MR 9 1992
Nitrate MR 9 2011
Nitrite MR 7 2011
Coliform (TCR) MR 6 2009
Total Polychlorinated Biphenyls (PCB) MR 6 2011
Benzene MR 6 2012
1,2,4-Trichlorobenzene MR 5 2012
cis-1,2-Dichloroethylene MR 5 2012
DICHLOROMETHANE MR 5 2012
o-Dichlorobenzene MR 5 2012
p-Dichlorobenzene MR 5 2012
1,2-Dichloroethane MR 5 2012
Trichloroethylene MR 5 2012
Tetrachloroethylene MR 5 2012
Ethylbenzene MR 5 2012
Xylenes, Total MR 5 2012
1,1-Dichloroethylene MR 5 2012
trans-1,2-Dichloroethylene MR 5 2012
1,1,2-Trichloroethane MR 5 2012
CHLOROBENZENE MR 5 2012
Toluene MR 5 2012
Styrene MR 5 2012
Surface Water Treatment Rule TT 4 1994
1,1,1-Trichloroethane MR 3 2010
Carbon tetrachloride MR 3 2012
1,2-Dichloropropane MR 3 2012
CARBON, TOTAL TT 3 2013
Chlorine MR 3 2009
Di(2-ethylhexyl) adipate MR 2 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 26 of 240 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/17/2024 0.0069 µg/L 0.003 µg/L Detected
PFMBA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFTA 9/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
11Cl-PF3OUdS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/17/2024 <9 µg/L 9 µg/L Not Detected
PFHpA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 9/17/2024 0.0052 µg/L 0.003 µg/L Detected
NMeFOSAA 9/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
NFDHA 9/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFBA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 9/17/2024 0.0036 µg/L 0.003 µg/L Detected
PFNA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
NEtFOSAA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/17/2024 0.0059 µg/L 0.003 µg/L Detected
PFDoA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFOA 9/17/2024 0.0058 µg/L 0.004 µg/L Detected
NFDHA 6/18/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFUnA 6/18/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxS 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/18/2024 0.0058 µg/L 0.003 µg/L Detected
PFMPA 6/18/2024 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 6/18/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 6/18/2024 <9 µg/L 9 µg/L Not Detected
PFHxA 6/18/2024 0.0048 µg/L 0.003 µg/L Detected
PFDoA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/18/2024 <0.003 µg/L 0.003 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.