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States → Pennsylvania

PHOENIXVILLE WATER DEPT

PWS ID: PA1150077 · PHOENIXVILLE, Pennsylvania 19460

PFAS Detected

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

Population Served
16,599
Total Violations
502
Health-Based Violations
53
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
5,958
County
Chester
School/Daycare
No
MCL Violations
38
Monitoring Violations
433
Treatment Tech Violations
15

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 39 2023
CARBON, TOTAL MR 19 2020
Coliform (TCR) MCL 19 2014
TTHM MCL 19 1993
1,1-Dichloroethylene MR 18 2019
1,1,1-Trichloroethane MR 18 2019
Carbon tetrachloride MR 18 2019
Benzene MR 18 2019
p-Dichlorobenzene MR 18 2019
Trichloroethylene MR 18 2019
1,2-Dichloroethane MR 18 2019
Nitrate MR 16 2001
Arsenic MR 11 2019
Chromium MR 11 2019
Barium MR 11 2019
Fluoride MR 11 2019
Cadmium MR 11 2019
Mercury MR 11 2019
Surface Water Treatment Rule TT 11 2003
Selenium MR 11 2019
Interim Enhanced Surface Water Treatment Rule MR 10 2024
Consumer Confidence Rule Other 6 2011
Beryllium, Total MR 5 2019
cis-1,2-Dichloroethylene MR 5 2019
Xylenes, Total MR 5 2019
trans-1,2-Dichloroethylene MR 5 2019
1,1,2-Trichloroethane MR 5 2019
CHLOROBENZENE MR 5 2019
Ethylbenzene MR 5 2019
Styrene MR 5 2019

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 19 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
NEtFOSAA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/29/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 7/29/2024 <0.008 µg/L 0.008 µg/L Not Detected
lithium 7/29/2024 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 7/29/2024 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFNA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 7/29/2024 0.0051 µg/L 0.004 µg/L Detected
PFOA 7/29/2024 0.0059 µg/L 0.004 µg/L Detected
PFDA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 7/29/2024 0.0090 µg/L 0.003 µg/L Detected
PFUnA 7/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 7/29/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 7/29/2024 0.0031 µg/L 0.003 µg/L Detected
PFBA 7/29/2024 0.0339 µg/L 0.005 µg/L Detected
4:2 FTS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 7/29/2024 0.0102 µg/L 0.003 µg/L Detected
PFMBA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 7/29/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 7/29/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 7/29/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 7/29/2024 0.0098 µg/L 0.003 µg/L Detected
HFPO-DA 7/29/2024 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 6/5/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/5/2024 0.0069 µg/L 0.003 µg/L Detected
8:2 FTS 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/5/2024 0.0055 µg/L 0.003 µg/L Detected
PFUnA 6/5/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHpA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/5/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/5/2024 0.0045 µg/L 0.004 µg/L Detected
PFOA 6/5/2024 0.0051 µg/L 0.004 µg/L Detected
PFDA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/5/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 6/5/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxA 6/5/2024 0.0059 µg/L 0.003 µg/L 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.