PlainWater
States → New York

NYACK VILLAGE WATER SUPPLY

PWS ID: NY4303666 · NYACK, New York 10960

PFAS Detected

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

Population Served
14,700
Total Violations
29
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
3,300
County
Rockland
School/Daycare
No
MCL Violations
0
Monitoring Violations
11
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
TTHM MR 8 2022
Public Notice Other 4 2022
CARBON, TOTAL MR 3 2004
Interim Enhanced Surface Water Treatment Rule TT 3 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 16 of 90 samples detected PFAS.

Contaminant Date Result MRL Status
ADONA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/8/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 9/8/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 9/8/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 9/8/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/8/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/8/2025 0.0052 µg/L 0.003 µg/L Detected
PFMPA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 9/8/2025 0.0033 µg/L 0.003 µg/L Detected
PFBA 9/8/2025 0.0051 µg/L 0.005 µg/L Detected
HFPO-DA 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFUnA 9/8/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 9/8/2025 0.0047 µg/L 0.003 µg/L Detected
PFDoA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 9/8/2025 0.0098 µg/L 0.004 µg/L Detected
PFOS 9/8/2025 0.0052 µg/L 0.004 µg/L Detected
PFNA 9/8/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 9/8/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 9/8/2025 0.0032 µg/L 0.003 µg/L Detected
8:2 FTS 9/8/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 6/23/2025 0.0039 µg/L 0.003 µg/L Detected
PFBA 6/23/2025 0.0050 µg/L 0.005 µg/L Detected
PFNA 6/23/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHxS 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 6/23/2025 0.0079 µg/L 0.004 µg/L Detected
PFDA 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/23/2025 0.0037 µg/L 0.003 µg/L Detected
PFUnA 6/23/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/23/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 6/23/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 6/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 6/23/2025 <9 µg/L 9 µg/L Not Detected
PFTrDA 6/23/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/23/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/23/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFHpS 6/23/2025 <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.