SUFFOLK COUNTY WATER AUTHORITY

NY · PWS ID NY5110526 · Community water system

31
contaminants tested
11
detected
1,100,000
people served
Water source
Ground water
Ownership
Local government
Counties served
Suffolk

PFAS detected

“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
ContaminantMaxDetection ratePeriod
PFPeA 0.0394 ug/L 53/480 2025
PFHxA 0.0435 ug/L 45/480 2025
PFHxS 0.0108 ug/L 19/480 2025
PFOA 0.0065 ug/L 19/480 2025
PFOS 0.0174 ug/L 13/480 2025
PFBA 0.0126 ug/L 9/480 2025
PFBS 0.0052 ug/L 5/480 2025
PFHpA 0.0096 ug/L 4/480 2025
6:2 FTS 0.0236 ug/L 2/480 2025
PFNA 0.0057 ug/L 2/480 2025

Other contaminants detected

ContaminantMaxDetection rateSourcePeriod
LEAD SUMMARY 0.0080 mg/L 21/21 LCR 2027
20 contaminants tested, none detected
11Cl-PF3OUdS4:2 FTS8:2 FTS9Cl-PF3ONSADONAHFPO-DANEtFOSAANFDHANMeFOSAAPFDAPFDoAPFEESAPFHpSPFMBAPFMPAPFPeSPFTAPFTrDAPFUnAlithium

Areas served

BABYLON (T)BROOKHAVEN (T)EAST HAMPTON (T)HUNTINGTON (T)ISLIP (T)RIVERHEAD (T)SMITHTOWN (T)SOUTHAMPTON (T)SOUTHOLD (T)

Utility contact

Contact
SCHNEIDER, THOMAS
Phone
631-563-0258
Email
thomas.schneider@scwa.com