PFAS Comply

ST JOHNSBURY WATER SYSTEM

PWSID: VT0005045 · ST JOHNSBURY, VT · Serving 5,000 people

Type: CWSOwner: LSource: SW
Compliant

All PFAS compounds below EPA Maximum Contaminant Levels.

Key contaminants vs MCL

EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: 2031-12-31

Detection summary

0
PFAS compounds detected
N/A ppt
Highest single detection
2025-06-24
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFDoAND—Below MRL2025-03-17
PFMPAND—Below MRL2025-03-17
8:2 FTSND—Below MRL2025-03-17
4:2 FTSND—Below MRL2025-03-17
PFBAND—Below MRL2025-03-17
ADONAND—Below MRL2025-03-17
9Cl-PF3ONSND—Below MRL2025-03-17
11Cl-PF3OUdSND—Below MRL2025-03-17
PFPeAND—Below MRL2025-03-17
PFHxAND—Below MRL2025-03-17
6:2 FTSND—Below MRL2025-03-17
PFDAND—Below MRL2025-03-17
PFOAND4Below MRL2025-03-17
PFOSND4Below MRL2025-03-17
PFHxSND10Below MRL2025-03-17
PFHpAND—Below MRL2025-03-17
PFBSND—Below MRL2025-03-17
PFNAND10Below MRL2025-03-17
PFUnAND—Below MRL2025-03-17
lithiumND—Below MRL2025-03-17
PFEESAND—Below MRL2025-03-17
NFDHAND—Below MRL2025-03-17
PFPeSND—Below MRL2025-03-17
PFHpSND—Below MRL2025-03-17
PFTrDAND—Below MRL2025-03-17
NEtFOSAAND—Below MRL2025-03-17
NMeFOSAAND—Below MRL2025-03-17
HFPO-DAND10Below MRL2025-03-17
PFMBAND—Below MRL2025-03-17
PFTAND—Below MRL2025-03-17
PFOSND4Below MRL2025-06-24
PFOAND4Below MRL2025-06-24
PFDAND—Below MRL2025-06-24
PFHxAND—Below MRL2025-06-24
NEtFOSAAND—Below MRL2025-06-24
PFUnAND—Below MRL2025-06-24
11Cl-PF3OUdSND—Below MRL2025-06-24
9Cl-PF3ONSND—Below MRL2025-06-24
ADONAND—Below MRL2025-06-24
PFDoAND—Below MRL2025-06-24
PFTrDAND—Below MRL2025-06-24
NMeFOSAAND—Below MRL2025-06-24
lithiumND—Below MRL2025-06-24
PFHxSND10Below MRL2025-06-24
PFBSND—Below MRL2025-06-24
PFHpAND—Below MRL2025-06-24
HFPO-DAND10Below MRL2025-06-24
PFNAND10Below MRL2025-06-24
4:2 FTSND—Below MRL2025-06-24
PFTAND—Below MRL2025-06-24
PFEESAND—Below MRL2025-06-24
6:2 FTSND—Below MRL2025-06-24
PFHpSND—Below MRL2025-06-24
NFDHAND—Below MRL2025-06-24
PFMBAND—Below MRL2025-06-24
PFPeAND—Below MRL2025-06-24
PFMPAND—Below MRL2025-06-24
8:2 FTSND—Below MRL2025-06-24
PFBAND—Below MRL2025-06-24
PFPeSND—Below MRL2025-06-24
PFDoAND—Below MRL2025-10-07
HFPO-DAND10Below MRL2025-10-07
PFHxSND10Below MRL2025-10-07
PFNAND10Below MRL2025-10-07
PFOSND4Below MRL2025-10-07
6:2 FTSND—Below MRL2025-10-07
PFBAND—Below MRL2025-10-07
ADONAND—Below MRL2025-10-07
9Cl-PF3ONSND—Below MRL2025-10-07
11Cl-PF3OUdSND—Below MRL2025-10-07
PFHxAND—Below MRL2025-10-07
PFHpSND—Below MRL2025-10-07
PFDAND—Below MRL2025-10-07
PFOAND4Below MRL2025-10-07
PFUnAND—Below MRL2025-10-07
PFMPAND—Below MRL2025-10-07
lithiumND—Below MRL2025-10-07
PFHpAND—Below MRL2025-10-07
8:2 FTSND—Below MRL2025-10-07
PFBSND—Below MRL2025-10-07
PFPeAND—Below MRL2025-10-07
PFMBAND—Below MRL2025-10-07
PFEESAND—Below MRL2025-10-07
PFTAND—Below MRL2025-10-07
NMeFOSAAND—Below MRL2025-10-07
NEtFOSAAND—Below MRL2025-10-07
NFDHAND—Below MRL2025-10-07
PFPeSND—Below MRL2025-10-07
PFTrDAND—Below MRL2025-10-07
4:2 FTSND—Below MRL2025-10-07

Violation history

Monitoring & Reporting - PFOA(PFOA)
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - PFOS(PFOS)
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxS(PFHxS)
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - HFPO-DA (GenX)(HFPO-DA (GenX))
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - PFNA(PFNA)
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - PFBS(PFBS)
2021-04-01 · Resolved · Tier 3
Monitoring & Reporting - PFHxA(PFHxA)
2021-04-01 · Resolved · Tier 3

Next steps

ST JOHNSBURY WATER SYSTEM PFAS results — ST JOHNSBURY, VT | PFAS Comply