PFAS Comply

MOUNTAIN LAKES WATER DEP

PWSID: NJ1425001 · RIVERDALE, NJ · Serving 4,012 people

Type: CWSOwner: LSource: GW
Settlement eligible
May qualify for 3M/DuPont settlement funds
Check claims portal →
Exceeds MCL

One or more PFAS compounds exceed EPA Maximum Contaminant Levels. Corrective action required by 2031.

Key contaminants vs MCL

PFOA13.3 ppt(MCL: 4 ppt)

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

Detection summary

2
PFAS compounds detected
13.3 ppt
Highest single detection
2025-08-26
Latest sample date
partial
Data completeness

All PFAS detection results

Source: EPA UCMR5 (UCMR5)

ContaminantResult (ppt)MCL (ppt)StatusSample date
PFHxSND10Below MRL2025-01-13
PFMBAND—Below MRL2025-07-15
PFEESAND—Below MRL2025-07-15
NFDHAND—Below MRL2025-07-15
PFPeSND—Below MRL2025-07-15
PFTAND—Below MRL2025-07-15
PFTrDAND—Below MRL2025-07-15
NEtFOSAAND—Below MRL2025-07-15
PFBSND—Below MRL2025-07-15
PFEESAND—Below MRL2025-01-13
PFMBAND—Below MRL2025-01-13
PFPeAND—Below MRL2025-01-13
PFMPAND—Below MRL2025-01-13
8:2 FTSND—Below MRL2025-01-13
4:2 FTSND—Below MRL2025-01-13
6:2 FTSND—Below MRL2025-01-13
PFBAND—Below MRL2025-01-13
ADONAND—Below MRL2025-01-13
11Cl-PF3OUdSND—Below MRL2025-01-13
PFUnAND—Below MRL2025-01-13
lithiumND—Below MRL2025-01-13
HFPO-DAND10Below MRL2025-01-13
PFDoAND—Below MRL2025-01-13
PFOSND4Below MRL2025-01-13
PFNAND10Below MRL2025-01-13
PFHxSND10Below MRL2025-01-13
PFHpAND—Below MRL2025-01-13
PFBSND—Below MRL2025-01-13
NMeFOSAAND—Below MRL2025-01-13
NEtFOSAAND—Below MRL2025-01-13
PFTrDAND—Below MRL2025-01-13
NFDHAND—Below MRL2025-01-13
PFHpSND—Below MRL2025-01-13
PFPeSND—Below MRL2025-01-13
PFTAND—Below MRL2025-01-13
PFHxAND—Below MRL2025-01-13
PFDAND—Below MRL2025-01-13
6:2 FTSND—Below MRL2025-07-15
PFTrDAND—Below MRL2025-07-15
PFHpAND—Below MRL2025-07-15
PFBSND—Below MRL2025-07-15
PFHpSND—Below MRL2025-07-15
PFPeSND—Below MRL2025-07-15
NFDHAND—Below MRL2025-07-15
PFEESAND—Below MRL2025-07-15
PFMBAND—Below MRL2025-07-15
PFPeAND—Below MRL2025-07-15
PFMPAND—Below MRL2025-07-15
PFOSND4Below MRL2025-07-15
4:2 FTSND—Below MRL2025-07-15
PFNAND10Below MRL2025-07-15
PFBAND—Below MRL2025-07-15
HFPO-DAND10Below MRL2025-07-15
ADONAND—Below MRL2025-07-15
9Cl-PF3ONSND—Below MRL2025-07-15
11Cl-PF3OUdSND—Below MRL2025-07-15
PFUnAND—Below MRL2025-07-15
PFHxAND—Below MRL2025-07-15
PFDoAND—Below MRL2025-07-15
PFDAND—Below MRL2025-07-15
PFTAND—Below MRL2025-07-15
8:2 FTSND—Below MRL2025-07-15
lithiumND—Below MRL2025-07-15
PFHxSND10Below MRL2025-07-15
NEtFOSAAND—Below MRL2025-07-15
NMeFOSAAND—Below MRL2025-07-15
PFTrDAND—Below MRL2025-01-13
PFEESAND—Below MRL2025-01-13
NFDHAND—Below MRL2025-01-13
PFBSND—Below MRL2025-01-13
PFPeSND—Below MRL2025-01-13
PFHpSND—Below MRL2025-01-13
PFTAND—Below MRL2025-01-13
PFMPAND—Below MRL2025-01-13
NEtFOSAAND—Below MRL2025-01-13
NMeFOSAAND—Below MRL2025-01-13
PFOSND4Below MRL2025-01-13
PFNAND10Below MRL2025-01-13
lithiumND—Below MRL2025-01-13
PFBAND—Below MRL2025-01-13
PFDoAND—Below MRL2025-01-13
PFUnAND—Below MRL2025-01-13
PFHpAND—Below MRL2025-01-13
11Cl-PF3OUdSND—Below MRL2025-01-13
9Cl-PF3ONSND—Below MRL2025-01-13
PFDAND—Below MRL2025-01-13
PFMBAND—Below MRL2025-01-13
HFPO-DAND10Below MRL2025-01-13
6:2 FTSND—Below MRL2025-01-13
PFHxSND10Below MRL2025-01-13
4:2 FTSND—Below MRL2025-01-13
8:2 FTSND—Below MRL2025-01-13
PFHxAND—Below MRL2025-01-13
ADONAND—Below MRL2025-01-13
PFTrDAND—Below MRL2025-05-05
HFPO-DAND10Below MRL2025-01-13
lithiumND—Below MRL2025-01-13
PFBSND—Below MRL2025-01-13
PFHpAND—Below MRL2025-01-13
PFHxSND10Below MRL2025-01-13
PFNAND10Below MRL2025-01-13
PFOSND4Below MRL2025-01-13
PFDAND—Below MRL2025-01-13
PFDoAND—Below MRL2025-01-13
PFHxAND—Below MRL2025-01-13
PFUnAND—Below MRL2025-01-13
11Cl-PF3OUdSND—Below MRL2025-01-13
NMeFOSAAND—Below MRL2025-05-05
ADONAND—Below MRL2025-01-13
NEtFOSAAND—Below MRL2025-05-05
PFBAND—Below MRL2025-01-13
6:2 FTSND—Below MRL2025-01-13
4:2 FTSND—Below MRL2025-01-13
8:2 FTSND—Below MRL2025-01-13
PFMPAND—Below MRL2025-01-13
PFPeAND—Below MRL2025-01-13
PFMBAND—Below MRL2025-01-13
PFEESAND—Below MRL2025-01-13
NFDHAND—Below MRL2025-01-13
PFPeSND—Below MRL2025-01-13
PFHpSND—Below MRL2025-01-13
PFTAND—Below MRL2025-05-05
9Cl-PF3ONSND—Below MRL2025-01-13
9Cl-PF3ONSND—Below MRL2025-07-15
PFUnAND—Below MRL2025-07-15
PFTAND—Below MRL2025-08-26
PFTrDAND—Below MRL2025-08-26
NEtFOSAAND—Below MRL2025-08-26
NMeFOSAAND—Below MRL2025-08-26
lithiumND—Below MRL2025-07-15
PFBSND—Below MRL2025-07-15
PFHpAND—Below MRL2025-07-15
PFHxSND10Below MRL2025-07-15
PFNAND10Below MRL2025-07-15
PFOSND4Below MRL2025-07-15
PFDAND—Below MRL2025-07-15
HFPO-DAND10Below MRL2025-07-15
PFHxAND—Below MRL2025-07-15
PFHpSND—Below MRL2025-07-15
11Cl-PF3OUdSND—Below MRL2025-07-15
ADONAND—Below MRL2025-07-15
PFBAND—Below MRL2025-07-15
6:2 FTSND—Below MRL2025-07-15
4:2 FTSND—Below MRL2025-07-15
8:2 FTSND—Below MRL2025-07-15
PFMPAND—Below MRL2025-07-15
PFPeAND—Below MRL2025-07-15
PFMBAND—Below MRL2025-07-15
PFEESAND—Below MRL2025-07-15
NFDHAND—Below MRL2025-07-15
PFPeSND—Below MRL2025-07-15
PFDoAND—Below MRL2025-07-15
lithiumND—Below MRL2025-01-13
11Cl-PF3OUdSND—Below MRL2025-01-13
PFTAND—Below MRL2025-01-13
NEtFOSAAND—Below MRL2025-01-13
NMeFOSAAND—Below MRL2025-01-13
PFBSND—Below MRL2025-01-13
PFHpAND—Below MRL2025-01-13
9Cl-PF3ONSND—Below MRL2025-01-13
PFNAND10Below MRL2025-01-13
PFOSND4Below MRL2025-01-13
PFDAND—Below MRL2025-01-13
PFDoAND—Below MRL2025-01-13
PFTrDAND—Below MRL2025-01-13
PFUnAND—Below MRL2025-01-13
8:2 FTSND—Below MRL2025-01-13
PFPeSND—Below MRL2025-01-13
NFDHAND—Below MRL2025-01-13
PFEESAND—Below MRL2025-01-13
PFMBAND—Below MRL2025-01-13
PFHxAND—Below MRL2025-01-13
PFMPAND—Below MRL2025-01-13
PFHpSND—Below MRL2025-01-13
4:2 FTSND—Below MRL2025-01-13
6:2 FTSND—Below MRL2025-01-13
PFBAND—Below MRL2025-01-13
HFPO-DAND10Below MRL2025-01-13
ADONAND—Below MRL2025-01-13
9Cl-PF3ONSND—Below MRL2025-01-13
PFPeAND—Below MRL2025-01-13
PFBAND—Below MRL2025-07-15
PFHxSND10Below MRL2025-07-15
lithiumND—Below MRL2025-07-15
PFDAND—Below MRL2025-07-15
PFDoAND—Below MRL2025-07-15
PFHxAND—Below MRL2025-07-15
PFUnAND—Below MRL2025-07-15
11Cl-PF3OUdSND—Below MRL2025-07-15
9Cl-PF3ONSND—Below MRL2025-07-15
ADONAND—Below MRL2025-07-15
HFPO-DAND10Below MRL2025-07-15
6:2 FTSND—Below MRL2025-07-15
PFHpSND—Below MRL2025-07-15
4:2 FTSND—Below MRL2025-07-15
PFHpAND—Below MRL2025-07-15
NMeFOSAAND—Below MRL2025-07-15
PFNAND10Below MRL2025-07-15
PFOSND4Below MRL2025-07-15
8:2 FTSND—Below MRL2025-07-15
PFMPAND—Below MRL2025-07-15
PFPeAND—Below MRL2025-07-15
PFOA13.34Exceeds2025-01-13
PFOA9.54Exceeds2025-07-15
PFOA94Exceeds2025-07-15
PFOA8.44Exceeds2025-01-13
PFOA8.34Exceeds2025-01-13
PFOA6.54Exceeds2025-01-13
PFOA6.34Exceeds2025-07-15
PFPeA3—2025-01-13

Next steps