MOUNTAIN LAKES WATER DEP
NJ · PWS ID NJ1425001 · Community water system
82
contaminants tested
22
detected
4,012
people served
PFAS detected
“Forever chemicals” from UCMR-5 — the only fresh nationwide measurements (2023–2025).
| Contaminant | Max | Detection rate | Period |
|---|---|---|---|
| PFOA | 0.0133 ug/L | 7/7 | 2025 |
| PFPeA | 0.0030 ug/L | 1/7 | 2025 |
Other contaminants detected
| Contaminant | Max | Detection rate | Source | Period |
|---|---|---|---|---|
| Nitrate-Nitrite | 3040 UG/L | 64/64 | SYR4 | 2012–2019 |
| COPPER, FREE | 1240 UG/L | 58/68 | SYR4 | 2013–2019 |
| Chloroform | 3.7 UG/L | 39/150 | SYR4 | 2012–2019 |
| Lead | 11 UG/L | 31/60 | SYR4 | 2013–2019 |
| Dibromochloromethane | 5.8 UG/L | 28/150 | SYR4 | 2012–2019 |
| Bromoform | 3.7 UG/L | 26/150 | SYR4 | 2012–2019 |
| TTHM | 16.3 UG/L | 20/22 | SYR4 | 2012–2019 |
| Bromodichloromethane | 5.9 UG/L | 17/150 | SYR4 | 2012–2019 |
| Fluoride | 210 UG/L | 14/16 | SYR4 | 2014–2017 |
| LEAD SUMMARY | 0.0090 mg/L | 14/14 | LCR | 2025 |
| Total Haloacetic Acids (HAA5) | 5.19 UG/L | 12/22 | SYR4 | 2012–2019 |
| Dibromoacetic acid | 5.19 UG/L | 11/22 | SYR4 | 2012–2019 |
| Barium | 20 UG/L | 8/8 | SYR4 | 2014–2017 |
| Chromium | 1 UG/L | 6/8 | SYR4 | 2014–2017 |
| Arsenic | 1 UG/L | 3/40 | SYR4 | 2012–2019 |
| Combined Uranium | 1.26 UG/L | 3/4 | SYR4 | 2015 |
| Gross Alpha, Excl. Radon and U | 0.8442 PCI/L | 3/4 | SYR4 | 2015 |
| Combined Radium (-226 and -228) | 1.58 PCI/L | 2/4 | SYR4 | 2015 |
| Dichloroacetic Acid | 1.5 UG/L | 2/22 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 1.53 UG/L | 2/22 | SYR4 | 2012–2019 |
60 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 FTS6:2 FTS8:2 FTS9Cl-PF3ONSADONAAntimony, TotalBenzeneBeryllium, TotalCHLOROBENZENECYANIDECadmiumCarbon tetrachlorideDICHLOROMETHANEETHYLENE DIBROMIDEEthylbenzeneHFPO-DAMercuryMonobromoacetic acidMonochloroacetic acidNEtFOSAANFDHANMeFOSAAPFBAPFBSPFDAPFDoAPFEESAPFHpAPFHpSPFHxAPFHxSPFMBAPFMPAPFNAPFOSPFPeSPFTAPFTrDAPFUnASeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl chlorideXylenes, Totalcis-1,2-Dichloroethylenelithiumo-Dichlorobenzenep-Dichlorobenzenetrans-1,2-Dichloroethylene
Areas served
BOONTON TWP.-1402DENVILLE TWP.-1408MOUNTAIN LAKES BORO-1425PARSIPPANY TROY-HILLS-1429