Is Mountain Lakes, New Jersey tap water safe?
3 water systems report serving Mountain Lakes. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
C
Boonton Water Dept
Serves 9,532 people · Surface water · Full report →
1 health-based violation in the last 5 years; 18 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
C
Mountain Lakes Water DEP
Serves 4,012 people · Groundwater · Full report →
No health-based violations in the last 5 years; 8 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2025).
A
Boonton Twp Water Dept
Serves 305 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).