New Jersey / Warren County
Phillipsburg tap water
The utility that serves Phillipsburg reported no detections of the PFAS it tested for in 2025.
Where the water comes from
Water for the Phillipsburg system comes from three deep wells in various geologic formations.
From the 2025 water quality report for the Aqua New Jersey, Phillipsburg system.
PFAS ("forever chemicals")
The utility tested for HFPO-DA, PFBS, PFHxS, PFNA, PFOA and PFOS and didn't detect any of them.
Hardness and lead
- Hardness
- 154 mg/L9 grains per gallon, hard
- Lead, 90th percentile of home taps
- 1.3 ppbAction level: 15 ppb
Estimate a water softener size for your home
How it works: grains per day = people × gallons × hardness, with 4 grains added for each ppm of iron. We size up so the softener can run on its salt-saving setting, which gives roughly three quarters of its rated capacity.
Lead mostly comes from service lines and plumbing inside homes, not from the treatment plant. Your own tap can differ from the system-wide number.
What you can do
Your utility's PFAS results were below the federal limits. If you still want a filter, or you're concerned about lead from your home's pipes, look for one certified to NSF/ANSI Standard 53 for the contaminant you care about.
You can check any filter's certification on the certifiers' own sites: NSF, WQA and IAPMO.
Sources. 2025 water quality report, Aqua New Jersey, Phillipsburg system; EPA Safe Drinking Water Information System; EPA UCMR 5. Public water system ID NJ2119001.
Values checked against the original report in September 2026. See how we check the data. Found an error? Tell us and we'll correct it.
Other towns on the same water system
These towns get their water from the Aqua New Jersey, Phillipsburg system, so their results match Phillipsburg's: