New Jersey Tap Water Quality
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Overview
New Jersey packs dense population, heavy industrial legacy, and some of the nation's most protective water rules into one small state: it set the first enforceable PFAS standards in the country and runs aggressive lead-line replacement mandates. Big systems (Newark, Jersey City, NJ American Water, Passaic Valley) meet federal and state standards.
Newark's 2019 lead crisis became a national story and then a national model: the city replaced over 23,000 lead service lines in under three years, faster than any comparable program. PFAS detections remain widespread given the industrial footprint, with treatment installs rolling across the state.
Common Contaminants in New Jersey
Among the most widespread detections in the nation due to industry density; New Jersey's early standards forced treatment years before federal rules
Statewide replacement mandate (10-year deadline) following Newark's crisis and turnaround
Managed within limits; legacy solvent plumes affect some wellfields with air-stripping treatment in place
Violations & Compliance
Compliance among major systems is solid and state oversight is unusually strict. Newark's water now meets lead standards after full replacement; PFAS treatment construction is the state's biggest active compliance program.
City Water Reports in New Jersey
Frequently Asked Questions
Sources & References
The safety rating and guidance on this page draw on the following sources. See our full methodology.
- •US EPA Safe Drinking Water Act regulations
- •EWG Tap Water Database
- •The utility's most recent Consumer Confidence Report (CCR)
- •WHO Guidelines for Drinking-water Quality