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Hunterdon County, New Jersey: drinking water records

This overview covers 20 ZIP codes and 26 community water systems in Hunterdon County. It also stands in for 3 ZIP codes whose utility has too little EPA data for a page of its own.

In focus20ZIP codes in this overview
Public records. Clearer context.
6
systems in EPA's PFAS survey
5
systems where PFAS was found
5
systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses
13
systems that have reached the lead action level
5
systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems with the most complete records

Water systemPeople servedPFAS survey resultsPFAS foundHealth-based violationsLead, 9 in 10 homes at or below
Nj American Water - Short Hills NJ0712001217,230900703 ppb
Clinton Water Dept NJ100500112,500600504.6 ppb
Flemington Water Department NJ10090014,581240603.4 ppb
Veolia Water New Jersey Lambertville NJ10170013,960120002 ppb
Washington TWP Mua-Hager NJ14380033,458180200 ppb
High Bridge W Dept NJ10140013,300120304.2 ppb
Glen Gardner W Dept NJ10120011,7050031.5 ppb
Stockton Water Department NJ10230016500021.2 ppb
Delaware Township MUA NJ10070015000020 ppb
Senator G.W. Hagedorn Psychiatric Hospit NJ10190022000010 ppb
Little Brook Nursing Convalescent Home NJ10193113600129.1 ppb
Milford W Dept NJ10200011,4530002.5 ppb
Hampton Borough Water Depart NJ10130011,4010001.5 ppb
Nj American Water - Frenchtown NJ10110011,3730000 ppb
Edna Mahan Correctional NJ10250019400003 ppb
Aqua Nj - Califon NJ10040019360000 ppb
Aqua Nj - Riegel Ridge NJ10150036210000 ppb
Hunterdon Care Center NJ10213632840001.6 ppb
Rosemont Water Company NJ10070022560000 ppb
Aqua Nj - Bunnvale NJ10190012520002.5 ppb
Nj American Water - Oldwick NJ10240012460000 ppb
Country Arch Care Center NJ10253131900002.6 ppb
Aqua Nj - Fox Hill NJ10150041720000 ppb
Rolling Hills Care Center NJ1006302970000 ppb
Camelot at Spruce Ridge NJ1019003850000 ppb

ZIP reports in Hunterdon County

No ZIP report in this county is published yet.

These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 08551, 08802, 08858.

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

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