County · New Jersey
Warren County, New Jersey: drinking water records
This overview covers 16 ZIP codes and 24 community water systems in Warren County. It also stands in for 5 ZIP codes whose utility has too little EPA data for a page of its own.
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 system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Nj American Water - Short Hills NJ0712001 | 217,230 | 900 | 7 | 0 | 3 ppb |
| Aqua Nj - Phillipsburg NJ2119001 | 26,686 | 120 | 0 | 0 | 0 ppb |
| Hackettstown MUA NJ2108001 | 22,000 | 240 | 0 | 0 | 1 ppb |
| Nj American Water - Washington/Oxford NJ2121001 | 10,719 | 360 | 3 | 0 | 1 ppb |
| Allamuchy TWP Water & Sewer NJ2101001 | 5,423 | 60 | 1 | 0 | 4 ppb |
| Warren Haven Rehabilitation & Nursing Ct NJ2116004 | 430 | 0 | 0 | 1 | 0 ppb |
| Windtryst Apts NJ2123002 | 216 | 0 | 0 | 1 | 0 ppb |
| Highlander Hills Estates NJ2117002 | 120 | 0 | 0 | 2 | 2.2 ppb |
| Riverside MHP NJ2113002 | 85 | 60 | 0 | 0 | 0 ppb |
| Nj American Water - Belvidere NJ2103001 | 2,854 | 0 | 0 | 0 | 0 ppb |
| Alpha Municipal Water Works NJ2102001 | 2,530 | 0 | 0 | 0 | 12 ppb |
| Township of Blairstown DPW NJ2104001 | 800 | 0 | 0 | 0 | 5.9 ppb |
| Veolia Water Nj Independence Highland NJ2112002 | 350 | 0 | 0 | 0 | 3.5 ppb |
| Country View Village, LLC NJ2123003 | 310 | 0 | 0 | 0 | 1.1 ppb |
| Forest Manor Retirement Home NJ2106304 | 224 | 0 | 0 | 0 | 0 ppb |
| Aqua Nj - Warren Glen NJ2120002 | 192 | 0 | 0 | 0 | 1.2 ppb |
| Aqua Nj - Brainards NJ2110001 | 135 | 0 | 0 | 0 | 0 ppb |
| Veolia Water Nj Independence Valley View NJ2112001 | 110 | 0 | 0 | 0 | 4.2 ppb |
| Hillside Village NJ2116002 | 75 | 0 | 0 | 0 | 220 ppb |
| Clover Rest Home NJ2113301 | 64 | 0 | 0 | 0 | 0 ppb |
| Aqua Nj - Riegelsville NJ2120001 | 62 | 0 | 0 | 0 | 0 ppb |
| Oxford Heritage Manor NJ2117003 | 60 | 0 | 0 | 0 | 2.2 ppb |
| Aqua Nj - Harkers Hollow NJ2110003 | 40 | 0 | 0 | 0 | 0 ppb |
| Triple Brook Mobile Home NJ2113003 | 32 | 0 | 0 | 0 | 13.9 ppb |
ZIP reports in Warren 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: 07831, 07833, 07844, 07846, 07880.
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.