Water quality for ZIP code 07831
Warren County, New Jersey, one of 16 ZIP codes in the county. 220 active public water systems serve the county; 113 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Warren County
23 systems, largest firstNon-community systems in Warren County (196: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Acme Shopping Plaza Blairstown Twp |
1,550 | 1 | 0 | |
|
Quick Chek #5 White Twp |
1,410 | 1 | 0 | |
|
NO Warren Reg High Sch Blairstown Twp |
1,200 | 2 | 0 | |
|
Delaware Water Gap Travel Plaza Knowlton Twp |
1,150 | 1 | 0 | |
|
Land of Make Believe Hope Twp |
1,076 | 0 | 0 | |
|
Travel Centers of America Knowlton Twp |
1,070 | 2 | 0 | |
|
Belvidere Shopping Plaza White Twp |
949 | 0 | 0 | |
|
McDonalds of Clinton Washington Twp |
842 | 1 | 0 | |
|
Mansfield Twp Elementary Mansfield Twp |
820 | 0 | 0 | |
|
McDonalds Columbia Knowlton Twp |
810 | 0 | 0 | |
|
D S M Nutritional Products INC White Twp |
636 | 1 | 0 | |
|
Dunkin Donuts Lopatcong Twp |
614 | 0 | 0 | |
|
Mamma Maria Washington Twp |
515 | 3 | 1 | |
|
White Township Dunkin Donuts White Twp |
513 | 0 | 0 | |
|
Hope Tree Dunkin Donuts Hope Twp |
507 | 0 | 0 | |
|
World Apostolate of Fati Washington Twp |
507 | 0 | 0 | |
|
Del River Family Cmp Grn Knowlton Twp |
506 | 1 | 1 | |
|
Mobil/7-Eleven Washington Twp |
506 | 3 | 1 | |
|
Njdot Route 80 Rest Area Knowlton Twp |
500 | 0 | 0 | |
|
Lakeland Plaza White Twp |
418 | 0 | 0 | |
|
Oakwood Bowling Lanes & Sports Washington Twp |
412 | 0 | 0 | |
|
White Twp Consolidated School White Twp |
410 | 4 | 1 | |
|
Kittatinny Visitor Center Knowlton Twp |
403 | 2 | 1 | |
|
Harmony Twp Elementary School Harmony Twp |
353 | 1 | 0 | |
|
Camp NO BE BO Sco (shower Well) Hardwick Twp |
350 | 1 | 0 | |
|
Camp No-Be-Bo-Sco (kitchen) Hardwick Twp |
350 | 0 | 0 | |
|
Great Meadows Middle Independence Twp |
348 | 1 | 1 | |
|
Oxford Furnace Lake Oxford Twp |
310 | 1 | 0 | |
|
Dept of Interior/delaware Water Gap Nra Hardwick Twp |
305 | 2 | 1 | |
|
Sunmart Sunoco Station & Convenience Sto Mansfield Twp |
303 | 0 | 0 | |
|
Mansfield Twp Municipal Comple Mansfield Twp |
295 | 0 | 0 | |
|
Fountain Mall Blairstown Twp |
282 | 2 | 0 | |
|
Independence Centralschool Independence Twp |
260 | 0 | 0 | |
|
Rdj Service Independence Twp |
258 | 0 | 0 | |
|
Belvidere Regional Pool Belvidere Town |
257 | 0 | 0 | |
|
Island Dragway Independence Twp |
255 | 1 | 1 | |
|
Knowlton Twp Elementary Knowlton Twp |
250 | 0 | 0 | |
|
Worthington State Park Hardwick Twp |
250 | 1 | 1 | |
|
Blairstown Commons Blairstown Twp |
238 | 2 | 1 | |
|
Hope Twp Elementary School Hope Twp |
228 | 2 | 0 | |
|
Race Farm Blairstown Twp |
208 | 0 | 0 | |
|
The Log Cabin Knowlton Twp |
207 | 1 | 1 | |
|
County of Warren Library North Independence Twp |
206 | 0 | 0 | |
|
Nykuns Store & Bar Independence Twp |
206 | 0 | 0 | |
|
Warren CO Library-Cdh Branch Blairstown Twp |
205 | 1 | 0 | |
|
7 Eleven Knowlton Twp |
204 | 2 | 2 | |
|
Abundant Life Community Church Mansfield Twp |
203 | 1 | 1 | |
|
Evangelical Church/blair Blairstown Twp |
203 | 0 | 0 | |
|
The Doghouse Blairstown Twp |
203 | 0 | 0 | |
|
Frelinghuysen Twp Elm SC Frelinghuysen Twp |
200 | 1 | 0 |
About this data
Water systems are matched to Warren County, the county this ZIP code lies in, largest first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New Jersey records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.