Nitrate violations in New Jersey
303 active public water systems in New Jersey had a Nitrate violation in the past three years, 21 of them still unresolved. What Nitrate is and why it matters.
Health effects: Methemoglobinemia in infants under 6 months: gut bacteria convert nitrate to nitrite, which blocks oxygen transport in blood. Pregnant women should also take precautions. Chronic adult exposure at elevated levels may increase cancer risk.
Systems with a Nitrate violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Wawa Store #759 Maurice River Twp · Cumberland County |
2,949 | 4 | 0 | |
|
Wawa #920 Egg Harbor Twp · Atlantic County |
2,306 | 1 | 0 | |
|
Custard Coral Millville City · Cumberland County |
308 | 1 | 0 | |
|
Pine Needle Park Galloway Twp · Atlantic County |
201 | 3 | 0 | |
|
Cvs of Byram Byram Twp · Sussex County |
194 | 2 | 0 | |
|
Liberty Food Mart Raritan Twp · Hunterdon County |
155 | 2 | 1 | |
|
Bridgeton Gulf Deerfield Twp · Cumberland County |
104 | 2 | 1 | |
|
Tony's Famous Pizzeria Rockaway Twp · Morris County |
102 | 2 | 0 | |
|
Knesses Bais Levi Lakewood Twp · Ocean County |
100 | 5 | 1 | |
|
Princeton Elks 2129 Montgomery Twp · Somerset County |
90 | 2 | 1 | |
|
The Perryville Inn Union Twp · Hunterdon County |
81 | 2 | 1 | |
|
Wantage Professional Center Wantage Twp · Sussex County |
70 | 2 | 0 | |
|
Highlands Family Health Center Union Twp · Hunterdon County |
62 | 2 | 0 | |
|
Eden Autism Clayton Center West Windsor Twp · Mercer County |
60 | 8 | 2 | |
|
The Pickwickan Tavern & Smokery Buena Vista Twp · Atlantic County |
60 | 2 | 1 | |
|
Bellview Winery Buena Boro · Atlantic County |
57 | 1 | 0 | |
|
Congregation Vorka Education Center Lakewood Twp · Ocean County |
55 | 8 | 3 | |
|
Elizabethtown Gas CO Franklin Twp · Warren County |
55 | 2 | 0 | |
|
Veolia Water New Jersey Walnut Hills Vernon Twp · Sussex County |
53 | 1 | 0 | |
|
Qis Inc. Deerfield Twp · Cumberland County |
36 | 2 | 1 | |
|
Mountain View 78 Union Twp · Hunterdon County |
32 | 3 | 1 | |
|
Trenton Water Works Ewing Twp, Hamilton Twp, Hopewell Twp.1106- and 2 more · Mercer County |
217,000 | 8 | 2 | |
|
Ridgewood Water Ridgewood Twp · Bergen County |
61,700 | 6 | 2 | |
|
Aqua NJ Hamilton Square Hamilton Twp · Mercer County |
39,128 | 4 | 2 | |
|
South River W Dept South River Boro · Middlesex County |
16,000 | 6 | 2 | |
|
Rockaway Twp Water Dept Rockaway Twp · Morris County |
14,000 | 5 | 1 | |
|
NJ American Water Washington/oxford Washington Boro · Warren County |
10,719 | 2 | 0 | |
|
Waldwick Water Dept Waldwick Boro · Bergen County |
10,208 | 2 | 0 | |
|
Keansburg Water & Sewer Dept. Keansburg Boro · Monmouth County |
10,105 | 5 | 2 | |
|
Ringwood Water Department Ringwood Boro · Passaic County |
9,327 | 6 | 3 | |
|
Pitman Water Department Glassboro Boro, Mantua Twp, Pitman Boro · Gloucester County |
7,896 | 3 | 0 | |
|
Harvey Cedars Water Dept Harvey Cedars Boro · Ocean County |
6,600 | 4 | 1 | |
|
MT Olive Villages Water Mount Olive Twp · Morris County |
5,000 | 11 | 2 | |
|
Riverdale Boro Water Dep Riverdale Boro · Morris County |
4,103 | 3 | 0 | |
|
Mountain Lakes Water Dep Boonton Twp, Denville Twp, Mountain Lakes Boro and 1 more · Morris County |
4,012 | 4 | 1 | |
|
Stanhope W Dept Stanhope Boro · Sussex County |
3,730 | 5 | 0 | |
|
Netcong Water Dept Netcong Boro · Morris County |
3,342 | 2 | 0 | |
|
Upper Deerfield Twp Water Dept Upper Deerfield Twp · Cumberland County |
3,100 | 3 | 0 | |
|
Ogdensburg W Dept Ogdensburg Boro · Sussex County |
2,800 | 3 | 1 | |
|
Englewood Hospital Englewood City · Bergen County |
2,600 | 5 | 0 | |
|
Lowes Retail Store #1976 Hampton Twp · Sussex County |
2,144 | 2 | 1 | |
|
Lake Lenape Water CO Andover Twp · Sussex County |
1,250 | 7 | 1 | |
|
NO Warren Reg High Sch Blairstown Twp · Warren County |
1,200 | 2 | 0 | |
|
Stillwater Water District 1 Stillwater Twp · Sussex County |
1,200 | 10 | 1 | |
|
Corner Stone Court Hopewell Twp.1106- · Mercer County |
940 | 1 | 0 | |
|
Bass River ST Pk-Beach C Bass River Twp · Burlington County |
900 | 3 | 1 | |
|
Bishop & Bishop (well #2 Readington Twp · Hunterdon County |
895 | 2 | 0 | |
|
McDonalds of Clinton Washington Twp · Warren County |
842 | 1 | 0 | |
|
Lafayette Township School Lafayette Twp · Sussex County |
818 | 0 | 0 | |
|
Washington Crossing State PK Stone Barn Hopewell Twp.1106- · Mercer County |
720 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Nitrate, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Nitrate alone.
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.