Water Quality in New Jersey
555 water systems • 298 cities • EPA SDWIS Data
555
Water Systems
19,332
Total Violations
1,125
Health-Based Violations
8,881,952
Population Served
Overview
New Jersey has 555 active community water systems serving 8,881,952 people. These systems have accumulated 19,332 EPA Safe Drinking Water Act violations on record, of which 1,125 are health-based violations (meaning a contaminant exceeded safe levels).
Common contaminants found in violations: E. coli, Disinfection Byproducts, Chlorine, Gross Alpha, Trichloroethylene, HAA5, cis-1,2-Dichloroethylene, TTHM, Fecal Coliform, Total Organic Carbon.
Cities with Most Violations in New Jersey
| # | City | Violations | Health-Based | Water Systems | Population |
|---|---|---|---|---|---|
| 1 | Budd Lake | 1,262 | 39 | 12 | 21,467 |
| 2 | Hamilton | 485 | 5 | 24 | 143,672 |
| 3 | Bridgeton | 447 | 57 | 4 | 23,528 |
| 4 | Haworth | 443 | 20 | 32 | 817,526 |
| 5 | Turnersville | 362 | 0 | 1 | 48,000 |
| 6 | Lake Hopatcong | 303 | 28 | 3 | 13,090 |
| 7 | Pemberton | 268 | 5 | 5 | 17,116 |
| 8 | Ramsey | 265 | 0 | 1 | 15,207 |
| 9 | Waldwick | 256 | 0 | 1 | 10,208 |
| 10 | Brick | 249 | 6 | 1 | 207 |
Largest Cities in New Jersey
| # | City | Population | Violations | Water Systems |
|---|---|---|---|---|
| 1 | Haworth | 817,526 | 443 | 32 |
| 2 | Brtidgewater | 615,430 | 5 | 1 |
| 3 | Colts Neck | 382,793 | 34 | 5 |
| 4 | Clifton | 351,601 | 32 | 5 |
| 5 | Delran | 347,023 | 47 | 9 |
| 6 | Hoboken | 314,000 | 8 | 2 |
| 7 | Newark | 294,274 | 33 | 1 |
| 8 | Egg Harbor Township | 252,007 | 95 | 5 |
| 9 | Iselin | 233,376 | 24 | 1 |
| 10 | Rio Grande | 219,708 | 115 | 5 |
All Cities in New Jersey
| City | Population | Violations | Health Violations | Contaminants |
|---|---|---|---|---|
| Haworth | 817,526 | 443 | 20 | Chlorine Dioxide, Disinfection Byproducts, cis-1,2-Dichloroethylene |
| Brtidgewater | 615,430 | 5 | 0 | |
| Colts Neck | 382,793 | 34 | 6 | E. coli, TTHM |
| Clifton | 351,601 | 32 | 5 | Chlorine, Disinfection Byproducts, TTHM |
| Delran | 347,023 | 47 | 0 | |
| Hoboken | 314,000 | 8 | 1 | E. coli |
| Newark | 294,274 | 33 | 26 | Disinfection Byproducts, E. coli, Fecal Coliform +2 more |
| Egg Harbor Township | 252,007 | 95 | 6 | Disinfection Byproducts |
| Iselin | 233,376 | 24 | 1 | Disinfection Byproducts |
| Rio Grande | 219,708 | 115 | 0 | |
| Short Hills | 217,760 | 3 | 0 | |
| Trenton | 217,000 | 245 | 23 | Disinfection Byproducts, E. coli, Fecal Coliform +2 more |
| Atlantic City | 152,739 | 63 | 5 | E. coli |
| Hamilton | 143,672 | 485 | 5 | Disinfection Byproducts, Fecal Coliform |
| Bound Brook | 135,619 | 3 | 0 | |
| Toms River | 123,184 | 7 | 0 | |
| Kearny | 104,664 | 15 | 2 | Disinfection Byproducts |
| Brick Twp | 86,898 | 6 | 0 | |
| Marlboro | 75,676 | 37 | 2 | Total Haloacetic Acids (HAA5) |
| East Orange | 75,000 | 219 | 0 | |
| Pennsauken | 71,644 | 92 | 0 | |
| Old Bridge | 68,000 | 34 | 0 | |
| Cedar Knolls | 62,349 | 68 | 2 | TTHM |
| Ridgewood | 61,700 | 62 | 1 | Disinfection Byproducts |
| Somerset | 57,150 | 75 | 5 | Chlorine, Disinfection Byproducts |
| New Brunswick | 55,000 | 83 | 3 | Disinfection Byproducts, TTHM |
| Wayne | 55,000 | 17 | 0 | |
| Perth Amboy | 52,328 | 52 | 5 | Disinfection Byproducts, HAA5, TTHM |
| Parsippany | 50,640 | 69 | 2 | Disinfection Byproducts |
| Franklin | 49,705 | 70 | 0 | |
| East Brunswick Twp | 48,474 | 21 | 2 | Disinfection Byproducts |
| Turnersville | 48,000 | 362 | 0 | |
| Haskell | 47,831 | 25 | 3 | Disinfection Byproducts |
| Bloomfield | 47,315 | 72 | 33 | Disinfection Byproducts, E. coli, Fecal Coliform +2 more |
| Camden | 46,585 | 33 | 4 | Disinfection Byproducts |
| Monmouth Junction | 46,137 | 42 | 4 | Disinfection Byproducts |
| Manahawkin | 45,827 | 113 | 0 | |
| Marlton | 45,538 | 3 | 0 | |
| Sayreville | 45,345 | 83 | 0 | |
| Miount Laurel | 41,743 | 11 | 0 | |
| Freehold | 41,485 | 68 | 3 | Disinfection Byproducts |
| Manchester | 40,893 | 106 | 8 | Contaminant 2931, HAA5, Total Organic Carbon |
| Avalon | 39,839 | 8 | 0 | |
| Braddock | 39,346 | 97 | 0 | |
| Nutley | 38,527 | 86 | 13 | Disinfection Byproducts, E. coli, Total Haloacetic Acids (HAA5) |
| Jackson | 38,214 | 66 | 5 | Chlorine Dioxide |
| Vineland | 37,920 | 167 | 26 | Contaminant 2946, Disinfection Byproducts, HAA5 +2 more |
| Monroe Township | 36,000 | 57 | 0 | |
| Belleville | 35,129 | 131 | 36 | Disinfection Byproducts, E. coli, Fecal Coliform +2 more |
| Willingbor0 | 35,000 | 4 | 0 | |
| Cape May | 35,000 | 19 | 3 | Disinfection Byproducts |
| Edison | 35,000 | 29 | 3 | E. coli, Fecal Coliform |
| Fair Lawn Boro | 34,947 | 114 | 4 | Disinfection Byproducts, Fecal Coliform |
| Burlington | 32,429 | 23 | 10 | Disinfection Byproducts, TTHM, Total Haloacetic Acids (HAA5) |
| Stone Harbor | 30,850 | 21 | 0 | |
| Deptford | 30,561 | 98 | 0 | |
| Garfield | 30,487 | 24 | 1 | cis-1,2-Dichloroethylene |
| Orange | 30,134 | 21 | 1 | Disinfection Byproducts |
| Brant Beach | 29,625 | 178 | 0 | |
| Forked River | 29,000 | 57 | 3 | Disinfection Byproducts |
| Jb Mdl | 27,895 | 149 | 3 | Disinfection Byproducts |
| Dover | 27,806 | 24 | 0 | |
| Lakewood | 27,802 | 49 | 1 | Chlorine |
| Millville | 27,500 | 115 | 3 | Disinfection Byproducts |
| Livingston | 27,391 | 92 | 1 | Chlorine |
| Rahway | 27,300 | 6 | 0 | |
| Mahwah | 26,777 | 7 | 1 | Disinfection Byproducts |
| Barnegat | 26,285 | 42 | 0 | |
| Williamstown | 26,179 | 21 | 0 | |
| Wall Twp | 26,030 | 15 | 3 | Disinfection Byproducts |
| East Windsor Township | 25,000 | 16 | 3 | HAA5 |
| Lavallette | 25,000 | 15 | 0 | |
| Point Pleaseant Beach | 24,520 | 59 | 1 | Fecal Coliform |
| Glassboro | 24,244 | 33 | 1 | Disinfection Byproducts |
| Little Egg Harbor | 24,215 | 4 | 0 | |
| Bridgeton | 23,528 | 447 | 57 | Disinfection Byproducts, HAA5, Total Organic Carbon |
| Fiar Lawn | 23,500 | 23 | 0 | |
| Mays Landing | 23,190 | 90 | 8 | Disinfection Byproducts |
| Hackettstown | 22,185 | 87 | 0 | |
| Ventor City | 22,150 | 32 | 0 | |
| Montville | 22,046 | 57 | 9 | Fecal Coliform |
| West Deptford Township | 22,000 | 29 | 1 | Disinfection Byproducts |
| Seaside Park | 21,600 | 7 | 0 | |
| Budd Lake | 21,467 | 1,262 | 39 | Disinfection Byproducts, E. coli |
| Newton | 21,165 | 234 | 8 | Chlorine Dioxide, Disinfection Byproducts, TTHM +1 more |
| Rockaway | 21,066 | 42 | 0 | |
| Moorestown | 21,036 | 113 | 4 | Disinfection Byproducts, E. coli |
| Cherry Hill | 20,945 | 17 | 0 | |
| Lyndhurst | 20,500 | 9 | 0 | |
| Elmwood Park Boro | 20,374 | 19 | 3 | TTHM |
| Belmar | 20,000 | 38 | 3 | Disinfection Byproducts |
| Beach Haven | 20,000 | 10 | 0 | |
| Seaside Heights | 20,000 | 4 | 0 | |
| Point Pleasant | 19,600 | 103 | 0 | |
| Sparta | 19,585 | 171 | 7 | Disinfection Byproducts |
| Hawthorne | 19,458 | 34 | 3 | Chlorine Dioxide, Disinfection Byproducts |
| Maple Shade | 19,400 | 20 | 3 | Disinfection Byproducts |
| Bordentown | 18,321 | 102 | 2 | Disinfection Byproducts |
| Woodland Park | 18,000 | 59 | 17 | Disinfection Byproducts, TTHM |
| Keansburg | 17,605 | 213 | 1 | Disinfection Byproducts |
| Medford | 17,272 | 129 | 1 | Chlorine |
| Pemberton | 17,116 | 268 | 5 | E. coli |
| South Orange | 16,964 | 16 | 0 | |
| Park Ridge | 16,466 | 13 | 0 | |
| Spring Lake Heights | 16,270 | 13 | 0 | |
| South River | 16,000 | 55 | 14 | Disinfection Byproducts, Fecal Coliform |
| Denville | 15,881 | 48 | 0 | |
| Madison | 15,820 | 14 | 0 | |
| Sea Isle City | 15,800 | 12 | 0 | |
| Pompton Plains | 15,473 | 73 | 3 | TTHM, Total Haloacetic Acids (HAA5) |
| Waretown | 15,419 | 15 | 0 | |
| Ramsey | 15,207 | 265 | 0 | |
| Randolph Twp | 14,820 | 39 | 0 | |
| Brigantine | 14,450 | 37 | 2 | Disinfection Byproducts |
| Harrison | 14,425 | 8 | 0 | |
| Highland Park | 14,000 | 5 | 1 | TTHM |
| Mansquan | 14,000 | 22 | 4 | Disinfection Byproducts |
| Verona | 13,641 | 90 | 13 | TTHM |
| Clinton | 13,525 | 131 | 0 | |
| Pennsville | 13,500 | 147 | 0 | |
| Saddle Brook | 13,155 | 25 | 3 | Disinfection Byproducts |
| Lake Hopatcong | 13,090 | 303 | 28 | Disinfection Byproducts, E. coli |
| Berlin | 12,991 | 37 | 2 | Fecal Coliform |
| Cedar Grove | 12,900 | 18 | 10 | Disinfection Byproducts |
| Oakland | 12,754 | 29 | 0 | |
| Mantua | 12,675 | 92 | 9 | E. coli |
| Gloucester | 12,460 | 18 | 0 | |
| Hammonton | 12,153 | 69 | 2 | E. coli |
| Westmont | 11,938 | 37 | 0 | |
| Washington | 11,793 | 11 | 0 | |
| Berkeley Twp | 11,792 | 23 | 2 | E. coli |
| Wallington | 11,583 | 38 | 0 | |
| Woodbury | 11,513 | 110 | 6 | E. coli |
| Pompton Lakes | 11,435 | 46 | 0 | |
| East Hanover Township | 11,393 | 34 | 4 | Disinfection Byproducts, E. coli |
| Lincoln Park | 11,300 | 31 | 11 | Fecal Coliform, TTHM |
| Short Mills | 11,247 | 3 | 0 | |
| Florence | 11,214 | 39 | 0 | |
| West Caldwell | 10,884 | 87 | 7 | Disinfection Byproducts, TTHM |
| Totowa Borough | 10,804 | 19 | 0 | |
| Beachwood | 10,802 | 100 | 0 | |
| Longport | 10,777 | 3 | 0 | |
| Villas | 10,315 | 27 | 0 | |
| Wanaque | 10,266 | 118 | 11 | Fecal Coliform |
| Pine Hill | 10,233 | 10 | 0 | |
| Waldwick | 10,208 | 256 | 0 | |
| Manalapan | 10,140 | 21 | 0 | |
| Surf City | 10,000 | 50 | 0 | |
| Mickleton | 9,900 | 1 | 0 | |
| Boonton | 9,837 | 111 | 2 | Disinfection Byproducts |
| Landing | 9,721 | 29 | 9 | Disinfection Byproducts |
| Bellmawr | 9,522 | 6 | 0 | |
| Mount Arlington | 9,373 | 76 | 0 | |
| Ringwood | 9,327 | 51 | 11 | Disinfection Byproducts, Fecal Coliform |
| Aberdeen Township | 9,184 | 61 | 3 | TTHM |
| Matawan | 9,084 | 26 | 5 | Disinfection Byproducts |
| Chatam | 8,962 | 6 | 0 | |
| Florham Park | 8,846 | 128 | 0 | |
| Long Valley | 8,444 | 63 | 1 | Fecal Coliform |
| Spotswood | 8,300 | 33 | 0 | |
| Clayton | 8,179 | 10 | 0 | |
| Pitman | 7,896 | 15 | 0 | |
| Bloomingdale Boro | 7,742 | 27 | 5 | Fecal Coliform, TTHM |
| Butler | 7,735 | 64 | 10 | Chlorine, Disinfection Byproducts, E. coli +1 more |
| Brielle | 7,436 | 16 | 0 | |
| Fairfield | 7,400 | 56 | 0 | |
| Hopatcong | 7,224 | 39 | 0 | |
| Milltown | 7,000 | 60 | 19 | Disinfection Byproducts, Fecal Coliform, TTHM |
| Riverdale | 6,862 | 28 | 0 | |
| Upper Twp | 6,710 | 7 | 0 | |
| Harvey Cedars | 6,360 | 38 | 0 | |
| North Caldwell | 6,208 | 37 | 0 | |
| Salem City | 6,199 | 110 | 0 | |
| Paulsboro | 6,097 | 27 | 1 | Disinfection Byproducts |
| Wharton | 6,011 | 1 | 0 | |
| Westville | 6,000 | 32 | 5 | Disinfection Byproducts |
| Highland Lakes | 5,517 | 2 | 2 | Disinfection Byproducts |
| Allamuchy Township | 5,423 | 55 | 0 | |
| Highstown | 5,400 | 3 | 0 | |
| Roseland | 5,300 | 23 | 0 | |
| Southampton | 5,026 | 77 | 4 | E. coli |
| Avon | 5,000 | 13 | 2 | Disinfection Byproducts, Fecal Coliform |
| Kinnelon | 4,948 | 44 | 9 | Disinfection Byproducts, E. coli, TTHM |
| Gibbstown | 4,921 | 72 | 0 | |
| Landsville | 4,880 | 4 | 0 | |
| Flemington | 4,865 | 81 | 0 | |
| Lambertville | 4,820 | 106 | 4 | Chlorine Dioxide, Disinfection Byproducts |
| Stanhope | 4,817 | 174 | 0 | |
| Woodbine | 4,616 | 92 | 6 | Disinfection Byproducts |
| Woodstown | 4,597 | 57 | 0 | |
| West Cape May | 4,427 | 14 | 0 | |
| Atlantic Highlands | 4,385 | 7 | 0 | |
| Mine Hill | 4,300 | 28 | 1 | Chlorine |
| Barnegat Light | 4,148 | 11 | 0 | |
| Hohokus Boro | 4,060 | 21 | 0 | |
| Cape May Point | 4,000 | 16 | 0 | |
| Wenonah | 3,973 | 23 | 2 | Disinfection Byproducts |
| Hamburg | 3,382 | 56 | 0 | |
| Netcong | 3,342 | 6 | 0 | |
| High Bridge | 3,300 | 70 | 0 | |
| Ocean Gate | 3,200 | 49 | 0 | |
| Robbinsville | 3,180 | 37 | 0 | |
| National Park | 3,144 | 6 | 0 | |
| Seabrook | 3,100 | 96 | 15 | Selenium |
| Woodbury Heights | 3,008 | 8 | 0 | |
| Lake Como | 3,000 | 15 | 4 | TTHM |
| Ogdensburg | 2,800 | 22 | 0 | |
| Lakehurst | 2,776 | 8 | 0 | |
| Hardyston Twp | 2,732 | 39 | 3 | Chlorine Dioxide, Disinfection Byproducts |
| Pennington | 2,600 | 140 | 0 | |
| Alpha | 2,530 | 38 | 2 | Disinfection Byproducts |
| Ancora | 2,506 | 127 | 25 | Disinfection Byproducts, Fecal Coliform |
| Englishtown | 2,504 | 16 | 0 | |
| East Newark | 2,406 | 17 | 0 | |
| Brooklawn | 2,300 | 50 | 0 | |
| Andover | 2,216 | 42 | 7 | Selenium |
| Sussex | 2,201 | 70 | 24 | Contaminant 1009, Disinfection Byproducts, E. coli +2 more |
| New Vernon | 2,200 | 61 | 0 | |
| Pine Beach | 2,130 | 1 | 0 | |
| Hopewell | 2,035 | 27 | 4 | Disinfection Byproducts |
| New Lisbon | 2,014 | 45 | 4 | Disinfection Byproducts |
| Helmetta | 2,000 | 25 | 0 | |
| Montague Township | 1,983 | 24 | 0 | |
| Glen Gardner | 1,905 | 93 | 5 | Disinfection Byproducts, Selenium |
| Farmingdale | 1,854 | 12 | 0 | |
| Fairton | 1,841 | 30 | 0 | |
| Pemeberton | 1,771 | 64 | 0 | |
| Island Heights Boro | 1,750 | 17 | 1 | Chlorine Dioxide |
| Branchville | 1,720 | 109 | 3 | Disinfection Byproducts |
| Leesburg | 1,679 | 13 | 0 | |
| Winfield Twp | 1,600 | 6 | 0 | |
| Pittsgrove | 1,576 | 101 | 7 | Disinfection Byproducts, Selenium |
| Farmington Hills | 1,493 | 4 | 0 | |
| Milford Boro | 1,453 | 16 | 0 | |
| Califon | 1,437 | 119 | 19 | Disinfection Byproducts |
| Atco | 1,399 | 17 | 0 | |
| Stockholm | 1,300 | 115 | 6 | Disinfection Byproducts |
| Lawrenceville | 1,200 | 11 | 1 | Disinfection Byproducts |
| Convent Station | 1,100 | 8 | 0 | |
| Wrightstown | 943 | 31 | 2 | E. coli |
| Pomona | 848 | 176 | 0 | |
| Egg Harbor Twp | 807 | 74 | 3 | Disinfection Byproducts, E. coli |
| Blairstown Township | 800 | 13 | 0 | |
| Fortescue | 771 | 5 | 0 | |
| Mount Holly | 700 | 19 | 0 | |
| Fieldsboro | 650 | 16 | 4 | Disinfection Byproducts |
| Stockton | 650 | 52 | 2 | Disinfection Byproducts |
| Lafayette | 550 | 169 | 4 | Disinfection Byproducts, E. coli |
| Sergeantsville | 500 | 16 | 2 | Disinfection Byproducts |
| Highlands | 500 | 20 | 5 | Disinfection Byproducts |
| Wall | 436 | 27 | 0 | |
| Oxford | 430 | 12 | 0 | |
| West Chester | 420 | 39 | 2 | Chlorine Dioxide |
| Pittsford | 410 | 64 | 8 | Disinfection Byproducts, HAA5 |
| Chester | 410 | 50 | 3 | Disinfection Byproducts |
| Phillipsburg | 400 | 28 | 0 | |
| Titusville | 356 | 12 | 0 | |
| Essex Fells | 354 | 19 | 0 | |
| Seaville | 300 | 8 | 1 | Disinfection Byproducts |
| Shamong | 300 | 11 | 0 | |
| Blakely | 300 | 28 | 1 | Chlorine Dioxide |
| Mullica Hill | 291 | 24 | 0 | |
| Jackson Tonwship | 282 | 19 | 0 | |
| Morristown | 270 | 11 | 0 | |
| Howell | 264 | 7 | 0 | |
| Skokie | 260 | 10 | 0 | |
| Elmer | 259 | 95 | 33 | Disinfection Byproducts, HAA5, Selenium +1 more |
| Rosemont | 256 | 7 | 0 | |
| Cedarville | 250 | 15 | 0 | |
| North Haledon | 250 | 10 | 1 | E. coli |
| Pittsgove | 250 | 59 | 22 | PFOS |
| Allamuchy | 232 | 51 | 2 | E. coli |
| Wyckoff | 225 | 1 | 1 | Chlorine |
| Hope | 224 | 7 | 0 | |
| Berwyn | 210 | 9 | 0 | |
| Brick | 207 | 249 | 6 | Disinfection Byproducts |
| Jobstown | 200 | 37 | 0 | |
| Winslow Twp | 200 | 19 | 0 | |
| Pedricktown | 200 | 11 | 0 | |
| Pittstown | 190 | 8 | 0 | |
| Fredon | 175 | 2 | 0 | |
| Hambrug | 175 | 33 | 0 | |
| Passaic City | 165 | 18 | 0 | |
| Egg Haror City | 150 | 42 | 0 | |
| Glenwood | 150 | 34 | 1 | E. coli |
| Cape May Court House | 145 | 93 | 34 | HAA5, Total Organic Carbon |
| Franklinville | 140 | 1 | 0 | |
| Lebanon | 137 | 34 | 0 | |
| Perrineville | 137 | 7 | 0 | |
| Tabernacle | 135 | 3 | 0 | |
| Creamridge | 128 | 11 | 0 | |
| Wantage Twp | 122 | 44 | 4 | E. coli |
| Oceanview | 120 | 21 | 1 | Disinfection Byproducts |
| Apache Junction | 120 | 58 | 1 | E. coli |
| Summit | 100 | 87 | 14 | HAA5, Selenium, Total Organic Carbon |
| Norristown | 100 | 21 | 0 | |
| Oak Ridge | 100 | 15 | 1 | Disinfection Byproducts |
| New Egypt | 100 | 46 | 0 |
Data Sources
Drinking water data from the EPA Safe Drinking Water Information System (SDWIS). Only active community water systems (CWS) serving 100+ people are included.