All water systems in New York
8,076 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
New York City System New York (c) · Bronx County |
8,271,000 | 1 | 1 | |
|
Suffolk County Water Authority Babylon (t), Brookhaven (t), East Hampton (t) and 6 more · Suffolk County |
1,100,000 | 0 | 0 | |
|
McWa Batavia (t), Brighton (t), Chili (t) and 30 more · Monroe County |
525,262 | 1 | 1 | |
|
Ocwa Syracuse (c) · Onondaga County |
350,000 | 0 | 0 | |
|
Ecwa Direct Amherst (t), Buffalo (c), Cheektowaga (t) and 8 more · Erie County |
313,380 | 0 | 0 | |
|
Buffalo Water Authority Buffalo (c) · Erie County |
276,000 | 2 | 0 | |
|
Veolia Water New York Clarkstown (t) · Rockland County |
270,000 | 0 | 0 | |
|
Liberty Utilities New York Lynbrook Hempstead (t), Lynbrook (v) · Nassau County |
220,000 | 1 | 0 | |
|
Yonkers City Yonkers (c) · Westchester County |
211,569 | 0 | 0 | |
|
Rochester City Rochester (c) · Monroe County |
210,000 | 1 | 1 | |
|
Syracuse City Syracuse (c) · Onondaga County |
192,000 | 3 | 2 | |
|
Veolia Water New York, Inc. Rd-1 Ardsley (v), Bronxville (v), Dobbs Ferry (v) and 6 more · Westchester County |
146,732 | 1 | 0 | |
|
Liberty Utilities New York Merrick Hempstead (t) · Nassau County |
135,000 | 1 | 0 | |
|
Mvwa Mohawk Valley Water Authority Deerfield (t), Marcy (t), New Hartford (t) and 8 more · Oneida County |
126,250 | 0 | 0 | |
|
WA of Western Nassau Hempstead (t), North Hempstead (t) · Nassau County |
120,000 | 0 | 0 | |
|
Town of Hempstead Water Department Hempstead (t) · Nassau County |
110,000 | 0 | 0 | |
|
Albany City Albany (c) · Albany County |
98,000 | 1 | 0 | |
|
Ecwa Amherst Amherst (t) · Erie County |
92,697 | 0 | 0 | |
|
Latham Water District Colonie (t) · Albany County |
85,590 | 0 | 0 | |
|
South Huntington Water District Huntington (t) · Suffolk County |
81,760 | 1 | 0 | |
|
Mount Vernon Water Department Mount Vernon (c) · Westchester County |
73,893 | 0 | 0 | |
|
Tonawanda, Town Water Dept. Kenmore (v), Tonawanda (c) · Erie County |
72,571 | 0 | 0 | |
|
Schenectady City Water Works Schenectady (c) · Schenectady County |
62,000 | 0 | 0 | |
|
Westchester Joint Water Works Westchester County |
59,629 | 1 | 1 | |
|
White Plains City White Plains (c) · Westchester County |
59,559 | 0 | 0 | |
|
Jericho WD Oyster Bay (t) · Nassau County |
58,000 | 1 | 0 | |
|
Veolia Water New York, Inc. Rd-2 Port Chester (v), Rye (t), Rye Brook (v) · Westchester County |
57,301 | 1 | 0 | |
|
Hempstead (v) Hempstead (v) · Nassau County |
56,000 | 1 | 0 | |
|
Elmira Water Board Elmira (c), Elmira (t), Elmira Heights (v) and 1 more · Chemung County |
54,000 | 1 | 0 | |
|
Chatham Fair Water Distribution Chatham (v) · Columbia County |
53,700 | 0 | 0 | |
|
Kiryas Joel Kiryas Joel (v) · Orange County |
51,623 | 3 | 0 | |
|
Troy City PWS Troy (c) · Rensselaer County |
51,401 | 0 | 0 | |
|
Niagara Falls Water Board Niagara Falls (c) · Niagara County |
50,193 | 0 | 0 | |
|
Hicksville WD Oyster Bay (t) · Nassau County |
48,000 | 0 | 0 | |
|
Binghamton, City of Binghamton (c) · Broome County |
47,600 | 0 | 0 | |
|
Jamestown Bpu Jamestown (c) · Chautauqua County |
46,712 | 0 | 0 | |
|
Endicott Municipal Water Works Endicott (v) · Broome County |
45,000 | 0 | 0 | |
|
Freeport (v) Freeport (v) · Nassau County |
45,000 | 0 | 0 | |
|
South Farmingdale WD Oyster Bay (t) · Nassau County |
44,700 | 0 | 0 | |
|
Greenburgh Consolidated WD #1 Greenburgh (t) · Westchester County |
43,312 | 0 | 0 | |
|
Manhasset Lakeville WD North Hempstead (t) · Nassau County |
43,000 | 0 | 0 | |
|
Massapequa WD Massapequa Park (v), Oyster Bay (t) · Nassau County |
43,000 | 0 | 0 | |
|
Poughkeepsie Townwide WD Poughkeepsie (t) · Dutchess County |
43,000 | 0 | 0 | |
|
Greenlawn Water District Huntington (t) · Suffolk County |
42,000 | 3 | 0 | |
|
Yorktown Consold. Water Dist.#1 Yorktown (t) · Westchester County |
36,000 | 1 | 0 | |
|
Clifton Park Water Authority Clifton Park (t) · Saratoga County |
35,000 | 6 | 1 | |
|
Long Beach City Long Beach (c) · Nassau County |
35,000 | 0 | 0 | |
|
Riverhead Water District Riverhead (t) · Suffolk County |
35,000 | 1 | 0 | |
|
Dix Hills Water District Huntington (t) · Suffolk County |
34,522 | 1 | 0 | |
|
Fort Drum Leray (t) · Jefferson County |
34,000 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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 York 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.