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Tap water

New York: drinking water systems

The 2,253 active community water systems in New York on EPA's record, serving 18,308,998 people (EPA's counts). Systems serving more than 500 people have their own page; find yours by name, city, county, ZIP code or PWS ID. EPA's file dated Oct. 23, 2026.

250

250 of 2,253 systems have a health-based violation on EPA's record since Oct. 23, 2023, serving 10,487,692 of the state's 18,308,998 people (57%); 18 are an EPA enforcement priority. EPA lists 53 as currently in violation (EPA's system file of Oct. 23, 2026).

Health-based violations, in EPA's words: “Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.”

Find your water system

    Health-based violations since Oct. 23, 2023, by contaminant or rule

    EPA contaminant code 2805166EPA contaminant code 2806138EPA contaminant code 1017115EPA contaminant code 102864Surface Water Treatment Rule63EPA contaminant code 103241Lead and Copper Rule28LEAD AND COPPER RULE REVISIONS28

    Cities and counties EPA lists, A to Z

    The cities EPA lists as served by each system, with the number of systems that list each; a system for which EPA lists no city is under its county.

    ADAMS (T) 2ALABAMA (T) 2Albany (county) 2ALEXANDER (V) 2ALFRED (V) 3Allegany (county) 1AMHERST (T) 2ANGOLA (V) 3ATTICA (T) 2AUBURN (C) 2AURELIUS (T) 4BABYLON (T) 4BATAVIA (T) 4BEDFORD (T) 10BEEKMAN (T) 10BETHEL (T) 5BLOOMING GROVE (T) 8BRIGHTON (T) 2BROOKHAVEN (T) 4BUFFALO (C) 2CANANDAIGUA (T) 2CARMEL (T) 39CHESTER (T) 10CLARKSTOWN (T) 4CLIFTON PARK (T) 4Clinton (county) 1COLLINS (T) 3Columbia (county) 2CORNING (C) 2CORTLANDT (T) 3COXSACKIE (T) 3DANNEMORA (V) 2DE WITT (T) 2DELAWARE (T) 2DICKINSON (T) 8DOVER (T) 11DRYDEN (V) 5EAST FISHKILL (T) 24FALLSBURG (T) 13FISHKILL (T) 8FORT ANN (T) 3FORT EDWARD(V) 2FRANKFORT (T) 5Genesee (county) 4GOSHEN (T) 9GREENBURGH (T) 2HADLEY (T) 2HEMPSTEAD (T) 8Herkimer (county) 1HERKIMER (V) 2HIGHLANDS (T) 5HOPEWELL (T) 2HUNTER (T) 3HUNTINGTON (T) 5HYDE PARK (T) 20IRONDEQUOIT (T) 2ISLIP (T) 3ITHACA (C) 5JAY (T) 5Jefferson (county) 4KENDALL (T) 4KENMORE (V) 2KINGSTON (C) 2KIRKLAND (T) 3LAGRANGE (T) 6LERAY (T) 3LEWISBORO (T) 15LEWISTON (V) 3LIBERTY (T) 9MALTA (T) 5MILTON (T) 15MOREAU (T) 2MORIAH (T) 2MOUNT HOPE (T) 6MOUNT PLEASANT (T) 13MURRAY (T) 5NEW PALTZ (T) 4NIAGARA FALLS (C) 2NORTH CASTLE (T) 5NORTH HEMPSTEAD (T) 8OAKFIELD (T) 3OAKFIELD (V) 2ORLEANS (T) 2OWEGO (T) 2OWEGO (V) 12OYSTER BAY (T) 10PHILIPSTOWN (T) 9PLATTSBURGH (C) 2POUGHKEEPSIE (T) 3QUEENSBURY (T) 3RAMAPO (T) 7RED HOOK (T) 11RENSSELAER (C) 2RIVERHEAD (T) 4ROCHESTER (C) 2ROCKLAND (T) 3ROME (C) 4ROTTERDAM (T) 3ROYALTON (T) 3SARATOGA SPRNGS (C) 2SAUGERTIES (T) 10SCHAGHTICOKE (T) 3SCHENECTADY (C) 2SCHODACK (T) 9Seneca (county) 1SHAWANGUNK (T) 4SKANEATELES (T) 2SMITHTOWN (T) 3SOMERS (T) 9SOUTHAMPTON (T) 2SOUTHEAST (T) 25SOUTHOLD (T) 3STILLWATER (T) 3SYRACUSE (C) 3THOMPSON (T) 19Tioga (county) 1Tompkins (county) 2TONAWANDA (C) 2TUXEDO (T) 5ULSTER (T) 16VERONA (T) 4VICTOR (T) 2VICTOR (V) 2WAPPINGER (T) 9WARWICK (T) 10WATERTOWN (T) 5WAWARSING (T) 11WAWAYANDA (T) 7WEBB (T) 5Westchester (county) 3WESTMORELAND (T) 5WILTON (T) 10WINDHAM (T) 7WOODBURY (T) 4YORKSHIRE (T) 3YOUNGSTOWN (V) 3

    Counties

    A page for each county EPA lists for three or more systems with a page of their own: the systems that serve it and how each stands on EPA's record.

    Albany County 35Allegany County 23Broome County 63Cattaraugus County 51Cayuga County 32Chautauqua County 55Chemung County 24Chenango County 29Clinton County 39Columbia County 50Cortland County 25Delaware County 34Dutchess County 152Erie County 44Essex County 33Franklin County 14Fulton County 25Genesee County 16Greene County 36Hamilton County 7Herkimer County 35Jefferson County 57Lewis County 15Livingston County 28Madison County 22Monroe County 5Montgomery County 18Nassau County 40Niagara County 21Oneida County 45Onondaga County 25Ontario County 35Orange County 138Orleans County 22Oswego County 42Otsego County 37Putnam County 101Rensselaer County 38Rockland County 19Saratoga County 74Schenectady County 11Schoharie County 16Schuyler County 11Seneca County 26St. Lawrence County 40Steuben County 56Suffolk County 26Sullivan County 69Tioga County 33Tompkins County 51Ulster County 112Warren County 24Washington County 21Wayne County 19Westchester County 92Wyoming County 23Yates County 12

    Systems with no city or county on EPA's record, A to Z (7)

    • CATTARAUGUS CWS4,999 peoplePWS ID 020000008
    • JIMMERSONTOWN WS296 peoplePWS ID 020000001
    • ONONDAGA NATION WS1,200 peoplePWS ID 020000012EPA enforcement priority
    • SAINT REGIS MOHAWK TRIBE5,500 peoplePWS ID 020000005
    • SHELTON TRAILER PARK40 peoplePWS ID 020011102
    • STEAMBURG WS288 peoplePWS ID 020000004
    • SULLIVAN HOLLOW64 peoplePWS ID 020000016Health-based violation since Oct. 23, 2023
    Water systems with a page of their own, A to Z (865)

    From EPA's Safe Drinking Water Information System (SDWIS), through EPA ECHO's drinking water system download. Health-based violations from EPA Envirofacts, downloaded Nov. 2, 2026. EPA's file dated Oct. 23, 2026. EPA: “All compliance and enforcement data displayed on ECHO are current as of the last official quarterly refresh of the source data system, SDWIS, which may lag by three to six months.” These are records of violations, not a test of your tap water today: your water system's annual Consumer Confidence Report has its test results. Names and values are shown as EPA writes them. EPA ECHO drinking water search.