STATE / TERRITORY LEDGER
New York drinking water system records
EPA compliance fields for active community water systems reporting at least 2,500 people served.
Systems380active CWS · pop. 2,500+
Population served17,531,394reported total; may overlap
Current violation flag13.9%53 systems
Serious-violator flag1.1%4 systems
01 / LARGEST SYSTEMS
Community water systems in New York
Population served is a system-reported service figure. It is not a count of unique state residents.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| New York City SystemNY7003493 | 8,271,000 | Surface water | Current health-based flag |
| Suffolk County Water AuthorityNY5110526 | 1,100,000 | Ground water | No current violation flagged |
| McwaNY2701047 | 525,262 | Surface water | Current health-based flag |
| OcwaNY3304336 | 350,000 | Surface water | No current violation flagged |
| Ecwa DirectNY1400443 | 313,380 | Surface water | No current violation flagged |
| Buffalo Water AuthorityNY1400422 | 276,000 | Surface water | No current violation flagged |
| Veolia Water New YorkNY4303673 | 270,000 | Surface water | No current violation flagged |
| Liberty Utilities New York - LynbrookNY2902835 | 220,000 | Ground water | No current violation flagged |
| Yonkers CityNY5903465 | 211,569 | Surface water purchased | No current violation flagged |
| Rochester CityNY2704518 | 210,000 | Surface water | Current health-based flag |
| Syracuse CityNY3304334 | 192,000 | Surface water | Current serious-violator flag |
| Veolia Water New York, Inc. Rd-1NY5903444 | 146,732 | Surface water purchased | No current violation flagged |
| Liberty Utilities New York - MerrickNY2902840 | 135,000 | Ground water | No current violation flagged |
| Mvwa - Mohawk Valley Water AuthorityNY3202411 | 126,250 | Surface water | No current violation flagged |
| Wa Of Western NassauNY2902830 | 120,000 | Ground water | No current violation flagged |
| Town Of Hempstead Water DepartmentNY2900000 | 110,000 | Ground water | No current violation flagged |
| Albany CityNY0100189 | 98,000 | Surface water | No current violation flagged |
| Ecwa AmherstNY1400399 | 92,697 | Surface water purchased | No current violation flagged |
| Greenburgh Consolidated Wd #1NY5903429 | 86,624 | Surface water purchased | No current violation flagged |
| Latham Water DistrictNY0100198 | 85,590 | Surface water | No current violation flagged |
| South Huntington Water DistrictNY5103263 | 81,760 | Ground water | No current violation flagged |
| Mount Vernon Water DepartmentNY5903441 | 73,893 | Surface water purchased | No current violation flagged |
| Tonawanda, Town Water Dept.NY1404556 | 72,571 | Surface water | No current violation flagged |
| Schenectady City Water WorksNY4600070 | 61,821 | Ground water | No current violation flagged |
| Westchester Joint Water WorksNY5903435 | 59,629 | Surface water | Current health-based flag |
| White Plains CityNY5903464 | 59,559 | Surface water purchased | No current violation flagged |
| Jericho WdNY2902831 | 58,000 | Ground water | No current violation flagged |
| Veolia Water New York, Inc. Rd-2NY5903456 | 57,301 | Surface water purchased | No current violation flagged |
| Hempstead (V)NY2902827 | 56,000 | Ground water | No current violation flagged |
| Elmira Water BoardNY0701008 | 54,000 | Surface water | No current violation flagged |
| Kiryas JoelNY3503627 | 51,623 | Ground water | No current violation flagged |
| Troy City PWSNY4100050 | 51,401 | Surface water | No current violation flagged |
| Niagara Falls Water BoardNY3100568 | 50,193 | Surface water | No current violation flagged |
| Hicksville WdNY2902829 | 48,000 | Ground water | No current violation flagged |
| Binghamton, City OfNY0301651 | 47,600 | Surface water | No current violation flagged |
| Jamestown BpuNY0600366 | 46,712 | Ground water | No current violation flagged |
| Endicott Municipal Water WorksNY0301665 | 45,000 | Ground water | No current violation flagged |
| Freeport (V)NY2902823 | 45,000 | Ground water | No current violation flagged |
| South Farmingdale WdNY2902854 | 44,700 | Ground water | No current violation flagged |
| Manhasset Lakeville WdNY2902836 | 43,000 | Ground water | No current violation flagged |
| Massapequa WdNY2902837 | 43,000 | Ground water | No current violation flagged |
| Poughkeepsie Townwide WdNY1302812 | 43,000 | Surface water purchased | No current violation flagged |
| Greenlawn Water DistrictNY5103271 | 42,000 | Ground water | Current serious-violator flag |
| Yorktown Consold. Water Dist.#1NY5903469 | 36,000 | Surface water purchased | No current violation flagged |
| Clifton Park Water AuthorityNY4500175 | 35,000 | Surface water purchased | Current monitoring/reporting flag |
| Long Beach CityNY2902834 | 35,000 | Ground water | No current violation flagged |
| Riverhead Water DistrictNY5103705 | 35,000 | Ground water | No current violation flagged |
| Dix Hills Water DistrictNY5103276 | 34,522 | Ground water | No current violation flagged |
| Fort DrumNY2212214 | 34,000 | Surface water purchased | No current violation flagged |
| Plainview WdNY2902845 | 34,000 | Ground water | No current violation flagged |
| Port Washington WdNY2912267 | 34,000 | Ground water | No current violation flagged |
| Bethpage WdNY2902817 | 33,000 | Ground water | No current violation flagged |
| West Hempstead WdNY2902857 | 32,031 | Ground water | No current violation flagged |
| Rome CityNY3202405 | 31,795 | Surface water | No current violation flagged |
| Cornell UniversityNY5417686 | 31,581 | Surface water | No current violation flagged |
| North Tonawanda CityNY3100572 | 31,568 | Surface water | No current violation flagged |
| Wa Of Great Neck NorthNY2902841 | 31,400 | Ground water | No current violation flagged |
| Bethlehem Wd No 1NY0100191 | 31,000 | Surface water | No current violation flagged |
| Poughkeepsie CityNY1330291 | 30,639 | Surface water purchased | No current violation flagged |
| Guilderland Town WdNY0100205 | 30,000 | Surface water | No current violation flagged |
| Middletown CityNY3503534 | 30,000 | Surface water | No current violation flagged |
| Ossining Water DepartmentNY5903451 | 30,000 | Surface water | No current violation flagged |
| Ithaca CityNY5404416 | 29,457 | Surface water | No current violation flagged |
| Oswego CityNY3704361 | 29,400 | Surface water | No current violation flagged |
| Ecwa LancasterNY1400421 | 29,018 | Surface water purchased | No current violation flagged |
| Newburgh CityNY3503549 | 29,000 | Surface water | No current violation flagged |
| Cortlandt Consolidated WdNY5903423 | 28,369 | Surface water purchased | No current violation flagged |
| Glen Cove CityNY2902826 | 28,000 | Ground water | No current violation flagged |
| Rotterdam Wd #5NY4600069 | 28,000 | Ground water | No current violation flagged |
| Watertown CityNY2202346 | 27,861 | Surface water | No current violation flagged |
| AuburnNY0501710 | 27,179 | Surface water | No current violation flagged |
| Saratoga Springs CityNY4500168 | 26,525 | Surface water | No current violation flagged |
| Brockport VillageNY2701039 | 25,918 | Surface water purchased | Current monitoring/reporting flag |
| New Windsor Consolidated WdNY3503580 | 25,667 | Surface water purchased | No current violation flagged |
| Rockville Centre (V)NY2902848 | 24,700 | Ground water | No current violation flagged |
| Ecwa Orchard ParkNY1421762 | 24,582 | Surface water purchased | No current violation flagged |
| Peekskill CityNY5903452 | 24,272 | Surface water | No current violation flagged |
| Palmyra-Macedon-Walworth CsaNY5801257 | 24,267 | Surface water purchased | No current violation flagged |
| Plattsburgh CityNY0900217 | 24,173 | Surface water | No current violation flagged |
| Kingston (City) Water DistrictNY5503374 | 24,000 | Surface water | No current violation flagged |
| Ecwa West SenecaNY1404543 | 23,557 | Surface water purchased | No current violation flagged |
| Garden City (V)NY2902824 | 23,272 | Ground water | No current violation flagged |
| Niskayuna Consolidated Wd #11NY4600073 | 22,287 | Ground water | No current violation flagged |
| Newburgh Consolidated WdNY3503578 | 22,282 | Surface water | Other current violation flag |
| Vestal Consolidated W.D. #1NY0301674 | 22,200 | Ground water | No current violation flagged |
| Scarsdale Water DepartmentNY5903457 | 21,649 | Surface water purchased | No current violation flagged |
| Queensbury Water DistrictNY5600114 | 21,200 | Surface water | Other current violation flag |
| Lockport City WtpNY3100564 | 21,165 | Surface water | No current violation flagged |
| Lockport Town WdsNY3100563 | 21,105 | Surface water purchased | No current violation flagged |
| Amsterdam (C)NY2800136 | 20,700 | Surface water | No current violation flagged |
| Mineola (V)NY2902839 | 20,600 | Ground water | No current violation flagged |
| Westbury WdNY2902856 | 20,500 | Ground water | No current violation flagged |
| Cortland (C)NY1101754 | 20,095 | Ground water | No current violation flagged |
| Franklin Square WdNY2902822 | 20,000 | Ground water | No current violation flagged |
| Smithtown Water DistrictNY5105656 | 19,635 | Ground water purchased | No current violation flagged |
| Grand Island Town Water Dept.NY1400451 | 19,500 | Surface water | No current violation flagged |
| Wallkill Consolidated WdNY3503584 | 18,450 | Groundwater under influence of surface water | No current violation flagged |
| Cohoes CityNY0100192 | 18,447 | Surface water | No current violation flagged |
| Wheatfield WdNY3100585 | 18,117 | Surface water purchased | No current violation flagged |
| Garden City Park WdNY2902825 | 18,000 | Ground water | No current violation flagged |
Showing the 100 largest systems by reported population served.
02 / CITY REPORTS
Browse cities
North Hempstead (T)8 systemsOyster Bay (T)8 systemsHempstead (T)6 systemsHuntington (T)5 systemsIthaca (C)5 systemsMount Pleasant (T)4 systemsBatavia (T)3 systemsHighlands (T)3 systemsSmithtown (T)3 systemsAlfred (V)2 systemsAmherst (T)2 systemsAngola (V)2 systemsBabylon (T)2 systemsBethel (T)2 systemsBrookhaven (T)2 systemsBuffalo (C)2 systemsCanandaigua (T)2 systemsClarkstown (T)2 systemsCortlandt (T)2 systemsDe Witt (T)2 systemsFishkill (T)2 systemsGreenburgh (T)2 systemsIrondequoit (T)2 systemsIslip (T)2 systemsKendall (T)2 systemsKenmore (V)2 systemsKirkland (T)2 systemsLeray (T)2 systemsLewiston (V)2 systemsNiagara Falls (C)2 systemsOwego (V)2 systemsRensselaer (C)2 systemsRiverhead (T)2 systemsRochester (C)2 systemsRome (C)2 systemsRoyalton (T)2 systemsSaratoga Sprngs (C)2 systemsSaugerties (T)2 systemsSchenectady (C)2 systemsSkaneateles (T)2 systemsSomers (T)2 systemsSouthampton (T)2 systemsSyracuse (C)2 systemsTonawanda (C)2 systemsVictor (T)2 systemsWoodbury (T)2 systemsAlabama (T)1 systemsAlbany (C)1 systemsAmsterdam (C)1 systemsArdsley (V)1 systemsAuburn (C)1 systemsBallston (T)1 systemsBatavia (C)1 systemsBeacon (C)1 systemsBergen (T)1 systemsBergen (V)1 systemsBethany (T)1 systemsBethlehem (T)1 systemsBinghamton (C)1 systemsBrighton (T)1 systemsBrockport (V)1 systemsBronxville (V)1 systemsByron (T)1 systemsCanandaigua (C)1 systemsCheektowaga (T)1 systemsChili (T)1 systemsChurchville (V)1 systemsClarence (T)1 systemsClarkson (T)1 systemsClay (T)1 systemsClifton Park (T)1 systemsCohoes (C)1 systemsColonie (T)1 systemsConcord (T)1 systemsCorfu (V)1 systemsCorning (C)1 systemsCortland (C)1 systemsDarien (T)1 systemsDeerfield (T)1 systemsDepew (V)1 systemsDobbs Ferry (V)1 systemsDunkirk (C)1 systemsEast Hampton (T)1 systemsEast Rochester (X)1 systemsEastchester (T)1 systemsElma (T)1 systemsElmira (C)1 systemsElmira (T)1 systemsElmira Heights (V)1 systemsEndicott (V)1 systemsEvans (T)1 systemsFairport (V)1 systemsFarmington (T)1 systemsFreeport (V)1 systemsFulton (C)1 systemsGarden City (V)1 systemsGates (T)1 systemsGeneva (C)1 systemsGlen Cove (C)1 systemsGlens Falls (C)1 systems
03 / COUNTY REPORTS
Browse counties
Nassau35 systemsWestchester30 systemsOrange26 systemsErie20 systemsNiagara16 systemsSaratoga14 systemsDutchess12 systemsSuffolk12 systemsAlbany11 systemsUlster10 systemsChautauqua9 systemsLivingston9 systemsOntario9 systemsBroome8 systemsOneida8 systemsOnondaga8 systemsWayne8 systemsOrleans7 systemsClinton6 systemsRensselaer6 systemsSt. Lawrence6 systemsTompkins6 systemsHerkimer5 systemsJefferson5 systemsSchenectady5 systemsSullivan5 systemsWashington5 systemsEssex4 systemsMadison4 systemsMonroe4 systemsOswego4 systemsRockland4 systemsSteuben4 systemsTioga4 systemsWarren4 systemsWyoming4 systemsAllegany3 systemsCattaraugus3 systemsChemung3 systemsCortland3 systemsDelaware3 systemsFranklin3 systemsGenesee3 systemsCayuga2 systemsColumbia2 systemsFulton2 systemsGreene2 systemsMontgomery2 systemsPutnam2 systemsSeneca2 systemsYates2 systemsBronx1 systemsKings1 systemsNew York1 systemsOtsego1 systemsQueens1 systemsRichmond1 systems