New York Drinking Water Compliance Records
2,250 water systems serving 18,342,635 people. 3,168 historical EPA violation records in the Q2 2026 snapshot.
TapScore Compliance-History Grades
A
2,206
98%
B
22
1%
C
20
1%
D
2
0%
F
0
0%
2,250
Water Systems
18,342,635
Population Served
3,168
Historical Records
74
Health-Based (All Years)
Systems With the Most Recent EPA Records
HUNTERS CREEK MOBILE HOME PARK
150 served223 historical records100 recent
C
TOP OF THE WORLD
132 served51 historical records29 recent
C
PATTERSONVILLE MOBILE HOME #2
50 served34 historical records29 recent
C
BROOKWOOD MOBILE HOME PARK
58 served48 historical records25 recent
D
PATTERSONVILLE MOBILE HOME #1
81 served26 historical records20 recent
C
WHISPERING PINES II
19 served16 historical records15 recent
C
PINE GROVE MOBILE HOME PARK
340 served21 historical records14 recent
C
UNADILLA VILLAGE
1,128 served30 historical records10 recent
D
1610 LLC (WILLOW MANOR APTS)
35 served10 historical records8 recent
C
ORANGE COUNTY ESTATES, INC
25 served16 historical records8 recent
C
Large Systems With No Recent Records
NEW YORK CITY SYSTEM
8,271,000 served3 historical records
A
SUFFOLK COUNTY WATER AUTHORITY
1,100,000 served1 historical record
A
MCWA
525,262 served1 historical record
A
OCWA
350,000 served1 historical record
A
ECWA DIRECT
313,380 served1 historical record
A
BUFFALO WATER AUTHORITY
276,000 served1 historical record
A
VEOLIA WATER NEW YORK
270,000 served1 historical record
A
LIBERTY UTILITIES NEW YORK - LYNBROOK
220,000 served1 historical record
A
YONKERS CITY
211,569 served1 historical record
A
ROCHESTER CITY
210,000 served1 historical record
A
Largest Water Systems in New York
| Water System | Grade | Population | Historical Records |
|---|---|---|---|
| NEW YORK CITY SYSTEM | A | 8,271,000 | 3 |
| SUFFOLK COUNTY WATER AUTHORITY | A | 1,100,000 | 1 |
| MCWA | A | 525,262 | 1 |
| OCWA | A | 350,000 | 1 |
| ECWA DIRECT | A | 313,380 | 1 |
| BUFFALO WATER AUTHORITY | A | 276,000 | 1 |
| VEOLIA WATER NEW YORK | A | 270,000 | 1 |
| LIBERTY UTILITIES NEW YORK - LYNBROOK | A | 220,000 | 1 |
| YONKERS CITY | A | 211,569 | 1 |
| ROCHESTER CITY | A | 210,000 | 1 |
| SYRACUSE CITY | A | 192,000 | 1 |
| VEOLIA WATER NEW YORK, INC. RD-1 | A | 146,732 | 1 |
| LIBERTY UTILITIES NEW YORK - MERRICK | A | 135,000 | 0 |
| MVWA - MOHAWK VALLEY WATER AUTHORITY | A | 126,250 | 4 |
| WA OF WESTERN NASSAU | A | 120,000 | 0 |
| TOWN OF HEMPSTEAD WATER DEPARTMENT | A | 110,000 | 1 |
| ALBANY CITY | A | 98,000 | 0 |
| ECWA AMHERST | A | 92,697 | 0 |
| GREENBURGH CONSOLIDATED WD #1 | A | 86,624 | 1 |
| LATHAM WATER DISTRICT | A | 85,590 | 1 |
Contaminants in New York
Lead in New YorkArsenic in New YorkNitrate in New YorkFluoride in New YorkPFOS in New YorkPFOA in New YorkTHMs in New YorkHAA5 in New York
Cities in New York
VALHALLA(12)NEW YORK (C)(2)HUNTINGTON (T)(5)RIVERHEAD (T)(4)SMITHTOWN (T)(3)SOUTHAMPTON (T)(2)BABYLON (T)(4)ISLIP (T)(3)BROOKHAVEN (T)(4)SOUTHOLD (T)(3)HAUPPAUGE(2)EAST HAMPTON (T)(1)BUFFALO(13)ROCHESTER(32)ROCHESTER (C)(2)HEMPSTEAD (T)(8)BUFFALO (C)(2)BATAVIA (T)(4)SYRACUSE(6)SYRACUSE (C)(3)VICTOR (T)(2)IRONDEQUOIT (T)(2)KENDALL (T)(4)OAKFIELD (T)(3)VICTOR (V)(2)OAKFIELD (V)(2)RUSH (T)(2)FAIRPORT (V)(1)PITTSFORD (V)(1)SPENCERPORT (V)(1)HAMLIN (T)(1)HENRIETTA (T)(1)SCOTTSVILLE (V)(1)HONEOYE FALLS (V)(1)WHEATLAND (T)(1)CLARKSON (T)(1)CHURCHVILLE (V)(1)WEBSTER (T)(1)SWEDEN (T)(1)RIGA (T)(1)PITTSFORD (T)(1)PERINTON (T)(1)PENFIELD (T)(1)PARMA (T)(1)OGDEN (T)(1)MENDON (T)(1)GREECE (T)(1)GATES (T)(1)BRIGHTON (T)(1)CHILI (T)(1)EAST ROCHESTER (X)(1)WEST NYACK(24)AMHERST (T)(2)TONAWANDA (C)(2)MERRICK(12)CONCORD (T)(3)EVANS (T)(1)DEPEW (V)(1)CHEEKTOWAGA (T)(1)LANCASTER (V)(1)CLARENCE (T)(1)SLOAN (V)(1)LACKAWANNA (C)(1)CLARKSTOWN (T)(4)OYSTER BAY (T)(10)NORTH HEMPSTEAD (T)(8)LYNBROOK (V)(1)YONKERS(1)YONKERS (C)(1)TUCKAHOE (V)(1)HASTINGS-ON-HUDSON (V)(1)ARDSLEY (V)(1)DOBBS FERRY (V)(1)PELHAM (V)(1)PELHAM MANOR (V)(1)BRONXVILLE (V)(1)EASTCHESTER (T)(1)NEW ROCHELLE (C)(1)WESTMORELAND (T)(5)UTICA(2)DEERFIELD (T)(2)YORKVILLE (V)(1)WHITESTOWN (T)(1)ORISKANY (V)(1)NEW YORK MILLS (V)(1)NEW HARTFORD (V)(1)MARCY (T)(1)UTICA (C)(1)WHITESBORO (V)(1)NEW HARTFORD (T)(1)NEW HYDE PARK(1)EAST MEADOW(2)ALBANY(8)POUGHKEEPSIE(35)ALBANY (C)(1)GREENBURGH (T)(2)KENMORE (V)(2)GREENBURGH(1)LATHAM(2)COLONIE (T)(1)