TTHM (Total Trihalomethanes) violations in New York
217 active public water systems in New York had a TTHM (Total Trihalomethanes) violation in the past three years, 1 of them in the latest quarter of EPA's data. What TTHM (Total Trihalomethanes) is and why it matters.
Systems with a TTHM (Total Trihalomethanes) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mountain View Estates Jewett (t) · Greene County |
108 | 4 | 2 | |
|
Twin Ells Mobile Home Park Beekmantown (t) · Clinton County |
108 | 1 | 0 | |
|
Cahoon Farms Processing Plant Huron (t) · Wayne County |
100 | 3 | 0 | |
|
Forever Wild Water Co-Kitzbuhl Jay (t) · Essex County |
100 | 3 | 1 | |
|
Frankfort Wd# 20 Frankfort (t) · Herkimer County |
100 | 1 | 0 | |
|
Garfield Village Mobile Home Park Busti (t) · Chautauqua County |
100 | 6 | 1 | |
|
Spring Creek Apartments Pleasant Valley (t) · Dutchess County |
100 | 2 | 1 | |
|
Busti Mobile Home Park Busti (t) · Chautauqua County |
97 | 2 | 0 | |
|
Lawtons Water CO North Collins (t) · Erie County |
95 | 2 | 0 | |
|
Saranac WD Saranac (t) · Clinton County |
90 | 2 | 1 | |
|
Valley View Mobile Home Park Springwater (t) · Livingston County |
90 | 2 | 0 | |
|
Woodland Country Apartments Marbletown (t) · Ulster County |
85 | 1 | 0 | |
|
Pattersonville Mobile Home #1 Florida (t) · Montgomery County |
81 | 7 | 1 | |
|
Hillview Terrace MHP Danby (t) · Tompkins County |
80 | 2 | 1 | |
|
Shady Lane Park, Inc. Mohawk (t) · Montgomery County |
80 | 4 | 1 | |
|
Cameron Valley Estates Cameron (t) · Steuben County |
78 | 3 | 1 | |
|
Delphi Falls Park Pompey (t) · Onondaga County |
78 | 3 | 0 | |
|
Leatherstocking Community German Flatts (t) · Herkimer County |
77 | 5 | 0 | |
|
Gallis Hill Mhp/black Bear Hollow Hurley (t) · Ulster County |
76 | 2 | 1 | |
|
Wellman Road MHP Busti (t) · Chautauqua County |
75 | 5 | 0 | |
|
Van Hornesville Water District Stark (t) · Herkimer County |
72 | 5 | 1 | |
|
Cold Brook Trailer Park Scott (t) · Cortland County |
70 | 3 | 1 | |
|
Montgomery Town Hall Montgomery (t) · Orange County |
70 | 3 | 0 | |
|
Pine Hollow Estates Saugerties (t) · Ulster County |
68 | 3 | 0 | |
|
Streamside Estates Rochester (t) · Ulster County |
67 | 2 | 1 | |
|
Morning Star Village Lisbon (t) · St. Lawrence County |
65 | 2 | 0 | |
|
Parker Manor Trailer Park Scott (t) · Cortland County |
64 | 3 | 0 | |
|
Cove View Apartments Rhinebeck (t) · Dutchess County |
60 | 2 | 1 | |
|
Harford Water District #1 Harford (t) · Cortland County |
55 | 1 | 0 | |
|
Creekside Homes Almond (t) · Allegany County |
54 | 3 | 2 | |
|
Palatine Manor Germantown (t) · Columbia County |
54 | 3 | 0 | |
|
Estate Townhouses Schroeppel (t) · Oswego County |
50 | 3 | 0 | |
|
Glen Water District 1 Glen (t) · Montgomery County |
50 | 3 | 0 | |
|
Hollywood Hills Condo Webb (t) · Herkimer County |
50 | 4 | 2 | |
|
Hornby Water District Corning (t) · Steuben County |
50 | 1 | 0 | |
|
Mirror Lake Trailer Park Esopus (t) · Ulster County |
50 | 7 | 2 | |
|
Wellsville Mobile Home Community Wellsville (t) · Allegany County |
45 | 4 | 0 | |
|
Preserve at Gore Mountain Johnsburg (t) · Warren County |
45 | 2 | 0 | |
|
Tri-Town Kids Brasher (t) · St. Lawrence County |
45 | 4 | 0 | |
|
Bedford Golf and Tennis Club Bedford (t) · Westchester County |
44 | 6 | 0 | |
|
Pine Tree Mobile Home Park Livingston (t) · Columbia County |
44 | 1 | 0 | |
|
Vista Village MHP Schuyler Falls (t) · Clinton County |
43 | 2 | 0 | |
|
Hillside Mobile Home Park Rochester (t) · Ulster County |
42 | 1 | 0 | |
|
Lakeside Estates Northampton (t) · Fulton County |
41 | 6 | 0 | |
|
Cortlandt Des Cortlandt (t) · Westchester County |
40 | 1 | 0 | |
|
Godfreys Pond Stafford (t) · Genesee County |
40 | 2 | 0 | |
|
Magic Pines MHP Lewis (t) · Essex County |
40 | 2 | 0 | |
|
Willow Brook MHP Stockton (t) · Chautauqua County |
40 | 5 | 1 | |
|
Woodcrest Apartments Plattekill (t) · Ulster County |
40 | 2 | 0 | |
|
Pleasant Valley Mobile Home PK Lindley (t) · Steuben County |
39 | 4 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved TTHM (Total Trihalomethanes), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not TTHM (Total Trihalomethanes) alone.
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.