TTHM (Total Trihalomethanes) violations in Vermont
65 active public water systems in Vermont had a TTHM (Total Trihalomethanes) violation in the past three years, 9 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 |
|---|---|---|---|---|
|
Alburgh Fire District 1 Alburgh · Grand Isle County |
87 | 2 | 0 | |
|
Sterling Ridge Water Warren · Washington County |
66 | 2 | 0 | |
|
West Wind Water System Charlotte · Chittenden County |
64 | 2 | 0 | |
|
Eastfield Condominium Assn INC Fairfax · Franklin County |
63 | 2 | 0 | |
|
Kids of the Kingdom on the Hill Saint Johnsbury · Caledonia County |
55 | 2 | 0 | |
|
Castleton Meadows Castleton · Rutland County |
50 | 2 | 1 | |
|
Sheffield Fire District 1 Sheffield · Caledonia County |
50 | 7 | 1 | |
|
Timberline Condominium Association Warren · Washington County |
50 | 3 | 1 | |
|
Wheeler Brook Housing Development Warren · Washington County |
47 | 3 | 0 | |
|
Pine Ridge Water System Charlotte · Chittenden County |
46 | 5 | 0 | |
|
Mountain Side Condominium Londonderry · Windham County |
45 | 5 | 1 | |
|
Mount Ascutney MHP Windsor · Windsor County |
42 | 3 | 1 | |
|
Jericho Heights Water Coop Jericho · Chittenden County |
40 | 4 | 1 | |
|
Parsons Hill Partnership Castleton · Rutland County |
32 | 2 | 0 | |
|
Rutland Town Fire District 11 Rutland Town · Rutland County |
29 | 3 | 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 Vermont 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.