TTHM (Total Trihalomethanes) violations in Virginia
116 active public water systems in Virginia had a TTHM (Total Trihalomethanes) violation in the past three years, 17 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 |
|---|---|---|---|---|
|
Woodhaven Nursing Home Bedford County |
75 | 3 | 0 | |
|
Riverbend Subdivision Pulaski County |
72 | 2 | 1 | |
|
Big Rock Trailer Park Floyd County |
60 | 3 | 0 | |
|
Fairfield Mobile Home Park Henry County |
60 | 2 | 0 | |
|
Harris Trailer Court Henry County |
55 | 2 | 0 | |
|
Sesmau Jerdone Island Louisa County |
50 | 5 | 0 | |
|
Lurich Road Giles County |
48 | 2 | 0 | |
|
Powell Mountain Giles County |
48 | 2 | 0 | |
|
Clifton Presby. Church Preschool Fairfax County |
45 | 3 | 0 | |
|
Glendale Subdivision Culpeper County |
42 | 2 | 0 | |
|
Twin Oaks Mobile Home Park Henry County |
42 | 2 | 0 | |
|
Milford Haven Coast Guard Sta Mathews County |
36 | 1 | 0 | |
|
Lee Dale Shores Northumberland County |
34 | 4 | 0 | |
|
Dulaney Trailer Park Pulaski County |
31 | 5 | 0 | |
|
Fluvanna County Zion Crossroads Fluvanna County |
25 | 4 | 1 | |
|
Hanover Community Center Hanover County |
25 | 2 | 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 Virginia 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.