TTHM (Total Trihalomethanes) violations in Alabama
65 active public water systems in Alabama had a TTHM (Total Trihalomethanes) violation in the past three years, 8 of them in the latest quarter of EPA's data. What TTHM (Total Trihalomethanes) is and why it matters.
Health effects: Long-term exposure is associated with increased bladder cancer risk. Some studies link high TTHM exposure to adverse reproductive outcomes. Bromodichloromethane is classified as a possible human carcinogen.
Systems with a TTHM (Total Trihalomethanes) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Carrolls Creek, Water Authority Northport · Tuscaloosa County |
16,248 | 2 | 0 | |
|
Holtville Water System Deatsville · Elmore County |
12,600 | 1 | 0 | |
|
Gilbertown, Utilities Board of Town of Gilbertown · Choctaw County |
8,157 | 3 | 1 | |
|
Jackson County Water Authority Scottsboro · Jackson County |
7,968 | 4 | 4 | |
|
Stevenson, Util. Board of the Town of Stevenson · Jackson County |
4,101 | 4 | 2 | |
|
Myrtlewood Water System Myrtlewood · Marengo County |
4,095 | 1 | 0 | |
|
Daviston Water System, Town of Daviston · Tallapoosa County |
825 | 3 | 1 | |
|
Glenwood Water Works Glenwood · Crenshaw County |
318 | 5 | 3 | |
|
Central Alabama Water Birmingham · Jefferson County |
653,322 | 2 | 1 | |
|
Mobile, Bd. of W&s Comm. of the City of Mobile · Mobile County |
279,000 | 2 | 0 | |
|
Tuscaloosa Water & Sewer Tuscaloosa · Tuscaloosa County |
166,524 | 2 | 0 | |
|
Dothan Utilities, City of Dothan · Houston County |
97,146 | 1 | 0 | |
|
Gadsden, the Wwsb of the City of Gadsden · Etowah County |
44,637 | 1 | 0 | |
|
Alabaster Water Department, City of Alabaster · Shelby County |
40,986 | 1 | 0 | |
|
Warrior River Water Authority Bessemer · Jefferson County |
38,700 | 3 | 1 | |
|
Dekalb-Jackson Water Supply District Jackson County |
32,421 | 1 | 0 | |
|
Albertville, Municipal UB of the City of Albertville · Marshall County |
29,367 | 1 | 0 | |
|
Prichard Water Works Board Prichard · Mobile County |
29,190 | 2 | 0 | |
|
Jasper Water Works & Sewer Board Jasper · Walker County |
28,638 | 3 | 0 | |
|
Douglas Water Authority Douglas · Marshall County |
19,179 | 1 | 0 | |
|
Curry Water Authority Jasper · Walker County |
18,060 | 2 | 0 | |
|
Sheffield Utilities, City of Sheffield Sheffield · Colbert County |
13,758 | 1 | 0 | |
|
Tuskegee, Utilities Board of the City of Tuskegee · Macon County |
12,900 | 1 | 0 | |
|
West Escambia Utilities, Inc. Atmore · Escambia County |
12,060 | 2 | 0 | |
|
Beulah Utilities District Lee County |
10,389 | 2 | 1 | |
|
Opp Utilities Board Opp · Covington County |
10,266 | 1 | 0 | |
|
Geneva, the WW & SB of the City of Geneva · Geneva County |
9,600 | 1 | 0 | |
|
Greenville Water Works Greenville · Butler County |
9,336 | 1 | 0 | |
|
Winfield Water Works & Sewer Board Winfield · Marion County |
8,631 | 1 | 0 | |
|
Bayou la Batre, the UB of the City of Bayou La Batre · Mobile County |
8,100 | 2 | 0 | |
|
Tallassee Water Works Tallassee · Elmore County |
7,512 | 1 | 0 | |
|
Lanett Water Works Lanett · Chambers County |
7,152 | 1 | 0 | |
|
Triana Water Works Triana · Madison County |
7,038 | 2 | 1 | |
|
Jacksons Gap Water Authority Jacksons Gap · Tallapoosa County |
7,008 | 1 | 0 | |
|
Wilcox County Water and Sewer District Camden · Wilcox County |
6,144 | 2 | 0 | |
|
Millbrook Utilities Millbrook · Elmore County |
5,451 | 2 | 1 | |
|
Eclectic, Water Works & Sewer Board Eclectic · Elmore County |
5,094 | 1 | 0 | |
|
Evergreen Water Works Evergreen · Conecuh County |
4,950 | 1 | 0 | |
|
Chisholm Heights, Water & F P Authority Florence · Lauderdale County |
4,881 | 5 | 1 | |
|
Butler Water System Butler · Choctaw County |
4,590 | 1 | 0 | |
|
Moundville, City of Moundville · Hale County |
4,404 | 1 | 0 | |
|
Dadeville Water and Gas Board Dadeville · Tallapoosa County |
4,101 | 1 | 0 | |
|
Dora Utilities Dora · Walker County |
4,083 | 1 | 0 | |
|
Marion County Public Water Authority Guin · Marion County |
3,660 | 1 | 0 | |
|
North Choctaw Water & Sewer Authority Lisman · Choctaw County |
3,450 | 6 | 0 | |
|
Uriah Water System Uriah · Monroe County |
3,420 | 3 | 0 | |
|
Georgiana, the Ww&sb of the City of Georgiana · Butler County |
2,889 | 2 | 0 | |
|
Hayneville, Town of Hayneville · Lowndes County |
2,868 | 3 | 0 | |
|
Clay County Water Authority Lineville · Clay County |
2,751 | 1 | 0 | |
|
Remlap Pine Mtn Water Authority Remlap · Blount County |
2,616 | 2 | 1 |
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 Alabama 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.