Tapcensus

Total Haloacetic Acids (HAA5) violations in Mississippi

490 active public water systems in Mississippi had a Total Haloacetic Acids (HAA5) violation in the past three years, 10 of them in the latest quarter of EPA's data. What Total Haloacetic Acids (HAA5) is and why it matters.

Health effects: Dichloroacetic acid is a probable human carcinogen (Group B2). Long-term exposure to trichloroacetic acid may also increase cancer risk. Animal studies show liver, kidney, and reproductive effects at high doses.

Systems with a Total Haloacetic Acids (HAA5) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Algoma Water Association
Pontotoc County
6,879 3 0
City of Hernando-Jaybird
DeSoto County
6,750 4 0
Southwest Jones W/a-North
Jones County
6,690 1 0
Combined Utilities
George County
6,658 1 0
Arnold Line Water Association
Lamar County
6,600 1 0
Town of Caledonia
Lowndes County
6,589 1 0
Central W/a-East Side
Neshoba County
6,442 1 0
City of Waveland
Waveland · Hancock County
6,400 2 0
Sebastopol Water Association
Scott County
6,207 1 0
Greenfield Water Association
Rankin County
6,088 4 0
Sunrise Utility Assn INC
Forrest County
6,067 1 0
Nesbit Water Association
DeSoto County
5,988 1 0
Crystal Springs Water Service
Copiah County
5,961 2 0
City of Columbia
Columbia · Marion County
5,900 4 0
Kossuth W/a #3-Pine Mountain
Alcorn County
5,830 3 0
Pleasant Ridge W/a
Jones County
5,808 1 0
East Lowndes #4-Herman-Vaughn
Lowndes County
5,678 1 0
Marshall CO Water Assn
Marshall County
5,599 1 0
North Pike Water Association
Pike County
5,359 1 0
Topisaw Creek
Lincoln County
5,349 1 0
Central W/a-Southwest
Neshoba County
5,312 1 0
East Leflore Water & Sewer Dst
Leflore County
5,206 1 0
East Pontotoc Water Assn
Pontotoc County
5,170 2 0
City of Winona
Winona · Montgomery County
5,071 2 0
Clayton Village W/a #1-East
Oktibbeha County
4,984 1 0
City of Carthage
Carthage · Leake County
4,901 1 0
Riverbend Utilities INC
Harrison County
4,834 2 0
East Lowndes W/a a East-Old Yorkville
Lowndes County
4,778 1 0
City of Belzoni
Belzoni · Humphreys County
4,768 9 2
City of Leland
Leland · Washington County
4,591 4 0
City of Waynesboro
Waynesboro · Wayne County
4,570 5 0
Clarkdale Water Assn # 1
Lauderdale County
4,500 1 0
Town of Byhalia
Marshall County
4,446 3 0
Pearl River Central W/a-Henley Field
Pearl River County
4,438 1 0
Pearl River Central W/a-Bi CO
Pearl River County
4,406 1 0
City of Wiggins
Wiggins · Stone County
4,300 3 0
Hamilton Water District
Monroe County
4,029 1 0
Okatoma Water Association #1
Simpson County
3,981 1 0
Long Creek Water Assn #2
Lauderdale County
3,977 1 0
MS State Hospital-Whitfield
Rankin County
3,950 1 0
Beat III W/a #1-Sand Hill
Greene County
3,881 1 0
Big V Water Association
Prentiss County
3,878 2 0
J P Utility District
Jones County
3,839 1 0
Leesburg Water Association
Rankin County
3,836 1 0
Sunnyhill Water Association
Pike County
3,833 4 1
Toomsuba Water Association
Lauderdale County
3,828 1 0
City of Houston
Houston · Chickasaw County
3,772 2 0
Old Union Water System
Lee County
3,749 5 0
Calhoun Water Association
Jones County
3,730 1 0
Southwest Covington W/a
Covington County
3,601 1 0
About this data

A system is counted once if any of its violations in the past three years involved Total Haloacetic Acids (HAA5), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Total Haloacetic Acids (HAA5) 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 Mississippi 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.