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
Town of Mathiston
Webster County
1,090 1 0
North Lee W/a-Auburn System #1
Lee County
1,088 3 0
MT Comfort W/a
Calhoun County
1,085 1 0
Town of Potts Camp
Marshall County
1,085 1 0
Town of Pittsboro
Calhoun County
1,077 2 1
Hatten Water Assn
Jones County
1,075 1 0
Town of Liberty
Amite County
1,069 1 0
Copiah County Industrial Park
Copiah County
1,062 4 1
Matthews Moss Water Assn
Jones County
1,051 1 0
Black Jack Water Assn #1
Oktibbeha County
1,024 1 0
MT Comfort W/a-Mt Moriah
Calhoun County
1,011 1 0
MT Olive Water Association
Hinds County
1,003 1 0
Mary Springs Water Association
Amite County
995 1 0
Pan Handle Water Association
Choctaw County
990 1 0
Town of Shuqualak
Noxubee County
989 1 0
Town of Dekalb
Kemper County
985 4 0
Town of Tremont
Itawamba County
985 3 0
Lakewood Environmental
Harrison County
982 3 0
Pope-Courtland Water Assn
Panola County
977 1 0
Buffalo Water Association
Wilkinson County
972 3 0
Tallahala W/a-Ted Clear
Jasper County
969 1 0
Town of Jonestown
Coahoma County
968 2 1
Town of Gloster
Amite County
960 1 0
Town of Crawford
Lowndes County
942 3 1
Town of Duck Hill
Montgomery County
924 4 0
Town of Richton
Perry County
920 1 0
Harmony W/a #7-N Enterprise
Clarke County
919 2 0
Centerville Community W/a
Holmes County
918 2 0
Town of Enterprise
Clarke County
916 1 0
Rock Hill Water Association
Oktibbeha County
915 3 0
Thomastown Water Association
Leake County
908 1 0
S MS Public Water Auth-McLaurin
Forrest County
905 1 0
Star Water Company
Rankin County
904 1 0
Entergy Operations, INC
Claiborne County
900 4 0
So. Sunflower W/a-Inverness
Sunflower County
898 1 0
Morris Water Association
Smith County
887 1 0
South Winona Water Association
Montgomery County
874 1 0
Kwp Utility Company LLC
Tunica County
869 6 0
Alpine Water Association
Union County
866 1 0
Town of Friars Point
Coahoma County
858 5 1
Raytheon Company
Scott County
850 1 0
Humphreys CO W/a #6-Gooden Lak
Humphreys County
847 1 0
Harmony Water Association #2
Clarke County
840 2 0
Country Haven Mobile Home Park
DeSoto County
829 2 1
Sixtown Water Association
Franklin County
828 1 0
Siloam W/a #3-Beasley Well
Clay County
810 4 1
Town of Braxton
Simpson County
800 1 0
Town of Crenshaw
Panola County
800 6 1
Double Springs Water Assn
Oktibbeha County
797 1 0
Looxahoma Water Association
Tate County
792 8 1
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.