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
Duffee Water Association
Newton County
1,716 1 0
Hwy 30 West Water Association
Union County
1,716 1 0
Pope-Courtland W/a-North
Panola County
1,713 3 0
City of Mound Bayou
Mound Bayou · Bolivar County
1,711 6 0
City of Rosedale
Rosedale · Bolivar County
1,708 4 0
Sweet Home Water & Sewer Dist
Holmes County
1,695 3 1
Lily Rose W/a #1
Jefferson Davis County
1,675 1 0
North West Kemper W/a #4
Kemper County
1,671 1 0
Spring Hill Water Assn.
Pearl River County
1,642 3 0
Town of Shaw
Bolivar County
1,639 2 0
Highway 98 East Water Assn.
Marion County
1,632 2 0
Central Yazoo W/a #5
Yazoo County
1,618 1 0
NW Kemper W/a #1-Preston
Kemper County
1,618 1 0
City of Lexington
Lexington · Holmes County
1,600 1 0
Town of State Line
Greene County
1,600 3 0
Diberville High School
Harrison County
1,599 2 0
Town of Ackerman
Choctaw County
1,594 4 0
Toccopola Water Association #2
Pontotoc County
1,592 4 1
Town of Pickens
Holmes County
1,587 1 0
Troy Water Association
Pontotoc County
1,580 1 0
Marydell Water Association
Leake County
1,573 2 0
West Marion Water Association
Marion County
1,571 1 0
Copiah W/a Gallman
Copiah County
1,566 4 0
Houston-Palestine Water Assoc
Itawamba County
1,563 3 0
East Oxford Water Association
Lafayette County
1,544 2 0
Ethel Rural Water Association
Attala County
1,544 1 0
Talking Warrior Water Assn #1
Oktibbeha County
1,539 2 0
Tallahala W/a-Garlandsville
Jasper County
1,534 1 0
New Candler Water Association
Prentiss County
1,531 2 0
J P Utility Dist #2
Jones County
1,521 1 0
Sardis Lake Community W/a
Panola County
1,521 1 0
Town of New Houlka
Chickasaw County
1,515 2 0
Town of Summit
Pike County
1,502 1 0
Delta State University
Bolivar County
1,500 4 1
Town of Shannon
Lee County
1,500 2 1
Prvwsd-Main Harbor
Madison County
1,497 2 0
Acl Water Association #1
Rankin County
1,492 2 0
Siloam W/a #6-Una System
Clay County
1,489 3 1
Town of Terry
Hinds County
1,486 3 0
Sontag-Wanilla
Lawrence County
1,484 1 0
French Camp W/a #1
Choctaw County
1,478 2 1
East Chickasaw W/a #1
Chickasaw County
1,463 1 0
Central W/a-Arlington
Neshoba County
1,460 1 0
Enon-Locke-Curtis Water Assn
Panola County
1,460 2 0
Town of Walnut
Tippah County
1,449 1 0
Wellsgate
Lafayette County
1,447 5 1
Savannah Water Association #1
Webster County
1,434 3 1
Simpson Water Association #1
Choctaw County
1,426 1 0
Town of Hickory Flat
Benton County
1,423 1 0
Oak Grove Water Assn
Jones County
1,405 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.