Tapcensus

Total Haloacetic Acids (HAA5) violations in South Carolina

11 active public water systems in South Carolina had a Total Haloacetic Acids (HAA5) violation in the past three years, 2 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
Conway City of (sc2610008)
Conway · Horry County
27,005 2 0
Newberry CO W&sa (sc3620002)
Newberry · Newberry County
11,157 1 1
Bjw&sa (sc0720003)
Beaufort County
164,829 1 0
Myrtle Beach City of
Myrtle Beach · Horry County
49,375 2 0
Conway Rural (sc2620001)
Conway · Horry County
12,740 2 0
Pickens Water Treatment Plant SC3910001
Pickens · Pickens County
10,263 1 0
Kingstree Town of (sc4510002)
Kingstree · Williamsburg County
6,009 3 1
Daniel Morgan Water District (1120001)
Gaffney · Cherokee County
5,746 1 0
Loris City of (sc2610010)
Loris · Horry County
4,350 4 2
Gcwsd Carvers Bay (sc2220013)
Georgetown County
3,133 1 0
Bcwsa Lake Moultrie Estates (0820004)
Moncks Corner · Berkeley County
156 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 South Carolina 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.