Tapcensus

Stage 1 Disinfectants and DBP Rule violations in South Dakota

9 active public water systems in South Dakota had a Stage 1 Disinfectants and DBP Rule violation in the past three years, 9 of them in the latest quarter of EPA's data. What Stage 1 Disinfectants and DBP Rule is and why it matters.

Health effects: See TTHMs (2950) and HAA5 (2456) for their specific health effects. Bromate is a probable human carcinogen (Group B2). Chlorite at elevated levels can cause hemolytic anemia, particularly in infants, developing fetuses, and individuals with certain enzyme deficiencies. Violations indicate the system exceeded one or more of these byproduct or disinfectant limits.

Systems with a Stage 1 Disinfectants and DBP Rule violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Wessington Springs
Wessington Springs · Jerauld County
895 3 1
Valley View Estates
Sioux Falls, Spokane · Minnehaha County
230 1 1
Hosmer
Hosmer · Edmunds County
170 3 1
Jobee Acres
Aberdeen · Brown County
108 5 2
Fairburn Water Association
Fairburn · Custer County
65 3 1
North Hermosa Wud
Hermosa · Custer County
40 3 2
Vivos Xpoint
Del Mar, Edgemont · Fall River County
40 4 1
Boulder Colony
Hosmer · Edmunds County
26 1 1
Darlington Estates
Rapid City · Pennington County
25 2 0
About this data

A system is counted once if any of its violations in the past three years involved Stage 1 Disinfectants and DBP Rule, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Stage 1 Disinfectants and DBP Rule 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 Dakota 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.