Chlorine (MRDL) violations in South Dakota
33 active public water systems in South Dakota had a Chlorine (MRDL) violation in the past three years, 5 of them still unresolved. What Chlorine (MRDL) is and why it matters.
Systems with a Chlorine (MRDL) violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Marty Water System County |
420 | 4 | 0 | |
|
Flandreau School County |
375 | 4 | 1 | |
|
Lake Andes Tribal Housing Water System County |
264 | 4 | 0 | |
|
Wagner South Housing Water System County |
200 | 4 | 0 | |
|
Wagner North Housing Water System County |
180 | 4 | 0 | |
|
Lincoln County Rural Water System Sioux Falls · Lincoln County |
5,965 | 1 | 0 | |
|
Eagle Butte Eagle Butte · Dewey County |
4,000 | 3 | 0 | |
|
Selby Selby · Walworth County |
645 | 2 | 0 | |
|
Avon Avon · Bon Homme County |
590 | 1 | 0 | |
|
White River White River · Mellette County |
533 | 1 | 0 | |
|
Bowdle Bowdle · Edmunds County |
470 | 2 | 0 | |
|
Valley Heights Estates INC Sturgis, Westminster · Pennington County |
320 | 1 | 0 | |
|
Pine Ridge Hospital County |
316 | 7 | 0 | |
|
Roscoe Roscoe · Edmunds County |
269 | 2 | 0 | |
|
Henry Henry · Codington County |
256 | 3 | 0 | |
|
Nisland Nisland · Butte County |
206 | 4 | 2 | |
|
Pine Hills Park Black Hawk, Summerset, Wellesley · Meade County |
200 | 3 | 1 | |
|
Horseshoe Acres Water Association Piedmont · Meade County |
180 | 2 | 0 | |
|
Our Lady of Lourdes School County |
170 | 2 | 0 | |
|
Batesland Batesland, Martin · County |
148 | 1 | 0 | |
|
Conde Conde · Spink County |
142 | 2 | 0 | |
|
Buffalo Gap Buffalo Gap · Custer County |
126 | 3 | 0 | |
|
Java Java · Walworth County |
121 | 1 | 0 | |
|
Vale Sanitary District Vale · Butte County |
120 | 2 | 0 | |
|
Jobee Acres Aberdeen · Brown County |
108 | 5 | 2 | |
|
Eden Eden · Marshall County |
94 | 1 | 0 | |
|
Wallace Wallace · Codington County |
91 | 1 | 0 | |
|
Wasta Wall, Wasta · Pennington County |
84 | 1 | 0 | |
|
Riverside Mobile Home Court Spearfish · Butte County |
75 | 2 | 0 | |
|
Fairburn Water Association Fairburn · Custer County |
65 | 3 | 1 | |
|
Copper Oaks I New Underwood, Rapid City · Pennington County |
64 | 2 | 0 | |
|
Ward Ward · Moody County |
41 | 1 | 0 | |
|
Provo Area Water System Edgemont · Fall River County |
25 | 4 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) 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. Retrieved from ECHO on Oct 11, 2026.