South Dakota
Brown County drinking water quality
22 active public water systems serve 58,830 people in Brown County. 13 are compliant, 9 had at least one EPA violation in the past three years, 0 are designated serious violators, and 1 carries a health flag.
Needs attention
Community water systems
22 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Aberdeen Aberdeen |
27,989 | 1 | 0 | |
|
Web Water Development Association Aberdeen |
20,750 | 0 | 0 | |
|
Brown-Day-Marshall Rws Britton |
5,673 | 0 | 0 | |
|
Groton Groton |
1,380 | 0 | 0 | |
|
Warner Warner |
485 | 0 | 0 | |
|
Lakeside Estates Aberdeen, Excelsior |
460 | 2 | 1 | |
|
Country Village Park Aberdeen, Cando |
340 | 0 | 0 | |
|
Prairiewood Property Owners Aberdeen |
300 | 0 | 0 | |
|
Frederick Frederick |
215 | 0 | 0 | |
|
Hecla Hecla |
200 | 1 | 0 | |
|
Claremont Britton, Claremont |
108 | 0 | 0 | |
|
Jobee Acres Aberdeen |
108 | 5 | 2 | |
|
Long Lake Colony Aberdeen, Westport |
107 | 0 | 0 | |
|
Pleasant Valley Estates Aberdeen |
105 | 2 | 0 | |
|
Hutterville Colony South Dakota INC Beresford, Stratford |
90 | 1 | 0 | |
|
Northwood First Subdivision Aberdeen |
90 | 1 | 0 | |
|
Westport Sanitary District Aberdeen, Westport |
88 | 1 | 0 | |
|
Rolling Meadows Aberdeen |
83 | 0 | 0 | |
|
The Meadows Aberdeen |
80 | 2 | 0 | |
|
Richmond Heights Homeowners Associat Aberdeen |
67 | 0 | 0 | |
|
Stratford Stratford |
57 | 0 | 0 | |
|
Green Acres Association Bath |
55 | 0 | 0 |
Inactive systems (29, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.