COUNTY WATER-SYSTEM LEDGER
Lake, South Dakota
EPA’s September 2026 export lists 3 active community water systems serving Lake, South Dakota, with 0 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Lake, South Dakota
EPA associates 3 covered systems with Lake, South Dakota; their reported population-served values total 14,879 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| MadisonSD4600199 | 6,191 | Ground water | No current violation flagged |
| Big Sioux Community Water SystemSD4600429 | 5,800 | Ground water | No current violation flagged |
| Kingbrook Iii Rural Water SystemSD4600874 | 2,888 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Lake, South Dakota
EPA classifies 3 systems serving Lake, South Dakota across 1 primary-source categories; Ground water is the largest category with 3 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.