COUNTY WATER-SYSTEM LEDGER
McCook, South Dakota
EPA’s September 2026 export lists 4 active community water systems serving McCook, 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 McCook, South Dakota
EPA associates 4 covered systems with McCook, South Dakota; their reported population-served values total 33,690 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 |
|---|---|---|---|
| Minnehaha Community Water CorpSD4600432 | 13,435 | Ground water | No current violation flagged |
| By Water DistrictSD4600865 | 13,320 | Surface water | No current violation flagged |
| Tm Rural Water DistrictSD4600999 | 4,250 | Surface water purchased | No current violation flagged |
| Hanson Rural Water SystemSD4600878 | 2,685 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
Primary water sources for McCook, South Dakota
EPA classifies 4 systems serving McCook, South Dakota across 3 primary-source categories; Ground water is the largest category with 1 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.