CITY WATER-SYSTEM LEDGER
Oskaloosa, Iowa
EPA’s September 2026 export lists 2 active community water systems serving Oskaloosa, Iowa, 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 Oskaloosa, Iowa
EPA associates 2 covered systems with Oskaloosa, Iowa; their reported population-served values total 22,626 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 |
|---|---|---|---|
| Oskaloosa Municipal Water DeptIA6273005 | 12,808 | Groundwater under influence of surface water | No current violation flagged |
| Mahaska Rural Water System, Inc.IA6273901 | 9,818 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Oskaloosa, Iowa
EPA classifies 2 systems serving Oskaloosa, Iowa across 2 primary-source categories; Groundwater under influence of surface 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.