COUNTY WATER-SYSTEM LEDGER
Natrona, Wyoming
EPA’s September 2026 export lists 4 active community water systems serving Natrona, Wyoming, 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 Natrona, Wyoming
EPA associates 4 covered systems with Natrona, Wyoming; their reported population-served values total 69,923 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 |
|---|---|---|---|
| Casper, City OfWY5601415 | 59,000 | Surface water purchased | No current violation flagged |
| Mills, City OfWY5600036 | 4,050 | Groundwater under influence of surface water | No current violation flagged |
| Bar Nunn, Town OfWY5600067 | 4,000 | Surface water purchased | No current violation flagged |
| Evansville, Town OfWY5600018 | 2,873 | Surface water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Natrona, Wyoming
EPA classifies 4 systems serving Natrona, Wyoming across 3 primary-source categories; Surface water purchased is the largest category with 2 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.