Ottumwa Generating Station and Ottumwa-Midland Landfill are located in Ottumwa, Iowa.
The CCR units and the regulatory designation of the units at Ottumwa are:
• OGS Ash Pond (existing surface impoundment)
• OGS Zero Liquid Discharge Pond (inactive surface impoundment)
• OML Landfill Expansion - Phase 1 (existing landfill)
• OML Landfill (existing landfill)