Ottumwa Generating Station (OGS) and Ottumwa-Midland Landfill (OML) are facilities located in Ottumwa, Iowa.  The Ottumwa-Midland Landfill and its Ottumwa-Midland Phase 1 Expansion are located approximately 12 miles from OGS at a separate facility on the other side of the Des Moines River. 

The CCR units and the regulatory designation of the units at OGS and OML 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)