Regional Long-Term Operations/Monitoring for Seven Installations
Ohio, Illinois, Missouri, & Kansas

LATA provides long-term operations (LTO) and long-term monitoring (LTM) at seven army installations located in Ohio, Illinois, Missouri and Kansas in accordance with Installation Restoration Program requirements.

Work Performed:

  • O&M of dual phase extraction systems
  • Optimization evaluations of extraction systems and LTM to achieve efficient closure
  • Collection of groundwater samples on a quarterly and semiannual basis
  • Monitoring natural attenuation of groundwater contaminant concentrations
  • Management of investigation-derived waste
  • Abandonment of groundwater monitoring wells
  • Inspection of landfills and their associated monitoring wells
  • Maintenance and routine repair of landfills including landfill cover repair and placement of fill within subsidence trenches
  • Landfill seep sampling and gas monitoring
Fort Leonard wood 2

LATA is also responsible for evaluations of current and planned land use to ensure that activities are conducted in accordance with the Land Use Control Implementation Plan. The sites include:

  • Fort Leavenworth
  • Fort Riley
  • Fort Leonard Wood
  • Louis Ordnance Plant
  • Weldon Spring Ordnance Works,
  • Charles Melvin Price Support Center
  • Kings Mills U.S. Army Reserve Center


Project stakeholders include the USACE, US EPA, and the appropriate state regulators.


Fort Leavenworth

LTO / LTM at 11 sites at Fort Leonard wood includes groundwater monitoring, landfill inspections, and maintenance.

Fort Riley

At Fort Riley LTO / LTM is conducted at 7 inactive landfills ranging in size from 64 to 120 acres. Three sites include O&M of dual phase extraction systems.

Fort Leonard Wood

At Fort Leonard Wood groundwater sampling utilizes passive diffusion bag samplers at 14 inactive landfills.