A source control decision was signed by the WDNR Secretary in March 1994, calling for Sauk County to install a multi-layered soil cap and gas extraction system at the landfill. Sauk County completed construction of the landfill cap and gas system in November 1994. A groundwater decision was signed in August 1995, calling for Sauk County to implement a groundwater monitoring plan. The vegetated landfill cap is maintained by Sauk County. Groundwater monitoring wells are sampled twice yearly and the gas extraction system continues to operate.
Landfill gas is destroyed using a flare.
Groundwater data collected over the past several years indicate that groundwater quality continues to improve down gradient of the landfill.