Once a liner is installed at the Struckhoff landfill the facility will have about seven to eight more years of life.

That is according to John Nilges, director of public services, who told the Washington City Council Monday that the geosynthetic liner must be installed over the clay liner at the landfill before the cell can open.

The council voted 7-0 to enter into a contract with Comanco Environmental Corporation to install the liner. Comanco was the low bidder at $259,828, which was under the engineer’s estimate of $268,700. Three other bids were submitted by MidAmerica Liner, $261,712.91; Geo-Synthetics Systems LLC, $284,413; and Clean Air & Water Systems, $308,121.25. Councilman Jeff Mohesky was not at Monday’s meeting.

Nilges said installing the liner will be done quickly, but there has been limited supplies of the liner material. He added that he will meet with the contractor to develop a timetable.

“We were hoping to be open by August but we may not be open until September,” he said.

Nilges noted that the Missouri Department of Natural Resources has been working with the city and allowed the city to take measures to continue using the landfill until the new cell opens.

Background

Washington city staff began moving forward in January with plans to open a landfill cell in lieu of a transfer station. The city had been exploring opening a transfer station and closing the landfill for a few years.

The landfill permit on the Struckhoff farm property off of Bluff Road will expire this year. In order to move to the next phase of waste management, the city has increased the tipping, or gate, fees at the landfill $10 from $70 to $80 per ton.

Last year in May the city upped the tipping from $47.50 per ton to $70 per ton. At that time the minimum fees were reduced from $17.50 to $15. The reduction in the minimum fee was to benefit Washington residents who take a “curbside” load to the landfill.

In December, the consultant for the transfer station provided a $2.7 million cost estimate to build the facility. However, under the purchase agreement for the Struckhoff property, a landfill must be operated until September 2019.

Earlier this year, Nilges projected that by opening the new cell, it would generate $5.4 million in revenue. That would fund the future closure of the landfill, opening of the transfer station, operations and other costs.

Clay Liner

McFry Excavating Inc., Manchester, conducted excavation work at the site and SCS Engineers, St. Louis, is contracted for permitting, design, and construction management for two new cells at the Struckhoff landfill.

In April, the clay liner at the site did not meet minimum state standards so work began to change the moisture content and bring the material into compliance.

Crews began adding water to the clay and compacting it to get the correct mixture of materials to meet specification.