Bauer has announced that it has been awarded a contract worth over €100M (£70M) to undertake remediation of a former landfill site in Germany.
The work, which will be undertaken by Bauer Resources division subsidiary Bauer Umwelt, is the biggest contract ever secured by the Bauer group.
The Kesslergrube landfill in Grenzach-Whylen was operational from the mid-1950s and closed in 1976. Waste at the site is reported to include residential, construction, industrial and chemical material.
Under the deal with landfill owner Roche Pharma, remediation specialist Bauer Umwelt will excavate, remove, thermal dispose of the soil and backfill the excavated pit. Use of Bauer’s solution will reduce the length of the work by one year and was a key factor in Roche’s award of the contract.
The primary task is to excavate 280,000t of waste material and remove it for off-site treatment but before excavation starts, Bauer Spezialtiefbau will construct a secant piled wall around the 23m deep excavation pit.
The work will also include raster sampling of the construction site, sampling and declaration analysis of excavated batches, protection of property, maintenance of thoroughfares, health protection and occupational safety measures for employees, multi-stage noise protection measures, hydraulic protection and groundwater control in the pit area as well as measures to keep the pit dry during the excavation phase. Bauer will also construct and operate the temporary pier that will serve as a handling plant on the Rhine for delivery of backfill material and construction site equipment as well as for removal of excavated material in accordance with official permits. Bauer will build the multi-stage treatment plant for groundwater remediation on the east side of the pier. Bauer will also install airlock areas including a washer system for construction staff and equipment, build enclosures and canopies and install the ventilation system.
Work on site is expected to start in August and take until 2020 to complete when the site will be developed for commercial use.