PROJECT BACKGROUND

A 14-acre MGP cleanup project in Granville, New York. A substantial portion of this multi-phased MGP remediation was to perform in-situ soil mixing of the coal tar contaminated soils to a clay or rock bottom approximately 14-20’ below the existing surface. DAC’s subcontractor provided two 220-ton crawler cranes outfitted with 10ft.-diameter vertical mixing augers, plus a grout plant capable of supplying Portland Cement grout to both cranes. Multiple crews soil mixed 42,000 CY of various site soils, encapsulating the contaminated soil in a permanent subsurface concrete monolith. DACE supported this operation with multiple excavator crews, assisting with moving these large cranes throughout the site and managing excess grout swell and drilling spoils.

SERVICES PERFORMED