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Pownal Tannery Superfund Site Maxymillian Technologies (MT) was contracted through the Army Corps New England Remedial Action Contract (NERAC) to conduct demolition operations and on-site landfill activities and upgrades. Prior to conducting demolition work, MT characterized, categorized, consolidated and disposed of several unknown drums. Primary contaminants were heavy metals and solvents. MT then conducted demolition activities that included a seven-phase removal of hazardous materials, demolishing the primary complex buildings, and loading out materials for off-site disposal. Demolition activities commenced with the Northern Building, and proceeded to the Screen House, Smokestack, Central and Block Buildings, with the Tank and Clarifier Buildings concluding demolition activities. MT's demolition procedures incorporated highly trained personnel, proper equipment, and extensive support systems to effectively conduct all site operations in accordance with specifications, site plans, and regulations. MT's site preparation activities included mobilization, erosion control, and drainage structure protection. MT implemented effective dust suppression measures throughout all work activities. MT also oversaw air-monitoring measures to ensure worker protection and safety. Prior to demolition, MT removed approximately 5,250 tons of contaminated soil from beneath the Northern and Central Buildings. Contaminated soils were transported to the on-site landfill for disposal. For maximum efficiency, MT demolished in a sequential order, starting on the first floor of the Northern building. MT used the exposed basement floor as a staging area for the remainder of the demolition phase. In the basement, MT located an excavator with extended boom to reach through the floor and grab material along the length of the building. A second excavator stationed on the ground level simultaneously reached into the material storage and transfer area to grab debris from the separated piles. MT conducted site landfill activities and operations on an expedited schedule in winter weather conditions. MT's landfill scope of work included: upgrading the haul road to the on-site landfill, operating existing leachate pumping that included treating landfill leachate, decommissioning the existing leachate collection tank, installing a new tank with electrical leak detection monitoring, extensive debris handling and separation from soil and soil transport to the on-site landfill, excavating, and placing, spreading and compacting soil in the on-site landfill. After the original projects, MT was re-contracted to remove and dispose of 3600 tons of metal-contaminated soil and debris from the Hoosic River, restore and stabilize the riverbank, and to decontaminate the remaining warehouse on the Tannery site.
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above: Demolition and dust control. below: MT carefully demolishing abandoned tannery building adjacent to a river. 
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