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Waltham MGP Remediation Maxymillian Technologies (MT) excavated and disposed of VOC & PAH contaminated soils at the Waltham Former Manufactured Gas Plant (MGP) Site. The site was bordered by the Charles River, sensitive wetlands areas, and a housing development for the elderly. MT started site activities with silt fence installation and shoring around the 19th century site building to prevent possible structural damage. MT completed the first excavation operations in the wetlands area adjacent to the Charles River. MT backfilled the area and re-vegetated. MT then excavated a second area that included overburden and contaminated soil. MT segregated overburden from the contaminated soil that was slated for backfill. MT stockpiled contaminated soils in the laydown area and covered the soils with woven polytarps to reduce erosion and to eliminate contamination migration. Half way through the project, the scope expanded to include the demolition of an asbestos-contaminated building. MT first decontaminated the building using MT asbestos removal supervisors and technicians. MT then demolished and disposed of the building off-site. During excavation activities, MT discovered tar holders in the area of the building foundation that contained pure tar product. MT emptied, containerized and sent the tar holders off-site for disposal. MT processed the site's contaminated soil with a portable processing plant. MT shredded and screened the soils to 1 inch minus. Soil meeting the disposal requirements was transported to a New York State Electric and Gas Corporation (NYSEG) facility for disposal. When all waste material was transported off-site, MT re-vegetated the site and paved all graveled areas.
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above: MT Excavated and removed contaminated soils. below: MT placed heavily impacted soil in a bermed, poly lined holding area. 
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