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Concord Pond Wetlands Cover Construction Maxymillian Technologies (MT) completed a full-scale forested wetlands remediation of Concord Pond and its surrounding areas. MT's activities included installing a storm water discharge drainage, installing outfall swales and erosion control measures (silt fence, hay bales, floating booms), excavating, filling, grading, and site restoration. MT implemented dewatering as-needed throughout the entire project. MT constructed a dewatering system of a 55-gallon drum filled with crushed stone and small pump. MT processed any water that required treatment through carbon vessels and then deposited the water on-site. MT cleared and grubbed the south side of the site prior to installing the 8' wide, precast concrete outfall swale. For swale installation, MT excavated the area to subgrade, placed a 60-mil HDPE liner, and then placed sand, geotextile, and gravel to grade. After completing the outfall swale, MT installed the box culvert and backfilled. MT then installed a temporary, 4' diameter, corrugated metal pipe water diversion culvert and a sheeted water diversion channel. The channel rerouted the water flow towards the temporary culvert, bypassing the work area. This allowed MT to construct the peninsula area with pond fill and wetland topsoil. MT protected the perimeter banks with riprap. The final installation was a 5' wide precast swale, layered with Geotextile, crushed gravel, and common fill. MT removed all temporary measures and restored all construction-disturbed areas back to their original condition once all construction activities were complete. After approved and Owner acceptance, MT demobilized from the site leaving it in a clean and orderly fashion.
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Long-reach excavator is used to trap and remove coal tar contamination without disturbing wetlands. 
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