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Beverly Sediment Removals Maxymillian Technologies (MT) excavated mercury contaminated sediment from a riverbank adjacent to the Morton International, Beverly Facility. The 3-acre site lies on the Massachusetts Bay, approximately 15 miles northeast of Boston, at the confluence of the Bass and Danvers Rivers. The site formally converted uranium oxide to uranium metal powder using calcium hydride. To prevent spread of contamination, MT implemented several measures of various types that included sediment control structures, and coordinating sediment removal work with river tidal flow. MT designed a siltation control system of concrete Jersey barriers installed outside the excavation area boundary. MT secured the concrete barriers with 20' long 1-1/2" diameter steel pipe. MT then placed a specially-designed turbidity curtain constructed from filter fabric and deep water floatation booms along the concrete barriers. MT excavated and dewatered the mercury-contaminated sediments. After the known areas of contamination were excavated, testing indicated the need for additional excavation to remove all contaminated sediment. MT conducted this additional excavation on the client-preferred, as-needed basis. MT then loaded the contaminated sediment into lined, leak-proof trailer dumps and hauled them to a disposal facility to be stabilized and landfilled. All trucks and equipment were thoroughly decontaminated on an MT constructed and removed decontamination pad prior to leaving the site
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Specially designed siltation control system allowed excavation in tidal zone. 
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