Subsurface Soils Exploration for Potential Pit Disassembly and Conversion Project Sandfilter FootprintCX(s) Applied: B3.1Date: 07/20/2010Location(s): Aiken, South CarolinaOffice(s): Savannah River Operations Office
Office of NEPA Policy and Compliance
July 20, 2010
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Subsurface Soils Exploration for Potential Pit Disassembly and Conversion Project Sandfilter Footprint
CX(s) Applied: B3.1
Date: 07/20/2010
Location(s): Aiken, South Carolina
Office(s): Savannah River Operations Office
A geotechnical investigation will utilize Cone Penetrometer Testing (CPT) to assess for potential "soft zones" in the Pit Disassembly and Conversion (PDC) Project sandfilter footprint. This soils exploration will aid in Conceptual Design for the K-Area PDC project relative to sandfilter placement. The coordinates of the investigation locations are given below. There is flexibility with the location of the investigations (soil punches), such that a point can be adjusted so as not to interfere with any Federal Facility Agreement (FFA) areas. The CPT investigations involves pushing an 1 7/8 inch steel rod, outfitted with transducers, to determine in-situ soil properties. The steel rods are advanced by hydraulic rams to depths of approximately 180 feet. Upon completion of each test hole, the hole is grouted to the surface using a Portland cement-bentonite grout. There will be no soils removed. The only waste created will be from rinsate to flush test rods. The soil investigation is expected to "push" approximately 25 test holes.