Categorical Exclusion Determination
Office of NEPA Policy and Compliance
December 18, 2018
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The purpose of this revision is to update the location of boreholes at the Materials and Fuels Complex. The seismic station was installed in November 2018 at a new location. The borehole locations are also different from the original environmental checklist. Two boreholes will be used to collect seismic velocity measurements. Once those data are collected, the United States Geological Survey will complete the two boreholes to monitor groundwater.