Categorical Exclusion Determination
Office of NEPA Policy and Compliance
May 10, 2016
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Diesel fuel from the supply tank for TRA-786-M-1 diesel was released to soil when the supply line failed. This proposed action is to complete the cleanup of diesel contaminated soil that could not be removed at the time of the spill due to the location of the stabilizer barriers located under the 786-M-1 trailer. The 786-M-1 diesel trailer, electrical wiring, control boxes, and stabilizing barriers will have to be removed to allow for removal of diesel contaminated soil. Once the contaminated soil has been removed, new fill will be brought in and compacted per seismic standards, and a pre-cast concrete pad will be installed for the trailer’s landing gear. The trailer and control boxes will be reinstalled and equipment placed back in service.