Phase 1 Environmental Baseline Survey for the Acquisition of a Utility Easement by Clark County from Nellis Air Force Base, Clark County, Nevada

摘要

This Phase I Environmental Baseline Survey report was prepared to support the proposed acquisition of a utility easement on approximately 1.63 acres of property (hereafter referred to as subject property) from Nellis Air Force Base (AFB) by Clark County, Nevada for installation of a sanitation line. The subject property in consideration is in the eastern portion of Area III, and is located at the intersection of North Sloan Lane and Las Vegas Boulevard near the northern boundary of Nellis AFB, Clark County, Nevada (see Appendix B, Figures 1 and 2). This report was prepared and the site reconnaissance was conducted according to Air Force Instruction 32-7066: Environmental Baseline Surveys in Real Estate Transactions and the American Society for Testing and Materials Standard ASTM E1527-05, which define good commercial and customary practices in the United States for conducting an environmental site assessment of a parcel of commercial real estate with respect to the range of contaminants within the scope of the Comprehensive Environmental Response, Compensation, and Liability Act (42 USC 9601) and petroleum products. According to information gathered from document searches, interviews, and the site reconnaissance, Gulf South Research Corporation (GSRC) found evidence of contamination in connection with the subject property and adjacent properties; however, remediation and restoration actions are underway to remove the contamination. Nine Environmental Restoration Program (ERP) sites exist within 1 mile of the subject property. Six ERP sites, DP-09, LF-11, DP-25, SS-29, SS-30, and FT-19 have been closed with no further remedial action planned. Remediation is ongoing at two sites, ST-27 and SS-28, and closure of these sites is expected in 2010. Recognized environmental conditions exist on the subject property due to an ongoing restoration of a contaminated groundwater plume emanating off- site, and due to an ongoing assessment and restoration of a recent pipeline leak.