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Xx July 1999 AGE -NC Project No. 99-0557 Page 2 of 8 Environmental Health Division (PHS-EHD) inspector. In addition, there were no reported detections of benzene, toluene, or total xylenes in a soil sample collected beneath the gasoline UST. 3.0. SCOPE OF SERVICES The Preliminary Site Investigation was conducted according to the scope of work presented in the AGE -prepared Preliminary Site Assessment Work Plan, dated 13 May 1999. The investigation consisted of the following scope of work: • Advancement of 17 soil probe borings at former gasoline and waste oil UST locations, hydraulic lift locations, and areas of surficial staining. • Collection of soil samples from each probe boring. • Collection of ground water samples from three soil probe borings. • Laboratory analysis of selected soil and ground water samples for aromatic volatile organic compounds - benzene, toluene, ethylene, and total xylenes (BTEX); total petroleum hydrocarbons (TPH) quantified as gasoline, diesel, and motor oil; fuel oxygenating compound methyl tertiary -butyl ether (MTBE); and polychlorinated biphenyls (PCBs). • Preparation of this report presenting AGE's findings, conclusions, and recommendations. 4.0. SITE INVESTIGATION ACTIVITIES On 01 and 02 June 1999, AGE personnel conducted soil and ground water sampling activities at the site. Prior to mobilization, the site location was clearly marked and utility clearance obtained through Underground Service Alert. Detailed field procedures and protocols are presented in Appendix A. Results of soil and ground water sample laboratory analysis are discussed in Sections 5.2 and 5.3, respectively. 4.1. SOIL PROBE BORINGS A total of 17 soil probe borings (P-1 through P-17) were advanced in the vicinity of the former gasoline UST, the former waste oil UST, hydraulic lifts, and areas of surficial staining (Figure 2). Soil probe borings were advanced by Geoprobe techniques. Soil probe boring procedures are presented in Appendix A. Soil probe borings P-1 through P-9 were advanced adjacent to active in -ground hydraulic lifts Advanced CcoEnvironmental, Inc.