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c On 04 November 1999, six soil probe borings (PB 1 through PB6) were advanced at the site under EHD oversight. Probe borings were advanced in the area of the former USTs, dispenser and northwest to the property line; a total of 11 soil samples were submitted for analysis. In addition, grab ground water samples were collected from borings P13-1, PB-4 and PB-5 and were submitted for analysis. • Only soil samples from PB-4 contained detectable concentrations of BTEX compounds ranging from 0.006 mg/kg to 0.099 mg/kg.No other analytes were detected above laboratory reporting limits. • TPH-g, TPH-d and BTEX compounds were detected in all three ground water samples at concentrations as high as 100,000 µg/1, 36,000 µg/1 and 11,000 µg/1, respectively. On 18 and 19 November 1999 two ground water monitoring wells(MW-4 and MW-7)were installed on-site. A total of 4 soil samples were submitted for analysis. • TPH-g,TPH-d and BTEX compounds were detected in only the 5-foot soil sample collected from MW-4 at concentrations of 940 mg/kg,270 mg/kg,9.6 mg/kg,9.8 mg/kg,20 mg/kg and 48 mg/kg, respectively. On 13 March 2001, two soil borings (CPT-1 and CPT-2) were advanced on-site utilizing CPT technology to model the geological and hydrogeological framework and to assess the vertical extent of dissolved petroleum-hydrocarbons beneath the site. A total of four"grab"ground water samples were collected from CPT-1 and CPT-2 and submitted for laboratory analysis. TPH-g,TPH-d and BTEX compounds were detected only in the water sample collected from CPT-2 (61 to 65 feet bsg), at concentrations of 110µg/1 TPH-g, 85 µg/1 TPH-d, 2.4 µg/1 benzene, 3.3 µg/1 toluene, 1.3 µg/1 ethylbenzene and 5.9 µg/1 total xylenes. Laboratory analysis of grab ground water samples collected from CPT-1 at depths of 26 feet to 30 feet, did not report any of the analytes at or above laboratory reporting limits. Fuel oxygenated compound were not detected in the ground water samples. To date,seventeen ground water monitoring events have been conducted at the site. The lateral and vertical extent of impacted soil and the lateral extent of impacted shallow ground water at the site have been defined in all directions. The vertical extent of deeper impacted ground water has been defined toward the north and is fairly well defined in the southern portion of the site.