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Discussion of Additional Assessment Soil Chemical Data The site assessment revealed that low concentrations of highly degraded (relatively depleted in volatile constituents) contaminants were present in the capillary fiinge at PB- 17 (advanced through the edge of the former UST pit), at PB-15, 16 and 19 (immediately down-gradient of the former UST pit)at PB-10 and PB-18 near MW-9, and at PB-13 near MW-3. Other capillary fringe samples showed that contaminants were not detected. Intermediate depth soil samples also showed that contaminants were not detected with the exception of PB-14-4 at 22 feet where 0.014 parts per billion (ppb) of Xylene were detected. Contaminants were not detected in the deepest soil samples at PB-12-5 at 26 feet and PB-13-5 at 26 feet. MTBE and oxygenates were not detected in any soil sample. Soil samples collected at the 25-26 foot depths in PB-13, 18 and 19 showed that contaminants were not detected (see Tables I,2 and Figures 1, 2, 3, and 4). - Reconnaissance Groundwater Chemical Data Four reconnaissance groundwater samples were collected on April 25, 2001, and all contained various concentrations of TPHG and BTEX contaminants (see Table 2). The highest concentrations observed from the April 25, 2000 borings were at PB-11 (31,000 ppb TPHG and 170 ppb Benzene) and at PB-13 (2I,000 ppb TPHG and 160 ppb Benzene). MTBE and oxygenates were not detected in any groundwater sample (see Table 3). Volatile constituents BTEX were present primarily in borings placed in and around monitoring wells MW-3, MW-9 and the former UST pit. The seven reconnaissance groundwater samples from the April 19, 2001 borings collected at depths of 20-26 feet ranged from 1,700 to 5,600 ppb TPHG(see Table 4). The highest concentrations were in PB-16 (down-gradient of the former pit), PB-17 in the former tank pit) and PB-18 (about 5 feet from MW-9). Similar concentrations ofTPHD were observed although the laboratory reported that these did not match the standard, and are assumed to represent degraded petroleum compounds. Benzene concentrations were low, with the highest at PB-15, 16 and 19, at 92 ppb, 35 ppb and 27 ppb respectively just down-gradient of the former tank pit. The laboratory reports that these appeared to be degraded contaminants and in some cases did not match the laboratory standards. Pne 7