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TA 1 t; (TPHg and TPHd) using EPA Method 8015; and for benzene, toluene, ethylbenzene, and total xylenes (BTEX) using EPA Method 8020. Petroleum hydrocarbons were not detected in the soil samples collected from the sidewalls of the tank cavity (Table 1). Ground Zero collected three groundwater samples from the tank cavity and submitted the samples to Argon for analysis of TPHg g usin EPA Method 8015, and BTEX using EPA Method 8020. One of the water samples was also analyzed for TPHd using EPA Method 8015. Gasoline and diesel hydrocarbons were detected in the water samples collected from the tank cavity (Table 2). Laboratory reports and chain of custody records are included in Attachment B. On April 3, 1995 Ground Zero collected an additional water sample at a depth of approximately 6 feet bgs from the tank cavity and submitted the sample to Argon for analysis of TPHg and TPHd using EPA Method 8015 and BTEX using EPA Method 8020. Lower concentrations of gasoline hydrocarbons and diesel hydrocarbons were detected in the water sample (Table 2). Laboratory reports and chain of custody records are included in Attachment B. On April 11, 1.995 Ground Zero collected two additional water samples from the tank cavity and submitted the samples to Argon for analysis of TPHg and TPHd using EPA Method 8015, and BTEX using EPA Method 8020. One of the water samples was also analyzed for total lead using EPA Method 7420. Petroleum hydrocarbons and lead were not detected in the water samples (Table 2). Laboratory reports and chain of custody records are included in Attachment B. On the afternoon of April 11 and the morning of April 12, 1995 SSSE deepened the tank cavity in order to remove potentially impacted saturated soil from beneath the former USTs. Approximately 180 additional cubic yards of saturated soil were bermed and stockpiled onsite in order to dry, and profiled for disposal. On April 12, 1995, at the direction of S.ICPHS-EHD, Ground Zero collected three soil samples from the bottom of the deepened tank cavity at the locations shown on Figure 2. The samples were collected at a depth of approximately 14.5 to 15 feet bgs. The soil samples were sent to Argon and analyzed for TPHg and BTEX using EPA Methods 8015 and 8020, respectively. In addition, one sample was analyzed for TPHd using EPA Method 8015. Petroleum hydrocarbons were not detected in the soil samples collected at the bottom of the UST excavation (Table 3). Laboratory reports and chain of custody records are included in Attachment B. DISPENSERS AND PRODUCT LINES On April 5, 1995 Ground Zero collected soil samples from beneath the former dispensers and product lines at the locations shown on Figure 2. Soil samples were sent to Argon and analyzed for TPHg and BTEX using EPA Methods 8015 and 8020, and total lead using EPA Method 7420. Selected samples were also analyzed for TPHd using EPA Method 8015 (Table 4). Gasoline hydrocarbons were detected in the soil sample (1,313) collected at a depth of approximately'5 feet bgs from the eastern end of the southern dispenser/product line excavation. Petroleum hydrocarbons were not detected in any other soil samples. Total lead was not detected in soil samples collected from below the product lines and the d ispensers. _ 2