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Z2 Sampling Activities On August 7, 2003, Shaw personnel collected five soil samples from the tank and fuel island excavation under the direction and supervision of Mr. Dennis Catanyag of the SJCEHD. Three soil samples were collected from the tank excavation, two feet into native soil below the base of the former tank. Soil samples TP-01(18') and TP-02(19') were collected from beneath the gasoline compartment of the former tank at depths of 18 and 19 feet below surface grade (bsg), respectively. Soil sample TP-03(19')was collected from beneath the diesel compartment of the tank at a depth of 19 feet bsg. The soil samples were collected by pushing a sample tube into the soil,collected using the bucket of the backhoe, until full. Two additional soil samples, labeled DI-01(51/2') and DI-02(5'/2'), were collected beneath the former fuel dispenser island at a depth of approximately 51/2 feet bsg (2 feet into native soil below the base of the dispenser island). The soil samples were collected by pushing a sample tube into the soil, collected using the bucket of the backhoe, until full. In order to evaluate soil re-use or disposal options, two 4-point composite soil samples, labeled CS(1-4) and CS(5-8), were collected from the soil stockpile of the former tank and fuel island excavations. The soil samples were collected by pushing eight sample tubes into the stockpile at random locations until full. `a After each soil sample was collected, the ends of the sample tubes were covered with Teflon tape and capped. The soil samples were then appropriately labeled, placed in a cooler with ice, and +r transported under chain-of-custody protocol to the analytical laboratory. A copy of the chain of custody is included in Appendix E. 2.3 Sample Analyses w The samples were transported and submitted to McCampbell Analytical, Inc., an ELAP-certified laboratory in Pacheco, California. The samples were analyzed for total petroleum hydrocarbons as diesel (TPH-D) and total petroleum hydrocarbons as gasoline (TPH-G) using EPA method 8015 (modified). The samples were further analyzed for benzene, toluene, ethylbenzene, and xylenes (BTEX)constituents using EPA method 8021B, and for the fuel oxygenates di-isopropyl ether,(DIPE), ethyl tert-butyl ether(ETBE), methyl tert-butyl ether(MTBE), tert-amyl methyl ether(TAME), and tert-butyl alcohol (TBA) using EPA method 826013_ The soil stockpile +y samples were also analyzed for total lead using EPA method 7010. CNCD\10-7-0310:SHARMUST 03-0122.dac 3