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1 <br />' 29 January 2001 <br /> • AGE-NC Project No 00-0725 <br />' Page 4 of 11 <br />' 32 SOIL SAMPLING <br /> Soil samples collected from the base and sidewalls of the excavation were obtained using an <br />' excavator and/or metric soil sampler equipped with a 15-foot extension within a two-inch diameter <br /> brass sleeve (west wall) Soil samples were collected from the bucket of the excavating equipment <br /> with the metric soil sampling hammer and one 6-inch long by 2-inch diameter brass sleeve, from the <br /> excavated soil material The exposed ends of the sample sleeve were covered with Teflon sheets, <br /> capped and sealed with tape <br />' Soil samples were collected from the soil stockpiles by digging approximately one foot into the soil <br /> stockpile Soil samples were collected with a metric soil sampler, advancing a brass sampling sleeve <br /> into the soil stockpile <br /> Following sample collection, each sample sleeve was labeled with the boring location, depth, time, <br /> date and sampler's initials Appropriately sealed and labeled samples were placed in a chilled <br /> Icontainer under ice and transported under chain-of-custody procedure to a state-certified laboratory <br /> lie 3 3 ANALYTICAL PROTOCOL <br /> IThe excavation and stockpiled soil samples were analyzed for the following constituents <br /> • Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified, <br /> • Volatile aromatic compounds-benzene,toluene,ethylbenzene and total xylenes(BTEX) and <br /> methyl-tertiary butyl ether(MTBE) in accordance with EPA Method 8020, <br /> • Oxygenated fuel additives - di-isopropyl ether (DIPE), ethyl tertiary butyl ether (ETBE), <br /> MTBE, tertiary butyl alcohol (TBA) and tertiary amyl methyl ether (TAME), methanol, <br /> ethanol, ethyl-dibromide (EDB) and 1,2-dichloroethane(1,2-DCA) in accordance with EPA <br /> Method 8260 Modified, and <br /> I • Total lead in accordance with EPA Method 200 7/6010 <br /> 34 EQUIPMENT DECONTAMINATION <br /> Prior to sample collection, all sampling tools were thoroughly rinsed with clean water after being <br /> washed with a solution of Alconox <br /> Advanced GeoEnvironmental,Inc <br /> I <br />