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20 November 2002 <br /> i AGE-NC Project No 01-0827 <br />' Page 2 of 5 <br />' 22 SOIL SAMPLING <br /> A metric soil sampler was used to collect soil samples either directly from the sidewalls of the <br /> excavation at five-foot vertical Intervals utilizing a 20-foot extension or from soil collected in the <br /> bucket of the excavator at five-foot vertical intervals Soil samples were collected in a 6-Inch Iong <br /> by 2-inch diameter brass sleeve attached to the end of the metric soil sampling hammer The exposed <br /> ends of the sample sleeve were covered with Teflon sheets, capped and sealed with tape <br /> Following sample collection, each sample sleeve was labeled with the boring location,depth,time, <br /> I date and sampler's Initials Appropriately sealed and labeled samples were placed in a chilled <br /> container under ice and transported under chain-of-custody procedure to a state-certified laboratory <br /> ISoil samples were not collected from the stockpiles <br /> 23 ANALYTICAL PROTOCOL <br /> The excavation and stockpiled soil samples were analyzed for the following constituents <br /> Total petroleum hydrocarbons as diesel and motor oil (TPH-d and TPH-mo) in accordance <br /> with EPA Method 8015 Modified and <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX) in accordance with EPA <br /> Method 8021 <br /> 2 4 EXCAVATION BACKFILLING AND SOIL DISPOSAL <br /> After completion of all excavation and sampling activities, the excavation was backfilled and <br /> compacted to the top of the water table with approximate1y400 cubic yards of 314-inch gravel, and <br /> then backfilled and compacted to surface grade with clean fill's`an� <br /> On 11 and 12 September 2002, approximate) 660 metric tons of excavated soil as transported <br /> from the site and disposed at Forward Landfill The mane ests wi weig t master certificates are <br /> attached in Appendix B <br /> 3.0. FINDINGS <br /> Soil description and depth to ground water was determined from field data collected on 11 and <br /> 13 September 2002 The Impact of the unauthorized petroleum hydrocarbon release on soil was <br /> Advanced GeoEnvironmental,Inc <br />