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f r <br /> u <br /> 1 ` <br />' 27 May 2004- <br /> AGE-NC-Project No 96-0254 <br /> Page 2 of 6 <br />' segregated into impacted soil and clean soil Only soil exhibiting hydrocarbon odor or measurable <br /> OVM readings was stockpiled for final disposal, the clean�soil was used to backfill the excavation ' <br /> Approximately 340 cubic yards (486 tons) of impacted soil was excavated from the former UST <br /> Cluster area as part of remedial action at the site In addition,approiimately 260 cubic yards of clean `T <br /> overburden was removed from the excavation The clean overburden was sampled, analyzed and <br /> utilized as backfill material Figure 3 illustrates the approximate location and lateral extent of the <br />' excavation <br />' 2 3 ' EXCAVATION SOIL SAMPLE COLLECTION AND ANALYSIS <br /> Soil samples were collected from the floor and sidewalls of the excavation by AGE personnel <br />' Excavation samples were collected from the excavation bucket using a metric soil sampling hammer <br /> loaded with brass sleeves Soil sample locations are illustrated on Figure 3 <br />' Additionally, 20 individual soil samples were collected from the soil stockpile The samples were <br /> shipped to CTEL and subsequently composrted and analyzed Additionally, soil stockpile samples <br /> • SP-01, 05, 09, 13 and 17 were in individually analyzed <br /> he exposed ends of the sample sleeve were covered with Teflon sheets <br /> Upon collection,t p p capped and <br />' sealed with tape Each sample sleeve was properly labeled, placed in a chilled container under ice <br /> and subsequently transported under chain-of-custody procedure to Cal Tech Environmental <br /> Laboratory(CTEL),a State of California Department of Health Services(DHS)-certified laboratory <br />' Soil samples were analyzed for the following constituents ` <br /> • Total petroleum hydrocarbons as gasoline(TPH-g)and as diesel(TPH-d)in accordance with <br /> EPA Method 8015 Modified, <br /> 1 • <br /> Benzene, toluene, ethylbenzene and total xylenes (BTEX)in accordance with EPA Method <br /> 8260B, <br />' Fuel additives methyl,tertiary-butyl ether(MTBE),tertiary-butal alcohol(TBA),di-isopropyl <br /> -ether (DIPE), ethyl tertiary-butyl ether (ETBE) and tertiary-amyl methyl ether (TAME) in Y <br /> accordance with EPA Method 8260B <br /> I <br /> In addition, select soil samples were analyzed for <br /> 1,2-dibromoethane (EDB) and 1,2-dichloroethane (1,2-DCA) in accordance with EPA <br /> Method 8260B, and , <br />' Total lead by EPA Method 6010B <br /> , <br /> Advanced GeoEnviron mental,Inc <br /> o <br />