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GROUNDWATER TECHNOLOGY � STANDARD OPERATING PROCEDLhtE CONCERNING SOIL SAMPLING iODOLOGY SDP 14 Soil samples should be collected and preserved in 4 accordance with Groundwater Technology Laboratory's Standard Operating Procedure (GTL SOP 15) concerning Soil Sample Collection and Handling when Sampling for Volatile organics. A hollow stem soil auger should be used to drill to- the desired sampling depth. A standard 2 inch diameter split spoon sampler 18 inches in length shall be used to collect the samplers. The samples are contabraassined tubein 2 linerscfitted eter into the split6 inch lspoonin ed Sampler -� brass (three per sampler) . The split spoon sampler should be driven the full depth of the spoon into the soil using a 140 pound hammer. The spoon shall then be extracted from the borehole and the brass tube liners containing the soil sample removed from the sampler. The ends of the liner tubes should be immediately covered with aluminum foil, sealed with a teflon or plastic cap, and then taped with duct tape. After being properly identified with sample data entered on a standard chain of custody form the samples shall be placed on dry ice (maintained below 4 C) and transported to the laboratnry within one of the three soil samples retreived at eachsa=ple - depth shall be analyzed in the field using u poionithe nation detector and/or explosimeter. The purpose oose samples field analysis is to provide a mdrocrbanhconcentrations } to be laboratory analyzed for bya and to enable comparisions between the field and laboratory analyses. The soil sample shall be sealed in a plastic bag and placed in the sun to accelerate the vaporization of volatile hydrocarbons from the soil, one of the two field vapor instruments shall be used to quantify the amount of hydrocarbon released to the air from the soils. The data shalbe recorded on the drill logs at the depth correspondingto the sample p � I J6 GROI\mk afER EE!3 TEcK\0u)c% l"c