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GnotlNt3s M7rn 'rPCf1r10LOGY <br /> STANDARD OPERATING PROCEDURE <br /> CONCERNING SOIL SAMPLING METAOUOLOGX <br /> SOP 14 <br /> Sohl samples should be collected and preserved it, <br /> accordance with Groundwater Technology Laboratory's <br /> Standard Operating Procedure (GTL SOP 15 ) concerning <br /> Soil Sample Collection and handling when Sampling for <br /> volatile Organics. A hollow stem soil auger shacld be <br /> used to dri11 to the desired sampling depth. A Standard <br /> 2 i.ncls diameter split spoon sampler, 10 niches in length <br /> shall be used to collect the samples. The samples are <br /> contained ill 2 Inch diameter by F inch 10119 than walled <br /> brass tube linerstltted into the split spoon sampler <br /> (three'per sampler) . <br /> The split spoon sampler should be driven the Full depth <br /> of the spoon into the soil using a 190 pound hammer. <br /> 'floe spoon shall then be extracted from the borehole and <br /> the brass tube liners containing the soil. sample removed <br /> from the sampler. ll ends of the liner tubes ='could be <br /> immediately covered with aluminum foil, sealer] with a <br /> 1•.eflon or plastic cap, and then taped with duct tape. <br /> After being properly identified with sample data entered <br /> on a standard chain of custody form the samples shall be' <br /> placed on dr_y ice (maintained below 4°C) and transported <br /> to the laboratory within 24 hours. <br /> Ogle of the three soil samples retreived at each sample <br /> depth shall be analyzed its the field using a photoioni- <br /> ra.tion detector and/or exr.losimeter. The purpose of the <br /> field analysis is to provide a means to choose samples <br /> to be laboratory analyzed for hydrocarbon concentrations <br /> and to enable comparisions between the field and <br /> laboratory analyses. The soil sample shall be sealed in <br /> a plastic bag and placed in the suit to acre".eraLethesoil- One <br /> vaporization of volatile hyilrocaxboiis f <br /> i01 <br /> n the <br /> of the two field vapor instruments shall be used to <br /> hydrocarbon released to the air <br /> quantify the amount of <br /> front the soils. The data shall be recorded on the drill <br /> logs at the 4epth corresponding to the sample point. <br /> I IGROUNI)W/M11 <br /> l�w fSL 'I'L;CI INOLOGY,INC. <br /> CONSUL IING GAOUNDWATEn GEOLOGISIS <br />