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i N j iI0'v 14:41 TFLSTPR EPG. Iru: 805-�27-3283P.a. i 'I APPRNDJX t. SAMPLE COLLECTION AND TRANSPORT I A. Sample Collection 1. Field Notebook The field investigator ator should }c2ep a field notebook, (preferably bound with pages numbered) to record sample collection procedures, dates, laboratory identification, sample collection location, and the name of the sampler. This is important: for later recall or legal, challenge. 2. Soil Samples a. Hydrocarbons: Soil sam les �colle p cte d from backhoe, the m a ground or a soil coxing device, should be collected in a thin-walled stainless steel or brass Cylinder at least three inches long by one inch in diameter thatthas been prepared by , the laboratory doing the analysis or the project consultant (cylinders can bermade to fit inside the preferred split-barrel core sampler) . About i one inch of soil should be removed from the immediate surface area whexe� the sample is to be s taken and the cylinder then pounded into the soil with a wooden mallet. No headspace should be present in the cylinder once!ithe sample is collected. When the sample is Collected, each end, of the cylinder should be covered with aluminum foil and then capped with a polyethylene lid, taped, and labeled. The sample should then be immediately placed in an icel'ichest contain-,ng dry 6 ice and kept cold (4 'C ') for',';delivery to the laboratory, Cara should be taken throughos..t to avoid contamination of both the inside and outside of the cylinder and its contents (Z) . Sample homogenization should ;not he performed on samples intended for volatile and semivolatile organic analysis since the mechanical action of mixing exposes 'a larger surface area of the contaminated soils and other, ',;solids in the samples ' to the air, thus increasing the total amount of volatilization. Al2 i SII