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soil sample for every 10 soil samples collected; one duplicate groundwater sample for <br /> every 10 groundwater samples collected). Specific locations will be designated for <br /> collection of duplicate samples prior to the beginning of sample collection. <br /> The duplicate samples will be collected at the same locations as the corresponding <br /> primary samples and will be collected simultaneously or in immediate succession, using <br /> identical recovery techniques. Duplicate samples will be treated in an identical manner as <br /> the primary samples during storage,transportation, and analysis. <br /> Duplicate samples will be designated the same as the primary sample with the addition of <br /> DUP following the primary designation. <br /> 3.3.2.2 Trip Blanks <br /> Trip blanks will be maintained with sample containers at all times during the sampling <br /> event and at least one trip blank will be submitted to the laboratory with each shipped <br /> cooler. The trip blanks will consists of VOC sample vials filled in the laboratory with <br /> ASTM Type II reagent-grade water, transported to the sampling site, and handled like an <br /> environmental sample. Trip blanks will be analyzed for TPH-g by USEPA Method 8015 <br /> and gasoline range VOCs by USEPA Method 8260B. Trip Blanks will be designated as <br /> follows: <br /> TBA <br /> where: TB =Trip Blank <br /> X= Sequential sample number(i.e. 1,2,3...) <br /> 3.3.3 Sample Custody <br /> Sample containers will be labeled, before or immediately after the time of sampling, as <br /> follows: <br /> • Project name <br /> • Sampling date and time <br /> • Sample identification number <br /> • Sampler's name <br /> During sampling, the appropriate sample containers will be selected, and the appropriate <br /> sample number will be recorded in the field sampling data forms. <br /> At the end of each sampling day and before samples are transferred off site, <br /> Sampling and Analysis Plan-Final 5/18/2012 <br /> 3-5 <br />