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F <br /> sampling, latex gloves will be worn to prevent cross <br /> contamination <br /> dedicated to each . One pair of sample disposable <br /> g sample collected <br /> Once the sample is collected, each end of the cylinder will a <br /> be sealed with aluminum foil or teflon tape and then pp <br /> ed <br /> with a polyethylene lid, taped, and labeled. The sample <br /> will then be individually sealed in a ziplock bag and <br /> immediately placed in an ice chest containing dry ice or <br /> frozen chemical ice for del;very to a ststora certified <br /> tifand <br /> laboratory. Sample identification, g <br /> transportation will be conducted as outlined in the previous <br /> section. <br /> 11.3 Sampling from Soil Piles or S) low Soil Pits <br /> soil samples hili be collected and transported from <br /> excavated material in the manner described in the previous <br /> section, however, a backhoe will not be utilized. if <br /> composite samples are collected, four brass cylinders will <br /> be collected for every 50 cubic yards of material to be <br /> sampled unless otherwise specified by the lead regulatory state <br /> agency. The samples will be composited by <br /> thecertified analytical laboratory personnel prior to testing. <br /> 12,0 Groundwater Sampling Protocol <br /> Prior to arriving at the sampling site, all sampling <br /> equipment will be washed with laboratory grade detergent, <br /> and rinsed twice with tap water, once with acetone, and once <br /> with deionized water. This procedure will be carried out <br /> on-site <br /> be <br /> fore is pn be f other sampled with monitoring <br /> wells, <br /> thanone well to <br /> same sampling <br /> device. <br /> Immediately prior to sampling, the depth to water (DTW) in <br /> the well will be recorded. The thickness of product on top <br /> of the groundwater, if present, will be measured using an <br /> interface <br /> (Groundwater procedure <br /> Monitoring Protocol)- <br /> s is presented <br /> ) <br /> If free product is detected, analysis of groundwater at the <br /> interface for dissolved product will not be conducted. A <br /> product sample will be collected for source identification. <br /> if all free product cannot be removed, an interval specific <br /> sampling device may be utilized to collact a sample from <br /> below the zone of free product- Before collecting swill abs <br /> st <br /> two groundwater samples from each well, <br /> the purged until indicator parameters (temperature, conductivity <br /> and pH) stabilize. This will entail the removal of at lease <br /> ast <br /> four well casing volumes by bailing or pumping. <br /> criteria for determining well casing volumes and temporary <br /> storage of purged water is outlined in Section 10.0, (Well <br /> i,evelopment Protocol). The indicator parameter measurements <br /> will be taken both before, and after purging of each well <br />