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decontaminated driving device. No head space will be present in the cylinder once the sample <br /> is collected. Care will be taken to avoid contamination of both the inside and outside of the <br /> cylinder as well as its contents. During sampling, latex gloves will be worn to prevent cross <br /> contamination with other samples. One pair of diposable gloves will be dedicated to each <br /> sample collected. <br /> Once the sample is collected, each end of the cylinder will be sealed with aluminum foil or <br /> teflon tape and then capped with a polyethylene lid, taped, and labeled. The sample will then <br /> be individually sealed in a ziplock bag and immediately placed in an ice chest containing dry ice <br /> or frozen chemical ice for delivery to a state certified laboratory. Sample identification, storage <br /> and transportation will be conducted as outlined in the previous section. <br /> 11.3 SAMPLING FROM SOIL PILES OR SHALLOW SOIL PITS <br /> Soil samples will be collected and transported from excavated material in the manner described <br /> in the previous section, however, a backhoe will not be utilized. If composite samples are <br /> collected, four brass cylinders will be collected for every 50 cubic yards of material to be <br /> samples unless otherwise specified by the lead regulatory agency. The samples will be <br /> composited by the state certified analytical laboratory personnel prior to testing. <br /> 12.0 GROUNDWATER SAMPLING PROTOCOL <br /> Prior to arriving at the sampling site, all sampling equipment will be washed with laboratory <br /> grade detergent, and rinsed twice with tap water, and once with deionized water. This <br /> procedure will be carried out on-site before sampling of other monitoring wells, if more than <br /> one well is to be sampled with the same sampling device. <br /> Immediately prior to sampling, the depth to water (DTW) in the well will be recorded. The <br /> thickness of free phase LNAPL on top of the groundwater, if present, will be measured using <br /> an interface probe. The procedure of monitoring is presented in Section 9.0 (Groundwater <br /> Monitoring Protocol). <br /> If free LNAPL is detected, analysis of groundwater at the interface for dissolve product will not <br /> be conducted. A product sample will be collected for source identification, as needed. If free <br /> product cannot be removed, an interval specific sampling device may be utilized to collect a <br /> sample from below the zone of free product. <br /> Before collecting groundwater sample from a well, the well will be purged until indicator <br /> parameters (temperature, conductivity and pH) stabilize. This will entail the removal of at least <br /> three well casing volumes. Temporary storage of purged water is outlined in Section 10.0, <br /> (Well Development Protocol). The indicator parameter measurements will be taken both before <br /> and after purging of each well casing volume. Once the well is purged and indicator parameters <br /> have stabilized, a sample will be collected after the water level approaches 80 percent of its <br /> 7 <br />