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Q <br />Q <br />sampling, latex gloves will be worn to prevent cross <br />contamination with other samples. One pair of disposable <br />gloves will be dedicated to each sample collected. <br />Once the sample is collected, each end of the cylinder will <br />be sealed with aluminum foil or teflon tape and then capped <br />with a polyethylene lid, taped, and labeled. The sample <br />will then be individually sealed in a ziplock bag and <br />immediately placed An an ice chest containing dry ice or <br />frozen chemical ice for delivery to a state certified <br />laboratory. Sample identification, storage and <br />transportation will be conducted as outlined in the previous <br />section. <br />11.3 Sampling from Soil Piles or Shallow Soil Pits <br />Soil samples will 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 <br />agency. The samples 'will be composited by the state <br />certified 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 before sampling of other monitoring wells, if more <br />than one well is to be sampled with the 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 probe. The procedure for monitoring is presented <br />in Section 9.0 (Groundwater Monitoring Protocol). <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 collect a sample from <br />below the zone of free product. Before collecting at least <br />two groundwater samples from each well, the well will be <br />purged until indicator parameters (temperature, conductivity <br />and pH) stabilize. This will entail the removal of at least <br />four well casing volumes by bailing or pumping. The <br />criteria for determining well casing volumes and temporary <br />storage of purged water is outlined in Section 10.0, (Well <br />Development Protocol). The indicator parameter measurements <br />will be taken both before and after purging of each well <br />