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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 /> e <br /> Once the sample Is collected, each end of the cylinder will <br /> ' be sealed with aluminum foil or teflon tape and then ca <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 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 arrivingat <br /> 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 delonlzed 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 />