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sampling, latex gloves will� be .turn to prevent cross <br /> contaminaten with other samples. One pair of disposable <br /> gloves gall be dedicated to each sample collected. <br /> Once the sample Is collected, each end of the Cylinder will <br /> sealed +�zth aluminum foil or teflon tape and then capped <br /> �r� th a polyethylene lid, taped, and labeled. The sample <br /> X111 then be ind, vaduaily sealed in a zaplock bag and <br /> immediately placed xn an ice chest containing dry ice or <br /> frozen chemical ice for delivery to a state certified <br /> laboratory. Sample identification, <br /> transportation will be conducted as out <br /> section. ntorthegprevlous <br /> 11 .3 Sampling from soil Piles or Shallow Soll Pits <br /> S011 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 laooratory 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 <br /> and rinsed twice with tap water, once with acetone, andoncewith delonazed water. This procedure will be carried out <br /> on-site before sampling of other monitoring wells, if more <br /> than one well as 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 /> 1n Section 9.0 (Groundwater Monitoring Protocol) . <br /> If free product as 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 1s 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 />