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i' <br /> f <br /> h" KLFINFFLDI_ R <br /> p <br /> h <br /> soil. The sample tubes will be removed and sealed with Teflon and plastic caps. Groundwater <br /> samples,will be collected from the Geoprobe hole using a decontaminated bailer or a peristaltic <br /> pump with new tubing, depending on field conditions. <br /> B-2.5 Decontamination of Equipment <br /> i <br /> To reduce the potential for cross-contamination, Geoprobe pipe and associated equipment are <br /> steam cleaned prior to advancing each boring. In addition, sampling equipment is cleaned with a <br /> trisodium-phosphate wash and rinsed with distilled water prior to collecting each soil sample. <br /> B-2.6 Soil Cutting Disposal <br /> I <br /> A minimal amount of soil is generated from a Geoprobe:,boring. Excess soil from the probe <br /> advancement and sampling will be placed in a heavy plastic bag and left near the respective <br /> probe locations. <br /> i' <br /> B-2.7 Geoprobe Closure <br /> Upon completion of Geoprobe sampling, the borings will be closed by backfilling the borings <br /> with a neat cement grout, or bentonite chips or powder. <br /> f � <br /> k <br /> B-2.8 Sample Handling <br /> After labeling, the sample is immediately stored in an iced cooler for transport:to Kleinfelder's <br /> office sample control or to the analytical laboratory. A Kleinfelder chain-of-custody form <br /> accompanies the cooler. The chain-of-custody form includes Kleinfelder's name, address and <br /> telephone number, the employee number of the individual who performed the sampling, the <br /> sample:numbers, the date and time the samples were collected, the number of containers each <br /> sample occupies, the sample matrix (soil or water) and the analyses for which the samples are <br /> being submitted, if any. The chain-of-custody form is signed by each person who handles the <br /> samples, including all Kleinfelder employees and the receiving employee of office sample <br /> control or the analytical laboratory when the samples are delivered. <br /> 3, <br /> j1 <br /> r <br /> T <br /> �7 <br /> l ry <br /> ' U <br /> 20-YPO-104/20008311 Page B-2 <br /> Copyright 2000 Kleinfelder,Inc. March 28,2000 <br /> t <br /> t <br />