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} <br /> r� <br /> Aak <br /> qW 'q KLEINFELDER <br /> A-2 4 Sample Handling <br /> After labeling, the sample is immediately stored in an iced cooler for transport to <br /> Kleinfelder's office sample control or to the analytical laboratory. A Kleinfelder chain-of- <br /> custody form accompanies the cooler The chain-of-custody form includes Kleinfelder's <br /> name, address and telephone number, the employee number of the individual who <br /> performed the sampling, the sample numbers, the date and time the samples were <br /> collected, the number of containers each sample occupies, and the analyses for which the <br /> samples are being submitted, if any The chain-of-custody form is signed by each person <br /> who handles the samples, including all Kleinfelder employees and the receiving employee <br /> of office sample control or the analytical laboratory when the samples are delivered <br /> A-2.5 Decontamination of Equipment <br /> To reduce the potential for cross-contamination, augers and associated equipment are <br /> steam cleaned prior to drilling each boring In addition, sampling equipment is cleaned <br /> with trisodium-phosphate wash and rinsed with distilled water prior to collecting each soil <br /> sample <br /> A-2 d Soil Cutting Disposal <br /> Drill cuttings will be placed in 55-gallon drums or wrapped in plastic and left on site for <br /> disposal by the site owner If requested, Kleinfelder can coordinate disposal of soil after <br /> analytical results are available. <br /> . 1-2 7 Soil Boring Closure <br /> Upon completion of drilling and sampling, soil borings will be closed by backfilling with a <br /> cement/bentonite grout <br /> 1 <br /> ,. <br /> FR25-91-22 Page A-2 <br />