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KLE/NFELDER <br /> ' mymrtopr..eghl.1..- <br /> A-2.5 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 is attached to 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 <br /> the samples are being submitted, if any. The chain-of-custody form is signed by each <br /> ' person who handles the samples, including all Kleinfelder employees and the receiving <br /> employee of the analytical laboratory when the samples are delivered. An example of <br /> the chain-of-custody form is attached to this appendix. <br /> A-2.6 Soil Sample Selection for Laboratory Analysis <br /> The selection of soil samples for laboratory analysis is based upon: 1) the project <br /> objectives and requirements, 2) qualitative field screening performed in the field using <br /> the organic vapor detector, and 3) field observations such as lithology, odor, <br /> discoloration, or high moisture content. Generally, samples are submitted from the <br /> bottom of the boring and from soil horizons with significant potential for contamination <br /> as indicated by the organic vapor detector, observations, and site history. Samples may <br /> be collected from regular intervals when information on concentrations versus depth is <br /> desired. Samples that are not selected for laboratory analysis are held in sample <br /> control for possible future reference. When these samples are no longer needed, they <br /> are returned to the site and are combined with the soil cuttings generated during their <br /> collection. <br /> A-2.7 Soil Boring Closure and Soil Cutting Disposal <br /> ' Soil borings are closed immediately after the collection and logging of soil samples. <br /> Closure is accomplished by grouting the boring with a cement/bentonite slurry or as <br /> otherwise required. <br /> t <br /> 1 <br /> 101486.4/STO11 R242 Page A-3 October 31, 2011 <br /> Copyright 2011 Kleinfelder <br />