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KL E/NFEL OER <br /> Blight Pe ple Right Solutions. <br /> Stainless steel bailers, ball valves and other down-hole re-useable equipment are <br /> decontaminated prior to use at each sampling location by stream cleaning or scrubbing <br /> in a non-phosphate detergent wash followed by a distilled water rinse. <br /> 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, the sample matrix (soil or <br /> water), and the analyses for which the samples are being submitted, if any. The chain- <br /> of-custody form is signed by each person who handles the samples, including all <br /> Kleinfelder employees and the receiving employee of office sample control or the <br /> analytical laboratory when the samples are delivered. <br /> 2.5 Decontamination of Equipment <br /> To reduce the potential for cross-contamination, core barrels and associated down-hole <br /> equipment are steam cleaned prior to advancing each probe. In addition, sampling <br /> equipment is cleaned with a non-phosphate detergent wash and rinsed with distilled <br /> water prior to collecting each soil or groundwater sample. <br /> 2.6 Geoprobe Closure <br /> Upon completion of sampling, the boreholes are closed by backfilling the borings with a <br /> neat cement grout or bentonite chips or powder. <br /> Probe cuttings and water not retained for additional analyses are placed in plastic bags, <br /> 55-gallon drums, or spread around the boring, depending upon site specific conditions. <br /> It is typically the Site owner's responsibility to dispose of cuttings and water left <br /> contained on the Site. Kleinfelder can coordinate disposal of soil and water after <br /> analytical results are available. <br /> 112884.1/STO10R366R Page iii of iii October 1, 2010 <br /> Copyright 2010 Kleinfelder Revision 1, dated November 22,2010 <br />