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k4 KLEINFELDER <br /> alcohol followed by a distilled water nnse prior to use New, factory-sterilized syringe needles, <br /> 0-rings, septums and sample tubes are used for each sample <br /> A-2.6 Sample Handlin <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 /> A-2.7 Decontamination of Equipment <br /> To reduce the potential for cross-contamination, ui augers and associated equipment are steam <br /> g q p <br /> cleaned prior to drilling each boring In addition, sampling equipment is cleaned with a <br /> trisodium phosphate or non-phosphate detergent wash and rinsed with distilled water prior to <br /> collecting each soil sample <br /> A-2 8 Soil Borinp_ Closure and„Cutting Disposal <br /> Soil borings are closed immediately after the collection and logging of soil samples Closure is <br />' accomplished by grouting the boring with a cement/bentonite slurry or as otherwise required <br />' Drill cuttings will be placed in 55-gallon drums wrapped in plastic or spread around the boring <br /> and left on site for disposal by the site owner If requested, Kleinfelder can coordinate disposal <br /> of soil and water after analytical results are available <br /> A-3 GROUNDWATER WELL INSTALLATION <br /> A-3 I Monitoring Well Construction <br /> Construction details for shallow groundwater monitoring wells are as follows <br />' • The well casing are 2- or 4-inch inside diameter, flush threaded joint, schedule 40 PVC pipe <br />' • The wells are constructed in 8- or 10-inch diameter borings <br /> • Well screen sections are perforated with 0 010- or 0 020-inch factory-cut slots <br /> • The wells are generally screened from 5 feet above to 15 feet below first groundwater <br /> 28209 T03/ST03RI312 Page A-3 <br />' ©2003 Kleinfelder, Inc September 22, 2003 <br />