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kn 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 /> B-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 Klemfelder chain-o#-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 /> B-2.7 Decontamination of Equipment <br /> ' To reduce the potential for cross-contamination, augers and associated equipment are steam <br /> cleaned prior to drilling each boring In addition, sampling equipment is cleaned with a <br /> t trisodium phosphate or non-phosphate detergent wash and rinsed with distilled water prior to <br /> collecting each soil sample <br /> B-2 8 Soil Boring Closure and Cutting Disposal <br /> Soil bonngs 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 /> i <br /> B-3 GROUNDWATER WELL INSTALLATION <br /> ' B-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 <br /> pipe <br /> ' • The wells are constructed in 8- or 10-inch diameter borings <br /> g <br /> ' • Well screen sections are perforated with 0 010- or 0 020-inch factory-cut slots <br /> 1 <br /> 28699 E0! /ST03R759 Page B-3 <br /> ' Copyright 2003,Kleinfelder,Inc May 20,2003 <br />