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' kn KLEINFELDER <br /> alcohol followed by a distilled water rinse prior to use New, factory-sterilized syringe needles, <br /> 0-rings, septums and sample tubes are used for each sample <br /> ' A-2 b Sample_Handling <br /> ' After labeling, the sample is immediately stored in an aced cooler for transport to KIeanfelder'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 Kleanfelder 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, augers and associated equipment are steam <br /> cleaned prior to drilling each boring In addition, sampling equipment is cleaned with a <br /> trisodaum phosphate or non-phosphate detergent wash and rinsed with distilled water prior to <br /> collecting each soil sample <br /> A-2.8 Soil Boring 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 boamg <br />' and left on site for disposal by the site owner if requested, Kleanfelder can coordinate disposal <br /> of soil and water after analytical results are available <br /> A-3 GROUNDWATER WELL INSTALLATION <br /> A-3.1 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 /> g Y <br /> -8?09 TO3/ST04R15.7 Page A 3 <br /> 11104 K'e,nfelder, enc Februar% 3 2004 <br />