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FIELD PROCEDURES <br /> Site Safety Plan <br /> This plan describes the safety requirements for field work performed at the site. The site <br /> safety plan is applicable to personnel of Canonie/Smith Environmental Technologies <br /> Corporation (SMTH) who perform the field work. A copy of the site safety plan is available <br /> for reference by appropriate parties during the work. The onsite representative of SMTH acts <br /> as the Site Safety Officer. <br /> Drilling Methods <br /> Before drilling begins, SMTH notifies Underground Service Alert so that approximate <br /> locations of underground utility lines and structures can be marked. The soil borings are <br /> started by .hand-angering or probing to a depth of 3 to 5 feet to minimize the possibility of <br /> damaging underground utilities. <br /> Borings are drilled with a CME 55 or similar drill rig equipped with continuous-flight, hollow- <br /> stem augers.. The augers are steam-cleaned before use in each boring to minimize cross- <br /> contamination of the borings. The drill cuttings are stored in Department of Transportation <br /> (DOT) 55-gallon drums or stockpiled onsite and covered with plastic pending disposal at an <br /> appropriate disposal facility. <br /> Soil Sampling in Borings <br /> Soil samples for analysis and identification are collected at approximately 5-foot intervals from <br /> the.borings during drilling. Soil samples are collected by advancing the boring to a point just <br /> above the sampling depth and then driving a California-modified, split-spoon sampler <br /> containing clean brass sleeves through`the hollow center of the auger into the soff. The <br /> sampler is driven 18 inches with a standard 140-pound hammer repeatedly dropped 30 inches. <br /> The number of blows needed to drive the sampler- each successive 6 inches is counted and <br /> recorded to evaluate the relative consistency of the soil. Sampling equipment is cleaned <br /> between each use with an industrial non-phosphate soap and clean tap water. <br /> Soil Sample Labeling and Handling <br /> The soil samples selected for possible laboratory analysis are removed from the sampler and <br /> quickly sealed in their brass sleeves with Teflon tape and plastic caps. The respective sample <br /> containers are labeled in the field with the job number, sample location and depth, and date, <br /> and promptly placed in iced storage for transport to the laboratory. Chain of Custody Records <br /> are initiated in the field by the technician and accompany the samples to a laboratory certified <br /> by the State of California to perform the requested analyses. <br /> SHELLS\FLDMTHDS.doc 1 <br /> • <br /> SWFN <br />