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MCIl <br /> ON <br /> OR <br /> Mt <br /> 3 <br /> will be filled with a cement grout, using direct displace- <br /> ment and/or a tremie pipe as needed. The surface will be <br /> completed using a protective box, cemented in place, with a <br /> removable cover. The well pipe will be capped with a locking <br /> cap for protection on top and a blank cap on bottom. <br /> all cuttings will be described <br /> During drilling operations, <br /> by a registered geologist. Samples will be taken every 5 ' , <br /> commencing at 15' below ground level , just below the <br /> current pit bottom, using a 2' split spoon sampler with 2" X <br /> 4" (or similar) brass collection tubes. The exact length of <br /> the specimens will be dependent upon the equipment of the <br /> driller selected. The soil samples will be examined and <br /> described, the brass sleeves capped with foil and plastic <br /> end caps, sealed with tape, labeled, and placed in an ice <br /> chest for transportation to a certified testing laboratory. <br /> Chainfield <br /> -of-custody forms will be utilized for the work <br /> and a copy of the laboratory quality assurance/quality <br /> r control manual will be supplied with the results. <br /> All borehole equipment that is reused in the boring of the <br /> three monitoring wells will be cleaned between uses with a <br /> three step wash and rinse process using TSP or a similar <br /> industrial cleaner. <br /> At a convenient time after the wells are installed, water <br /> f levels will be located using an electric probe type water <br /> and product level locater. The wells will be completed by <br /> t least 5 casing volumes of the water column <br /> bailing aappropriate <br /> calculated to be standing in the well, using an app p <br /> size PVC bailer with a Teflon or similar ball and seat. When <br /> water levels have recovered about 3/4 of the previously <br /> recorded level, bailer samples will be taken for testing. <br /> bY <br /> All samples will be collected in sterile jars Supp <br /> lied the testing lab; the samples will be placed in an ice chest <br /> for transportation to the lab. Chain-of-custody and quality <br /> ed assurance procedures will be. followed as descriy bbothoblanks <br /> The laboratory used will be instructed to Supp y <br /> = Y �' and containers for duplicate samples if needed. The methods <br /> ` uJ. sed for spike testing and equipment calibration will be de <br /> x <br /> scribed in the laboratory manual . The bailer will be washed <br /> as described above between uses. <br /> - - -- -Al 1--samples,--both-soil-and-water,_ will be testza for ETEX <br /> and TPH-G. The laboratory will be instructed to use ---- <br /> ------ - - <br /> b minimum standards. and .EFAlDFiS testing methods as recommended <br /> in the Tri-Regional Board Staff Report of 10 August 1990, 4 <br /> pages 17 and 16 (attached) . <br /> The County EHI�, and the RRif <br /> if necessarywill' be notified <br /> of all operations in time to witness them f desired. <br /> t 3 <br />