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L _ LYY� jl : llril9 GREGG DRILLING <br /> 9253130302 p.i <br /> L ' <br /> GREGG IN SITU, INC. <br /> Ln1 i and En%lronmental In Sint T"ting Contractors <br /> L <br /> SOIL SAMPLING <br /> A piston type soil sampler 19 used to collect <br /> L ►8fatl"ly undisturbed soil samples without <br /> generating any soil Cuttings. TWO size pis- <br /> ton type eam piers are used, 12 Inch and 18 <br /> Inch, depending.on the da'nsify of the soil <br /> L aril the amount of sample required for <br /> =` h. analysis. <br /> The sod sampler is initially <br /> L <br /> closed pushed in the <br /> position to the desired sampling in- <br /> terval. -The push -rods-am then retreated, <br /> L approximateiy 12.1nches or 16 ktches ( de- <br /> pending on the length of the sampler), <br /> Which also retracts the lnner rod and tip of <br /> the soil sampler. The sampler is then <br /> Lpushed In a 'open' or "locked" position to <br /> Collect a soil sample. After the simple is " <br /> has been collected, the sampler and the <br /> L push rods are withdrawn-from the test hole <br /> Into .to the CPT truck The sample rings <br /> (two 1.25 inch diameter by 6 inch long or <br /> L four 3 Inch long for the 12 inch sampler and <br /> two 1.6 inch diameter by S Inch long for the <br /> 18 inch sampler) are then removed from <br /> the. sampler and sealed with Teflon and <br /> IIS caps. The sampler is then deoon- <br /> tominated and ready to deploy to. collect <br /> another sample. <br /> L <br /> L <br /> L <br /> I'm Ames(wWw")•San i`ranclsco•Holston•Chadston <br /> Vancouver-Sait take City•New Jersey <br /> LTal:(6e2)427-8898-Fax(1362)421.2928•Websh:www:prnpgdr"V tan <br /> L <br /> L <br />