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T & T EARTH ,, ,"RVICES <br /> yrIT . <br /> � yc <br /> Tom Hunt Tim Smith <br /> P.O. Box 1121 P.O. Box 1618 <br /> Jackson, CA 95642 Sutter Creek, CA 95685 <br /> T (209) 223-2811 (209) 267-0903 <br /> ' <br /> NN <br /> Fhr May b, 1992 <br /> LES CALKINS SITE <br /> U.S.T. PIT SITE INVESTIGATION PLAN <br /> This operative plan is submitted by T & T Earth Services a <br /> partnership between Hunt Drilling Inc . and TK5 Consulting Ltd. <br /> The following is a phased approach to a site investigation <br /> at the Les Calkins Trucking Yard at 19501 N. Hwy 99 in Acampo , <br /> California. The site is being investigated as a result of <br /> unauthorized attempts at bioremediation of leakage on overfill <br /> contamination of diesel from two 10000 gallon tanks at the site. <br /> The tanks have been removed from the site and the pit shows <br /> Wisible hydrocarbon stains on the floor and side walls. <br /> Additionally there is a pile of spoils an the site, from the pit , <br /> which have also had unauthorized 'inoculations of bacteria for <br /> remediation. <br /> PHASE I SITE BACKGROUND <br /> Complete historic study of the site and adjacent parcels to <br /> include past ownership and uses, County underground tack permits <br /> and motor fuel use levels. <br /> This phase will also include a qualitative look at the <br /> ground water development in the immediate area. This will <br /> encompass qualitative sampling of the three wells on the site, <br /> ground water gradient estimations from existing studies and <br /> comparisons of water levels from existing nearby wells and well <br /> logs if available. <br /> PHASE II SOIL AND SPOILS SAMPLING <br /> Completion of 4 sail borings at the tank pit . One boring <br /> will be made at the up gradient end of the tank pit (probably <br /> near the tank fill at the south end ) . 2 borings at the down <br /> gradient corners of the pit and one soil boring in the middle of <br /> the tank pit . Sampling will be done with a I .R. A-200 hollow stem <br /> auger drill using an auger and a split spoon sampler . Samples <br /> will be taken in native material 2 feet below the tank pit <br /> bottom. <br /> In addition 3 spoils pile samples will be taken. These will <br /> be taken from 3 feet into the spoils pile at even spacing around <br /> the pit . <br /> All sampling will be done according to L.U.F.T . guidelines. <br /> Samples will be analyzed by a CAL EPA certified lab (Chemwest in <br /> Sacramento ) for TPH-D (modified B015 method ) . <br />