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Roger Ferry =� <br /> Page 2 <br /> u <br /> ii <br /> Also discussed was the contamination noted in samples taken along the.piping trenches from the original <br /> tank pull in 1990. 1t was agreed that those areas will need to be'addressed in future work. <br /> Also, for future soil sampling, samples with total lead concentrations over 5ppm should be subjected to the <br /> Waste Extraction Test (methol 7421) unless it can be shown that the levels of lead at this site are actually` <br /> representative of naturally occurring background levels. Also, future water sampling should also include a <br /> test for total lead, <br /> The results of the initial Investigation shows contamination in the(soil and groundwater. In following Tri- <br /> Regional guidelines,the next step is to define the extent of the soil and ground water contamination. When <br /> the soil and ground water contaminant plumes have been fully defined,remedial activities can be initiated. <br /> Therefore, a work plan to investigate the fell extent of contamination is requested. Please submit the work <br /> pian by December 12, 1991. 11 <br /> If you have any questions. contact Linda Turkatte, EHS, of my staff at (2091 468-3442. 4 <br /> Jogi Khanna, M.D., M.P.H. <br /> Health Off' r <br /> t <br /> �F <br /> rie A. Cotul a, REHS, rogra .Manager #: <br /> nvironmental Health Division <br /> LAC/LTAb k <br /> b <br /> C. CVRWQCB - Elizabeth Thayer <br /> C. W000dward-Clyde Consultants <br /> 10370 Old Placerville Road, Suite 104 <br /> I` Sacramento, CA 95827-2505 jo <br /> C. Mrs. M. Conrady <br /> c/o Jeanne M. Zolezzi g <br /> Neumiller and Seardslee 'a <br /> 509 W. Weber, Fifth Floor , <br /> Stockton, CA 95203 <br /> i` <br /> P !4 <br /> i` <br /> 7 <br />` F <br /> Ih T. <br /> i, <br /> i� <br /> Ii <br /> !1 <br /> II <br /> ?� I <br />