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` jCF KA t JUL _25 '96 15 .33 Na .003 P .02 <br /> ENVIRONMIM&ENERCY GROliP <br /> It.l�104scr Hngtnecrs,Inc. <br /> 1 t 2"Point t:EA rlClve, Suite 2011 <br /> K0110ht}COrdUVE1,CA 195742 <br /> b1 UA152-37VO Kax 511M152-3777 <br /> July 25, 1996 <br /> Ms. Mary 1q. Ways J <br /> San Joaquin County Public Health Services <br /> Envir0tuy7cntal Health Division <br /> 445 North San Joaquin, P.C. Bax 0388 <br /> Stockton, California 95201-03g8 <br /> Subject., "Request for Approval of Additional Soil Analyses foo- the Upcoming Field <br /> Investigation at the 425 Union Suet l. :Site, Stockton. Site Code, 2.41434 <br /> Dear Ms. Ways: <br /> In your letter of July 2, 1996, you gave cnntliticin;tl al>l7r0val of our Revistxi Soil Gas <br /> InvOligation Workplan for the subject site, requesting that physical propr~rly and TC1,P <br /> analysers be performed on contaminated soil samples that may be collected. Stich data would <br /> he useful for fate and transport analysis that could he used in support of a site Closure. request. <br /> If contaminated soil is encountered, it is cctitnatetl that the additional analyses will add <br /> approximately $1,650 to the project's estimated costs. This includes a maxinturn of nine soil <br /> samples for total organic carbon analyses, a maximum of 6 samples for the APLRP-40 <br /> package (which includes air permeability, total por-vsity, fluid saturation, gy-ctin density, and <br /> bulk density), and a tnaxitnum of 2 samples for. zero-hca,dspacer TOY analysis for Wr�X and <br /> TPHg. The field work is scheduled for compIction Atrgusl 1-2, 1996. <br /> Please send us written approval for these additional analyses (FAX transmittal would be <br /> apprmiate:d; FAX: 916-$52-3777). 111eaW feel free to call with airy questions you may have, <br /> and thank you for your cooperation in this matter. <br /> Sincerely, <br /> Jelin M. Farr, Ph.D., P.E. <br /> Chief Engineer <br /> CC. Jeff Lawson, freed, Elliott, Creech & Roth <br /> 'Elizabeth Thayer, CVRWQCB <br /> I <br />