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N0.. --N <br />.r ./ <br />Mr. John DeSelm <br />Anheuser Busch Companies <br />One Busch Place <br />St. Louis, MO 63118 <br />29 March 1989 <br />PROBLEM ASSESSMENT WORK PLAN FOR RAINBO BAKERY, 2651 SOUTH AIRPORT WAY, <br />STOCKTON, SAN JOAQUIN COUNTY <br />Thunk „u for submitting the 19 September 1988 work plan for our review. We <br />have discussed the work plan with the San Joaquin Local Health District <br />;5a'HC4 and we agree it is acceptable, All necessary permits to conduct this <br />u are to be obtained from the appropriate local agencies, <br />lave the following comments and recommendations which are to be addressed <br />�_1 the proposed work is conducted: <br />Water samples are to be collected from all the monitoring wells <br />'including monitoring wells MW#2 and MW#3) for BTX&E and TPH analyses. <br />-�e continuously cored boreholes are to be sampled for laboratory <br />ralysis every 5 -foot interval or change in lithology using a 1.5 -foot <br />'u1g >Plit—spoon sampler. These undisturbed soil samples are to be <br />co " ected after each 5 -feet of continuous core has been retrieved. We <br />do not recommend collecting and transferring soil samples to glass jars <br />for laboratory analysis from the continuous core, as proposed in the <br />,ork plan, because the soil will be agitated and volatile hydrocarbons <br />ost. <br />3. All ground water and soil sample data are to be presented in tables <br />within the text of the Problem Assessment Report (PAR). <br />4. The 11thologic logs for all monitoring wells and borings at this site <br />are to be included in the PAR. <br />Upon completion of this proposed work, assuming that the ground water plume <br />has been adequately defined, a complete and comprehensive PAR is to be <br />completed and submitted to us and the SJLHD within six (6) weeks of receiving <br />the laboratory results, but no later than 15 June 1989. If the ground water <br />plume is not defined upon the completion of this work, additional <br />investigative work will be required and a work plan is to be completed and <br />submitted to us and the SJLHD within three (3) weeks of receiving the <br />laboratory results. This work plan could be a letter explaining your <br />continuing work and an attached site ma- showing the additional wells or <br />boring locations. <br />If you have any questions, pleas- c.-11 me at (916) 361-5725. <br />EDWARD W. JAMES <br />Engineering Geologist <br />EWJ:ewJ <br />cc: Ms. Diane Hinson, ;n a? ;iealth Distric+, Stockton <br />Mr. Frank McPherson, t+y, Stockton <br />Mr. Jena A. Baker, A. +,�hn+cal Consultants, Roseville <br />