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9 <br /> i <br /> A <br /> Elinor Ratliff Page 3 <br /> January 2 , 1994 i <br /> i <br /> CONCLUSION <br /> Assuming that the samples indicate the absence of hydrocarbon } <br /> material , a request will be made to close the file on Toyota <br /> Town. Should samples indicate the existence of hydrocarbon <br /> materials below the County' s threshold, additional borings will <br /> be made to determine the size of the plumb. An evaluation will <br /> be made at that time. <br /> Based upon the length of pipe, the five (5) samples will be E <br /> representative of the entire length of both pipes . I believe <br /> that the process described'; above should be satisfactory. If you <br /> agree, please indicate by return letter, including the amount of <br /> advance notice you require; whether or not you need to be present <br /> when the cores are drilled (approximately 30 minutes per hole) <br /> and the cost for oversight. Please indicate any other require- <br /> ments you may have regarding a formal work plan or suggestions to <br /> improve this document. Your assistance will be appreciated. <br /> Sincerely i <br /> 6 <br /> William B. Anderson <br /> cc: Bob Zamora <br /> r 1 <br /> ' n <br /> s <br /> i <br /> s <br /> I <br /> I; <br /> ' e <br /> T <br /> 4 <br /> I <br /> F <br /> r I <br /> 4 <br /> '1 <br /> r Zi <br />