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Mr. Harlin Knoll <br /> May 10, 1993 <br /> Page 4 <br /> sampling will be conducted in accordance with ESE SOP No. 3 for Ground Water <br /> Monitoring and Sampling from Monitoring Wells (attached). Ground water samples will <br /> be collected from the wells with dedicated plastic disposable bailers and stored on ice in <br /> appropriately labeled glassware for transport to a State-certified laboratory. In addition, <br /> ESE will collect a laboratory supplied trip (travel) blank and a duplicate ground water <br /> sample for quality assurance/quality control (QA/QC) purposes. Samples (including <br /> appropriate quality assurance samples) will be submitted to C&T for analyses for TPH-D <br /> and BTEX. <br /> ESE will conduct a level survey of the new well and tie the elevation to those of the other <br /> site wells. This will allow calculation of ground water elevations for individual wells, from <br /> which the magnitude and direction of ground water from beneath the site will be estimated. <br /> Report Preparation <br /> ESE will prepare a report of the investigation for AT&T review and approval documenting <br /> the methods employed while conducting field activities. The report will include a site map <br /> showing boring locations, geologic boring logs, and tables summarizing analytical data. <br /> Soil and Ground Water Disposal <br /> Upon receipt of analytical results of soil and ground water samples, ESE will arrange for <br /> the disposal of stockpiled soil and ground water. <br /> Enclosed with this proposed work, please find a check for $89 and a well permit application. <br /> We would like to conduct site activities the week of May 17, 1993, if possible. Please <br /> contact Kerry Lefever or Sue Wickham at (510) 685-4053 with any questions or continents. <br /> Sincerely, <br /> ENVIRONMENTAL SCIENCE & ENGINEERING, INC. <br /> �' <br /> Kerry Lef er Susan S.Wickham,RG 3851 <br /> Senior Staff Geologist Senior Geologist <br /> Enclosures (6) <br /> pc: Mr. Art Romann, AT&T Communications, Pleasanton <br /> F:\...\925009\WORKPLN.LTR <br />