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O1 April 2004 <br />AGE -NC Project No. 03-1055 <br />Page 2 of 2 <br />soil possibly associated with the Panetta site is located beneath Adams Street. A portion of the <br />contaminated soil is potentially sourced from the former, up gradient Chevron site west of the site, <br />and is inaccessible at this time. Data indicated that soil samples collected from the walls of the <br />excavations had no petroleum hydrocarbon compounds detection at or above laboratory reporting <br />limits in the most recent excavation. The excavation was backfilled and compacted with clean fill <br />material under the supervision of a certified soil engineer. <br />Hydrocarbon -impacted ground water on site is limited to the western boundary of the property, in <br />the area of former monitoring wells MW -2 and MW -3. If needed, AGE intends to evaluate the <br />remediation hydrocarbon impacted ground water on site through ground water extraction techniques <br />or other in-situ techniques. The duration of the remediation activities is dependent upon results of <br />future quarterly monitoring events. Quarterly ground water monitoring will occur once the new <br />monitoring wells are installed and should be scheduled quarterly until directed otherwise. <br />The preparation of additional ground water monitoring reports, a site model or a remediation plan <br />is contingent on the installation of the additional monitoring wells, continued ground water <br />monitoring and trend analysis of the data collected. <br />Lfyou have any questions or require additional information, please contact Ms. Donna Sexton or the <br />undersigned at {209} 467-1006. <br />Sincerely, <br />Advanced GeoEnvironmental, Inc. <br />Ro ert E. Marty <br />Project Geologist/Director of Operations <br />Advanced GeoEnvironmental, Inc. <br />