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Report-Monitoring Well Abandonment Page 2 <br /> Former Karlson Trucking <br /> Project No. 191.2 <br /> August 6, 2002 <br /> Following the recommendations of Geo-Phase Environmental, on May 11, <br /> 2000 the RWQCB staff directed that a report be prepared to assess the <br /> potential risks associated with leaving the residual hydrocarbon <br /> contamination in-situ with no engineered corrective action. Pursuant to the <br /> directive, the document entitled Report, Site Closure Risk Assessment, <br /> Former Karlson Truckinff Property was submitted on July 23, 2001. The <br /> report concluded that the residual diesel contamination was being reduced by <br /> natural attenuation, and that no material health risk was posed by the small <br /> residual contaminant mass. On June 13, 2002 the RWQCB staff issued a <br /> letter of conditional closure of the site. The closure was conditioned on the <br /> proper abandonment of the remaining 6 groundwater monitoring wells. <br /> 1.2 Scope of Work <br /> The following work was completed during field activities associated with this <br /> Scope of Work. <br /> 1. Obtain a permit to destroy to monitoring wells. <br /> 2. Properly abandon the six wells. <br /> 2937 Veneman Avenue, Suite B240 Geo-Phase Environmental Inc. Phone: (209)569-0293 <br /> Modesto, Ca 95356 Fax: (209)569-0295 <br />