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Stantec <br /> August 7,2008 <br /> Page 2 of 8 <br /> removed, the borings were filled with neat cement grout and capped with one foot of concrete to <br /> match existing grade. <br /> Waste Disposal <br /> Well destruction debris and non-hazardous soil generated during well destruction activities were <br /> temporarily stored onsite in properly labeled 55-gallon drums. Four discrete soil samples were <br /> collected from the non-hazardous soil drums in 2-inch diameter by 3-inch-long brass sample ' <br /> tubes sealed with Teflon(D sheets and plastic caps. Samples"were labeled and placed on ice in <br /> an insulated container for delivery under chain-of-custody (COC) documentation to Kiff <br /> Analytical in Davis, CA for profiling. The four discrete soil samples were combined in the <br /> laboratory into one composite sample (SP2[ABCD]) and analyzed for TPHg, BTEX, and MtBE <br /> by Environmental Protection Agency (EPA) Method 82806, and total lead by EPA Method <br /> 60108 (Attachment D). <br /> Following acceptance of the soil profile data, Belshire Environmental Services Inc. transported <br /> the non-hazardous soil to TPST Soil Recyclers in Adelanto, California on July 28, 2008. <br /> Copies of the waste disposal documentation are included as Attachment E. <br /> Conclusions <br /> On July 15, 2008, Stantec supervised the destruction of four onsite groundwater monitoring <br /> wells and two onsite dual-nested remediation wells. Soil cuttings and debris generated during <br /> well destruction activities were properly disposed of offsite'. Based on compliance with the <br /> SJEHD and CRWQCB closure requirements, and on behalf of 7-Eleven, Inc., Stantec requests <br /> final closure of the site. <br /> i <br /> i . <br /> i <br /> I <br /> I <br /> I <br />' 21756 Well Destruction Report.doc <br /> i <br />