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08 September 2000 <br />AGE -NC Project No. 97-0372 <br />Page 18 of 18 <br />stored in an area lacking public access pending laboratory analysis of the collected samples and a <br />determination of the proper disposal method. <br />5.8. WASTE MANAGEMENT <br />Soil cuttings are not generated by advancing probe borings, but could be generated by hand-augering <br />if that technique must be utilized. Such cuttings will be containerized in a DOT -approved 55 -gallon <br />drum, labeled with borings of origin, date and address, and will be stored in an area lacking public <br />access pending laboratory analysis of the soil samples and a determination of the proper disposal <br />method. Minimal excess soil is generated by geoprobe sampling, and consists mainly of soil sample <br />duplicates, which will be properly disposed. <br />5.9. BORE HOLE ABANDONMENT <br />All soil borings will be properly abandoned. The borings will be filled to the ground surface with <br />a cement grout. The grout mixture will consist of Type LII portland neat cement and not more than <br />6 gallons of water per 94 -pound sack of cement. The grout will be placed by pumping through <br />tremmie pipe for depths greater than 30 feet, in the saturated zone, and/or below points where hole <br />integrity cannot be maintained. Open hole above such conditions may be filled by free -fall of the <br />portland cement into the hole. A grouting inspection will be scheduled with the DTSC and <br />PHS-EHD. <br />Advanced GcoEncironmcntal. Inc <br />