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GECMATRIX <br /> The volume of sealing material used will be calculated and compared to the casing or borehole <br /> volume to ensure that bridging has not occurred during well destruction. If the well is in an <br /> urban area and if the casing remains in the borehole, a hole will be excavated around the well <br /> to a depth of 5 feet, and the casing will be removed to the bottom of the excavation. The <br /> sealing material will be allowed to spill over into the excavation to form a cap. The remainder <br /> of the excavation will be backfilled with either native material, grout, or concrete. <br /> Attachments: Daily Field Record <br /> Typical Monitoring Well Construction Diagram <br /> Well Log <br /> Well Sampling and/or Development Record <br /> INSTALLATION AND DESTRUCTION OF WELLS Page 8 of 8 <br /> MSCTROTO-IW.TXT REVISION DATE:MARCH 1996 IW-8 <br />