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L26 February 2007 <br /> AGE-NC Project No. 99-0669 <br /> Page 4 of 4 <br /> listed in Section 2.2. <br /> After collection of the sample, soil vapor from the polyethylene tubing will be monitored for the <br /> presence of volatile organics using a photo-ionization detector(PID)pre-calibrated to isobutylene. <br /> 3.1.2. Equipment Decontamination <br /> All sampling tools used for sample collection will be thoroughly rinsed with clean water after being <br /> Lwashed with a solution of Alconox. <br /> 3.1.3. Boring Abandonment <br /> Following collection of soil-gas vapor samples, each borehole will be filled to the ground surface <br /> with a Portland�e� II���� cement grout.The grout mixture will consist of Type MI portland neat cement <br /> and not mo e thgalfons"of water per 94-pound sack of cement. The grout will be deployed <br /> through a 1-inch diameter PVC tremmie..pipe. if required, a grouting inspection will be scheduled <br /> with SJCEHD personnel. <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L <br /> L <br /> Advanced GeoEnvironmenta4 Inc. <br /> L <br />