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7 <br /> 17 August 2012 <br /> AGE-NC Project No. 01-0887 <br /> Page 6 of 6 <br /> BORING ABANDONMENT <br /> Following collection of soil-vapor samples, each borehole will be filled to the ground <br /> surface with a Portland type II cement grout. The grout mixture will consist of Type Illi <br /> portland neat cement and not more than 6 gallons of water per 94-pound sack of cement. <br /> The grout will be poured into the boring. The EHD will be given the opportunity to inspect <br /> the grout mix prior to backfilling activities. <br /> If you have any questions or require further information, please contact our office at (209). <br /> 467-1006. <br /> Sincerely, <br /> S10%AL GFO <br /> Advanced GeoEnvironmental, Inc. Q�o��PM A. <br /> 1 <br /> No. 7473 <br /> Daniel J. Villanueva William R. Little OF c���F°Q� <br /> Staff Geologist Senior Project Geologist <br /> Registered Geologist No. 7473 <br /> Enclosure <br /> cc: Ms. Sandi Sarale, EHD <br /> Mr. James Barton, CVRWQCB <br /> Advanced GeoEnvironmental,Inc. <br />