Laserfiche WebLink
3 <br /> 03 October 2011 <br /> AGE-NC Project No. 95-0104 <br /> Page 2 of 2 <br /> of the EHD, wells MW-4, MW-6, and VW-1 were hand-cleared to three_ feet bsg after <br /> pressure grouting. <br /> Prior to commencement of well destruction activities each well casing was sounded with <br /> a Solinst water level meter to ensure that no obstructions were present in the casings. <br /> All wells were fitted with a pressure tight adapter connected to a hose extending from the <br /> F grout mixer. The grout mixture (A ratio of six gallons water for every 94-pound sack of <br /> portland cement was utilized in preparation of the grout"mixture) was pumped into each <br /> well casing for five minutes under approximately 15-25."pounds per square inch (psi) of <br /> pressure. The well boxes were then removed and the wells were over-drilled to three feet <br /> bsg using a CME-75 hollow stem auger drill rig equipped with 8'F25-inch diameter or 10.25- <br /> inch diameter hollow stem augers, wells MW-4, MW-6, and VW-1 were hand-cleared to <br /> three feet bsg. The top three feet of the well casings were then removed and the borings <br /> were filled with the grout mixture and then soil cuttings to the near surface. Depending on <br /> the location, the borings were completed at the surface with soil cuttings or concrete. <br /> If you have any questions or require further information, please contact our office at (209) <br /> 467-1006. <br /> Sincerely, <br /> Advanced GeoEnvilronmen `Gf <br /> Q�Q`P� •MIS < � � ' <br /> . m 2 <br /> No.8574 <br /> �P <br /> Brian W. Millman OFCA��F�Q <br /> Senior Project Geologist <br /> California Professional Geologist No. 8574 <br /> f <br /> E cc: Mr. Jonathan Marlowe, SWIC, LLC <br /> Mr. James Barton, CVRWQCB <br /> Advanced CeoEnvironmental,Inc. <br /> ' i <br />