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L/ Well Destruction Activities <br /> Diamond Walnut Growers <br /> Stockton,California <br /> Page 2 of 2 <br /> well to the bottom of the casing. The perforating tool was raised five feet and then lowered five feet <br /> while simultaneously perforating the steel casing. The well casing was vertically perforated by <br /> forcing compressed air into the Mills Knife. The perforating tool was then raised ten feet and <br /> subsequently lowered five feet while simultaneously perforating the steel casing. This procedure was <br /> repeated until the entire length of the well casing was perforated. <br /> The perforating tool was removed from the well and a cement and sand mixture (10 sack) was <br /> pumped into the well under pressure using tremmie pipe that was placed at the bottom of the well <br /> and raised as the cement and sand mixture rose to the top of the casing. The vault was filled with the <br /> cement and sand mixture to within approximately one foot of the top of the vault (at grade). <br /> Approximately 13.5 cubic yards of the cement and sand mixture were pumped into the well and <br /> vault. <br /> If you have questions or require additional information, please contact ATC Associates Inc. at (209) <br /> 579-2221. <br /> Sincerely, <br /> m \ <br /> To Hafner <br /> Project Geologist <br /> Je�9 <br /> y, P.E. <br /> Registered Engineer No. C47410 <br /> Attachments <br /> cc: Mary Serra—CRWQCB <br /> Mike Lescisin—DWG <br /> ATC Associates Inc. <br />