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Hello Larry, <br /> This is Gabriel Gonzalez,the case worker for 620 W Charter Way,Stockton. I have spoken with my supervisor,Adrienne <br /> Ellsaesser regarding the variance request to pressure grout MW-3, MW-7, MW-8 and MW-9. Please see the information <br /> below. <br /> MW-8 and MW-9: Adrienne accepts the variance request to pressure grout these two wells due to their locations <br /> between two USTs. <br /> MW-3 and MW-7: Can the electrical lines in close proximity to these two wells be de-energized without impacting <br /> nearby business? <br /> Sincerely, <br /> Gabriel Gonzalez <br /> From: Silva, Larry fmailto:lsilva craworld.com] <br /> Sent: Tuesday, June 10, 2014 3:02 PM <br /> To: Vicki McCartney [EH] <br /> Cc: Adrienne Ellsaesser [EH]; Arganbright, Cristina; Gabriel Gonzalez [EH]; Murphy, Mike <br /> Subject: FW: 620 West Charter Way, Stockton -Variance Request <br /> Hi Vicki, <br /> If well destructions by pressure grout is approved,CRA agrees to follow the methods outlined in your email below. <br /> Larry J.Silva <br /> Conestoga-Rovers&Associates(CRA) <br /> 10969 Trade Center Drive,Suite 107 <br /> Rancho Cordova,CA 95670 <br /> Phone: 916.889.8914 <br /> Fax: 916.889.8999 <br /> Email: Isilva@craworld.com <br /> www.CRAworld.com <br /> From: Vicki McCartney [EH] [mailto:vmccartney(a)sjcehd.com] <br /> Sent: Tuesday, June 10, 2014 2:40 PM <br /> To: Silva, Larry <br /> Cc: John Yoakum [EH]; Arganbright, Cristina; Adrienne Ellsaesser [EH]; Gabriel Gonzalez [EH] <br /> Subject: RE: 620 West Charter Way, Stockton - Variance Request <br /> Good afternoon Larry, <br /> Gabriel Gonzalez is the new case worker for the Interstate Shell site at 620 West Charter Way in Stockton. You can <br /> reach him at 209.468.3442. 1 will be working with Gabe as this case is moved to closure. <br /> The San Joaquin County Well Standards do no specify the pressure or time requirements for applying pressure when a <br /> well is pressure grouted. If our agency approves pressure grouting these wells, twenty-five pounds per square inch of <br /> liquid pressure must be applied for at least ten minutes. San Joaquin County Well Standards do require that"If the well <br /> casing was left in place during the sealing operations, a hole at least one foot larger in diameter than the originally drilled <br /> hole shall be excavated around the outside of the well casing to a depth of 3 feet below the ground surface, and the well <br /> casing shall then be cut off 6 inches above the bottom of this excavation and removed. The grout used to fill the well shall <br /> be allowed to spill over the excavation during the sealing operation, and fill it for a thickness of one foot and form a "cap" <br /> which has a diameter of at least one foot greater than the diameter of the originally drilled hole." <br /> If our agency approves the variance request, does Conestoga-Rovers and Associates agree to these terms when <br /> proposing to pressure grout these four wells? <br /> 2 <br />