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Page 1 of 1 <br /> Thuy Tran [EH] <br /> From: Dan Goalwin [dgoalwin@barghausen.com] <br /> Sent: Friday, April 27, 2012 2:36 PM <br /> To: Thuy Tran [EH] <br /> Cc: Sean Murphy; Pete Tobin; File; Edgar Rizkalli; Jay Grubb <br /> Subject: Removal of Dead men Tank Anchorage-Arco am/pm Valpico Blvd and Tracy Blvd., Tracy <br /> California BCE#14624 <br /> Attachments: 20120427141216771.pdf <br /> Thuy, please accept this e-mail as our approval for to remove the dead-men anchors from this project.The <br /> geotechnical soils investigation indicated the water table is below 25 feet and as such this installation is <br /> considered a dry hole not needing dead-men hold-downs. Despite this and just to be certain, we re-ran the <br /> buoyancy calculations to confirm there was reasonable assurance that if water were to find its way into the tank <br /> excavation and found that due to the overburden alone,the tanks were well within a reasonable factor of safety <br /> to avoid buoyancy. Please call if you have any questions. <br /> Daniel B. Goalwin <br /> Barghausen Consulting Engineers, Inc. <br /> 18215 72nd Ave South <br /> Kent, WA 98032 <br /> Direct[ 425.656.7441 - Officel 425.251.6222 - Celli 206.396.8589 <br /> Please consider the environment before printing this email. <br /> 5/2/2012 <br />