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Page 1 of 1 <br />Garrett Backus [EH] <br />To: Werelius, Stig <br />Subject: RE: Valero Station, 1210 E. Hammer Lane - Addendum (SR0057187) <br />Attachments: 1210 Hammer Lane.pdf <br />Stig, <br />Here is the approval letter for amended permit application. The secondary containment testing for the product piping and <br />UDCs is done per the equipment manufacturer's instructions. Product piping is usually done by pressurizing the <br />secondary piping to 5 psi and holding for one hour. UDCs are usually tested by doing a hydrostatic test for 24 hours. <br />There are also accelerated hydrostatic tests using test equipment such as Incon. <br />Garrett Backus, REHS <br />San Joaquin County Environmental Health Department <br />600 E. Main Street <br />Stockton, CA 95202 <br />telephone: (209) 468-2986 <br />fax: (209) 468-3433 <br />email: gbackus@sjcehd.com <br />From: Werelius, Stig [mai Ito: Stig.Werel ius@stantec.com] <br />Sent: Friday, August 21, 2009 3:07 PM <br />To: Garrett Backus [EH] <br />Cc: Sexton, Tom® Huff, Sandy; Duane Irelands Schafer, Craig; Tim Stornetta® Denise Stornetta <br />Subject: Valero Station, 1210 E. Hammer Lane - Addendum (SR0057187) <br />Garrett. <br />Thank you for taking the time to discuss this project with me. <br />Attached you will find the revised drawing and an addendum letter. <br />When we spoke, you mentioned secondary containment testing for the piping and sumps. Can you please specify <br />exactly which tests we are going to be required to perform? <br />Again, thank you for your time and assistance. Call me with any questions or comments. <br />Respectfully, <br />Stig Werelius <br />Assistant Project Manager <br />Stantec <br />1137 North McDowell Boulevard <br />Petaluma CA 94954 <br />Ph: (707) 765-1660 Ext. 751 <br />Fx: (707) 765-9908 <br />stig.werelius@stantec.com <br />Statltec.com <br />The content of this email is the confidential property of Stantec and should not be copied, modified, retransmitted, or used for <br />any purpose except with Stantec's written authorization. If you are not the intended recipient, please delete all copies and notify <br />us immediately. <br />14 Please consider the environment before printing this email. <br />8/24/2009 <br />