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Xiong, Lor From: Kimberly Brandt <KBrandt@Geosyntec.com> Sent: Thursday, April 11, 2019 2:25 PM To: Murphy, John@Waterboards; Lor Xiong [EH] Cc: Anju Wicke; Rosemarie Thomas Subject: RE: Port of Stockton: Redrilling at UST916B Thank you John. Kim From: Murphy,John @Waterboards<John.Murphy@Waterboards.ca.gov> Sent:Thursday, April 11, 2019 2:22 PM To: Kimberly Brandt<KBrandt@Geosyntec.com>; Lor Xiong [EH] <Ixiong@sjcehd.com> Cc:Anju Wicke<AWicke@Geosyntec.com>; Rosemarie Thomas<RThomas@Geosyntec.com> Subject: RE: Port of Stockton: Redrilling at UST916B Good Afternoon Kim, Per our phone discussion and due to the delay in TPH analysis at UST916B, I approve an extension on submission of the closure report to May 15. Thank you, John Murphy From: Kimberly Brandt<KBrandt@Geosyntec.com> Sent: Friday, March 15, 2019 8:00 AM To: Murphy,John @Waterboards<John.Murphy@Waterboards.ca.gov>; Floyd, Walter@Waterboards <Walter.Floyd @Waterboards.ca.gov>; Lor Xiong [EH] <Ixiong@sjcehd.com> Cc: Anju Wicke<AWicke@Geosyntec.com>; Rosemarie Thomas<RThomas@Geosyntec.com> Subject: Port of Stockton: Redrilling at UST916B John, Walter, and Lor, One of the analyses,TPH as gasoline,for the soil sample collected at UST916B was run out of the hold time.This is an analysis that is necessary for the LTC criteria.Therefore, we will need to redrill the boring at UST916B to collect the soil sample for analysis.The redrilling work is currently scheduled for at 7:30am on March 27, 2019. Since this site is not located in a secure location, we are planning to drive directly to the site and conduct the drilling. We should be able to complete the work in approximately 2-3 hours. Lor, we will confirm with you 48 hours prior to the drilling. Please let me know if you have any questions or comments. Regards, Kimberly Brandt,P.G., C.Hg. (CA) Senior Geologist ------------------------------------------------------