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SubbotnikovaNatalia From: DelFrate, Todd @Waterboards <Todd.Del Frate@waterboa rds.ca.gov> Sent: Tuesday, May 03, 2016 12:26 PM To: Bahadori, Taj Cc: Robert McClellon [EH]; Natalia Subbotnikova [EH]; Chandra, Joyesh; Acevedo, Juan; Julian C. Isham Oulian.isham@CBI.com); Hold, Howard@Waterboards Subject: RE: SG -2A Water Table - Foothill Landfill Thanks Taj for the notification. Field conditions, in most cases, dictate well construction and for that reason flexibility is necessary. I appreciate the call from J.C. and the note from you. Good luck with the drilling. I may schedule a site visit during this phase of activities. I will let you know if I do. From: Bahadori, Taj [mailto:tbahadori@sjgov.org] Sent: Tuesday, May 03, 2016 11:23 AM To: DelFrate, Todd@Waterboards Cc: Robert McClellon [EH]; Natalia Subbotnikova [EH]; Chandra, Joyesh; Acevedo, Juan; Julian C. Isham (iulian.isham@CBI.com); Bahadori, Taj Subject: FW: SG -2A Water Table - Foothill Landfill Hi Todd, I understand you were briefed by J.C. Isham of CB&I on the progress of well drilling at Foothill. We began construction of the wells at Foothill last week per approved EFS. On drilling well SG -2A we encountered Groundwater at 252 ft., which is shallower than we anticipated. The geologist on-site will make adjustments based on actual geologic conditions. Please let me know if this email is adequate notification on this issue. Thank You Taj M. Bahadori, PE Senior Engineer (209) 953-7316 San Joaquin County Public Works, Solid Waste Division From: Isham, Julian [mailto:Julian.lsham@cbi.com] Sent: Tuesday, May 03, 201610:55 AM To: Bahadori, Taj; Chandra, Joyesh; Anderson, Michael R. Cc: Thompson, Darrell H Subject: RE: SG -2A Water Table Talked again to our field geologist, Mike Glas, he now tells me that GW is at 252 ft. I told him to install the deep screen from 237 to 217 ft, which is a 15 ft separation between GW.