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Martinez, Genesis [EHD] <br /> From: Shatz, Richard <RShatz@geiconsultants.com> <br /> Sent: Thursday, August 24, 2023 9:02 AM <br /> To: Wong,Jeff [EHD] <br /> Cc: Russell, Bryce@DWR <br /> Subject: RE: Bentonite clay swelling potential <br /> Attachments: MW-203_rerevised workplan.pdf; MW-203 Construction Details_8-23-23.pdf <br /> Attached is the re-revised Workplan and Typical Construction details with the edits requested below. I yellow <br /> highlighted those areas that I changed based on your comments below. <br /> I have removed the potential bentonite clay swelling potential from the text since this seemed to give you concern. I was <br /> not able to find any manufacturers cut-sheets describing the swelling potential. Did not have time to further my <br /> research. <br /> Look forward to taking this to final and having the well permit approved. Bryce says the drilling company is planning to <br /> start on Monday. <br /> Richard Shatz, C.E.G 1514, C.HG 84 <br /> Principal Hydrogeologist <br /> EI Consultants <br /> {.�FI5RJ�1115 L:u "�wrrR&S��rls�ises <br /> GEI Consultants, Inc. <br /> 2868 Prospect Park Drive,Suite 400 1 Rancho Cordova, CA 95670 <br /> T:916.631.4566 1 M:916.599.4630 1 F:916.631.4501 <br /> www.geiconsultants.com I ward I map I Linkedln I Twitter I Facebook <br /> From: Wong,Jeff[EHD] <Jwong@sjgov.org> <br /> Sent:Wednesday,August 23, 2023 7:42 AM <br /> To: Shatz, Richard <RShatz@geiconsultants.com> <br /> Cc: Russell, Bryce@DWR<Bryce.Russel I@water.ca.gov> <br /> Subject: [EXT] RE: Bentonite clay swelling potential <br /> Bryce, Richard: <br /> Per our telephone conversation today first with Richard,then with Bryce,the EHD request the following be addressed, <br /> or incorporated into the work plan proposal, and submit revision to EHD for review: <br /> Bryce stated DWR also prefers the well screen to be 10'-20', and sandpack 30'-50', but the final well design to be <br /> based on the elog obtained during the initial boring before actual well installation, and with Bryce (or <br /> appropriate DWR) and EHD inspector on site comment/agreement. Please provide that in writing by submitting <br /> a revised work plan and Figure <br /> i <br />