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Shih, Steven [EHD] From: Shih, Steven [EHD] Sent: Tuesday, August 3, 2021 11:08 AM To: Christopher Wan Subject: RE: C-1674 Stockton Well Destruction Proposal 340571993 - wp0041947 Hi Christopher: Below is the destruction requirement: • A hole at least one foot larger in diameter than the originally drilled hole shall be excavated around the outside of the well casing to a depth not less than 3' below the ground surface. • The vent casing shall be cut off 6" above the bottom of this excavation and removed. • The grout used to fill this excavation shall be allowed to spill over into the excavation and fill it for a thickness of one foot and form a cap which has a diameter of at least one foot greater than the diameter of the originally drilled hole. This should result in the exposed edge of the casing being covered with 6" inches of grout and pave over it. Please feel free to contact me for any questions. Regards, Steven Shih, REHS Program Coordinator San Joaquin County Environmental Health Department (209) 468-9850 From: Christopher Wan <cwan@aegion.com> Sent: Tuesday, August 3, 202110:48 AM To: Shih, Steven [EHD] <sshih@sjgov.org> Subject: RE: C-1674 Stockton Well Destruction Proposal 340571993 CAUTION: This email is originated from outside of the organization. Do not click links or open attachments unless you recognize the sender and know the content is safe. Yes there is a seal around the vent From: Shih, Steven [EHD] <sshih@sigov.org> Sent: Tuesday, August 3, 2021 10:44 AM To: Christopher Wan <cwan@aegion.com> Cc: Ruvalcaba, Cesar [EHD] <cruvaIca ba@sigov.org>; Wong,Jeff [EHD] <Jwong@sigov.org> Subject: [EXTERNAL] RE: C-1674 Stockton Well Destruction Proposal 340571993 Is there a seal AROUND the vent pipe? From: Christopher Wan <cwan@aegion.com> Sent: Tuesday, August 3, 202110:34 AM To: Shih, Steven [EHD] <sshih@sigov.org>