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I, <br /> Lichtenberger, Deborah <br /> From: Vicki McCartney [EH] [mailto:vmccartney(a)sjcehd.com] <br /> Sent: Monday, March 24, 2014 4:15 PM <br /> To: Magee, Amanda <br /> Cc: Manning, Danielle; Lichtenberger, Deborah <br /> Subject: RE: 7-11 #20632, 4627 DaVinci Drive, Stockton <br /> Amanda, <br /> I will approve destroying nested well SPV-2 and monitoring well MW-2 at the 7-Eleven Store No. 2243-20632 at 4627 <br /> DaVinci Drive in Stockton by using a tremie pipe to insert the grout into the casings, then apply pressure at 125 psi for ten <br /> minutes followed by removing the well box and adding more grout; then finish the top several inches of the hole with <br /> asphalt. Since these wells appear to be so close (two to three feet)to underground utilities, the mushroom cap may be <br /> omitted. <br /> Vicki McCartney, Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205 <br /> Phone: (209)468-9852 <br /> Email: vmccartneyCo)sicehd.com <br /> From: Magee, Amanda [mailto:Amanda.Maaee@stantec.com] <br /> Sent: Monday, March 24, 2014.1:23-PM <br /> To: Vicki McCartney [EH] <br /> Cc: Manning, Danielle; Lichtenberger, Deborah <br /> Subject: 7-11 #20632, 4627 DaVinci Drive, Stockton <br /> Hi Vicki, <br /> Thank you for taking the time to chat with me regarding the well destruction at the above referenced <br /> site. As I mentioned, monitoring well MW-2 and remediation well SPV-2 are both located close to <br /> underground utilities, as shown.in the attached pictures. These wells are not in the source area, and <br /> recent groundwater samples from MW-2 have only contained low concentrations of MtBE. I have <br /> attached our soil and groundwater tables as well.Stantec proposes to pressure grout these wells to the <br /> surface, remove the well box, and finish the surface with asphalt to match the existing driveway. Please <br /> let me know if this is an acceptable proposal. <br /> Thank you, <br /> Amanda Magee, P.G. <br /> Associate Geologist <br /> Stantec <br /> 3017 Kilgore Road Suite 100 Rancho Cordova CA 95670-6150 <br /> Phone: (916) 384-0743 <br /> 1 <br />