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Lichtenberger, Deborah <br /> From: Vicki McCartney [EH] [mailto:vmccartneysalsjcehd.com] <br /> Sent: Monday, May 19, 2014 2:39 PM <br /> To: Magee, Amanda <br /> Cc: Adrienne Ellsaesser [EH]; Nuel Henderson [EH]; John Yoakum [EH]; Lichtenberger, Deborah; Manning, Danielle <br /> Subject: RE: Variances for 7-Eleven Store No. 17334 <br /> Hi Amanda, <br /> I did not receive any photo attached to your email below, but based on your description of high-voltage electric lines <br /> running almost directly under the well box of MW-4, I concur that the remaining well box should not be removed. The risk <br /> is too great. <br /> I am concerned about any future road construction that may involve monitoring well MW-4. I can only hope that grout <br /> applied under pressure will protect the groundwater from any surface contamination. <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: vmccartney(a)sjcehd.com <br /> From: Magee, Amanda Finailto:Amanda.Magee(abstantec.com] <br /> Sent: Monday, May 19, 2014 1:34 PM <br /> To: Vicki McCartney [EH] <br /> Cc: Adrienne Ellsaesser [EH]; Nuel Henderson.[EH]; John Yoakum [EH]; Lichtenberger, Deborah; Manning, <br /> Danielle <br /> Subject: RE: Variances for 7-Eleven Store No. 17334 <br /> Hi Vicki, <br /> After speaking with PG&E and our driller's health and safety team, Stantec respectfully requests to leave <br /> the MW-4 well box in place. As we discussed last week, there are high-voltage electric lines running <br /> almost directly under the well box (see attached photo). According to the engineers at PG&E, the <br /> depth of the lines cannot be confirmed, but they may be shallower than 24" bgs. Also, they will not turn <br /> off that section of line, as that would result in a loss of power to their customers. Our drillers do not feel it <br /> is safe to jackhammer out the concrete pad and well box in such close proximity to active high-voltage <br /> electric lines. <br /> On Friday, May 16, the well was pressure grouted to the surface.The metal ring at the top of the well <br /> box was removed and the void was tilled with concrete. Please let me know if this will be an <br /> acceptable alternative to removing the entire well box. <br /> Thank you, <br /> i <br />