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v Page 1 of 1 <br /> Harlin Knoll [EH] <br /> From: Nuel Henderson [EH] <br /> Sent: Friday, January 11, 2013 11:40 AM <br /> To: 'gabe stivala' <br /> Cc: Adrienne Ellsaesser[EH]; Harlin Knoll [EH] <br /> Subject: RE: Request for Variance for Well Destruction at 2375 N. Tracy Boulevard Tracy, CA 94376 <br /> Gabe, <br /> I have reviewed the soil and groundwater data for the wells you propose to pressure grout due to <br /> significant hazards in close proximity to the wells; the wells are not shown to be in areas of known soil <br /> contamination and the latest monitoring data shows groundwater to not be impacted in any of the wells in <br /> question except MW-8, which had 100 ppb and 56 ppb GRO.in the last two monitoring events.The <br /> monitoring data for that well leads me to the opinion that the GRO is transitory and probably will not <br /> persist in the well. Therefore, in view of the potential hazards involved with overdrilling the wells and the <br /> lack of contamination in the areas of the wells, except MW-8 as noted, I will approve your request to <br /> destroy these wells by pressure grouting. Review the well standards for our county and comply with the <br /> requirements for pressure grouting. <br /> Nuel Henderson <br /> From: gabe stivala [mailto:gabe.stivala@atcassociates.com] <br /> Sent:Thursday, January 10, 2013 5:55 PM <br /> To: Nuel Henderson [EH] <br /> Cc: Harlin Knoll [EH]; Ralston, Ed C.: (P66); Lauren Palazzolo <br /> Subject: Request for Variance for Well Destruction at 2375 N. Tracy Boulevard Tracy, CA 94376 <br /> Nuel, <br /> On behalf of Phillips 66 Company, I am submitting the attached is a letter detailing a requests <br /> for variances for well destructions associated with the case at 2375 N, Tracy Blvd, in Tracy. <br /> Upon your approval we will schedule and implement the destruction of these last wells by our <br /> proposed alternate method. We appreciate your consideration of this matter. <br /> Best regards, <br /> Gabe <br /> Gabe Stivala, P.G <br /> SENIOR PROJECT MANAGER/SENIOR GEOLOGIST <br /> CARDNO ATC <br /> rttno <br /> ATC <br /> Phone(+1)916-923-1097 Fax(+1)916-923-6251 Direct(+1)916-386-3870 Mobile(+1)925-223-7123 <br /> Address 701 University Avenue, Suite 200, Sacramento, CA 95825 <br /> Email gabe.stivalaCaocardno.com Web www.cardnoatc.com-www.cardno.com <br /> This email and its attachments may contain confidential and/or privileged information for the sole use of the intended recipient(s). <br /> All electronically supplied data musebe checked against an applicable hardcopy version which shall be the only document which <br /> Cardno warrants accuracy.If you are not the intended recipient,any use,distribution or copying of the information contained in <br /> this email and its attachments is strictly prohibited.If you have received this email in error,please email the sender by replying to <br /> this message and immediately delete and destroy any copies of this email and any attachments.The views or opinions expressed <br /> are the author's own and may not reflect the views or opinions of Cardno. <br /> 1/11/2013 <br />