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i <br /> March of 2008. Well MW10 had a reported concentration of 2 .6 Ag/L <br /> during the initial sampling event in August 2010, and has since not <br /> had <br /> reportable concentrations. <br /> David R. Daniels, PG 8737 <br /> Senior Staff Geologist <br /> Cardno ERI <br /> 601 North McDowell Blvd- , Petaluma, CA 94954 <br /> Phone: 707 766 2000 Direct: 707 766 2024 Mobile: 707 338 <br /> 6997 Fax: 707 789 0414 <br /> From: Vicki McCartney [EH] (mailto:vmccartney@sjcehd.com] <br /> Sent: Tuesday, January 24, 2012 9:55 AM <br /> To: David R. Daniels <br /> Subject: Former Mobil Service Station located at 25355 North <br /> Highway 99, Acampo, CA <br /> F <br /> i <br /> Good morning David, i <br /> Nuel Henderson, PG, and I discussed the data submitted in Mass <br /> Calculations, Trend Analysis, and Request for Closure, dated 28 <br /> September 2011 for the Former Mobil Service Station 99ACA located at <br /> 25355 North Highway 99, Acampo, California. Missing from the report <br /> was <br /> an, estimate of the time it will take before the groundwater <br /> contaminant <br /> concentrations of 1,2-dichloroethane (1r2-DCA) will return to water <br /> quality goals. Please provide. trend graphs and time predictions, <br /> supported by calculations, for meeting water quality objectives for <br /> 1,2-DCA. This information can be sent to me in an email and I will <br /> forward this information to Jim Barton, PG, at the California Regional <br /> Water Quality Control Board Central. Valley Region. r <br /> Vicki McCartney, Senior REHS f <br /> I <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> Phone: (209) 468-9852 <br /> Fax: (209) 468-3433 <br /> Email: vmccartney@sjcehd.com <mailto:vmccartney@sjcehd.com> <br /> i <br /> 5 ' <br />