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r FROM;: Ground Zero Analysi PHONE N0. 209 838 9883 Feb. 26 2004 02:25PM P2 <br /> GROUND ZERO ANALYSIS,INC. <br /> i <br /> 1714 Main Street. <br /> Escalon,California 953204927 <br /> Telephone:(209)838-9888 <br /> Facsimile:(209)838.9883 <br /> February 26,2004 <br /> Mr.James L.L.Barton <br /> Regional Water Quality Control Board <br /> Central Valley Region <br /> 11020 Sun,Center Drive,4200 <br /> Sacramento,CA 9670 <br /> Subject: Weekly Progress Update <br /> Speedy Foods, 8200 N.Highway 99,Stock-ton,CA <br /> Dear Mr.Barton: <br /> Pursuant to your letter dated December 3, 2003, the following summarir,.es system operation during the <br /> period February 1$through February 23,2004. <br /> The system operated continuously during the reporting period_ but was automatically shut down and re- i <br /> started by the fluid level switches clue to draw-down in the extraction well. The measured flow rate during <br /> the site visit was 1.6 gallons per minute(gpm)_ The average flow rate during the reporting period was 1.1 <br /> gpm. Approximately 141,435 gallons of groundwater has been treated through the carbon units since the <br /> carbon was replaced on December 1,2003. <br /> Samples were collected from Cl,C2, and the effluent(EFF) on February 23, 2004 and analyzed for volatile <br /> organic compounds (VOCs), including oxygenated gasoline additives_ No VOCs were detected in the <br /> samples collected from C 1, C2,or EFF. <br /> Tables 1 and 2, attached. summarize treatment system flow and analytical data collected to date. Please <br /> contact John Lane at(209)838-9888 if you have any questions regarding this submittal. <br /> Respectfully, <br /> Ground Zero Analysis,Inc. <br /> 4 <br /> John P. Lane <br /> CA Registered Geologist No.6795 <br /> ae: Mr_Jeffrey Wong,San Joaquin County Environmental health Department <br /> Mr.Ray Baglietto/Mr.Frank Rauzi <br />