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Mr.Harlin Knoll Environmental <br /> 24 May 2999 <br /> Resources <br /> Page 3 Management <br /> - r <br /> Based on the results of this ground water:sampling event,. <br /> biodegradation is occurring at-each former,UST location at the site. <br /> Therefore, in accordance with the Investigation Results Report, ERM <br /> plans to implement enhanced biodegradation through the injection of <br /> oxygen releasing compound (ORC) at locations surrounding each former <br /> UST location. Following ORC injection, ERM will implement a ground <br /> water sampling program to monitor the biodegradation of TPH-g and <br /> BTEX in ground water at each former UST site, as described in the <br /> Investigation Results Report. <br /> ERM currently plans to perform ORC injection during the week of 7 June <br /> 1999. Please review the attached data and respond with any questions <br /> regarding the sampling results at (925) 946-0455. <br /> Sincerely, <br /> Matthew Brandy <br /> Project Manager <br /> MLB/mlb/3374.50 <br /> cc: Mr. Scott Krall, Heinz Pittsburgh, PA. <br /> Mr. Mark List,CVRWCB <br /> Ms. Margaret Lagorio, SJCEHD <br /> Mr..James F. Devenport, Crankbrook Group <br /> E <br /> 4 <br /> i <br />