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Environmental <br /> Mr Harlin Knoll Resources <br /> 21 September 1998 Management <br /> 1,600 �ig/l and all BTEX compound concentrations have decreased to non- <br /> detectable concentrations except xylenes which have decreased to 16 µg/l <br /> Based on the decreased concentrations of TPH-g and BTEX, and the low <br /> concentrations from the 10 September 1998 sampling event, ERM believes that no <br /> further action is required at the site Therefore, ERM, on behalf of Heinz, <br /> requests that the site be closed <br /> If you have any questions regarding please call me at (925) 946-0455 <br /> Sincerely, <br /> Matthew L Brandy <br /> Project Engineer <br />. MLB/mb/3374 <br /> Enclosure <br /> cc Mr Scott Crall, Heinz, Pittsburg <br />