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1 <br /> CASE NARRATIVE <br /> U <br /> Prepared For: <br /> Bob Cochran <br /> Chevron Products Company <br /> 6001 Bollinger Canyon Road <br /> Building L <br /> P.O. Box 6004 i <br /> San Ramon,-CA 94583-0904 <br /> Prepared By: <br /> Lancaster Laboratories <br /> 2425 New Holland Pike <br /> Lancaster, PA 17605-2425 <br /> SAMPLE GROUP <br /> The sample group for this submittal is 793154. Samples arrived at the laboratory <br /> on Saturday, January 12, 2002. <br /> METHODOLOGY <br /> The specific methodologies used in obtaining the enclosed analytical results are <br /> indicated on the laboratory chronicles. <br /> COMMENTS <br /> The CPT-4-73, CPT-5-66 and CPT-10-73 vials from Facility 208118 submitted for <br /> the TPH-GRO analysis did not have a pH < 2 at the time of the analysis. Due to <br /> the volatile nature of the analytes, it is not appropriate for the laboratory to <br /> adjust the pH at the time of sample receipt. <br />