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• <br />CASE NARRATIVE <br />Prepared For: <br />Bob Cochran <br />Chevron Products Company <br />6001 Bollinger Canyon Road <br />Building L <br />F'.O_ Box 6004 <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 787778. Samples arrived at the laboratory <br />on Tuesday, November 27, 2001. <br />METHODOLOGY <br />The specific methodologies used in obtaining the enclosed analytical results are <br />indicated on the laboratory chronicles. <br />COMMENTS <br />The MW -8B, MW -7A, MW -7B, MW -19C and MW -10A vials from Facility 95775 <br />submitted for the BTE)C + Oxygem�Ies b 8260 analysis did not have a pH < 2 at <br />the time -of the analysis. Die to the vo atsle nature of the analytes, it is not <br />appropriate forthe laboratory to adjust _:.e pH at the time of sample receipt. <br />The MW -8S and MW -20B vials from Facility 95775 submitted for the BTEX/MTBE, <br />TPH-GRO and BTEX + -Oxygenates by 8260 analysis did not have a pH < 2 at the <br />time of analysis. Due to the volatile nature of the analytes, it is not appropriate <br />for the laboratory to adjust the pH at the time of sample receipt. <br />