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ALCCENTRumANALYTICAL LABORATORIES, INC. <br /> CERTIFIED HAZARDOUS WASTE TESTING LABORATORY • CHEMICAL AND BIOLOGICAL ANALYSES <br /> Client: CRC Environmental Date Sampled: 11/30/94 <br /> Project: Stockton Air Metro Date Received: 1211/94 <br /> Job Number: 7427 Date Analyzed. 12/2,8,9/94 <br /> Analyst: SD Batch Number: 8270SO138,9 <br /> EPA Method 8270 <br /> The enclosed data results sheets are for samples that were analyzed according to EPA Method 8270. <br /> The samples were analyzed by an HP 5890, equipped with an HP 591 A MSD. <br /> The following data reporting qualifiers are used on the data results sheets. <br /> VALUE: If the result is a value greater than or equal to the detection limit (DL), the value is reported. <br /> ND: Indicates that the compound was analyzed for but not detected. The minimum DL for the <br /> sample with the ND is reported based on necessary concentration or dilution actions. <br /> TR: Indicates an estimated value. This flag is used when the mass spectral data indicates <br /> the presence of a compound that meets identification criteria, but the result is less than the <br /> specified DL, but greater than zero. <br /> NA: Indicates that the compound was not analyzed for. <br /> Respectfully submitted, <br /> CENTRUM L l L LABORATORIES <br /> CENTRUM <br /> R. Clark, Ph.D. <br /> Laboratory Director <br /> 290 TENNESSEE STREET • REDLANDS, CA 92373 (909) 798-9336• (800) 798-9336 FAX(909) 793.1559 <br />