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CALTECH Environmental Laboratories <br /> 6814 Rosecrans Avenue. Paramount, CA 90723-3146 <br /> Telephone: (562) 272-2700 Fax: (562) 272-2789 <br /> QA/QC Report <br /> Method: 8015M <br /> Matrix: Water <br /> Date Analyzed: 9/13/05 <br /> Date Extracted: 9/13/05 <br /> Perimeters Conc. ug/L Spike Recovery % Control Limits RPD <br /> LCS LCSD Added LCS LCSD Rec. RPD <br /> TPH - Gasoline 1036 1080 1000 104 108 70-130 20 4 <br /> Perimeters Method Units Det. <br /> Blank Limit <br /> TPH - Gasoline ND ua/L 50 <br /> LCS: Laboratory Control Standard <br /> LCSD: Laboratory Control Standard Duplicate <br /> RPD: Relative Percent Difference of LCS and LCSD <br /> -- - - TOTALLY DEDICATED "h ) CUSTOMER SATISFACTION <br />