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r •FRIEDNIAN & BRUYA, INC. <br /> ' ENVIRONMENTAL CHEMISTS <br /> Date of Report: 09/29/98 <br /> Date Received: 09/15/98 <br /> Project: 4780.01 <br /> QUALITY ASSURANCE RESULTS <br /> FOR THE ANALYSIS OF WATER SAMPLES FOR TOTAL EXTRACTABLE <br /> PETROLEUM HYDROCARBONS BY GC/FID (MODIFIED 8015) <br /> i <br /> Laboratory Code: Laboratory Control Sample <br /> ' Relative <br /> Reporting Spike %Recovery %Recovery Acceptance Percent <br /> Analyte Units Level LCS LCSD Criteria Difference <br /> Diesel µg/L(ppb) 2,500 117 99 55.142 17 <br /> Laboratory Code: Laboratory Control Sample Silica <br /> Relative <br /> Reporting Spike %Recovery %Recovery Acceptance Percent <br /> Analyte Units Level LCS LCSD Criteria Difference <br /> ' Diesel µg/I.(ppb) 2,500 107 104 55-142 3 <br /> 1 <br /> 1 <br /> i <br /> i <br /> 1 <br /> 1 <br />