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i <br /> '"E TOTAL RECOVERABLE PETROLEUM HYDROCARBON <br /> TWINING <br /> STANDARDMATRIX SPIKE <br /> ��20P <br /> EST. L A 0 R A T V ^: { v S Fi _ <br /> reEstdo/ oo�s.o/viSAL�a�aereRsrE--/s,at�nas QUALITY CONTROL REPORT <br /> Analyzed By: John Aguirre Reviewed By: S.SHARMASARKAR,Ph.D. <br /> Date of Extraction:2126103 Date of Analysis: 2126103 <br /> Twining Laboratories, Inc. Run ID Number: TLIR022603 Sample Matrix: Soil Sample 70300847.1 <br /> Spike ID:WS 1832 <br /> Constituent Matrix Sample Matrix Spike Matrix Spike Matrix Spike Acceptable Matrix Spike Matrix Spike Relative <br /> Concentration Concentration Recovery Duplicate Percent Percent Duplicate Percent <br /> (mg/kg) Level (mg/kg) Recovery Recoven, Recovery Percent Difference <br /> (mg/kg) (mg/kg) Range (/G) Recovery (%) <br /> Low Hialt <br /> TRPH 0.0 500 551 551 70 130 110% 110% 0.00 <br /> EXPLANATIONS: <br /> ND Non-Detectable;the target analyte was not found above the detectable limit for reporting purposes(DLR). <br /> mg/kg milligrams per kilogram,parts per million(ppm)concentration units <br /> Matrix Sample: The matrix sample is the sample chosen for use in the matrix spike analyses. <br /> Matrix.;pike: A matrix spike is venerated by adding the target analyte(s)into the sample noted above. The matrix spike sample is <br /> analyzed exactly like a regulas�sample,and its purpose is to detersnme whether the sample matrix has a measurable <br /> effect on precise and accurate analyte detection and quantification. <br />