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Entech Analytical Labs,Inc. 525 Del Rey Avenue,Suite E <br /> Sunnyvale,CA 94086 <br /> QUALITY CONTROL RESULTS SUMMARY <br /> METHOD: TOTAL RECOVERABLE PETROLEUM HYDROCARBONS <br /> QC Batch: STRP961101 Date Analyzed: 11/04/96 <br /> Matrix: Soil <br /> Units: m Kg <br /> PARAMETER MB € SA SR SP SP SPD SPD RPD QC LIMITS <br /> mg/Kg's mg/Kg me/Ka j mg/Kg € PR ma/Kg PR RPD - PR <br /> TRPH ; <50 ; 200 i 0.0; 150.i 75i y 174.i 87i ? 14.8; 25 ; ' 50-150 ; <br /> Definition of Terms: <br /> MB: Method Blank <br /> SA: Spike Added <br /> SR: Sample Result <br /> SP: Matrix Spike Result <br /> SP(PR): Matrix Spike%Recovery <br /> SPD: Matrix Spike Duplicate Result - <br /> SPD(PR): Matrix Spike Duplicate%Recovery <br /> RPD: Matrix Spike Recovery%Variance <br /> ' r . <br />