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QUALITY CONTROL REPORT <br /> Matrix Spike/Matrix Spike Duplicate <br /> Method 8025 - Modified <br />�x <br /> LP# 6755 <br /> Analyst EB Batch # 921109-0302 <br /> Date Of Analysis 11/13/92 Spike Sample ID 6755-001 MSS #34 <br /> Column DB-1 Spike ID Code W2-1325 W2-1144 <br /> Instrument # PGC#4 Surrogate ID Code NA <br /> Matrix Soil Units <br /> (a) (b) (c) (d) {e} (f} (g) ACCEPTANCE <br /> LIMITS <br /> SAMPLE + SAMPLE SPIKE <br /> ' SAMPLE SPIKE SPIKE SPIKE DUP + DUP <br /> COMPOUNDS CONC CONC CONC REC % SPIKE CONC REC % RPD % REC RPD <br /> Gasoline 0 83 44 53 NA NA NA 40-94 25 <br /> Diesel 0 83 60 72 NA NA NA 50-121 c 25 <br /> Spike Recovery e d - ((c-a)/b) x 100 <br /> Spike Duplicate Recovery f - ((e-a)/b) x 100 <br /> Relative Percent Difference = g - ( ic-el )/((c+e) x 5) x 100 <br /> �J <br /> cafen sm <br /> HAI l <br /> ' ENVIRONMENTAL ENGINEERING CORPORATION OfcycWpaper <br />