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SMITH-EMERY COMPANY <br /> The Full Service Independent Testing Laboratory, Established 2904 <br /> nt Pest WashmW*n Boulevard • Lee Angeles.CaWamla 90001 • (213)749-3411 • Fax:(2U)746- <br /> P-0.Box t]WW Hunk 's Palm Shipyard Bldg,114 • San Fmndseo.Cal1kn%ia 941s8 • 7228 <br /> 3427 Ease U Palma Avenue (414)�+� • Fax:(n4)BQ2-jW4 <br /> • Anaheim.GWomi.97407 • (714)693-1026 . • F�1:(714)eRi-ICc)4 <br /> i� <br /> July 26, 1993 <br /> QUALITY CONTROL DATA <br /> MATRIX SPIKE AND DUPLICATE SPIKE <br /> l <br /> CLIENT: Aqua Geosciences <br /> FILE NO: 72461 <br /> REPORT NO: 31951744 <br /> MATRIX: Soil <br /> METHOD: EPA 8015M Diesel <br /> LAB NO: 3195174417 . <br /> BATCH NO: 31998015-1 <br /> SPIKE <br /> SAMPLE AMOUNT AMOUNT RECOVERY <br /> RESULTS SPIKED RECOVERED ACCEPTANCE <br /> PARAMETER (mg4sm) (mg/kg) (mg/kg) L-Z= RANGE(%) R.P.D. <br /> F; Diesel (Spike) 1000 362 1234 65 <br /> Diesel (Dup. Spike) 1000 333 1.232 70 62-140 7% <br /> a <br /> I <br /> i <br /> R.P.D. — Relative Percent Difference <br /> ND — None Detected <br /> f <br /> i <br /> I <br /> AL1.REPORTS ARE SUSp4rrMo Aa THE CONFIDENTIAL PROPERTY OF CUENTS.AUTMORIZATION FOR PUSLtCAT1QN OF OUR REPORT.CONCLUSIONS.OR Or- <br /> TRACT!FROM OR RLOARDINO TMgrI IS RESERVED PENOINQ OUR WRITTEN APPROVAL AS A MUTUAL PROTECTION TO CUMTS.THE PUSuC AND OURSELVES- <br /> . ` <br />