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Er SMITH-EMERY COMPANY <br /> The Full Service Independent Testing Laboratory. Established 1904 <br /> 781 Fast Washingtoa 9ouIevard • Los Angeles,GUtornla 900ZI a <br /> P.O.Bw186034Q.#Hunters Point ShiPyard Bldg.114 s San Frane#sec, (Y13}749341 i • Fax;(213)74&1228 <br /> 5127 East La Palma Avenue • Catl(omin 94186 a (415)330.30M • Fax:(41S)822.5964 <br /> t� Anaheim.C&Womla 97@07 • (714)693-1026 • Fax:(714)693-1034 <br /> C <br /> July 26, 1993 <br /> I <br /> Quality Control Report <br /> Matrix Spike and Duplicate Spike <br /> Client: Aqua Geosciences I <br /> File .No: 72461 <br /> Report No: 31951744 + <br /> Matrix: Soil <br /> Method: EPA 8020 <br /> Lab No: 3200053329 <br /> Batch No: 32008020-1 <br /> SPIKE <br /> SAMPLE AMOUNT AMOUNT RECOVERY <br /> RESULTS SPIKED RECOVERED _ACCEPTANCE <br /> .. {tig/kgZ (ug/kg} (ug/km)_ RANGE(J) R.P.D. <br /> t Benzene (S) ND 155 121 78 <br /> t Benzene (DS) ND 160 133 83 64-125 6% <br /> Toluene (S) 10 155 121 72 . <br /> Toluene (DS) 10 160 137 79 70-118 10% <br /> Ethyl Benzene (S) ND 155 131 85 <br /> Ethyl Benzene (DS) ND 160 147 92 70-121 8% <br /> Xylene (S) ND 465 392 84 <br /> Xylene (DS) ND 480 441 - 92 67-126 9% <br /> I <br /> S — Spike <br /> DS — Duplicate Spike <br /> R.P.D. — Relative Percent Difference <br /> ND — None Detected # <br /> ALL R[PORTS M[SUSMiTT[O AS TN[CONFIpiNTIAL Hlpr[RTY OF CLI[NTS,AUT'"ORIZATION FOR PUBLICATION O/OUR R[PORT.CONCLUSIONS,pR C%' <br /> TRACTS FROM OR R[OAR01NG rm W 15 RZ3 RV[0 PCMC'Me OUR WRITTEN APPROVAL AS A MUTUAL PROT[CTION TO CUCMTs.TN[PUBLIC AND OURS[LV= PF <br />