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io: SECOR From: Superior Analytical Laboratory 11-5-97 1:51pm P. 8 of 9 <br /> f <br /> Gasoline Range Petroleum Hydrocarbons and BTXE <br /> by EPA SW-846 5030/8015M/8020 <br /> Gasoline Range quantitated as all compounds from C6-CIO <br /> Quality Assurance and Control Data <br /> Laboratory Number: 23439 <br /> compound Sample SPK Level SPK Result Recovery Limits RPD <br /> creno. <br /> For Soil Matrix. (mg/kg) <br /> Da301.05 02 / 03 - Laboratory Control Spikes <br /> Gasoline Range 10 10/10 100/100 65-135 0 <br /> Benzene 0.100 0.093/0.088 93/88 65-135 6 <br /> Toluene 0.100 0.099/0.090 99/90 65-135 10 <br /> Ethyl Benzene 0.100 0.1.0/0.096 100/96 65-135 4 <br /> Total Xylenes 0.300 0.30/0.29 100/97 65-135 3 <br /> >( xrogate Recoveries (*) < <br /> Trifluorotoluene (SS) 92/81 50-150 <br /> For Water Matrix (ug/L) <br /> . Da302.37 03 / - Laboratory Control spikes <br /> Gasoline Range 2000 2000 100 65-1.35 <br /> Benzene 20 17 85 65-1.35 <br /> Toluene 20 17 85 65-135 <br /> Ethyl Benzene 20 17 85 65-135 <br /> Total. Xylenes 60 51 85 65-135 <br /> >7 Surrogate Recoveries (V) CC <br /> Trifluorotcluene (SS) 100 50-150 <br /> For Soil Matrix (mg/kg) <br /> DJ301. 05 04 / 05 - Sample Spiked: 23439 - 06 <br /> Gasoline Range ND 10 9.5/9.9 95/99 65-135 4 <br /> Benzene 0.085 0.100 0.17/0.14R 85/55 65-135 43 <br /> Toluene ND 0.100 0. 092/0.092 92/92 65-135 0 <br /> Ethyl Benzene 0.014 0.100 0.11/0.10 96/86 65-135 11 <br /> Total Xylenes 0.017 0.300 0.30/0.29 94/91 65-135 3 <br /> »( rrogate Recoveries (fir) <br /> 11—fluorotoluene (SS) 87/83 50-150 <br /> Zeproduction of this report is permitted only in its entirety. Page 5 of 6 <br />