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•� .�. i ii; `. r. i.i f <br /> Superior <br /> Analytical Laboratory <br /> Gasoline Range Petroleum Hydrocarbons and BTxE <br /> by EPA SW-846 5030/8015M/8020 <br /> Gasoline Range quantitated as all compounds from C6-C10 <br /> Quality Assurance and Control Data <br /> Laboratory Number: 20886 <br /> Compound Sample SPK Level SPK Result Recovery Limits RPD <br /> conc. g ' <br /> For Soil. Matrix (mg/kg) <br /> CB091 A S 02 / - Laboratory Control Spikes <br /> Benzene 0.200 0.21 105 65-1.25 <br /> Toluene, 0.200 0.21 105 65-125 <br /> Ethyl. Benzene 0.200 0.21 105 65-125 <br /> Xylenes 0.600 0.65 108 65-'125 <br /> » Surrogate Recoveries ( ) <br /> T3rifluorotoluene (qS) 95 50-150 <br /> For Soil Matrix (mg/kg), <br /> CBi21.05 02 / 04 - Laboratory Control Spikes - <br /> Benzene 0.200•, 0:22/0.22 - 110/110 65-125 0 <br /> Toluene 0,200 . 0.22/0.23 110/115 65-1.25 0 <br /> Ethyl Benzene 0.200 0.22/0.22 11.0/110 65-1.25 0 <br /> Xylenes 0.600 0.66/0.67 11.0/112 65-125 2 <br /> >> Surrogate Recoveries (t) c< <br /> Trifluorotoluene (SS) 102/100 50-150 <br /> For Soil Matrix (mg/kg) <br /> CB091.05 03 / - Laboratory Control Spikes <br /> Gasoline—Range 20 '20 100 65-135 <br /> For Soil Matrix (mg/kg) <br /> CB121.05 03 / - Laboratory Control Spikes <br /> i <br /> I <br /> Gasoline—Range 20 19 95 65-135 <br /> Page 7 of 9 <br />