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n � <br /> 885 Jams Dr <br /> Sequoia Morgan Hill,CA 95037 <br /> ,:D (408)776-9600 <br /> iW Analytical FAX(408)782-63M <br /> www seaumalabs crillik <br /> Secor-Rancho Cordova Project ARCO#4932,Stockton,CA MMB0227 <br /> 3017 Kilgore Rd Suite 100 Project Number ARCO#4932,Stockton,CA Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty Benkosky 02/25/03 11 03 <br /> Total Purgeable Hydrocarbons (C6-C10) by EPA 8015B modified, BTEXM by EPA 8021B -Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 3B12002-EPA 5030B JP/TI <br /> _Matnx Spike(3B12002-MS1) Source MMB0145-05 Prepared 02/12/03 Analyzed 02/13/03 <br /> Gasoline Range Organics(C6-C 10) 416 50 ug/l 550 ND 756 62-134 <br /> Benzene 904 050 680 ND 133 68-140 <br /> Toluene 334 050 410 ND 815 76-127 <br /> Ethylbenzene 847 050 980 ND 864 77-130 <br /> Xylenes(total) 409 050 479 ND 854 78-128 <br /> Surrogate a a a-Trruorotoluene 109 100 109 55-142 <br /> Matnx Spike Dup(3B12002-MSD1) Source MMB0145-05 Prepared 02/12/03 Analyzed 02/13/03 <br /> Gasoline Range Organics(C6 C10) 418 50 USA 550 ND 760 62-134 0 480 41 <br /> Benzene 894 050 680 ND 131 68-140 1 11 30 <br /> Toluene 333 050 410 ND 81 2 76-127 0 300 30 <br /> Ethylbenzene 852 050 980 ND 869 77-130 0 569 21 <br /> Xylenes(total) 410 050 479 ND 856 78-128 0 244 21 0 <br /> Starogate a a a-Tr fluorotoluene 110 100 110 55-142 <br /> Batch 3B12003-EPA 5030B PIT <br /> Blank(313112003-BLK1) Prepared&Analyzed 02/12/03 <br /> Gasoline Range Organics(C6-C 10) ND 50 ug11 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene 0 558 050 Q-I9 <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a a a-Trtjluorotoluene 884 100 884 55-142 <br /> Laboratory Control Sample(3B12003-BSI) Prepared&Analyzed 02/12/03 <br /> Benzene 794 050 ug/l 100 794 68-140 <br /> Toluene 821 050 100 821 76-127 <br /> Ethylbenzene - --- -__- -- _=8 74— <br />