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I885 Jarvis Drive <br /> 4 a- ) Sequoia Morgan Hill CA 95037 <br /> (408)776-9600 <br /> Analytical FAX(408) 782-6308 <br /> a—up <br /> ETIC Engineering Inc-WC Exxon Project Exxon Sampled 8/20/99 <br /> 144 Mayhew Way Project Number 7-3942 Received 8/23/99 <br /> Walnut Creek,CA 94596 Project Manager Chris Chatburn Reported 9/1/99 <br /> l 1 'Sequoia Analytical,-Morgan Hill' <br /> Date Spice Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Anal zed Level Result Result Units Recov Limits % Limit % Notes* <br /> Matrix Spike pun(continued) 90809_36-MSD19080799_02 <br /> Surrogate aaa-Trefluorotoluene $/26/99 loo 20 4 ug/! 700-130 204 2 <br /> Batch 9080973 Date Prepaned 8127199 Extraction Method EPA 5030B ]P/T] <br /> Blank 9080973-B L K 1 <br /> Purgeable Hydrocarbons 8/27199 ND ug/1 Soo <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br />' Xylenes(total) '' ND 0 500 <br /> Mcthyl tort-butyl ether ND 250 <br /> Surrogate a a a-Trefluorwoluene 100 103 700-130 103 <br />' 9080973-BSI <br /> ezenc 8/27/99 100 9 77 ug/1 70 0-130 97 7 <br /> Toluene too 101 700-130 101 <br /> Ethylbenzene 100 934 700-130 93 4 <br /> Xylenes(total) 300 28 7 700-130 95 7 <br /> Surrogate o a a-Trifluorololuene too Ion 700-130 100 <br />' Matrix Spike 9080973-MSI 9080799-03 <br /> B0117CIlC 8/27199 too ND 939 U01 600-140 939 <br /> rolucnc, too ND 908 600-140 908 <br /> Ethylben7em. 100 ND 9 16 000-140 91 6 <br /> XylLnc5(total) 300 ND 272 600-140 90 7 <br /> Sw rogate aaa-Trifluorotoluene 1 o 0 104 700-130 104 <br /> IMatrix Spike Dup 9080973-MSDI 9080799-03 <br /> 13c.n/c,n� 8/27/99 too ND 942 ug/I 600-140 942 250 0 319 <br /> 3 oluene too ND 993 600-140 993 250 894 <br /> Ethylbenzene too ND 896 600-140 89 6 250 221 <br /> IXylencs(total) 300 ND 276 600-140 920 25 0 1 42 <br /> Surrogate aaa-Trifluoi otoluene 100 996 700-130 996 <br /> IBatch 9081018 Date Prepared 8130/99 Extraction Method FPA 50308 IP17 I <br /> Blank 9081018-BLKI <br /> Purgeable I iydrocarbons 8/30199 ND ug/l 500 <br /> Benzene ND 0 500 <br /> IToluene ND 0 500 <br /> Ethylbenzene ND 0 500 <br /> &enes(total) ND 0 500 <br /> thyl tert-butyl ether ND 2 50 <br /> Sequoia Analytical-Morgan Hill *Refer to end of report for test of notes and ddiinetrons <br /> IPage 6 of 9 <br />