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N <br /> 819 Striker Avenue Suite 8 <br /> D <br /> Sequoia Sacramento, 95834(916))9 9Z1-96009600 <br /> I Analytical FAX(916)921-0100 <br /> www sequoia 1--- <br /> SECOR International-Rancho Cordova Project ARCO 2093,Tracy,CA ` <br /> 3017 Kilgore Road,Suite 100 Project Number NIA Reported <br /> Rancho Cordova CA,95670 Project Manager Rusty BBenkt,osk7y��( T 77��+ 09/28/01 16 24 <br /> T..�..1 1prr". nn�.ln YYy rlrnnnr v^�RTa�rX a,:u M i BEE by DHS L TF A -Quality <br /> �vu�ivi <br /> 1 Vd-RI 1 Yl 161{- 11 NJi VrNR <br /> Sequoia Analytical- Sacramento <br /> Reporting Spike Source %REC RPR <br /> Analyte Result Limit Units level Result %RFC Limits RPD limit Notes <br /> Batch 1090213-EPA 5030E(PIT) <br /> Blank(1090213-BLK1) Prepared&Analyzed 09/19/01 <br /> Purgeable Hydrocarbons ND 50 u9/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> EthyIbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert-butyl ether ND 25 " <br /> Surrogate a a a-Trifluorotoluene 920 10 0 920 60-140 <br /> LCS(1090213-BS1) Prepared&Analyzed 09/19/01 <br /> Benzene 109 0 50 ugll 10 0 109 70-130 <br /> Toluene 101 0 50 " 10 0 101 70-130 <br /> Ethylbenzene 9 87 0 50 10 0 98 7 70-130 <br /> Xylenes(total) 304 0 50 30 0 101 70-130 <br /> Methyl tert-butyl ether 101 25 " 10 0 101 70-130 <br /> Surrogate a a a-Trifluorotoluene 108 10 0 108 60-140 <br /> M_atnx Spike(1090213-MSI) Source S109227-02 Prepared&Analyzed 09/19/01 <br /> Benzene 13 1 0 50 u8A 10 0 1 3 118 60-140 <br />— ---Toluene ---- --14 9 -0 50 "�---10 0— 3 7- 1 12 =60=140 = <br /> Ethylbenzene 15 1 0 50 10 0 44 107 60-140 <br />-- X9lenes(t`otal)- --- ------ -- —----40 7— - —-0 50-- —"— --30 0—__-8 4 108�60-140-- - -- ------- --- <br /> Methyl tert-butyl ether 13 0 25 100 ND 130 60-140 <br /> Surrogate a s a-Trtfluorotoluene 166 100 166 60-140 S-02 <br /> Matrix Spike Dup(1090213-MSD1) Source S109227-02 Prepared&Analyzed 09/19/01 <br /> Benzene 139 0 50 ugtl 100 1 3 126 60-140 593 25 <br /> Toluene 14 6 050 10 0 3 7 109 60-140 2 03 25 <br /> Ethylbenzene 16 3 050 10 0 44 119 60-140 764 25 <br /> Xylenes(total) 45 8 050 30 0 84 125 60-140 . 1 1 8 25 <br /> Methyl tert-butyl ether 14 4 2 5 10 0 ND 144 60-140 102 25 S-04 <br /> Surrogate a s a-Trtfluorotoluene 170 100 170 60-140 S-02 <br /> Sequoia Analytical-Sacramento The results in this report apply to the samples analyzed in accordance with the chaff <br /> of custody document This analytical report must be reproduced to its entire <br /> Page Page 11 of 13 <br />