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Sequoia <br /> eq �O7 a &I9 Sinker Avenue Suite S <br /> L �i 1 Sacramento, CA 95$34 <br /> (916) 921-9600 <br /> Analytical FAX(916)921-0100 <br /> FAX <br /> sequolalabs corn <br /> Stratus Environmental Project ARCO 2106, Stockton,CA Sampled 9127100 <br /> 3330 Cameron Park Drive, Ste 550 Project Number N/A Received 9/29/00 <br /> Cameron Park,CA 95682 Project Manager Iay Johnson Reported 10/I0/00 <br /> •y4y-M, '1��r �f�Ll�•c : _ <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch 0100005 Date Pre ared 1016/00 Extriction Method EPA 5030B P/T <br /> Blank 0100005-13LKI <br /> Tert-butyl alcohol 1016/00 ND ug/l 200 <br /> Methyl tent-butyl ether ND 1. 200 <br /> Di-isopropyl ether ND 200 <br /> Ethyl tert-butyl ether ND 200 <br /> Tert-amyl methyl ether ND 40 <br /> Ethanol ND 2 200 <br /> I,2-Dichloroethane 11ND2 00 <br /> Surrogate 12-DCA-d4 Soo 474 60 0-140 948 <br /> LC--S 0100005-BSI <br /> Methyl tert-butyl ether _ 10/6/00 500 556 ug/1 600-140 111 <br /> Surrogate 1,2-DCA-d4 500 494 11 600-140 988 <br /> MW,CS Dup 0100005-BSDI <br /> 111&4ethyl tert-butyl ether 1016/00 500 564 ua/l 600-140 113 250 179 <br /> Su ^ogate 12-DCA-d4 ,, 50 0 522 600-140 104 <br /> Matrix Spike 0100007-MS1 5009395-01 <br /> Methyl tert-butyl ether 10/6/00 500 222 600 ua/l 600-140 116 <br /> Surrogate 1,2-DCA-d4 50 0 518 N 600-140 104 <br /> Matrix Spike Dup 0100005-MSDI 5009395-01 <br /> Methyl tert-butyl ether 1016100 500 222 592 ua/1 600-140 114 250 174 <br /> Surrogate 12-DCA-d4 500 506 11 600-140 101 <br /> Batch 0100027 Date Prepared 10/9/00 Extraction Method .EPA 5030E CP/TI <br /> Blank 0100027-BLKI <br /> Tert-butyl alcohol 10/9/00 ND ug/1 200 <br /> Methyl tert-butyl ether ND 200 <br /> Di-isopropyl ether " ND 200 <br /> Ethyl tert-butyl ether ND 2 00 <br /> Tert-amyl methyl ether ND 2 00 <br /> Ethanol " ND 200 <br /> 1,2-Dichloroethane ND2 00 <br /> Surrogate 12 DCA-d4 SO 0 496 60 0-140 99 2 <br /> LCS 0100627-BSI <br /> Methyl tert-butyl ether I019100 500 514 ug/I 600-140 103 <br /> Surrogate I,2-DCA-d4 11 --- <br /> 500 492 1160 0-140 984 w <br />�Uma Analytical-Sacramento *Refer to end ofreport for text of notes and definitions <br /> Page 7 of 9 E <br />