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Sequoia 1551 Industnal Road <br /> San Carlos CA 94070.4111 <br /> (650)232-9600 <br /> Analytical FAX(650)232-9612 <br /> Sequoia-Morgan Hill Project Blainc/EQUIVA Sampled 9/13/99 <br /> 885 Jarvis Drive Project Number M909581/341 East Main St,Ripon Received 9/21/99 <br /> Morgan Hill,CA 95037 - — Project Manager =Kayvan Kim ai= _ - - _ ---Reported =10/1/99 <br /> air �r^�sgv", ��,+u -^ ar�sr+;^r.,^ +xis rt.-^r--»" s�+,rsassa a'^ruTm^ z^°^-r^� •:,�:,.."",� <br /> s b EPA�ethot�82G0A1 ual>< Control ���''`"-"'� <br /> Date Spike Sample QC Reporting Limit Recov RPD RFD <br /> Anal a Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Blank 9090114-BLK3 <br /> Ethanol 9/29/99 NDug/l 1000 <br /> Tert-butyl alcohol " ND " 200 <br /> Methyl tert-butyl ether ND to 200 <br /> Di-isopropyl ether ND it 200 <br /> Ethyl tert-butyl ether ND 1. 200 <br /> Tert-amyl methyl ether ND 200 <br /> Surrogate 1,2-Dichloroethane-d4 500 478 76 0-114 956 <br /> LCS 9090114-BS1 <br /> Methyl telt-butyl ether 9/23/99 500 462 ug/l 700-130 924 <br /> Surrogate 1,2-Dichloroethane-d4 500 552 760-114 110 <br /> LCS 9090114-BS2 <br /> Methyl tert-butyl ether 9/23/99 500 401 ug/1 700-130 802 . <br /> Surrogate 1,2-Dichloroethane-d4 rF500 492 760-114 984 <br /> LCS 9090114-BS3 <br /> Methyl tert-butyl ether 9/29/99 500 403 119/1 700-130 806 <br /> Surrogate 42-Dichloroethane-d4 " 500 4993—7998 <br /> Matrix Spike = 9090114-MS1 L909191-02 <br /> Methyl tert-butyl ether 9/23/99 500 396 746 ug/1 600-140 700 <br /> Surrogate 1,2-Dichloroethane d4 500 935 760-114 107 <br /> Matrix Spike Dva 9090114-MSD1 L909191-02 <br /> Methyl tert-butyl ether 9/23/99 500 396 784 ug/l 600-140 776 250 103 <br /> Surrogate 11-Dichloroethane d4 500 535 76 0-114 107 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 8 of 9 <br />