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x <br /> 1551 industrial Road <br /> San Carlos.CA 94070-4111 <br /> S e quo is (650)232-9600 <br /> a FAX(650)2329612 <br /> Analytical - '°'""" u°' `°"' <br /> s <br /> Cettler-Ryan/Geostratepes(1) Project Unocal(3) Sampled. 11/21/00 <br /> 6747 Sierra Court,Suite J Project Number FORMER UNOCAL SS#0187 Received. 11/21/00 i <br /> Dubhn,CA 94568 Pro ect Manager Deanna Harding Reported. 1214/00 <br /> a ---- t ompou B <br /> e nt4- 000 Em <br /> o tin <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Anal _, ' Anal _ bevel -Result Y Result Units,r ., Recov Lmuts % s Limit % Nates* <br /> LCS 0110130-BS1 <br /> Meth 1 ter!-butyl ether 11/28/00 500 528 uEA 700-130 106 <br /> Surrogate 1,1 Dechloroethane-d4 it 500 471 " 760-114 942 <br /> LCS 0110130-BS2 <br /> Methyl tert butyl ether 11/30/00 Soo 561 119/1 700-130 112 , <br /> Surrogate 1,2 Ihchloroethane-d4 500 530 " s 760-114 106 <br /> Matrix Spike 0110130- 1 L011206-03 y " <br /> Methyl tort-butyl ether 11/28/00 500 ND 520 119/1 , 600-140 104 <br /> Surrogate 1,1-Dichloroethane-d4 ff Soo 514 - . 760-114 105 <br /> Marta Spike Dan 0110130-MSDl L011206&3 <br /> Methyl tert-butyl ether 11/28/00 _ -50 0 - ND 535 u 600-140 107 250 2.84 =` , <br /> -Surrogate -1,2-Dichloroethari"4 --- - - -- -50 0 - 518 -" -1 - 760-114 104 <br /> Batch- 011OLM Date Prepared: 11/29100 Extraction Methods_EPA 5030B IPM <br /> Blank 0110138-BLK2 <br /> Ethanal 11/29/00 ND ng/l 1000 - <br />=_= <br /> Methyl vert butyl ether " ND 2.00 ' <br /> Ethyl tert-butyl ether ND r 200 <br /> Tert-am 1 meth 1 et�ea ND ",-= ---- 2.00 <br /> Surrogate 1,1-Dlchloroethane-d4 500 471 760-114 942 <br /> LCS 0110138-BSI <br /> Methyl tert-butyl ether 11/29/00 500 448 u s 700-130 896 <br /> Surrogate 1,2-Dichloroethane-d4 ff 50 0 494 N 760-114 988 <br /> Matrix Spike � + , 0110138-MSI LL011206-10 - - ' <br /> Meth 1 tert-bu 1 ether 11/29/00 500 ND 446 ugII 600-140 - 89.2 <br /> Surrogate 1,2 Dlchloroethane-d4 Soo 491 760-114 981 <br /> Matrix Spike Du p 0110138-MSDI L911206-10 <br /> Methyl tert-butyl ether 11/29/00 500 ND 441 u 600-140 , 88.2 250 1.13 <br /> Surrogate 1,2 Dwhloroethane-d4 Soo 493 760-114 986 <br /> 0 <br /> Sequoia Analytical-San Carlos "Refer to end of report for text of notes and defiudons <br /> Page 18 of 19 <br />