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1551 Industrial Road <br /> Sequoia C"907""' <br /> (650)232-9600 <br /> FAX(650)23Z-%l2 <br /> Analytical www seq` Cm <br /> Gelder-RYan/Gecstrategses(1) Project Unocal(3) Sampled 11/22/00 <br /> 6747 Sierra Court,Suite I Project Number FORMER UNOCAL SS#0187 Received 11/22/00 <br /> Dublm,CA 94568 Project Manager Deanna Hardmg 12/5/00 <br /> yg�b'a 8 u <br /> Date Sprite Sample QC Reporting Limit Recov RPD RPD <br /> L!wa Analyzed Level Result Result Units Recov Limits % Lumt °10 Notes' <br /> Batch: 0110124 Date Prepared- 11/27/00 Extraction Method: EPA 5030E FPM <br /> Blank 0110124-BL-I ^ <br /> Ethanol 11/27/00 ND ug/l 1000 <br /> Teat butyl alcohol ND " 100 <br /> Methyl tart-butyl ether ND " 2.00 <br /> D1-isopropyl ether ND 2.00 <br /> Ethyl tat-butyl ether ^ ND " 2.00 <br /> Teat-amyl methyl ether ND 2.00 <br /> Surrogate. I,2 Ihchloroethane-d4 Soo 562 ff 760-114 112 - - - - - <br /> LCS 0110124-BSI <br /> Methyl tit-butyl ether 11/27/00 500 542 ug/l 700-130 108 <br /> Surrogate. 1,2-Dichloroethane-d4 or Soo 554 " 760-114 Ill <br /> x SAW 0110124-MSI L011216-02 <br /> ethyl tert-butyl ether - 11/27/00 500 ND 539 ug/l 600-140 _ _10_8 <br /> Surrogate 1,2 Dichloroethane-d4 500 554 " 760-114 111 <br /> Matrix Spike Dnp 0110124-MSD L011216-02 <br /> Me!h 1 teat-butyl ether 11/27/00 500 ND 553 u 600-140 111 250 2.74 <br /> Surrogate 1,2 Dlchloroethane-d4 Soo 560 " 760-114 112 <br /> patch, 0110130 Date Prepared: 11/28/00 ExtractionMethod: EPA 5030E FP/Tl <br /> Blank 0110130-BLL ^ <br /> Ethanol 11/28/00 ND u9/1 1000 <br /> Tart-butyl alcohol " ND ^ 100 <br /> Methyl tat butyl ether " ND " 2.00 <br /> I),-Isopropyl ether ND " 2.00 <br /> Ethyl tat-butyl other " ND " 2.00 <br /> Tat amyl methyl ether " __ ND " 2.00 <br /> Surrogate. 1,2-DichlOmethane-d4 Soo 553 760-114- Ill - <br /> Blaak 0110130-BLK2 <br /> Ethanol 11/30/00 ND ug/l 1000 <br /> Tat-butyl alcohol ND 100 <br /> Methyl tent-butyl ether ^ ND 2.00 <br /> Dr-isopropyl ether ND 2.00 <br /> Ethyl tort-butyl ether ND 2.00 <br /> Tart-amyl meth 1 ether ND 2.00 <br /> Surrogate 1,2 Dichloroethane-d4 50 0 S2 8 " 76 D-114 106 <br /> Sequoia Analytical-San Carlos *Refer to end of reportfor text of notes and defimtions <br /> Page 20 of 23 <br />