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1551 industrial Road <br /> San Carim CA 94070-4111 <br /> Sequoia (650)232-9600 <br /> r FAX(650)232-96 12 <br /> www sequolala6s Com <br /> Analytical <br /> 3ettier-Ryaii/Geostrategies(1) Pro,�ect Unocal(1) Sampled 8131!00 to 911100 <br /> 5747 Sierra Court,Suite Y Protect Number' Forma Unocal SS#(0187) Received 911100 <br /> Project Manager Deanna Hardin R 9118!00 <br /> Dublin,CA 94568 <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br />�� Ani Level Result Result Units Recov Limits % Limit <br /> % Notes* <br /> Yte <br /> Batch- 0090032 Date Pre ared• 17100 Extraction Method- )EPA 5030B P <br /> Blank 0090032 BLKl 1000 <br /> 917100 ND u� <br /> Ethanol ND ++ 100 <br /> Tert-butyl alcohol ND 2,00 <br /> Methyl tert-butyl ether " ND „ 2.00 <br /> Di-isopropyl ether " ND „ 2.00 <br /> Ethyl tert-butyl ether „ ND n 2.00 <br /> Tert-amyl methyl ether „ 47 3 760-114 946 <br /> Surrogate 1,2-Dichloroethane-d4 Soo <br /> LCS 0090032-BS1 <br /> 9!7/d0 Soo <br /> 564 Ug! 70 0-130 113 <br /> Methyl tert-butyl ether S2 g " 76 0-114 106 <br /> Su ate 1,2-Dichloroethane-d4 " 500 <br /> 14 x gSDike 0090032 AM L009012-02 600-140 110 <br /> Methyl tat-bu 1 ether 9/7/d0 500 ND 8 7 u <br /> Surrogate 1,2 Dd4 ichloroethane- <br /> „ 500 <br /> 48 7 76 0-114 97 4 <br /> Matrix Spike Ouip 0090032-MSD L009 <br /> 012-02 Methyl tert-butyl ether 917100 Soo ND 429 UO60 4-140 85 8 25 0 24.7 <br /> Surrogate 1,2-Dichloroethane-& <br /> 50 0 <br /> „ 401 760-114 80 2 <br /> Batch: 0090034 Date Pre are - 7100 Extraction Method: EPA 5030B Wn <br /> AL42th 0090034-BLKl 1000Ethanol 917/00 ND ug/l <br /> 1VI) 100 <br /> Tert-butyl alcohol " ND n 2,00 <br /> Methyl tert-butyl ether " ND „ 2.00 <br /> Di-isopropyl ether " ND „ 2.00 <br /> Ethyl tert-butyl ether " ND n 2.00 <br /> Tent-amyl methyl ether " 531 " 760-114 106 <br /> surrogate 1,2-Dichloroethane-& 500 <br /> Blank 0090034-BLK2 1000Ethanol 918100 ND u� <br /> ND " 100 <br /> Tertbutyl alcohol ND 2,00 <br /> Methyl tort-butyl ether " ND n 2.00 <br /> Di-isopropyl ether " ND " 2.00 <br /> Ethyl tett-butyl ether " ND n 2.00 <br /> Tert-amyl methyl ether „ 455 „ 760-114 910 <br /> S gate 1,2 Dichloroethane-d4 " SO 0 <br /> *Refer to end of reportfor text of notes and definitions <br /> Sequoia Anaiyhca1-San Carlos <br /> Page 16 of 19 <br /> .R7. <br />