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fi 1551 Industdal Road <br /> San Carlos,CA 94070-4111 <br /> Sequoia _ <br /> (650)232-9600 <br /> FAX(650)232-%12 <br /> Analytical '"'"'" "o`a' c°' � <br /> 1 1r <br /> � v , <br /> Gettler-RyWGeostratepes(l) Project Unocal(1) Sampled 8/31/00 to 9/1/00 <br /> 6747 Sierra Court,Suite J Project Number Former Unocal SS#(0187) Received 9/1100 <br /> Dublin,CA 94568 4 project Manger Deanna Hardin R 9118100 <br /> mffWmIIJ�� r�be2 3 B' °Q. <br /> D� _ u <br /> MnQ. � � <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> ,Analyte _ - Analyzed Level Result Result Units Recov Lmnuts % Limit % Notes* <br /> Blank(continued) 0090066-BLK1 <br /> Methyl tert-butyl ether 9113/00 ND ug/l 5.00 <br /> Surrogate a,a,a-Tnfluorotoluene 10 0 119 700-130 119 <br /> LCS 0090066-BS1 <br /> Benzene 9113/00 ' 100 115 ug/l 70 0.130 115 <br /> Toluene 100 b 113 700-130 113 <br /> Ethylbenzene " 100 112 700-130 112 <br /> Xylenes(total) " i`- 300 34 1 " 70 0-130" 114 <br /> Surrogate a,a,a-Tnfluorotoluene 100 110 700-130 110 <br /> LES 0090066-BS2 <br /> Purgeable Hydrocarbons as Gasoline 9113100 250 213 uyA 700-130 852 <br /> Surrogate a,a,a-Trtfluorotoluene 100 109 " _ 700-130 109 r <br /> Matrix Spike- 0090066-MSl '}L009012-05 - - _ _ _ _ • <br /> Purgeable Hydrocarbons as Gasoline 9113100 250 ND 253 ug/l <br /> 60 0-140 101 <br /> Surrogate a,a,a-Tnfluorotoluene 100 12 0 " 700-130 120 <br />- Matrix SalkeDoo��--=- -==-=00900b6-MSD1__�L009012-05 <br /> Purgeable Hydrocarbons as Gasoline 9/13/00 250 ND 251 ug/l� 600-140 100 250 0.995 <br /> Surrogate-a,a,a-Tnfluorotoluene----- "w- � 10 0 _ _ _ 113 �_ 700-130 113 <br /> Batch 0090067 - Date Prepared:-9/13100 _ __ Extraction Method: EPA 5030B Wn - <br /> Blank 0090067-BLKI <br /> Purgeable Hydrocarbons as Gasolme 9113/00 ND U94 50.0 <br /> Benzene- _ ND 0.500 <br /> Toluene ND `" 0.500 <br /> Ethylbenzene " ND 0-1500 <br /> Xylenes(total) ND " 0.500 <br /> Methyl tert-butyl ether ND " 5.00 <br /> Surrogate a,a,a-Tnfluorotoluene 100 9 75 700-130 975 <br /> i <br /> LCS 0090067-BSl <br /> Benzene 9/13100 100 t03 ug/1 70 0-130 103 <br /> Toluene 100 9 83 " 700-130 983 <br /> Ethylbenzene 100 101 " 700-130 101 <br /> Xylenes(total) 300 310 700-130 103 <br /> Surrogate a,a,a-Trifluorotoluene ff 100 103 700-130 103 <br /> .CS 0090067-M2 <br /> Purgeable Hydrocarbons as Gasoline 9113100 250 258 ug/l 70 0-130 103 <br /> Sequoia Analytical-San Carlos *Refer to end of report for text of notes and definitions <br /> Page 13 of 19 <br />