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Wiget <br /> Sequoia Walnut r� 98 <br /> q , (925)968-96W <br /> FAX(925)988-9673 <br /> 1%W Analytical --- - <br /> Gettler Ryan,lnc -Dublin Project Unocal <br /> 6747 Sierra Court Suite j Project Number Unocal#8671 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 21-Dec-00 09 23 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT- Quality Control <br /> ~ Sequoia Analytical,-Walnut Creek r <br /> Reportwg Spike Source %REC RPD <br /> Analyte Result Lumt Units Level Result %REC Lirmts RPD Lunt Notes <br /> Batch OL08002-EPA 5030B 1P11'j <br /> Blank(OL08002-BLK1) Prepared&Analyzed 08-D c-00 <br /> Purgeable Hydrocarbons ND 50 ug4 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> � r <br /> Ethylbe zene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl tert butyl ether ND 25 " <br /> Surrogate at a,a-T nfluorotoluene 314 300 105 70-130 <br /> LCs(OL08002-BSI) Prepared&Analyzed 08-Dec-00 <br /> Benzene 165 050 ug/1 200 925 70-130 <br /> Toluene 16 9 050 200 945 70-130 <br /> Ethylbenzene 175 050 f'W " 200 875 70-130 <br /> Xylenes(total) 529 050 600 882 70-130 <br /> Surrogate qa;a-TnfIuorotohmne 165 t 300 8x3 70-130 <br /> Matrix Spike(OL08002-MS;) Source W012066-03 Prepared&Analyzed 08-Dec-00 <br /> Benzene- 186 _ _0 SO _ ug/1 200 ND 930 70-130 <br /> Toluene 183 050 200 ND 91 5 70-130 <br /> Ethylbenzctne _. --18.3-050-- —ND ----. 91 5-70-130.x., <br /> Xylenes(total) TT T 545 050 600 ND 908 70.130 <br /> Surrogate 4a•a-T}rfluorotohiet3e- - - 195 - 30.0--- - 98.3 70.130 <br /> Matra Spike Dup (OL08002-MMM) Source W012066-03 Prepared&Analyzed 08-Dec-00 <br /> Benzene 196 0 50 ug/1 200 ND 980 70-130 524 20 <br /> Toluene 191 050 200 ND 95 5 70-130 428 20 <br /> Ethylbenzene 190 050- ,20 0 ND - 95 0 70-130 3 73 20 - y <br /> Xylenes(toial) 561 0 50 600 ND 935 70-130 289 20 <br /> Surrogate aaa-TYrfluorotoluene 305 " 300 102 70-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples ambaed In accmvkmce with the char <br /> custody document T his analytical report must be reproduced in its e:* <br /> Page 6 of 8 <br />