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Sequoia Walnut Creek.CA 94598 <br /> (925)9811-9600 <br /> Analytical F (92s1�scom <br /> wwww sequofalaboom <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6'747 Sierra Court Suite l Project Number Chevron#9-3232 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 12-Oct-00 12 16 <br /> Total Purgeable Hydrocarbons (C6-C12), BTEX and MTBE by DHS LUFT - Quality Control <br /> Sequoia Analytical - San Carlos <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 0100034-EPA 5030B [P/TJ <br /> Blank(0100034-BLKI) Prepared&Analyzed 08-Oct-00 <br /> Purgeable Hydrocarbons as Gasoline ND 500 ug/I <br /> Benzene ND 0 500 <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 <br /> Xylenes(total) ND 0 500 " <br /> Methyl Cert-butyl ether ND 500 " <br /> Surrogate g qa-Tnifluorotoluene 108 100 108 700-130 <br /> LCS(0100034-BSI) Prepared&Analyzed 08-Oct-00 <br /> Benzene 107 0 500 ug/I 100 107 700-130 • <br /> Toluene 100 0 500 10 0 100 700-130 <br /> Ethylbenzene 9 43 0 500 100 943 700-130 <br /> Xylenes(total) 288 0 500 300 960 700-130 <br /> Surrogate qga-TnJluorotoluene 115 100 115 700-130 <br /> LCS(0100034-BS2) Prepared&Analyzed 08-Qct-00 <br /> Purgeable Hydrocarbons as Crasoltne 201 50 0 ug/1 250 804 700-130 <br /> Surrogase gaa•Tnfluorow1uene 108 100 108 700-130 <br /> Matrix Spike(0100034-MSI) Source L009196-06 Prepared&Analyzed 08-Oct-00 <br /> Benzene 105 0 500 U94 10 0 ND 105 600-140 <br /> Toluene 992 0 500 100 ND 992 600-140 <br /> Ethylbenzene 9 53 0 500 100 ND 953 600-140 <br /> `Xylenes(total) 28 9 0 500 " 300 ND 963 600-140 <br /> Surrogate gga-Trifluarotoluene 106 100 106 700-130 <br /> Matrix Spike Dup(0100034-MSDI) Source L009196-06 Prepared&Analyzed 08-Oct-00 <br /> Bepzene 121 0 500 ug/I 100 ND 121 600-140 142 250 <br /> Toluene 116 0 500 100 ND 116 600-140 156 25 0 <br /> Ethylbenzene 111 0 500 100 ND 111 60 0-140 152 250 <br /> Xylenes(total) 340 0 500 " 300 ND 113 600-140 160 250 <br /> Surrogate Aix o-TnJl'uorololuene 107 100 107 700-130 <br /> Sequoia Analytical-Walnut Creek The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document Tius analytical report must be reproduced in its entirety <br /> Page 7 of 8 <br />