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r? <br /> • <br /> Gettler-Ryan/Geostrategies(1) Projeet Tosco(1) <br /> 6747 Sierra Court, Suite I Project Number Unocal Circle K SS#11205,Lathrop,CA Reported <br /> Dublin CA,94568 Project Manager Deanna Harding 08/03/01 13 39 <br /> Total Purgeable Hydrocarbon (C6-C12) by EPA 8015M and BTEX/MTBE by EPA 8021B - Quality Control <br /> Sequoia Analytical - San Carlos <br /> Reporting SP&C source °/.REC RPD <br /> lAnalyte <br /> Resuh LImtt Units Level Rauh •/.MC Li mis RPP Limn Rotes <br /> Batch 1080007-EPA 5030B(P/T) <br /> Blank(1080007-BLK1) Prepared&Analyzed 08/02/01 <br /> Purgeable Hydrocarbons as Gasoline ND 50 ug/1 <br /> Benzene ND 050 " <br /> Toluene ND 050 " <br /> Ethylbenzene ND 050 " <br /> Xylenes(total) ND 050 " <br /> Methyl Cert-butyl ether ND so <br /> Surrogate a a a-Tri luorotoluene 733 100 733 70-130 <br /> LCS(1080007-BSI) Prepared&Analyzed 08/02/01 <br /> Benzene 8 34 050 ug/l 100 834 70-130 <br /> Toluene 799 050 100 799 70-130 <br /> totsnzene 800 050 100 goo 70-130 <br /> ,(total) 243 050 300 810 70-130 <br /> Surrogate a a a-Trifluorotoluene 834 100 83 4 70-130 <br /> LCS(1080007-BS2) Prepared&Analyzed 08/02/01 <br /> Purgeable Hydrocarbons as Gasoline 253 50 ug/I 250 101 70-130 <br /> Surrogate a a a-Tri luorotoluene 9 01 100 901 70-130 <br /> Matrix Spike(1080007-MSI) Source L107192-02 Prepared 08/02/01 Analyzed 08/03/01 <br /> Purgeable Hydrocarbons as Gasoline 257 50 ug/l 250 ND 103 60-140 <br /> Surrogate a a a-Trifluorotoluene 930 r' 100 93 0 70-130 <br /> Matrix Spike Dup(1080007-MSDI) Source L107192-02 Prepared 08/02/01 Analyzed 08/03/01 <br /> Purgeable Hydrocarbons as Gasoline 262 50 ug/l 250 ND 105 60-140 193 25 <br /> Surrogate a a a-Tr:i luorotoluene 103 100 103 70-130 <br /> Ota Analytical- San Carlos The results in this report apply to the samples analyzed in accordance with the chain of <br /> custody document This analytical report must be reproduced in its entirety <br /> Page 10 of 14 <br />