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k 1455 McDowell Blvd North Ste V <br /> Petaluma CA 94954 <br /> Sequoia (707)792 1865 <br /> � CAX(707) 2 <br /> Analytical www s.qunialahsCom <br /> ttler-Ryan-Dublin Project Unocal <br /> 6747 Sierra Ct,Suite 3 Project Number C-Sparge Test/0187,Stockton,CA Reported <br /> Dublin CA,94568 Project Manager Paul Le Clitminant 08/07/01 15 10 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015MI8020M - Quality Control <br /> Sequoia Analytical- Petaluma <br /> Reporting Spike Sourer. %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Note% <br /> Batch 1070618-EPA 5030 waters <br /> LCS(1070618-BS2) Prepared&Analyzed 08/02101 <br /> Gasolme(C6-C 12) 2540 50 ug/l. 2750 924 65-135 <br /> Benzene 429 0 50 330 130 65-135 <br /> Toluene 191 0 50 198 96 5 65-135 <br /> Ethylberizene 49 8 0 50 460 108 65-135 <br /> Xylenes(total) 239 050 230 104 65-135 <br /> Methyl ten-butyl ether 60 2 25 525 115 65-135 <br /> Surrogate a a a-Trifluorotaluene 338 300 113 65-135 <br /> Surrogate 4-Biomofluoiobcnseru 316 300 105 65-135 <br /> Matrix Spike(1070618-MSI) Sourt_e P107430-03 Prepared&Analyzed 07/25/01 <br /> Gasoline(C6-Cl2) 2470 50 ug/l. 2750 ND 898 65-135 <br /> Benzene 38 5 050 33 0 ND 117 65-135 <br /> diene 182 050 " 199 ND 91 8 65-135 <br /> (benzene 491 0 50 f1 460 ND 107 65-135 <br /> Xylenes(total) 229 050 230 ND 99 6 65-135 <br /> Methyl tett-butyl ether 71 9 25 525 ND 135 65-135 <br /> Surrogate a aa-Trifluorotoluene 327 300 109 65-135 <br /> Surrogate 4-Bromofluotobenzene 323 300 108 65-135 <br /> Matrix Spike Du (1070618-}14SD1) Source P107430-03 Prepared&Analyzed 07/25/01 <br /> Gasoline(C6-C12) 2540 SO ugll 2750 ND 924 65-135 279 20 <br /> Benzene 39 0 0 50 33 0 ND 118 65-135 129 20 <br /> Toluene 178 0 50 198 ND 89 8 65-135 222 20 <br /> Ethylbenzene 49 4 050 460 ND 107 65-135 0 609 20 <br /> Xylenes(total) 225 050 230 ND 978 65-135 1 76 20 <br /> Methyl ten-butyl ether <br /> 770 2 5 52 5 ND 144 65-135 6 85 20 QM-07 <br /> Out rogate a a a-Triflirorotalriene 320 300 107 65-135 <br /> Surrogate 4-Brromofluorobenzene 321 300 107 65-135 <br /> ,Iliglillquoia Analytical -Petaluma <br /> The results in Am report apply in the sarnp48 analyzed in aceoidunee will?the Chain of <br /> cerrrodvdocument This anulytrcat report must be reproduced in its c:nuretv <br /> page 5 of 6 <br />