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I <br /> 885 larAs Drive <br /> Sequoia `ga'Hill `" 037 <br /> "� (4081776-9600 <br /> FAX(408)782-6308 <br /> Analytical www sequotalabs cam <br /> Gettler Ryan/Geostrategies-Dublin(Chevron) project Chevron <br /> 6747 Sierra Court,Suite J Project Number 9-8264 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 06/06/01 16 03 <br /> Total Purgeable Hydrocarbons (C6-02), BTEX and MTBE by DHS LUFT,- Quality Control <br /> Sequoia Analytical - Morgan Hill <br /> Reporting Spike SourceT—T%REC RPD-- �^ —� <br />- Anatyte <br /> --Result - Limit_ ,Units,.,.Y,r Level„, Result %REC Limits RPD Limit Notes <br /> Batch 1E29003-EPA 5030B JP/T] <br /> LCS(1E29003-SSI) Prepared&Analyzed 05/29/01 <br /> Benzene- - - - -' - 924 0 500 - ug/1 100 - - 924 - 70-130 - - - - - - <br /> Toluene 935 0 500 100 935 70-130 <br /> Ethylbenzene 918 0 500 100 91 8 70-130 <br /> Xylenes(total) 298 0 500 300 960 70-130 <br /> Surrogate a a a-TriJluorotoluene 11 I 100 111 70-130 <br /> Matrix Spike(IE29003-MS1) _ Source MKE0604-01 Prepared&Analyzed 05/29/01 <br /> Benzene 109 0 500 ug/l 100 1 17 97 3 60-140 <br /> Toluene 996 0 500 100 ND 99 6 60-140 <br /> Ethylbenzene 956 0 500 100 ND 95 6 60-140 <br /> Xylenes(total) _ _ _ 307 0 500 300 ND 102 60-140 <br /> Surrogate a a a-Trilluorotoluene 109 100 109 70-130 - <br /> Matrix Spike Dup(IE29003-MSD1) Source MKE0604-01 Prepared&Analyzed 05/29/01 <br /> Benzene 106 0 500 ug/l 100 1 17 94 3 60-140 279 25 <br /> Toluene 960 0 500 100 ND 960 60-140 3 68 25 <br />-_ Ethylbenzene= -___ --- - :9 33�-_0 500— T —10 0_ ND--93 360-14_0,2_44 _ _25�_ <br /> Xylenes(total) 294 0 500 300 ND 980 60-140 433 25 <br /> Surrogate a a a-Tnfli�orotoluene - 10 8 - "- --10 0 — —108=70=130- -- - - -- - - _ <br /> Sequoia Analytical-Morgan Hill The results in this report apply to the samples analyzed in accordance with the chain <br /> custody document This analytical report must be reproduced in its entire <br /> Page Page 12 of 23 <br />