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Sequoia CA 404 N Lane <br /> Walnut Creek CA 94598 <br /> (925)988-9600 <br /> Analytical FAx(925)alabs c 73 <br /> www secluolalabs com <br /> Oettle,Ryan, Inc -bubhn Protect Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-8264 Reported <br /> Dublin CA,94568 Protect Manager Deanna L Harding 06-Aug-01 09 54 <br /> Semrvolatile Organic Compounds by EPA Method 8270C - Quality Control <br /> Sequoia Analytical - Walnut Creek <br /> Reporting Spike Source %REC RPD <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 1G24007- FPA 3510B Sep Funnel <br /> Blank(IG24007-BLKI) Prepared 24-Jul-01 Analyzed 25-Jul-01 <br /> Surrogate Phenol-d6 - 524— — -� ug/1 mm 150 349 �JO-110 �- <br /> Surrogate Nitrobenzene-d5 699 100 699 35-114 <br /> Surrogate 2-Fluorobiphenyl 812 100 822 43-116 <br /> Surrogate 2 4 6-Trebromophenol 932 150 621 10-113 <br /> Surrogate p-Terphenyl-d14 101 100 101 33-141 <br /> LCS(IG24007-BS1) Prepared 24-Jul-01 Analyzed 25-Jul-01 <br /> Acenaphthene 842 50 ug/14 100 842 46-118 <br /> 4-Chloro-3-methylphenol 120 50 150 800 23-97 <br /> 2-Chlorophenol 112 so 150 747 27-123 <br /> 1 4-Dichlorobenzene 686 10 100 686 36-97 <br /> 2,4-Dmitrotoluene 776 10 100 776 24-96 <br /> trophenol 255 10 150 170 10-80 <br /> itrosodi-n-propylamme 928 5 0 100 928 41-116 <br /> Pentachlorophenol 120 10 150 Soo 9-103 <br /> Phenol 476 50 150 31 7 12-110 <br /> Pyrene 105 50 100 105 26-127 <br /> 1,2,4-Trichlorobenzene 773 so 100 773 39-98 <br /> Surrogate 2-Fluorophenot 765 150 510 21-110 <br /> Surrogate Phenol-d6 485 150 323 10-110 <br /> Surrogate Nitrobenzene-d5 767 100 76 7 35-114 <br /> Surrogate 2-Fluorobiphenyl 837 100 83 7 43-116 <br /> Surrogate 2 4 6-Trebromophenol 102 150 680 10-113 <br /> Surrogate p-Terphenyl-d14 105 100 105 33-141 <br /> LCS Dup(1G24007-BSD1) Prepared 24-Jul-01 Analyzed 25-Jul-01 <br /> Acenaphthene 82 8 so ugh 100 828 46-118 1 68 30 <br /> 4-Chloro-3-methy[phenol 120 50 150 800 23-97 000 30 <br /> 2-Chlorophenol 112 so 150 747 27-123 000 30 <br /> 1,4-Dichlorobenzene 665 10 100 665 36-97 3 11 30 <br /> 2,4-Dinttrotoluene 78 5 10 i00 785 24-96 1 15 30 <br /> 4-Nitrophenol 320 10 150 213 10-80 226 30 <br /> N-Nitrosodi-n-propylamine 927 50 100 927 41-116 0 108 30 <br /> Pentachlorophenol 119 10 150 793 9-103 0 837 30 <br /> Phenol 519 so 150 34 6 12-110 864 30 <br /> Pyrene 973 50 100 973 26-127 761 30 <br /> Sequoia Analytical - Walnut Creek The results in this reporl 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 21 of 24 <br />