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404 N Wiget Lane <br /> Walnut Creek.CA 94598 <br /> Sequoia a (925)988-9600 <br /> FAX(925)988-%73 <br /> Analytical %Vww seIUOIalabs`°m <br /> Gettler Ryan,Inc -Dublin Project Chevron <br /> 6747 Sierra Court Suite J Project Number Chevron#9-2033 Reported <br /> Dublin CA,94568 Project Manager Deanna L Harding 04-Sep-01 11 14 <br /> Semivolatile 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 1H22007-EPA 3510B Sep Funnel <br /> Blank(IH22007-BLK2) Prepared 27-Aug-01 Analyzed 29-Aug-01 <br /> Phenol ND 50 ugA <br /> Pyrene ND 50 <br /> 1,2,4-Trichlorobenzene ND 50 " <br /> 2,4,5-Trichlorophenol ND 10 " <br /> 2,4,6-Trichlorophenol ND 10 " <br /> Surrogate 1-Fluorophenol 6.99 150 466 21-110 <br /> Surrogate Phenol-d6 463 150 309 10-110 <br /> Surrogate Nitrobenzene-d5 771 100 771 35-114 <br /> Surrogate 2-Fluorobiphenyl 825 100 825 43-116 <br /> Surrogate 2 4,6-Tribromaphenol 134 150 893 10-123 <br /> Surro ate p-Terphenyl-d14 111 100 111 33-141 <br /> 22007-B5I) Prepared 22-Aug-01 Analyzed 28-Aug-01 <br /> Acenaphthene 86 9 5 0 ug/l 100 86 9 46-118 <br /> 4-Chloro-3-methylphenol 122 50 150 813 23-97 <br /> 2-Chlorophenol 107 so 150 713 27-123 <br /> 1,4-Dichlorobenzene 646 10 100 646 36-97 <br /> 2,4-Dinitrotoluene 813 t0 100 813 24-96 <br /> 4 Nitropheno! 345 10 150 230 10-80 <br /> N-Nitrosodi-n-propylamine 101 so 100 101 41-116 <br /> Pentachlorophenol 994 10 150 663 9-103 <br /> Phenol 463 50 150 309 12-110 <br /> Pyrene 113 so 100 113 26-127 <br /> 1,2,4-Trichlorobenzene 732 50 100 732 39-98 <br /> Surrogate 2-Fluorophenol 708 150 472 21-110 <br /> Surrogate Phenol-d6 370 150 247 10-110 <br /> Surrogate Nirrobenzene-d5 850 100 850 35414 <br /> Surrogate 2-Fluorobtphenyl 861 100 861 43-116 —' <br /> Surrogate 2,4,6-Tribromophenol 161 150 107 10-123 <br /> Surrogate p-Terphenyl-d14 114 100 114 33-141 <br /> S Analytical-Walnut Creek 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 22 of 26 <br />