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1455 McDowell Blvd North,Ste D <br /> }� Sequoia Petaluma,CA 94954 <br /> (707)792-1865 <br /> FAX(707)792-0342 <br /> Analytical www sequolalabs coin <br /> Cambria Environmental Project Equiva 5-7d <br /> 270 Perkins St Project Number 440 West Charter Way,Stockton Reposed <br /> Sonoma CA,95476 Project Manager Aubrey Cool 12/12/00 07 37 <br /> Total Petroleum Hydrocarbons as Gasoline and BTEX by EPA 8015M/8020M - Quality Control <br /> Sequoia Analytical - Petaluma <br /> Reporting Spike Source %REC RPD <br /> Analyte Result limit Units Level Result %REC Limits RPD Limit Notes <br /> Batch 0110247-EPA 5030,soils <br /> Matrix Spike(0110247-MS1) Source P011218-07 Prepared&Analyzed 11/09/00 <br /> Gasoline 478 100 mglkg 550 ND 869 65-135 <br /> Benzene 00733 000500 00640 ND 115 65-135 <br /> Toluene 0 413 000500 " 0 386 ND 107 65-135 <br /> Ethylbenzene 00941 000500 00920 ND 102 65-135 <br /> Xylenes(total) 0 513 000500 0 462 ND 111 65-135 <br /> Surrogate a a a-Tri luorofoluene 0 610 " 0 600 102 65-135 <br /> Surrogate 4-Bromofluorohenzene 0 529 0 600 882 65-135 <br /> Matrix Spike Dup(0 1 10247-MSDI) Source P011218-07 Prepared&Analyzed 11/09/00 <br /> Gasoline 458 100 mg/kg 550 ND 833 65-135 427 20 <br /> Benzene 00709 000500 00640 ND 111 65-135 333 20 <br /> Toluene 0 421 000500 0 386 ND 109 65-135 192 20 <br /> z 00509 <br /> 000500 00920 ND 101 65-135 1 28 20 <br /> *1b- en. 0929 <br /> nes(total) 0 509 0 00500 0 462 ND 110 65-135 0 783 20 <br /> Surrogate a a a-Trifluorotoluene 0 630 0 600 105 65-135 <br /> Surrogate 4-Bromofluorobenzene 0 536 0 600 893 65-135 <br /> Batch 0110281 -EPA 5030,waters <br /> Blank(0110281-BLKI) Prepared&Analyzed 11/10/00 <br /> Gasoline ND 50 0 ug/l <br /> Benzene ND 0 500 " <br /> Toluene ND 0 500 " <br /> Ethylbenzene ND 0 500 " <br /> Xylenes(total) ND 0 500 " <br /> Surrogate a a a-Tris luorotoluene 296 300 98 7 65-135 <br /> Surrogate 4-Bromofluorobenzene 280 " 300 933 65-135 <br /> quoia Analytical-Petaluma 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 26 of 41 <br />