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885 Jarvis Drive <br /> Sequoia Morgan }Mill CA 95037 <br /> ,!�i) Analyti cal {408} 776-9600 <br /> IL FAX {408} 782-630$ <br /> Blame Tech Services(Chev) Project Chevron 9-6258(2409 E Main O F Stockton) Sampled 1/20/00 <br /> 1680 Rogers Avenue Project Number 000120-Y2 Received 1121/00 <br /> San Jose CA 95112 Project Manager Scott Boor Re orted 2/9100 1238 <br /> Industrial Solvents by EPA Method 8015(modified)/Quality Control <br /> Sequoia Analytical-Morgan Hill <br /> Date Spike Sample QC Reporting Limit Recov RPD RPD <br /> Analyte Analyzed Level Result Result Units Recov Limits % Limit % Notes* <br /> Batch OA25010 Date Prepared 1125/00 Extraction Method EPA 3810 Headspace <br /> Blank OA25010-BLKI <br /> Methanol- 1/2 5/00 _ _ ND__ _mg/1 100 <br /> Surrogate 1-pentano! - 500 531 - -- 55-157 106 - -- <br /> Surrogate pentano!(dbwax) 5 00 551 57-170 110 <br /> Blank OA25010-BLK2 <br /> Methanol 1126100 ND mg/1 100 <br /> ------- ----- ------- --- -- <br /> Surrogate 1 pentanol 500 5 21 55-157 104 <br /> Surrogate 1-pentanol(dbwax) 500 518 57-170 104 <br /> LCS OA25010-BS1 <br /> Methanol 1125100 800 899 _ mg/1 _ 70-130 112 <br /> Surrogate 1 pentanol 500 - 553 55-157 111 <br /> Surrogate I pentano;idbivax,) 500 584 57-170 117 <br /> LCS OA25010-BS2 <br /> Methanol _ 1126/00 800 762 mg11 70-13095 2 <br /> Surrogate I pentanol _ - -- m --' 500 _ - _-- - 540 - - „ - -- -- 55-157 ---108 - - - - - - <br /> ,�uriogate 1-oenlanul(dhwaxl 5 00 540 57-170 108 <br /> Matrix Spike OA25010-MSI M001498-08 <br /> Methanol 1/26/00 800 ND 739 mg/1 50-150 924 <br /> Surrogate 1 pentanol -_— - 500 f �_--- - 520 -- " - -- -55-157 104 -- -- ^ <br /> Surrogate I pentanol(dbwax) 5 00 5 1I 57-170 103 <br /> Matrix Spike Dup OA25010-MSDI M001498-08 <br /> Methanol 1126/00 800 ND 784 mg/1 50-150 98 fl 50 5 91 <br /> ,Surrogate 1 pentanol 5 00 5 44 55-157 109 <br /> ,Surrogate 1 pentanol(dbwax) 500 546 57-170 109 <br /> Sequoia Analytical -Morgan Hill *Refer to end of report far text of notes and definitions <br /> Page 6 of 9 <br />