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Sequoia <br /> 1455 McDowell Blvd North Ste D <br /> i 4 i Petaluma CA 94954 ' <br /> (707) 792-0365 <br /> Analytical <br /> FAx (707) 792-0342 <br /> Delta Environmental Consultants Project Exxon Sampled 8/26199 to 8/27/99 <br /> 3164 Gold Camp Dr,Suite 200 Project Number 7-0137/D099-865 Received 8/30/99 ' <br /> Rancho Cordova,CA 95670 Project Manager Jim Brownell Reported 9/15199 <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 Analvzed Level Result Result Units Recov Limits % Limit % Notes* ' <br /> Batch 9090365 Date Prepared 9/8199 Extraction Method EPA 5030B IP/Tl <br /> Blank 9090365-BLKI <br /> Methanol 9/8/99 ND mg/kg 100 ' <br /> Surrogate 1 pentanol 500 771 310-166 154 <br /> Surrogate 1 pentanol(dbwax) 500 776 490-166 155 <br /> Blank 9090365-BLK2 <br /> SuMethanol _ 9/10/99 ND mg/kg 100 <br /> rrogate 1-pentanol Soo 658 11 310-166 132 <br /> Surrogate 1 pentanol(dbwa)r) 500 682 It <br /> 490-166 136 <br /> LCS 9090365-BS1 <br /> Methan_o€_ __ 9/8/99 800 965 mg/kg 700-130 121 <br /> Su , <br /> rrogate 1 pentanol 5 00 S 91 31 0-166 118 T <br /> Surrogate 1 pentanol(dbwax) 500 609 490-166 122 <br /> LCS 9090365-B52 —J <br /> Methanol _ _ __ 9/10/99 _ 800 _ 620____mg/kg T 700-130 775 <br /> Surrogate I-pentanol "� 500 243 31 0-166 486 <br /> Surrogate I pentanol(dbwax) 5 00 263 490-166 526 <br /> LCS Dup 9090365-BSD1 <br /> Methanol _ 9/8/99 800 932 mg/kg 700-130 116 50 0 422 <br /> Surrogate 1 pentanol 11500 615 310-166 123 <br /> Surrogate 1 pentanol(dbwax) 5 00 640 490-166 128 <br /> LCS Dup 9090365-BSD2 <br /> Methanol _ 9/8/99 800 6 81 mg/kg 700-130 85 1 500 935 ' <br /> Surrogate 1-pentanol 500 365 310-166 73 0 <br /> Surrogate 1 pentanol(dbwax) 500 3 84 490-166 768 <br /> i <br /> i <br /> Sequoia Analytical-Petaluma *Refer to end of report for text of notes and definitions <br /> ,p Page 19 of 20 <br />