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Sequoia &W Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Anal1����7 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)92i-9600 FAX(916)921-0100 <br /> Y� 1 1455 McDowell Blvd North Ste D Petaluma,CA 94954 (707)792-1865 FAX(707)792-0342 <br /> 1551 Industnal Road San Carlos,CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> i <br /> 'Sequoia Analytical -Sacµ Client Prol ID W _ S904159/Chevron #9-6258 WW Sampled 04/06/99- <br /> 819 Striker Ave, Suite 8 Sample Descript S904159-17/MW-2@10' Received 04/14/99 <br /> Sacramento, CA 95834 Matrix SOLID Extracted 04/19/99 <br /> Analysis Method EPA 8015 Mod Analyzed 04/19/99 " <br /> Attention Sandra Hanson _ M Lab Number 9904624-04 _ _ Reported 021/99 <br /> QC Batch Number GC0419991SHSHSD _ "� " _ -- - --- ---------- - "`— <br /> Instrument ID GCV-01 <br /> Industrial Solvents <br /> Analyte Detection Limit Sample Results <br /> mg/Kg mg/Kg <br /> Methanol 1 0 .. 16 <br /> Surrogates Control Limits% % Recovery <br /> Pentanol RTX 200 31 166 118 <br /> Pentanol DBWAX 49 166 i 11 <br /> Analytes reported as N D were not present above the stated limit of detection <br /> SEQUOIA ANALYTICAL - al-AP 41210 <br /> 00ject Manager Page 4 <br />