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Sequoia <br /> 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wrget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)923-9600 FAX(916)921-0100 <br /> ����:T�i��� 1455 McDowell Blvd North Ste D Petaluma CA 94954 (707) 792-1865 FAX(707) 792-0342 <br /> V07Y g t551 Industrial Road San Carios CA 94070-4111 (650)232-9600 FAX(650)232-9612 <br /> Obequoia Analytical Client Project ID 1-905529- Blaine Tech Services, Inc Sampled May 25, 1999 <br /> 1551 Industrial Blvd Sample Matrix Water Received May 25, 1999 <br /> San Carlos, CA 94070 Analysis Method EPA 5030/8015 Mad /8020 Reported Jun 16, 1999 <br /> Attention Mike Gregory First Sample # 905-2409 <br /> QC Batch Number GC060499 GCO60399 GCO60399 GC060399 GC060399 GC060499 <br /> 802005A 802002A 802002A 802002A 802002A 802005A <br /> TOTAL PURGEABLE PETROLEUM HYDROCARBONS with BTEX / MTBE <br /> Reporting Sample Sample Sample Sample Sample Sample <br /> Analyte Limit I l D I D I D l D I D <br /> pg/L 905-2409 905-2410 905-2411 905-2412 Method Method <br /> MW-1 MW-2 MW-3 TB Blank Blank <br /> Purgeable <br /> Hydrocarbons 50 N D N D 4,700 N D N D N D <br /> Benzene 0 50 N D N D 610 N D N D N D <br /> Toluene 050 N D N D 23 N D N D N D <br /> Ethyl Benzene 0 50 N D N D 70 N D N D N D <br /> Total Xylenes 0 50 N D N D 210 N D N D N D <br /> MTBE 25 210 ND ND ND ND ND <br /> Chromatogram Pattern -- Gasoline -- -- <br /> Quality Control Date <br /> Report Limit Multiplication Factor 10 1 0 20 1 0 1 0 1 0 <br /> Date Analyzed 6/4/99 6/3/99 6/3/99 6/3/99 6/3/99 6/4/99 <br /> Instrument Identification HP-5 HP-2 HP-2 HP-2 HP-2 HP-5 <br /> Surrogate Recovery, % 91 101 * 97 106 120 <br /> (OC Limits = 70-130%) <br /> Purgeable Hydrocarbons are quantitated against afresh gasoline standard <br /> Analytes reported as N D were not detected above the stated reporting limit <br /> SEQUOIA A ICAL, #1271 Please Note <br /> ~ Surrogate recovery above control limit due to coelution <br /> Charlie Westwater <br /> Project Manager <br /> 9052409 SSS <11 > <br />