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From:Dai Wdkins SJC-Oakland Olrlce Fax:(510)3968119 Volca:t510)W-9118 To:Harlan Knoll Papa 18 of 21 Friday,July 14,20M 4:49:03 PM <br /> From:Chromal-ab,Inc. To:Dai Watldns Date:7/14100 Time:4:01:52 PM Fax Page 17 of 20 <br /> C H ROMALAB, INC. Submission t 2000.07.0090 <br /> Environmental Services(SDB) <br /> To: San Joaquin Company, Inc. Test Method: 8020 <br /> 8015M <br /> Attn: Dai Watkins Prep Method: 5030 <br /> Batch QC Report <br /> Gas/BTEX <br /> Laboratory Control Spike(LCSILCSD) Water QC Batch#2800107110-01.05 <br /> LCS: 2000(07110-01.05-002 Extracted: 07/10/2000 07:22 Analyzed 07/10/2000 07:22 <br /> LCSD: 2000107110-01.05-003 Extracted: 07/10/2000 07:53 Analyzed 07/10/2000 07:53 <br /> Compound Conc. [ug/L] Exl).Conc. [ug/L] Recovery[%] RPD Ctrl.Limits[%] Flags <br /> LCS LCSD LCS LCSD LCS LCSD [goo] Recovery RPD LCS LCSD <br /> Gasoline 479 433 500 500 95.8 86.6 10.1 75-125 20 <br /> Benzene 105 100 100.0 100.0 105.0 100.0 4.9 77-123 20 <br /> Toluene 103 97.4 100.0 100.0 103.0 97.4 5.6 78-122 20 <br /> Ethyl benzene 104 99.0 100.0 100.0 104.0 99.0 4.9 70-130 20 <br /> Xylene(s) 291 280 300 300 97.0 93.3 3.9 75-125 20 <br /> Surlrogriaws) <br /> Trinuorotoluene 502 465 500 500 100.4 93.0 58-124 <br /> 4-Bromofluorobenzene-FI 347 363 500 500 69.4 72.6 50-150 <br /> 1220 Quarry Lane'Pleasanton,CA 94566-4756 <br /> Telephone:(925)484-1919'Facsimile:(925)484-1096 <br /> Printed on:07/14/2000 16:00 Page 10 of 13 <br />