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G8 Chesapeake Drive <br /> � Sequoia 0 C p Redwood City, CA 44063 (4 15) 364-9600 FAX (415) 364.9733 t <br /> 404 N. Wi ct Lane Walnut Crcck, CA 94598 <br /> 8 {510} 488-9600 FAX (510)988-9673 <br /> Analytiea� 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (gIG) 92 1-9600 FAX (9!G)42l-0100 <br /> Smith -Canonle Environmental ClientProlect lD. 94-273'-94-10, Quik Stop 132 <br /> N. Whisman, Bldg. 23 Matrix: Liquid <br /> :,...Mountain View, CA 94043 <br /> „Attention: Rich Gartow Work Order#: 9509H06-01-6 Reported: Oct .9, 1995':;.; <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene ' <br /> QC Batch#: GC1004958TEX06A GC1004958TEX06A GC100495BTEX06A GC100495BTEX06A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: G.Garcia G.Garcia G.Garcia G.Garcia <br /> �1 <br /> MS/MSD#: 95091<3505 9509K3505 9509K3505 9509K3505 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 10/4/95 10/4/95 10/4/95 10/4/95 <br /> Analyzed Date: 10/4/95 10/4/95 10/4/95 10/4/95 <br /> Instrument I.O.#: GGHP6 GCHP6 GCHP6 GCHP6 <br /> Conc. Spiked: 10ug/L 10ug/t_ 10ftg/L 30Ng/l_ <br /> Result: 9.3 9.2 9.2 27 <br /> MS %Recovery: 93 92 92 90 <br /> Dup. Result: 8.2 8.1 8.1 24 <br /> MSD% Recov.: 82 81 81 80 <br /> RPD: 13 13 13 12 <br /> RPD Limit: 0.50 0-50 0-50 0-50 <br /> ft <br /> LCS #: - - <br /> Prepared Date: <br /> Analyzed Date: <br /> Instrument I.D.#: <br /> Conc. Spiked: - <br /> LCS Result: <br /> LCS% Recov.: - - _ _ ' <br /> MS/MSD <br /> LCS 71-133 72-128 72-130 71-120 <br /> Control Limits <br /> Please Note: r <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents <br /> SEQUOIA ANALYTICAL_ preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sampl 1 <br /> _ fortified with known quantities of specific compounds and subjected to the entire analytical procedure. I <br /> ( C t—d' the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch. <br /> Vickie Tague Clark <br /> Project Manager '*MS=Matrix Spike,MSD=MS Duplicate, RPE)=Relative%Difference 9509H06.CAN <2> , <br /> 6D <br />