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Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (4t5) 364-9600 FAX(415) 364-9233 <br /> 404 N,Wiget Lane Walnut Creek,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> Analytical 819 Striker Avenue,Suite 8 Sacramento, CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> ....:.:...::.:::.:: <br /> :::.....: ..:..:... ....... <br /> .........:.:::.::::.:::: <br /> Smith Environmental Client Project ID: 14640, 95-122 <br /> 1260 Graphics Drive Matrix: Liquid <br /> ::::-Modesto, CA 9535 1-1 502 <br /> =Atten#ion: William Madison Work Order#: 9703997 -01, 02, 03 Reported: Apr 9, 1997:;::: <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Beryllium Cadmium Chromium Nickel <br /> QC Batch#: ME0319976010M2A ME0319976016M2A ME03199760101V12A ME0319976010M2A <br /> Analy. Method: EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep. Method: EPA 3010 EPA 3010 EPA 3010 EPA 3010 <br /> Analyst: R. Butler R.Butler R.Butler R. Butler <br /> MS/MSD#: 9703997-03 9703997-03 9703997-03 9703997-03 <br /> Sample Cone.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 3/19/97 3/19/97 3/19/97 3/19/97 <br /> Analyzed Date: 3/19/97 3/19/97 3/19/97 3/19/97 <br /> Instrument I.D.#: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Cone. Spiked: 1.0 mg/L 1.0 mg/L 1.0 mg/L 1.0 mg/L <br /> Result: 0.92 0.98 0.96 0.94 <br /> MS % Recovery: 92 98 96 94 <br /> Dup. Result: 0.90 0.97 0.95 0.93 <br /> MSD %Recov.: 90 97 95 93 <br /> RPD: 2.2 1.0 1.0 1.1 <br /> RPD Limit: 0-20 0-20 0-20 0-20 <br /> LCS#: M1031497A M1031497A MI031497A M1031497A <br /> Prepared Date: 3/19/97 3/19/97 3/19/97 3/19/97 <br /> Analyzed Date: 3/19/97 3/19/97 3/19/97 3/19/97 <br /> Instrument I.D.#: MTJA2 MTJA2 MTJA2 MTJA2 <br /> Cone. Spiked: 5.0 mg/L 5.0 mg/L 5.0 mg/L 5.0 mg/L <br /> LCS Result: 4.8 5.1 5.0 5.1 <br /> LCS % Recov.: 96 102 100 102 <br /> 80-120 80-120 80-120 80-120 <br /> LCS 80-120 80-120 80-120 80-120 <br /> Control Limits <br /> Please Note: <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 sample <br /> Xlynn fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> terference,the LCS recovery is to be used to validate the batch. <br /> Sheila <br /> Project Ma nag **MS—Matrix Spike, MSD=MS Duplicate, RPD-Relative%Difference 9703997.SSS <1> <br /> 00 <br />