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Sequoia680 Chesapeake Drive Redwood City,CA 94063 (415) 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 /> Smith Environmental Client Project ID: 14640, 95-122 <br /> 1260 Graphics Drive Matrix: Liquid <br /> ;;Modesto, CA 95351-1502 <br /> ::,Attention: William Madison Work Order#: 9703997-01, 02, 03 Reported: Apr 9, 1997';::; <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Alkalinity Nitrate Sulfate <br /> QC Batch#: IN032097403000A IN0320973000ACA IN0320973000ACA <br /> Analy. Method: SM 403 EPA 300.0 EPA 300.0 <br /> Prep. Method: NA NA NA <br /> Analyst: J.Saadeh S.Fong S.Fong <br /> MS/MSD#: 9703919-44 9703794-12 9703794-12 <br /> Sample Conc.: 840 mg/L 49 216 <br /> Prepared Date: 3/20/97 3/20/97 3/20/97 <br /> Analyzed Date: 3/20/97 3/20/97 3/20/97 <br /> Instrument I.D.#: Manual INIC2 INIC2 <br /> Conc. Spiked: 1000 mg/L 100 mg/L 100 mg/L <br /> Result: 1800 135 301 <br /> MS %Recovery: 96 86 85 <br /> Dup. Result: 1700 153 320 <br /> MSD %Recov.: 86 104 104 <br /> RPD: 5.7 13 6.1 <br /> RPD Limit: 0-20 0-20 0-20 <br /> LCS#: LCS032097 IN032197 IN032197 <br /> Prepared Date: 3/20/97 3/21/97 3/21/97 <br /> Analyzed Date: 3/20/97 3/21/97 3/21/97 <br /> Instrument E.D.#: Manual INIC2 INIC2 <br /> Conc. Spiked: 100 mg/L 10 mg/L 10 mg/L <br /> LCS Result: 100 9.4 10 <br /> LCS %Recov.: 100 94 100 <br /> 75-125 75-125 75-125 <br /> LCS 80-120 90-110 90-110 <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 /> r 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 /> g-- interference,the LCS recovery is to be used to validate the batch. <br /> Sheila Flynn <br /> Project Mana er **MS=Matrix Spike,MSD=MS Duplicate,RPC=Relative Difference 9703997-SSS <3> <br />