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• <br /> Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> 404 N.Wiget Lane Walnut CTCtk,CA 94598 (510) 988-9600 FAX(510)988-9673 <br /> qwr Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0 100 <br /> ........... <br /> ........... <br /> Blaineech ervices, Inc. CH.. <br /> lent Project ID: Chevron 9-0557 <br /> "' <br /> 985 Timothy Drive Matrb(: Liquid <br /> .,.-.'San Jose, CA 95133 <br /> : <br /> -Attention: Jim Keller Work Order#: 9611305 02, 03, 05 ReportedNov 24 1996. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Nitrate Nitrite Sulfate <br /> QC Batch#: IN1 1()7963000ACB IN I 1079630ooACB IN I 107963000ACB <br /> Analy. Method: EPA 300.0 EPA 300.0 EPA 300.0 <br /> Prep. Method: N.A. N.A- N.A- <br /> Analyst: S.Fong S. Fong S.Fong <br /> MS/MSD#: 961122802 961122802 961122802 <br /> Sample Cone.: 230 N.D. 61 <br /> Prepared Date: 11/7/96 11/7/96 11/7/96 <br /> Analyzed Date: 11/7/96 11/7/96 11/7/96 <br /> Instrument I.D.#: INIC2 INIC2 INIC2 <br /> Cone. Spiked: 50 mg/L 50 mg/L 50 mg/L <br /> Result: 280 47 110 <br /> MIS % Recovery: i00 94 98 <br /> • Dup. Result: 280 47 110 <br /> MSD % Recov.: 100 94 98 <br /> RPD: 0.0 0.0 0.0 <br /> RPD Limit: 0-20 0-20 0-20 <br /> XX <br /> % <br /> LCS #: LCS110796 LCS110796 LCS110796 <br /> Prepared Date: 11/7/96 11/7/96 11/7/96 <br /> Analyzed Date: 11/7/96 1117/96 11/7/96 <br /> Instrument 1.1014, INIC2 INIC2 INIC2 <br /> Cone. Spiked: 10mg/L 10 mg/L 10 mg/L <br /> LCS Result: 9.4 9.8 9.4 <br /> LCS % Recov.: 94 98 94 <br /> /MSD 75-125 75-125 75-125 <br /> LCS 80-120 80-120 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 /> AdbS_E(QU0IA ANAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of sample <br /> 1fortified with known quantities of specific compounds and subjected to the entire analytical procedure. If <br /> the recoveryof 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 /> eggy Penner <br /> Project Manage MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 96113.05.131LA -c6> <br />