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680 Chesapeake Drive Redwood City,CA 94063 (650) 364-9600 FAX(650)364-9233 <br /> Sequoia 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 /> Blaine <br /> .......... <br /> ........... <br /> .... . .... <br /> Services, Inc. Client Project ID: Chevron 9-8632 971119-M2 <br /> ".'Il 680 Rogers Ave. Matrix: Liquid <br /> San Jose, CA 95112 <br /> Fran Thie Work Order#: 9711 C65 -05Reported: Dec 10, 1997;:x;............................ <br /> .............. ......................... <br /> ............... <br /> ............................... <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Total Recoverable <br /> Petroleum Hydrocarbons <br /> OC Batch#: IN112097552000A <br /> Analy. Method: SM 5520 BF <br /> Prep. Method: N.A. <br /> Analyst: P.Cheung <br /> MS/MSD #: BLK112097 <br /> Sample Conc.: N.D. <br /> Prepared Date: 11/20/97 <br /> Analyzed Date: 11/21/97 <br /> Instrument I.D.#: MANUAL <br /> Conc. Spiked: 10 mg/L <br /> Result: 8.2 <br /> BS % Recovery: 82 <br /> UDup. Result: 7.6 <br /> BSD % Recov.: 76 <br /> RPD: 7.6 <br /> RPD Limit: 0-30 <br /> ......................... <br /> LCS#: LCS1 12497 <br /> Prepared Date: 11/24/97 <br /> Analyzed Dale: 11/25/97 <br /> Instrument I.D.#: MANUAL <br /> Conc. Spiked: 10mglL <br /> LCS Result: 12 <br /> LCS % Recov.: 120 <br /> MS/MSD 60-140 <br /> LCS 70-130 <br /> Control Limits <br /> :Please Note: <br /> The LCS is a control Sam pie of known,interferent-free matrix that is analyzed using the same reagents, <br /> -JSEI ANALYTICAL preparation,and analytical methods employed for the samples. The matrix spike is an aliquot of Sample <br /> 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 /> P p interference,the LCS recovery is to be used to validate the batch. <br /> y Pen er <br /> r <br /> Pr ect Manager MS Matrix Spike,MSO MS Duplicate,RPD Relative%Difference 9711065.13LA <1> <br />