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Sequoia 680 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 /> � Analytieal. 819 Striker Avenue,Suite B Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project I D Chevron 9-4183 /960731-D2 3 <br /> ?985 Timothy Drive Matroc Liquid >' <br /> .S <br /> ,,San Jose, CA 95133 <br /> 'vGhOSf 7,L�..ce,:s w:wf;~#xrwr ,.,,.a'r ,rw 6v rrr cin.•+ .snYs rt^n;a, t`r�r" 9. 608.,.r 9oar i 1..0,rf3r Repror#er dt r Aug <br /> 13, 19% <br /> 96 <br /> Attention Jim Keller Work Order# v <br /> S' <br /> QUALITY <br /> CONTROL DATA REPORT <br /> Analyte: 1,1-Dichlofa- Tnchloro- Chloro- <br /> ethene ethane benzene <br /> OC Batch#: GCO8o896801008A GC080896801008A GC080896801008A <br /> Analy. Method: EPAS010 EPAS010 EPAS010 <br /> Prep Method: EPA 5030 EPA 5030 EPA 5030 <br /> Analyst T Costello T Costello T Costello <br /> MS/MSD #: 960811701 960811701 960811701 <br /> Sample Cone. N D a 80 N D <br /> Prepared Date 8/7/96 8/7/96 8/7/96 <br /> Analyzed Date- 8/8/96 8/8/96 8/8/96 <br /> Instrument I D #. GCHP8 GCHP8 GCHPS <br /> Cone. Spiked- 25pg/L 25pg/L 25pg/L <br /> Result' 25 27 28 <br /> MS % Recovery 100 105 112 <br /> Dup Result: 25 28 28 <br /> MSD %Recov 100 109 112 <br /> RPD' 00 36 00 <br /> RPD Limit 0-25 0.25 0-25 <br /> LCS #: BLK080896 BLK080896 BLK080896 <br /> Prepared Date. 8/8/96 8/8/96 8/8/96 <br /> Analyzed Date. 8/8/96 8/8/96 8/8/96 <br /> Instrument I D.#: GCHP8 GCHP8 GCHP8 <br /> Cone. Spiked 25ug/L 25ug/L 25pg/L <br /> LCS Result. 24 27 25 <br /> LCS %Recov: 96 108 100 <br /> All 60-140 60-140 60-140 <br /> LCS 65-135 70.130 70-130 <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 /> 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 /> [ Interference,the LCS recovery is to be used to validate the batch <br /> WPeggy Penner **MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manag Page 1 of 2 9608096 BLA <1' <br />