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Sequoia 680 Chesapeake Drive Redwood City,CA )4063 (415) 364.9600 FAX(415) 364.9233 <br /> 404 N. Wiget Lane Walnut Creek,C4 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 /> Iwo- <br /> 0 <br /> .............. .... ... <br /> ......... ... ...............:.::.::::..:::.v.:.v..•::::.:..:-.. !i.`:.:::,v:::{:rt!-:x+. - <br /> .....:......:. ... e.,AJ..:....n n.........+..:-v+:n:..:.:.. ........... _....... ....... ......... - .-.:;:L;:�::::-:ri::i:::::.:,:..v4v r::.}???]nv:•:.:::-Y:}r.:Nti?'!:r' .:..:.......:...:.... <br /> .;v:.::..:.:J..:n. r:.:::--. :::-:..::.,._...:.:..v:-:,............:....,...v.:,•:...:..........:.:•:cr..?}?:<-?::....,.v.... ......:...r;n..>v:-.:.::.:-: <br /> Blaine Tech Services, Inc. Client Project lD. Chevron 9 0557 960821-KI <br /> :;985 Timothy Drive Matrix: Liquid `> <br /> San Jose, CA 95133 <br /> :Attention: Jim Keller Work Order#: 9608E72-05 Reported. v:Sep.5` 1996:.; <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch#: GC082996BTEX20A GC08299BBTEX20A GCO829%BTEX20A GCO82996BTEX20A <br /> Analy. Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep. Method: EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst: D.Jirsa D.Jirsa D.Jirsa D.Jirsa <br /> MS/MSD#: 960806206 960806206 960806206 960SC6206 <br /> Sample Conc.: N.D. N.D. N.D. N.D. <br /> Prepared Date: 8/29/96 8/29/96 8/29/96 8/29/96 <br /> Analyzed Date: 8/29/96 8/29/96 8/29/96 8/29/96 <br /> Instrument 1.D.#: GCHP20 GCHP20 GCHP20 GCHP20 <br /> Conc. Spiked: 10ug/L 10ug/L 10ug/L Sous/L <br /> Result: 11 10 10 30 <br /> . MS %Recovery: 110 100 100 100 <br /> Dup. Result: 11 11 11 31 <br /> IVISD% R@COV.: 110 110 110 103 <br /> RPD: 0.0 9.5 9.5 3.3 <br /> RPD Limit: 0-25 0-25 0-25 0-25 <br /> .............n... €'>= <br /> LCS #: BLK0829% BLK082996 BLK0829% BLK082996 <br /> Prepared Date: 8/29/96 8/29/96 8/29/96 8/29/96 <br /> Analyzed Date: 8/29/96 8/29/96 8/29/96 8/29/96 <br /> Instrument I.D.#: GCHP20 GCHP20 GCHP20 GCHP20 <br /> Conc. Spiked: long/L 10ug/L long/L 30pg/L <br /> LCS Result: 9.9 10 9.4 28 <br /> LCS % Recov.: 99 100 94 93 <br /> 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70.130 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 /> O 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 /> P oject Manager "MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative 96 Difference 9608E72.BLA �2> <br />