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Sequoia680 Chesapeake Drive Redwood GM 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 Sinker Avenge,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> v}L r ,S GN v n r s .Y r ir`ry+` `.Vn. r +w.+ r a }r`''v` v+Gv rr'.r+r ry .v.vJ Y ` 1h r v yr • v ' ` rr •v <br /> Blaine Tech Services, Inc Client Project ID. r Chevron 9-8264/960820-J1 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9608C70-01 Reported Sep,. 4, 1996.` <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. 1,2,4-Trichloro 4-Chloro-3 Acenaphthene 4-Nitrophenol <br /> benzene Methylphenol <br /> OC Batch#: MS0821968270EXA MS08219W270EXA MSOB2196B270EXA MS0821M270EXA <br /> Analy. Method EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prep Method EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst E Manuel E Manuel E Manuel E Manuel <br /> MS/MSD #. 960887303 9608B7303 960887303 96WB7303 <br /> Sample Cone ' N D N D N D N D <br /> Prepared Date: 8/21/96 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date 8/22/96 8/22/96 8/22/96 8/22/96 <br /> Instrument I D #. F4 F4 F4 F4 <br /> Cone Spiked. 200yg/L 200 ug/L 2OONg/L 2OOug/L <br /> Result- 140 140 140 63 <br /> MS % Recovery 70 70 70 32 <br /> Dup Result iso 150 140 78 <br /> MSD %Recow 75 75 70 39 <br /> RPD 69 69 00 21 <br /> RPD Limit 0-30 0-30 0-30 0-30 <br /> LCS # BLK082196 BLK082196 BLK082196 BLK082196 <br /> Prepared Date 8/21/96 8/21/96 8/21/96 8/21/96 <br /> Analyzed Date* 8/22/96 8/22/96 8/22/96 8/22/96 <br /> Instrument I D #. F4 F4 F4 F4 <br /> Cone. Spiked 200yg/L 200lig/L 200yg/L 200 pg/L <br /> LCS Result, 140 150 140 66 <br /> LCS%Recov. 70 75 70 33 <br /> 43-107 42-107 43-107 DL-118 <br /> LCS 60-95 54100 51-96 21-114 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-tree matrix that is analyzed using the same reagents, <br /> S te <br /> ALYTICAL 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 clue to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> eggr *'MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Project Manager Page 2 of 3 9608070 BLA <3> <br />