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• Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiset Lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> Analytical 819 Sinker Avenue Suite B Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> low <br /> Blaine Tech Services, Inc Client Project ID 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 /> r .v. =`:�` <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dlchloro- Tnchloro- Chloro- <br /> ethene ethane benzene <br /> QC Batch# GCO83196801008A GC0831%W1008A GC0831%W1008A <br /> Anally. Method. EPA 5010 EPA 8010 EPA 8010 <br /> Prep. Method EPA 5030 EPA 50.'30 EPA 5030 <br /> Analyst B All B wl B All <br /> MS/MSD#• 9608D3001 960803001 960803001 <br /> Sample Conc N D 1800 N D <br /> Prepared Date, 8/31/96 8/31/96 8/31/96 <br /> Analyzed Date: 8/31/96 8/31/96 8/31/96 <br /> Instrument 1 D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked 25 Ng/L 25 pg/L 25 pg/L <br /> Result 56000 57000 52000 <br /> MS% Recovery. 90 a8 83 <br /> Dup. Result: 59000 63000 60000 <br /> MSD%Recov 94 98 96 <br /> i <br /> RPD 52 10 14 <br /> RPD Limit, 0-25 0-25 0-25 <br /> LCS#. BLK083196 BLK083196 BLK083196 <br /> Prepared Date: 8/31/96 8/31/96 8/31/96 <br /> Analyzed Date: 8/31/96 8/31/96 8/31/96 <br /> Instrument I.D #' GCHP8 GCHP8 GCHP8 <br /> Conc Spiked. 25pg/L 25pg/L 25Ng/L <br /> LCS Result 22 22 22 <br /> LCS%Recov.• 88 88 88 <br /> 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 /> 7roject <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 /> Penner *�MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference <br /> Manager ssosc7o BLA �8� <br />