Laserfiche WebLink
- , Sequoia 680 Chesapeake Dnve Redwood City CA 94063 (650) 36.4 9600 FAX(650)364 9233 <br /> 404 H Wcget Lane Walnut Creek CA 94598 (510) 989 9600 FAX (510) 998 9673 <br /> �,,�► Analytical 819 Striker Avenue Since 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> E A Engineering Science &Tech Client Project ID Exxon 7-3942, 5153942 1300 <br /> 3468 Mt Diablo Blvd , Ste B-100 Matrix Liquid <br /> Lafayette, CA 94549 <br /> Attention Christa Marting Work Order# 9803307 22 Reported Apr 3, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br />' Benzene <br /> QC Batch# GC031498STEX02A GC031498BTEX02A GCO31498BTEX02A GC031498BTEX02A G0031498BTEX02A <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8015M <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst C De Martini C DeMartlni C DeMartinl C DeMartlnl C DeMarttni <br /> MS/MSD# 9BD305202 980305202 980305202 980305202 980305202 <br /> Sample Cone N D N D N D N D N D <br /> Prepared Date 3/14/98 3/14/98 3/14/98 3/14/98 3/14/98 <br /> Analyzed Date 3/14/98 3/14/98 3/14/98 3/14/98 3/14/98 <br /> Instrument I D # GCHP2 GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone Sparked 10frg/L 10ug/L 10pg/L 30Ng/L 60,ug/L <br /> Result 84 81 81 24 63 <br /> MS % Recovery 84 81 81 So 105 <br /> Dup Result 85 82 8 2 25 64 <br /> MSD %Recov 85 82 82 83 107 <br /> RPD 12 12 12 41 16 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> LCS # BLK031498 BLK031498 BLK031498 BLK031498 BLK031498 <br /> Prepared Date 3/14/98 3/14/98 3/14/98 3/14/98 3/14/98 <br /> Analyzed Date 3/14/98 3/14/98 3/14/98 3/14/98 3/14/98 <br /> Instrument 1 D # GCHP2 GCHP2 GCHP2 GCHP2 GCHP2 <br /> Cone Spiked 10}tg/L 10pg/L 10ug/L 30pg/L 60ug/L <br /> LCS Result 83 79 80 24 61 <br /> LCS %Recov 83 79 80 80 1Q2 <br /> 60-140 60-140 60-140 60-140 60.140 <br />' LCS 70-130 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 /> SEQUOIA ANALYTICAL preparation,and analytical methods employed for the samples The matrix spike 1s an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> L 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 /> Richard Herling <br /> Project Manager **MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative% Difference 9803305 EEE <9> <br />