Laserfiche WebLink
i l a ' Sequoia 680 CFcsapcake Dnve Redwood City CA 94063 (650) 364 96W FAX(650)364 9233 <br /> F..`�r� 404 N Wiget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510) 988 9673 <br /> �,,,� Analytiea1 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> r <br /> E A Engineering Science &Tech Client Project ID Exxon 7-3942, 51539 42 1300 <br /> '3468 Mt Diablo Blvd , Ste B-100 Matrix Liquid <br />' Lafayette, CA 94549 <br /> Attention Christa Marting Work Order# 970BE45-10 Reported Sep 11, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> OC Batch# GC090397BTEX06A GC090397BTEX06A GCO90397BTEX06A GCO90397BTEX06A GCO90397BTEX06A <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 A Porter A Porter A Porter A. Porter A Porter <br /> MS/MSD# 970807803 9708D7803 9708D7803 9708D7803 970807803 <br /> Sample Cone N D N D N D N D N D <br /> Prepared Date 9/3/97 9/3/97 9/3/97 9/3/97 9/3/97 <br /> Analyzed Date 9/3/97 9/3/97 9/3/97 9/3/97 9/3/97 <br /> Instrument l D # GCHP6 GCHP6 GCHP6 GCHP6 GCHP6 <br /> Cone Spiked 10Ng/L 10pg/L 10Ng/L 30frg/L 60jrg/L <br /> Result 88 92 90 26 62 <br /> MS % Recovery 88 92 s4 87 103 <br /> Dup Result 95 99 98 28 67 <br /> MSD % Recov 95 99 98 93 112 <br /> RPD 77 73 85 74 78 <br /> RPD Limit 0-25 0-25 0-25 0-25 0-25 <br /> LCS # BLK090397 BLK090397 BLK090397 BLK090397 BLK090397 <br /> I Prepared Date 9/3/97 9/3/97 9/3/97 9/3/97 9/3/97 <br /> Analyzed Date 9/3/97 9/3/97 9/3/97 9/3/97 9/3/97 <br /> Instrument l D # GCHP6 GCHP6 GCHP6 GCHP6 GCHP6 <br /> Cone Spiked 10Ng/L 10jtg/L 10pg/L 30Ng/L 60pg/L <br /> LCS Result* 8 9 92 91 26 60 <br /> LCS % Recov 89 92 91 87 104 <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 Lim:ts <br />' Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> -QUOIA 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 /> ichard Heriing <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference 9708E45 EEE <5> <br />