Laserfiche WebLink
R . ■ , 680 Chesapeake Drive Redwood City, CA 94063 {650) 364 9600 FAX{650)364 9233 <br /> Sequoia <br /> y 404 N Wiget Lane Walnut Creek CA 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 /> Blaine Tech Services, Inc Client Project ID Chevron 9-4275 /971125-Sl <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9711G19-03 Reported Dec 15, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Benzene Toluene Ethyl Xylenes Gas <br /> Benzene <br /> QC Batch# GC120997BTEX01A GC120997STEX01A GC120997BTEX01A GC120997BTEX01A GC120997BTEX01A <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 Demartini C Demartini C Demartini C Demartini C Demartini <br /> M S/MSD # 9711 G 1907 9711 G 1907 971161907 971161907 971101907 <br /> Sample Conc N D N D N D N D N D <br /> Prepared Date 12/9/97 12/9/97 12/9/97 12/9/97 12/9/97 <br /> Analyzed Date 12/9/97 12/9/97 12/9/97 12/9/97 12/9/97 <br /> Instrument I D # GCHP1 GCHP1 GCHP1 GCHP1 GCHP1 <br /> Conc Spiked- 10lig/L 10lrg/L loug/L 30ug/L 60ug/L <br /> Result 97 11 12 35 67 <br /> • MS % Recovery 97 110 120 117 112 <br /> Dup Result 89 99 11 33 63 <br /> MSD % Recov 89 99 110 110 105 <br /> RPD- 86 11 87 59 62 <br /> RPD Limit 0-25 025 0-25 0-25 0-25 <br /> LCS # BLK120997 BLK120997 BLK120997 BLK120997 BLK120997 <br /> Prepared Date 12/9/97 12/9/97 12/9/97 12/9/97 12/9/97 <br /> Analyzed Date 12/9/97 12/9/97 12/9/97 12/9/97 12/9/97 <br /> Instrument I D # GCHP1 GCHP1 GCHP1 GCHP1 GCHP1 <br /> Conc Spiked- 10ug/L 10ug/L 10ug/L 30ug/L 60ug/L <br /> LCS Result 84 92 99 31 59 <br /> LCS % Recov 84 92 99 103 98 <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 is an aliquot of sample <br /> s fortified with known quantities of specific compounds and subjected to the entire analytical procedure ff <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> ITIC4c>`� interference,the LCS recovery is to be used to validate the batch <br /> Peggy Penner <br /> Project Manager "*MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9711619 BLA <2> <br />