Laserfiche WebLink
4 4 T—N <br /> Sequoia 680 Chesapeake Drive Redwood City, 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 Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916) 921 0100 <br /> Tauchstone Developments Client Project ID 8264-2, Chevron 9-8264 <br /> P 0 Box 2554 Matrix Solid <br /> Santa Rosa, CA 95405 <br /> Attention Jeff Monroe Work Order# 9511A10-06-09 Reported Nov 27, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> i <br /> Analyte Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> QC Batch# GC11159513TEXEXB GC111595BTEXEXB GC11159513TEXEXB GC1115958TF_XEXB <br /> Analy Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst G Garcia G Garcia G Garcia G Garcia <br /> MS/MSD # 951181102 951181102 951181102 951181102 <br /> Sample Conc . N D N D N D N D <br /> Prepared Date 11/15/95 11/15/95 11/15/95 11/15/95 <br /> Analyzed Date 11/15/95 11/15/95 11/15/95 11/15/95 <br /> Instrument I D # GCHP1 GCHP1 GCHP1 GCHP1 <br /> Cone Spiked 0 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg <br /> Result 016 017 017 051 <br /> MS % Recovery 80 85 85 85 <br /> Dup Result 015 016 016 046 <br /> MSD % Recov 75 80 80 77 <br /> RPD 65 61 61 10 <br /> RPD Limit 0-50 0-50 0-50 0-50 <br /> LCS # BLK111595 BLK111595 BILK 111595 BLK111595 <br /> Prepared Date 11/15/95 11/15/95 11/15/95 11/15/95 <br /> Analyzed Date 11/15/95 11/15/95 11/15/95 11/15/95 <br /> Instrument I D # GCHP1 GCHP1 GCHP1 GCHP1 <br /> Cone Spiked 0 20 mg/Kg 0 20 mg/Kg 0 20 mg/Kg 0 60 mg/Kg <br /> LCS Result 018 018 018 053 <br /> LCS % Recov 90 90 90 88 <br /> MS/MSD <br /> LCS <br /> Control Limits 55-145 47 149 47 155 56-140 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br />. S UOIA 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 /> Mark J Cargasacchi <br /> Project Manager •'MS=Matrix Spike, MSD=MS Duplicate,RPD=Relative%Difference 9511A10 TTT <9> <br />