Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget lane Walnut Creek CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> �rhel� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX (916)921 0100 <br /> Pacific Environmental Group Client Project ID 311-174 1A/BP #5447, Stockton <br />' 2025 Gateway Place, Suite 440 Matrix Solid <br /> San Jose, CA 95110 <br /> Attention Jae Muzzlo Work Order# 9802B86 01-12 Reported Feb 27, 1998 <br /> r <br /> QUALITY CONTROL DATA REPORT <br />' Analyte Diesel MTBE MTBE <br /> QC Batch# GCO218980HBPEXC MS022098MTBEEXA MS021998MTBEEXB <br /> Analy Method EPA 8015M EPA 8260 EPA 8260 <br />' Prep Method EPA 3550/DHS NA NA <br /> Analyst G Fish L Duong L Duong <br />' MS/MSD # 980297503 9802BB607 9602A2601 <br /> Sample Cone N D N D N D <br /> Prepared Date 2/18/98 2/20/98 2/19/98 <br /> Analyzed Date 2/19/98 2/23/98 2/19/98 <br /> Instrument I D # GCHP19A H6 H6 <br /> Conc Spiked 25 mg/Kg 2500 ug/Kg 2500 mg/Kg <br /> Result 17 2310 2000 <br /> MS % Recovery 68 92 80 <br /> Dup Result 18 2510 1850 <br />' MSD % Recov 72 100 74 <br /> RPD 57 83 78 <br /> RPD Limit D-50 0-25 0-25 <br /> LCS # BLK021998 LCS022398 BLK022098 <br /> Prepared Date 2/19/98 2/23/98 2/20/98 <br /> Analyzed Date 2/21/98 2/24/98 2/20/98 <br /> Instrument I D # GCHP19B F3 H6 <br /> Cone Spiked 25 mg/Kg 2500 mg/Kg 2500 ug/Kg <br /> LCS Result 19 2000 2400 <br /> LCS % Recov 76 80 96 <br /> 50-150 60-140 60-140 <br /> LCS 60-140 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 /> fortified with known quantities of specific compounds and subjected to the entire analytical prod 1E If <br /> it the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> Tad Granicher interference,the LCS recovery is to be used to validate the batch <br /> Project Manager *MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative% Difference 98021386 PPP <3> <br />