Laserfiche WebLink
' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364-9600 FAX(415) 364 9233 <br /> 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Stnker Avenue,Suite B Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> RESNA Client Project ID 150070 01, Chase Chevrolet k <br /> 1710 Main Street Matrix Liquid <br /> ' Escalon, CA 95320 <br /> -,Attention Greg Stahl OC Sample Group 4F33301 Reported Jun 20,11994i <br /> QUALITY CONTROL DATA REPORT <br /> ' ANALYTE Benzene Toluene Ethyl xylenes Diesel <br /> Benzene <br /> Method EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 8615 <br /> Analyst. J Minkel J Minkel J Minkel J Minkel A Nagra <br /> MS/MSD <br /> ' Batch# 4F39112 4F39112 4F39112 4F39112 4F32801 <br /> Date Prepared - - - 6/8/94 <br /> Date Analyzed 6/8/94 6/8/94 6/8/94 6/8/94 6/11/94 <br /> ' Instrument I D # GCHP-3 GCHP-3 GCHP-3 GCHP-3 GCHP-5 <br /> Conc Spiked 1opg/L 10,ug/L 10ug/L 30pg/L 6D0pg/L <br /> Matrix Spike <br /> °,6 Recovery 116 100 106 103 67 <br /> Matrix Spike <br /> ' Duplicate % <br /> Recovery: 99 98 1D0 160 57 <br /> Relative % <br /> ' Difference 11 2 0 00 30 16 <br /> ' LCS Batch# - - - - <br /> ' Date Prepared- <br /> Date Analyzed <br /> Instrument I D # - - - <br /> ' LCS % <br /> Recovery - <br /> ' % Recovery <br /> Control Limits 71-133 72-128 72-130 71-120 28-122 <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 procedure ff <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due 10 matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Vickie Tague Clark <br /> ' Project Manager 4F33301 WAT <4> <br />