Laserfiche WebLink
` SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 FAX(415) 364-9233 <br /> RESNA Client Project ID 152102 02/TrlValley Growers v v <br /> 1710 Main Street Matra Water <br /> Escalon, CA 95320 <br /> Attention Bill Channell QC Sample Group 3LE9301-3 Reported Jan 20, 1994 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> Method. EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst. R Lister R Lister R Lister R Lister <br /> MS/MSD <br /> Batch# 4010063 4010063 4010063 4010063 <br /> Date Prepared - - - - <br /> Date Analyzed 1/5/94 1/5/94 1/5/94 1/5/94 <br /> Instrument LD # N/A N/A N/A N/A <br /> Conc Spiked 50Ng/L 50pg/L 50pg/L 15yg/L <br /> Matrix Spike <br /> % Recovery. 112 los 114 113 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery. 110 106 112 113 <br /> Relative% <br /> Difference is 19 18 00 <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 <br /> Please Note <br /> The LCS is a control sample of known,interferent free matnx 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 If <br /> the recovery of analytes from the matrix spike does not fail within specified control limits due to matrix <br /> interference,the LCS recovery is to be used to validate the batch <br /> Vlckle Tag e <br /> Project Manager 3LE9301 WAT <2> <br />