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 W0327 00, Knowles Property <br /> 1710 Main Street Matrix Water <br /> Escalon, CA 95320 <br /> Attention John Lane QC Sample Group 3LA5201-7 Reported Jan 4, 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#: 3121055 3121055 3121055 3121055 <br /> Date Prepared. - - - <br /> Date Analyzed- 12/27/93 12/27/93 12/27/93 12/27/93 <br /> Instrument I D #. GCHP-1 GCHP-1 GCHP-1 GCHP-1 <br /> Conc Spiked 5 0 pg/L 5 0 pg/L 5 O ug/L 15 pg/L <br /> Matrix Spike <br /> % Recovery 114 108 112 113 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery' 114 108 112 113 <br /> Relative% <br /> Difference: 00 00 0 0 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 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 If <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> i interference,the LCS recovery is to be used to validate the batch <br /> Vickie TagTe <br /> Project Manager 3LA5201 WAT .4!2> <br />