Laserfiche WebLink
' Sequoia 680 Chesapeake Drive Redwood City CA 94063 (4 15) 364 9600 FAX(415) 364 9233 <br /> JqrD1900 laces Avenue Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> Analytical 819 Stnker Avenue Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> PFRESNA Client Project ID 150070 01, Chase Chevrolet <br /> 1710 Main Street Matrix Solid <br /> Escalon, CA 95320 <br /> ' Attention Greg Stahl OC Sample Group 4F37901-02 Reported Jun 17, 1994, <br /> ' QUALITY CONTROL DATA REPORT <br /> ' ANALYTE 1,1-Dichloro- Trichloro- Chloro- <br /> ethane ethane benzene <br /> Method: EPA 8010 EPA 8010 EPA 8010 <br /> Analyst- H Porter H Porter H Porter <br /> MS/MSD <br /> ' Batch#' 4F67801 4F67801 4FG7801 <br /> Date Prepared. 6/13/94 6/13/94 6/13/94 <br /> Date Analyzed* 6/13/94 6/13/94 6/13/94 <br /> ' Instrument I.D#: GCHP-9 GCHP-9 GCHP-9 <br /> Conc Spiked: 25M/kg 25 N9/kg 25la9/kg <br /> Matrix Spike <br /> % Recovery 60 92 68 <br /> Matrix Spike <br /> ' Duplicate% <br /> Recovery: 52 88 64 <br /> Relative% <br /> Difference, 14 44 61 <br /> LCS Batch#- <br /> - - <br /> _ <br /> ' Date Prepared:- <br /> Date Analyzed. <br /> Instrument LD # - - - <br /> ' LCS% <br /> Recovery: - - <br /> ' %Recovery <br /> Control Limits* 28-167 35-146 38-150 <br /> ' Please!Vote <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 fail within specified control limits due to matrix <br /> iriterference,the LCS recovery is to be used to validate the batch <br /> Vickie TagUe Clark <br /> ' Project Manager 4F37901 WAT <11> <br />