Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City, CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> Analytical 1900 Bates Avenue,Suite L Concord CA 94520 (510) 686 9600 FAX(510)686 9689 <br /> S 19 Striker Avenue Suite 8 Sacramento CA 95834 (916) 92 t 9600 FAX(916)921 0100 <br /> WPM Services Client project Ib Unocal #5098, 5606 pacific Ave, Stockton <br /> 2401 Stanwell Dr, Ste 400 Matrix Liquid <br /> Concord, CA 94520 <br /> Attention Avo Avedessian QC Sample Group 4061378-81 Reported JUI 13, 1994 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE 1,1-Dichloro- Tnchloro- Chlora- <br /> ethene ethene benzene <br /> Method EPA 8010 EPA 8010 EPA 8010 <br /> Analyst K Ndi K Nill K Ndl <br /> MS/MSD <br /> Batch# 4061081 4061081 4061081 <br /> Date Prepared 7/5/94 7/5/94 7/5/94 <br /> Date Analyzed 7/5/94 7/5/94 7/5/94 <br /> Instrument I D # HP5890/6 HP5890/6 HP5890/6 <br /> Conc Spiked 10Erg/L 10jug/L 10Ng/L <br /> Matrix Spike <br /> %Recovery 91 94 90 <br /> is Matrix Spike <br /> Duplicate% <br /> Recovery 82 100 96 <br /> Relative % <br /> Difference 10 62 65 <br /> LCS Batch# LCS070594 LCS070594 LCS070594 <br /> Date Prepared 7/5/94 7/5/94 7/5/94 <br /> Date Analyzed 7/5/94 7/5/94 7/5/94 <br /> Instrument I D # HP5890/6 HP5890/6 HP5890/6 <br /> LCS % <br /> Recovery 38 51 48 <br /> Recovery <br /> Control Limits 28-167 35-146 38-150 <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, #1271 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 /> K <br /> interference,the LCS recoveryis to be used to validate the batch <br /> p <br /> Project nagger <br /> 4061378 MPD <9> <br />