Laserfiche WebLink
Sequoia 680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> 404 N Wiget Lane Walnut Creek CA 94598 (510)988-9600 FAX(510)988-9673 <br /> �„� Analytical 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)921-9600 FAX(916)921 0100 <br /> 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> • <br /> Blaine Tech Services Client Project ID Chevron 9-20331980521-L1 <br /> 1680 Rogers Avenue <br /> San Jose, CA 95112 <br /> Attention Fran Thie QC Sample Group 9805E75-01 Reported Jun 3 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 8010/601 <br /> Analyst M McLachlan <br /> ANALYTE 1,1-DCE TCE Chlorobenzene <br /> QC Batch # GC0601980VOA09A <br /> Sample No 980SE51-03 <br /> Date Prepared 5130198 5130198 5/30/98 <br /> Date Analyzed 5/31198 5131198 5/31198 <br /> Instrument I D # gchp09 9chp09 9chp09 <br /> Sample Cone , ug/L N D N D N D <br /> Conc Spiked ug/L 25 25 25 <br /> Matrix Spike, ug1L 16 21 22 <br /> % Recovery 64 84 88 <br /> Matrix <br /> Spike Duplicate, ug/L 18 20 21 <br /> % Recovery 72 80 84 <br /> Relative % Difference 12 49 47 <br /> RPD Control Limits 0-50 0-50 0-50 <br /> LCS Batch# VWBLK060198BS <br /> Date Prepared 6/1/96 6/1198 6/1/98 <br /> Date Analyzed 6/1/98 611/98 6/1198 <br /> Instrument I D # gchp09 gchp09 gchp09 <br /> Conc Spiked ug/L 25 25 25 <br /> Recovery, ug/L 20 24 23 <br /> LCS % Recovery 80 96 92 <br /> Percent Recovery Control Limits <br /> MS/MSD 65 135 70130 70130 <br /> LCS 65 135 70130 70130 <br /> Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> Please Note <br /> The LCS is a control sample of known interferent free matrix that is analyzed using the same reagents <br /> •SEQUOIALYTICAL preparation and analytical methods employed for the samples The matrix spike is an alioiot 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 /> gory interference the LCS recovery is to be used to vaiidate the batch <br /> � I <br /> f Project Manager <br />