Laserfiche WebLink
® 680 Chesapeake Drive Redwood City CA 94063 (650)364-%00 FAX(650)364-9233 <br /> Sequoia 404 N Wlget Lane Walnut Creek CA 94598 (925)988-9600 FAX(925)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 /> Blaine Tech Services Client Project ID Shell 6131 PacifidAve <br /> 1680 Rogers Avenue <br /> San Jose, CA 95112 <br /> Attention Fran Thie QC Sample Group 9902D75-01-02, 06, 08 Reported Naar 29, 1999 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 80_15 <br /> —— -- Analyst RG -- —�� — --- — -- <br /> ANALYTE Gasoline <br /> QC Batch# GC030799STEX22A <br /> Sample No GW9902D65-11 <br /> Date Prepared 317199 <br /> Date Analyzed 317199 <br /> Instrument I D # GCHP22 <br /> Sample Cone ug/L N D <br /> Cone Spiked ug/L 250 <br /> Matrix Spike, ug1L 190 <br /> % Recovery 76 <br /> Matrix • <br /> Spike Duplicate, ug1L 220 <br /> % Recovery 88 <br /> Relative % Difference 15 <br /> RPD Control Limits 0=25 - <br /> LCS Batch# GC030799BTEX22A <br /> Date Prepared 317199 <br /> Date Analyzed 3/7/99 <br /> Instrument I D # GCHP22 <br /> Cone Spiked ug/L 250 <br /> LCS Recovery, UglL 23V <br /> LCS % Recovery 92 <br /> Percent Recovery Control Limits <br /> MS/MSD 60140 <br /> LCS 70 130 <br />— Quality Assurance Statement All standard operating procedures and quality control requirements have been met <br /> Please(dote <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 /> f fortified with known quantities of specific compounds and subjected to the entire analytical procedure If <br /> h <br /> the recovery of analytes from the matrix spike does not fall within specsfied control limits due to matrix <br /> interference the LCS recovery is to be used to validate the batch <br /> Ind d!1 i�lnly�f� <br /> Project Manager <br />