Laserfiche WebLink
A ,pp 680 CNhesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364-9233 <br /> Sequoia 404 Wiget Lane Walnut Creek,CA 94598 (925)988-9600 FAX(925)988-9673 <br /> Analytical <br /> 819 Striker Avenue Suite 8 Sacramento CA 95834 (916)9Z1-9600 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 1071 N Main St <br /> 1680 Rogers Ave <br /> San Jose, CA 95112 <br /> Attention Fran Thie QC Sample Group 9810727-01 Reported Oct 23, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Liquid <br /> Method EPA 8020 <br /> Analyst AM <br /> ANALYTE Benzene Toluene Ethylbenzene Xylenes <br /> QC Batch# GC101798BTEX2IA <br /> Sample No GW9810A18-10 <br /> Date Prepared 10/17/98 10/17/98 10/17/98 10/17/98 <br /> Date Analyzed 10/17/98 10/17/98 10/17/98 10/17/98 <br /> Instrument I D# GCHP21 GCHP21 GCHP21 GCHP21 <br /> Sample Cone,ug/L N D N D N D N D <br /> Conc Spiked, ug/L 10 10 10 30 <br /> Matrix Spike, ug/L. 12 11 11 34 <br /> %Recovery 120 110 110 113 <br /> Matrix <br />•pike Duplicate, ug/L 100 100 100 30 <br /> % Recovery 1000 1000 1000 1000 <br /> elative% Difference 18 9 5 95 12 <br /> RPD Control Limits 0-25 0-25 0-25 0-25 <br /> LCS Batch# GC101798BTEX21A <br /> Date Prepared 10/17/98 10/17/98 10/17/98 10/17/98 <br /> Date Analyzed 10/17/98 10/17/98 10/17/98 10/17/98 <br /> Instrument 1 D# GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone Spiked, ug/L 10 10 10 30 <br /> LCS Recovery, ug/L 11 11 100 31 <br /> LCS% Recovery 110 110 1000 103 <br /> Percent Recovery Control Limits <br /> MSIMSD 60-140 60-140 60-140 60-140 <br /> LCS 70-130 70-130 70-130 70-130 <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 /> oe_N SE I ANALYTICAL The <br /> and analytical methods employed for the samples The matnx 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 /> interference the LCS recovery is to be used to validate the batch <br /> P ggy enner <br /> Pr Manager <br />