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680 Chesapeake Drive Redwood City CA 94063 (650)364-9600 FAX(650)364 9233 <br /> Sequoia 404 N WlBet Lane Walnut Creek CA 94598 (915)988-9600 FAX(925)988-9673 <br /> 819 Striker Avenue Sulte 8 Sacramento CA 95834 (916)921-9600 FAX(916)921-Oloo <br /> �tflll� Analytical 1455 McDowell Blvd North Ste D Petaluma.CA 94954 (707)792-1865 FAX(707)792-0342 <br /> Blaine Tech Services, Inc Client Project ID Shell 1267 Country Club <br /> 1680 Rogers Ave Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thle Work Order# 9811690-01-06 Reported Dec 2, 1998 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Gasoline <br /> QC Batch# 8110270 <br /> Anally Method EPA 8015M/8020M <br /> Prep Method EPA 5030 <br /> Analyst - <br /> MS/MSD # P811163-01 <br /> Sample Conc N D <br /> Prepared Date 11/17/98 <br /> Analyzed Date 11/17/98 <br /> Instrument I D # - <br /> Conc Spiked 1000ug/L <br /> Result 983 <br /> MS % Recovery 983 <br /> Dup Result 982 <br /> MSD % Recov 982 <br /> RPD 0102 <br /> RPD Limit 0-12 <br /> LCS # LCS111798 <br /> Prepared Date 11/17/98 <br /> Analyzed Date 11/17/98 <br /> Instrument I D # - <br /> Conc Spiked 10aopg/L <br /> LCS Result 970 <br /> LCS % Recov 97 <br /> 53-146 <br /> LCS 79-127 <br /> Control Limits <br /> Please Note <br /> SEQrt24 <br /> NALYTICAL The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> 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 /> interference,the LCS recovery is to be used to validate the batch <br /> e gy Penner <br /> ject Manager **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative% Difference 9811690 BLA <2> <br />