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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> y, 404 N Wtget Lane Walnut Creek CA 94598 (510) 988 9600 FAX (510)988 9673 <br /> 14W Analytical 819 Striker Avenue,Suite 8 Sacramento CA 95834 (916) 921 9600 FAX(916) 921 0100 <br /> Blaine Tech Services, Inc Client Project ID Shell, Tracy/960820-J3 Jan 0, 1900 <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Fran Thle Work Order# 9648D08-01 Reported Sep 5. 1996 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-{]lchloroethene Trichloroethene Benzene <br /> Toluene Chloro- <br /> benzene <br /> QC Batch# MS0903968260F3A MS0903968260F3A MS0903968260F3A MS0903968260F3A MS0903968260F3A <br /> Analy Method EPA 8260 EPA 8260 EPA 8260 EPA 8260 EPA 8260 <br /> Prep Method N/A N/A N/A N/A N/A <br /> Analyst L Duong L Duong L Duong L Duong L Duong <br /> MS/MSD# 960887304 9608B7304 960887304 9608B7304 9608B7304 <br /> Sample Conc N D N D N D N D - <br /> Prepared Date s/3/96 9/3/96 <br /> Analyzed Date 9/3/96 9/3/99 s/3/� F3 <br /> instrument I D # F3 F3 F3 F3 <br /> Conc Spiked 50 fig/L 50 fug/L 50 fug/L 50 f19/L 50 f/g/L <br /> Result 51 47 49 49 49 <br /> MS % Recovery* 102 94 98 98 98 <br /> Dup Result- 48 48 49 50 50 <br /> MSD %Recov 96 96 98 100 100 <br /> RPD 61 21 00 20 20 <br /> RPD Limit' 0-25 0-25 0-25 0-25 0-25 <br /> I-CS # BLK090396 BLK090396 BLK090396 BLK090396 BLK090396 <br /> Prepared Date - - - <br /> Analyzed Date. 9/3/96 9/3/96 9/3/96 9/3/96 9/3/96 <br /> Instrument I D # F3 F3 F3 F3 F3 <br /> Conc Spiked 50 fug/L 50 fig/L 50pg/L 50 fug/L 50ug/L <br /> LCS Result. 50 49 51 52 50 <br /> LCS % Recov 100 98 102 104 100 <br /> MS/MS/MSD 60-140 60-140 60-140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 70-130 70"130 <br /> Control Ll Its <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> OIA NALYTICAL preparation,and analytical methods employed for the samples The matrix spike 1s an aliquot of sample <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure It <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 /> eggy Penner "MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative%DFfference <br /> P96osnoa BLA <3> <br /> Project Manager <br /> g�� <br />