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' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> %07 Analytical 819 Stnker Avenue,Suite 8 Sacramento, CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc Client Project I© Chevron 9-2033 /970519-1-12 <br /> 1680 Rogers Avenue Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9705B57-01 Reported Jun 4, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte 1,1-Dichloro- Trichloro- Chloro- <br /> ethane ethene Benzene <br /> QC Batch# GCO52997801008A G0052997801008A GCO52997801008A <br /> Analy Method* EPA 8010 EPA 8010 EPA 8010 <br /> Prep Method EPA 5030 EPA 5030 EPA 5030 <br /> Analyst R Bou-Salman R Bou-Salman R Sou-Salman <br /> MS/MSD # 97052B9701 9705289701 9705289701 <br /> Sample Conc N D N D N D <br /> Prepared Date 5/29/97 5/29/97 5/29/97 <br /> Analyzed Date 5/29/97 5/29/97 5/29/97 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked 25 Ng/L 25 pg/L 25 pg/L <br /> Dilution Factor 1 1 1 <br /> Result 24 24 24 <br /> �NIS %Recovery 96 96 96 <br /> Dup Result 25 24 24 <br /> MSD % Recov 100 96 96 <br /> RPD 41 00 00 <br /> RPD Limit 0-25 0-25 025 <br /> LCS # BLK053097 BLK053097 BLK053097 <br /> Prepared Date' 5/30/97 5/30/97 5/30/97 <br /> Analyzed Date 5/30/97 5/30/97 5/30/97 <br /> Instrument I D # GCHP8 GCHP8 GCHP8 <br /> Conc Spiked 25ug/L 25ug/L 25pg/L <br /> LCS Result- 25 23 23 <br /> LCS % Recov 100 92 92 <br /> 60-140 60-140 60-140 <br /> LCS 65-135 70-130 70-130 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> EQ O A ALYTICAL 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 /> Please <br /> the LCS recovery is to be used to validate the batch <br /> P gg a er *MS=Matrix Spike,MSD=MS Duplicate, RPD=Relative%Difference <br /> P J ct rtager 9705B57 BLA a9> <br />