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/ \ Sequoia 680 Chesapeake Drive Redwood GM 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 /> Analytical 819 Sinker Avenue,Suite 8 Sacramento,CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> Blaine Tech Services, Inc ' Client Project ID rr Chevron 9-8264/}970521-H3 v <br /> 1680 Rogers Avenue Matrix Liquid <br /> San Jose, CA 95112 <br /> Attention Fran Thie Work Order# 9705C27 -01 Reported Jun 9, 1997 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Beryllium Cadmium Chromium Nickel <br /> QC Batch#: ME052997601OMDA ME052997601OMDA ME052997601OMDA ME052997601OMDA <br /> Analy Method- EPA 6010 EPA 6010 EPA 6010 EPA 6010 <br /> Prep Method EPA 3010 EPA 3010 EPA 3010 EPA 3010 <br /> Analyst Fi Butler R Butler R Butler R Butler <br /> MS/MSD#. 9705D6401 9705D6401 9705D6401 9705D6401 <br /> Sample Cone : N D N D N D N D <br /> Prepared Date- 5/29/97 5/29/97 5/29/97 5/29/97 <br /> Analyzed Date 5/29/97 5/29/97 5/29/97 5/29/97 <br /> Instrument I D # MTJA2 MTJA2 MTJA2 MTJA2 <br /> Cone Spiked 1 0 mg/L 1 0 mg/L 1 0 mg/L 10 mg/L <br /> Result 10 10 10 10 <br /> MS %Recovery 100 100 100 100 <br />• Dup Result: 10 10 10 10 <br /> MSD % Recov .. 100 100 100 100 <br /> RPD 00 00 00 00 <br /> RPD Limit 0-20 0-20 0-20 D-20 <br /> LCS #. BLK052997 BLK052997 BLK052997 BLK052997 <br /> Prepared Date 5/29/97 5/29/97 5/29/97 5/29/97 <br /> Analyzed Date 5/29/97 5/29/97 5/29/97 5/29/97 <br /> Instrument I D #' MTJA2 MTJA2 MTJA2 MTJA2 <br /> Cone Spiked: 1 0 mg/L 10 mg/L 10 mg/L 10 mg/L <br /> LCS Result 10 10 10 10 <br /> LCS % Recov .. 100 100 100 100 <br /> 60-120 80-120 80-120 80-120 <br /> LCS 80.120 80-120 80-120 80-120 <br /> Control Limits <br /> Please Note <br /> The LCS is a control sample of known,Interferent-tree matrix that Is analyzed using the same reagents, <br /> UOI ANALYTICAL 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 enner <br /> ect Manager ""MS=Matrix Spike,MSD=MS Duplicate,RPD=Relative%Difference 9705C27 BLA <11> <br />