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h' Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (415) 364 9600 FAX(415) 364 9333 <br /> 4D— 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 /> pnrr i v. v v . n n.nurr, r i rtvi}` r ntyry v�'S},`v'4,'4iS ✓ >+4 rJr nw Ji.L`+4in Ov ' rl\S V4U..f .r.n'}`{ <br /> ?,Blaine Tech Services, Inc Y v }n Client Project ID Chevron 9-4183/}960515-A2 <br /> 1;985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 o <br /> Attention Jim Keller Work Order# 9605C36-03 Reported May 29, 1996 t <br /> r <br /> QUALITY CONTROL DATA REPORT <br /> Analyte: 1,2,4-Trtchloro 4-Chloro-3 Acenaphthene 4-Nitrophenol <br /> benzene Methylphenol <br /> OC Batch#: MS0522968270EXA MS0522%U70EXA MS0522968270EXA MS0522968270EXA <br /> Analy Method: EPA 8270 EPA 8270 EPA 8270 EPA 8270 <br /> Prep. Method: EPA 3510 EPA 3510 EPA 3510 EPA 3510 <br /> Analyst: B Pitamah B Pitamah B Pitamah B Pitamah <br /> MS/MSD #: 96o5A2603 QW5A2W3 96o5A26M 9605A2603 <br /> Sample Conc • N D N D N D N D <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> instrument I D #: F4 F4 F4 F4 <br /> Conc Spiked: 200ps/L mug/L zoo pg/L 20opg/L <br /> Result. 150 130 170 69 <br /> MS% Recovery: 75 65 85 35 <br /> Dup Result. 160 130 180 82 <br /> MSD%Recov. 80 65 90 41 <br /> RPD: 65 00 57 17 <br /> RPD Limit: 0-18 0-20 0-18 047 <br /> LCS#: BLK052296 BLK052296 BLK052296 BLK052296 <br /> Prepared Date: 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Analyzed Date. 5/22/96 5/22/96 5/22/96 5/22/96 <br /> Instrument 1.0 #: F4 F4 F4 F4 <br /> Conc Spiked: 200 jig/L 200 pg/L 200ug/L 200pg/L <br /> LCS Result. 160 150 160 33 <br /> LCS %Recov : 80 75 80 17 <br /> LCS 39-98 23-97 46-118 10 to 80 <br /> Control Limits <br /> Please Note <br /> The LCS 1s a control sample of known,interferent-free matrix that is analyzed using the same reagents, <br /> O 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 /> Peg y **MS=Matrix Spike,MSD=MS Duplicate,FRPD=Relative%Difference <br /> ro Manager Page 2 of 3 9605C36 BLA <6> <br />