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Sequoia 680 Chesapeake Drive Redwood City CA 94063 (415) 364 9600 FAX(415) 364 9233 <br /> (_.�r� 404 N Wiget Lane Walnut Creek CA 94598 (510) 98B 9600 FAX(510)988 9673 <br /> , - Analytical a]9 Sinker Avenue,Suite B Sacramento CA 95834 (916) 921 9600 FAX(916)921 0100 <br /> v v r . . r.ti ♦ r rr♦ 4 v pv 4 v <br /> Blaine Tech Services, Inc Client Project ID Chevron 9-2033, 950526-K2 V h <br /> 985 Timothy Drive Matrix Liquid <br /> San Jose, CA 95133 <br /> Attention Jim Keller Work Order# 9505K10-01-04 Reported Jun 12, 1995 <br /> QUALITY CONTROL DATA REPORT <br /> Analyte. Benzene Toluene Ethyl Xylenes <br /> Benzene <br /> GC Batch#. G0060295BTEX21 B GC060295BTEX21 B G00602958TEX21 B G0060295BTEX21 B <br /> Analy. Method. EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Prep Method- EPA 5030 EPA 5030 EPA 5030 EPA 5030 <br /> Analyst. J Minkel J Minkel J Minkel J Minkel <br /> MS/MSD #- 950SH9506 9505H9506 9505H9506 95051-19506 <br /> Sample Cone : N D ND ND ND <br /> Prepared Date. 6/3/95 6/3/95 6/3/95 6/3/95 <br /> Analyzed Date. 6/3/95 6/3/95 6/3/95 6/3/95 <br /> Instrument I D.#: GCHP21 GCHP21 GCHP21 GCHP21 <br /> Cone Spiked- long/L long/L 10Ng/L 30Pg/L <br /> Result. 89 92 94 27 <br /> MS %Recovery* 89 92 94 90 <br /> Dup Result: 85 88 89 26 <br /> MSD %Recov : 85 88 89 87 <br /> RPD: 46 44 55 38 <br /> RPD Ll m It: 0-50 0-50 0-50 0.50 <br /> LCS #: - - - <br /> Prepared Date: - - - - <br /> Analyzed Date: - - - - <br /> Instrument I D #: - - - <br /> Cone Spiked: - - - <br /> LCS Result: - - - - <br /> LCS %Recov : - - - <br /> MS/MSD <br /> LCS 71-133 72-128 72-130 71-120 <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 /> SU <br /> 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 9 <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 /> P ner <br /> Project Manager **MS=Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference 9505Ki0 BLA <3> <br />