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IaEL <br /> sequ6ia 680 Chesapeake Drive Redwood City,CA 94063 (415) 3649600 FAX (415) 364-9233 <br /> €1 19W Bates Avenue,Suite L Concord,CA 94520 (510) 686-9600 FAX (510)686,9689 <br /> low Analytical 819 Striker Avenue,Suite F Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> ...... ockton <br /> n r e <br /> M- es <br /> 1.455 Capitol Mail, 8th Fir I Matrix: Water <br /> Sacramento, CA 95814 <br /> Attention <br /> Laurie Depies OC Sample Group: 503-1167 Reported: Apr 11, 1995 <br /> p <br /> 21 <br /> QUALITY CONTROL DATA REPORT <br /> L JANALYTE <br /> AoenaRhthene Phenanthrene Pyrene Diesel <br /> Method: EPA B310 EPA 8310 EPA 8310 EPA 80 1 5M <br /> Analyst L HAY L Haar L.Haar C.Lee <br /> Concentration <br /> Spiked: 1000 ug/L 250 ug/L 100 ug/L 300 ug/L <br /> LCS Batch#: LCS032895 LCS032895 LCS032895 LCS040495 <br /> Date Prepared: 3/28/95 3/28/95 3/28/95 4/4/95 <br /> Date Analyzed: 3/29/95 3/29/95 3/29/95 4/10/95 <br /> Instrument I.D.#: Gowi GCW1 GCW1 GCHP-3B i. <br /> LCS % <br /> Recovery: 99, 64 96 80 <br /> - <br /> Control Limits: 50-150 50-150 50-150 60 130 <br /> 7 X <br /> .......... <br /> x.-x <br /> .......... <br /> J <br /> MS/MSD <br /> Batch#: BLK032895 BLK032895 BLK032895 BLK040395 <br /> Date Prepared: 3/28/95 3/28/95 3/28/95 4/3/95 <br /> Date Analyzed: 3/29/95 3/29/95 3/29/95 4/11/95 <br /> Instrument I.D.#: GCW1 GCW1 GCW1 GCHP-313 <br /> Matrix Spike <br /> % Recovery: 99 64 96 93 <br /> Matrix Spike <br /> Duplicate <br /> Recovery: 96 60 92 90 <br /> Relative % <br /> Difference: 3. 1 6.5 4.3 3.3 <br /> Please Note: <br /> The LGS is a control sample of known,interferent free matrix that.is analyzed using the same reagents, <br /> .'EQUOIA ANALYTICAL I preparation and analytical methods employed for the samples. The LCS%recovery data is used for <br /> validation of sample batch results. Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results. <br /> Linda C. Schneider �t <br /> Project Manager IL 11 5031167.ERS <5> <br />