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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> (415) 364-9600 - FAX(415) 364-9233 <br /> r. }fuv f^ :�r;V}o .:u',.u. Y,,�` M ;�^"i'}£}: , 4 <^' r' .. v... 5 ).,, v� . +.r , y •iL�� „ <br /> 'RESIVAV rr 4 ,,. c 4rrr. k,.tt .e w > Sn w n,rxa'# r,rc�,.rkr;c <br /> Client Project ID W0322 00,J B Terminal, Tracy <br /> 1710 Main Street Matrix Water <br /> Escalon, CA 95320 <br /> Attention Lois Frantz CC Sample Group 3G55201 n, Y Reported Jul 22, 1993 h} <br /> � <br /> {v'r rxv,r4r v n ♦ ,rrh <br /> OUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene X enes <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: J Fontcha J Fontcha J Fontcha J Fontcha <br /> Conc. Spiked: 20 20 20 50 <br /> Units- Ng/L u9/L fag/L pg/L <br /> LCS Batch#- LCS072093 LCS072093 LCS072093 LCS072093 <br /> Date Prepared: 7/20/93 7/20/93 7/20/93 7/20/93 <br /> Date Analyzed: 7/20/93 7/20/93 7/20/93 7/20/93 <br /> Instrument I.D #: GCHP-5 GCHP-5 GCHP-5 GCHP-5 <br /> LCS % <br /> Recovery: 108 102 97 97 <br /> Control Limits: 70-130 70.130 70-130 70-130 <br /> r , r v• 4 r% ` r r v • fv r }} v r}ix�r$ r ' 4 % v ]n}}�]r v A <br /> 2 r rSr'itf iv r'i .. rt ren v� <vv <br /> r S? , r r v ♦.. yr ' 4 Y ♦ r} +. n r r4.i i ♦ M1 r...,r r v n,Av ♦,v 4rr4rw r rx Jnr.t'rf <br /> MS/MSD <br /> Batch #. 3070524 3070524 3070524 3070524 <br /> Date Prepared' 7/20/93 7/20/93 7/20/93 7/20/93 <br /> Date Analyzed: 7/20/93 7/20/93 7/20/93 7/20/93 <br /> Instrument I.D.# GCHP-5 GCHP 5 GCHP-5 GCHP-5 <br /> Matrix Spike <br /> %Recovery. 110 105 105 102 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 115 105 105 102 <br /> Relative% <br /> Difference. 44 0 0 00 00 <br /> SEQUOIA ANALYTICAL Please Note <br /> The LCS is a control sample of known,interferent free matrix that is analyzed using the same reagents, <br /> 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 OC limits for MS/MSD's are advisory only <br /> and are not used to accept or reject batch results <br /> Vickie Tague <br /> Project Manager 3055201 WAT e2> <br />