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(9 16) 921-9500 <br /> yv,.r�n..v{ry x. - r `a{ �a ^ -• os`x x ..moo a 4r {e v a 4.. ^v�%` ,. .. ° r <br /> Aegis Environmentl Consultants -Client Project 16' Shell,^14'1 N rEl Dorad6,%Sto6kton <br /> 1; 1050 Melody Lane, Ste 160 Matrix Water <br /> Roseville, CA 95678 <br /> F Attention Paul Graff CC Sample Group 311-0792 Reported Dec 2, 1993 <br /> °U»,.. <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE t Y" <br /> Benzene Toluene Benzene Xylenes <br /> M elhod: EPA 602 EPA 602 EPA 602 EPA 602 <br /> Analyst: chiaravallota Chlaraval.oti Chlaravalloti Chlaravatloti <br /> Concentration <br /> Spiked. 10 ug/L 10 ug/L 10 ug/L 30 ug/L <br /> LCS Batch#- LCS113093 LCS113093 LCS113093 LCS113093 <br /> Date prepared 11/30/93 11/37/93 11/30/93 11/30/93 <br /> Date Analyzed. 11130/93 11/33/93 11/30/93 11/34/93 <br /> Instrument IID.#: HP2 HP2 HPZ HP2 <br /> LCS % <br /> Recovery: 103 100 1011 102 <br /> Control Limits. 80 120 80.120 60 120 80 120 <br /> "kwri <br /> if +ik �K i{aawxxrr r•r M1�}y <br /> rxia,+{{9f ry,4„x>F�LR'la MStSGik�ibi,�.�.Eer i..w xn ay-�..{na,�+..`.Y R+o yr we 1 s `'3%„ • ••• n y40a r<X {ai.{Aniw,Geri%>r�.XtXX�,� ..,.....,, .. . d� {r” r{n a, x {< <br /> MS/NiSD <br /> Batch,#: 3110892 311089Z 3110892 3114892 <br /> Date Prepared. 11/30/93 11/'30/93 11/30/93 11/30/93 <br /> Date Analyzed- 11/30/93 11/30/93 11/30/93 11/30/93 <br /> Instrument 10 #-. HP2 HP2 1`132 HP2 <br /> Matrix Spike <br /> % Recovery: 100 73 100 100 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery 98 e6 99 a3 <br /> Relative % <br /> Difference: 41 16 10 19 <br /> SEQUOIA ANALYTICAL Pleas@ Note <br /> /? The LCS is a contrel&ample of known,interferantiree matrrx that is analyzed using the same reagents <br /> preparation and analytical methods employed for the samples The LCS°5 recovery data as used for <br /> J validation of sample batch retults lZue to matrix effeets the QC lamas for MS/1VISnt3 are advisory only <br /> inda C Schneider and are not used to aeeaPt ar re;eCt b8tCh results <br /> Project Manager <br /> 3110792AEG <2n <br /> • �0 "d E�E+T@Ic:.69T6 'QHS—J1ki�I1h"1�Na;i tiI4i11�38 <br />