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Sequoia 680 Chesapeake Dnve Redwood Gty,CA 94063 (415) 364-9600 FAX(415) 364-9233 <br /> Analytical 404 N Wig"Lane Com`'CA 94598 (510) 988-9600 FAX(510)988 9673 <br /> 819 Stnker Avenue,Swte 8 Sacramento,CA 95834 (916) 921-9600 FAX(916)921-0100 <br /> c� Pidlict. reugro'W64 Inc. �Ilent D E&6n#7-0137 <br /> 1050 Melody Lane, Ste 160 Matrix Air <br /> Roseville, CA 95678 <br /> Attention Mark Naugle QCSample Group 5110820-0821 <br /> Reported Nov 14, 1995 <br /> :�'n,..i>r na:f4""w <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> i <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: B Williams B Williams B.Williams B Williams <br /> Concentration <br /> Spiked: 2.0 mg/mg 20 mg/ml 2.0 mg/m, 6.0 mg/mm <br /> LCS Batch#: LCS111495 LCS111495 LCS111495 LCS111495 <br /> Date Prepared: 11/14/95 11/14/95 11/14/95 11/14/955 <br /> Date Analyzed: 11/14/95 11/14/95 11/14/95 11/14/95 <br /> Instrument l.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> LCS% <br /> Recovery: 86 88 90 90 <br /> Control Limits: 75-125 75-125 75-125 75-125 <br /> ,s�'.'+sA rrc Ctm.'.N.`w.:ti,,.:w.Y�,hv.;..s`r'4...2:%o3.Y.:Seo...',�xs+.��`.:'� s+ d`r�'n�k•f'a,a'�' Y .c:'a3`.r F {n�iA ^� }�4"."."sa�c sr` .�"" r +` r s r ry x'"' <br /> MS/MSD <br /> Batch#: BSI 11495 BS111495 BSI 11495 BSI 11495 <br /> Date Prepared: 11/14/95 11/14/95 11/14/95 11/14/95 <br /> Date Analyzed: 11/14/95 11/14/95 11/14/95 11/14/95 <br /> Instrument I.D.#: GCHP-2 GCHP-2 GCHP-2 GCHP-2 <br /> Matrix Spike <br /> %Recovery: as 85 85 85 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: so s5 as as <br /> Relative% <br /> Difference: 61 00 410 00 <br /> ERUOIA ANALYTICAL Please Note <br /> preparation <br /> is a control ytiow of known,interferent <br /> ploye rent free matrix that is analyzed using the same reagents, <br /> re aratton and anal cal methods employed d for the samples The LCS 96 recovery data is used for <br /> validation of sample batch resents Due to matrix effects,the QC limits for MS/MSD's are advisory only <br /> 7un�daC Schneider and are not used to accept or refect batch results <br /> Project Manager <br /> 5110820 FUG <2> <br />