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Sequoia 680 Chesweake Dave Redwood Gty,CA 94063 (415) 364.9600 FAX(415)364-9233 <br /> (D— Walt <br /> Analytical 4o41v ��LanenuCreekCA (51 ) 988-9600 FAX(51 )988 9673 <br /> $19 5tnker Avenue,5wte 8 Sacramento, <br /> o,CA 95834834 (9166) 921-9600 FAX(9166)921 0100 <br /> ro it, Inc Client p 'a a '#`7 <br /> A K ...;vK�nYJ <br /> 9ro ect iD. �ocon#7-Oi37 <br /> 1 <br /> 1050 Melody Lane, Ste 160 Matrix Air <br /> n Roseville, CA 95678 <br /> Attention Mark Naugle OC Sample Group 5110818-0819 Reported- Nov 17, 1995 <br /> rn ; <br /> 3.3Jw'...aar'",. i v <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Ethyl- <br /> Benzene Toluene Benzene Xylenes <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 <br /> Analyst: B Williams B Williams B Williams 8 Williams <br /> Concentration <br /> Spiked: 2.0 mg/ms 20 mg/ms 2.0 mg/ms a 0 mg/m3 <br /> LCS Batch#: LCS111495 LCS111495 LCS111495 LCS111495 <br /> Date Prepared: 11/14/95 11/14/95 11/14/95 11/14/95 <br /> Date Analyzed: 11/14/95 11/14/95 11/14/95 11/14/95 <br /> Instrument I.D.#: GCHP-2 GCHP 2 GCHP-2 GCHP-2 <br /> . LCS % <br /> Recovery: 88 as 90 90 <br /> Control Limits: 75-125 75-125 75-125 75-125 <br /> }i^'r'L`2;,:7x'{M,y'S°�d`n"^ ^7';-.`'"rhd^ro+•c^sw^'•'y n`*w��`y Pd"b ter,y•.y,v,`xN a +Exp m ''` r x A;T?`v'aS, `i`"r++,:,r�+svm,{roxw:v+giicca; cry+coo ^r^'� fi <br /> .,. Y} JJ 'SE]J J{Y' i} }l� it J. iv{fiyrr' Q{%}$} yf J.v { {'{ h�� `�%$s},• i� ... >•c�i�A]K tiY�fi4��?A^W'} >^4� <br /> +.cx • . �' <br /> MS/MSD <br /> Batch#: BS111495 SS111495 BS111495 BS111495 <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: a5 95 65 85 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 80 85 85 85 <br /> Relative% <br /> Difference: 61 00 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 /> LL validation of sample batch remits Due to matrix effects,the CC limits for MS/MSD's are advisory only <br /> Linda C Schneider and are not used to accept or reject batch results <br /> Project Manager <br /> 5110818 FUG <2> <br />