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Sequoia 680 Chesapeake Drive Redwood City,CA 94063 (650) 364 9600 FAX(650)364 9233 <br /> 404 N Wiget Lane Walnut Creek,CA 94598 (510) 988 9600 FAX(510)988 9673 <br /> �,Il�► Analytical 819 Striker Avenue,Suite 8 Sacramento,CA 95834 (916) 92t-9600 FAX(916)921-0100 <br /> it <br /> `>vi vti tv ]]Ss A t xwirn ~tw r�vv> tin,v , tir rr. rr Ftir xv ,r " 1 M.vv x>r„Jtitirvru r>v x`rvvr r r 4�>rr vxv r>> } ,r»> r <br /> nv <br /> r EnvirosVN r' rx r m4dent Project IDr Shell 6131 Pacific,N$tocicton <br /> 270 Perkins Ave Matrix Solid : <br /> Sonoma, CA 954765 <br /> s Attention J Gaarder Work Order# 9709009-04-16 Reported Oct 6, 1997 <br /> x� r l♦ t` r Y� van• r nhr> > r ,>} v <br /> y,ury, � , YF `• v . vu, ,,�, rn rr rx, ,,.,,„a„x, H .,, r ,w> rr .,. ,,. ,.>or .. xrr .. .. r a u r v .. <br /> QUALITY CONTROL DATA REPORT <br /> Analyte Methanol Ethanol lso-Propanol w <br /> QC Batch#: G00929971SHSHSA GCO929971SHSHSA GCO929971SHSHSA <br /> Analy. Method: ISHS ISHS ISHS <br /> Prep Method: HS HS HS <br /> Analyst. T Tran T Tran T Tran <br /> MS/MSD #- 9709CO903 9709C0903 9709CO903 <br /> Sample Conc, N D N D N D <br /> Prepared Date: 9/29/97 9/29/97 9/29/97 <br /> Analyzed Date: 9/29/97 9/29/97 9/29/97 <br /> Instrument I D #. GCv1 GCv1 GCv1 <br /> Conc Spiked: 8 0 mg/Kg 6 0 mg/Kg 8 0 mg/Kg <br /> Result. 10 11 11 <br /> MS % Recovery: 125 138 138 <br /> Dup. Result. 11 11 11 <br /> MSD % Recov : 138 138 138 <br /> _ <br /> RPD.-9 5 00 00 <br /> RPD Limit: 0-40 0-40 0-40 - T <br /> -- - - -- LCS #: - -BLK092997--- - BLit092997 BLK092997 ------ ---- --- -- --- --- - - - --- --_ <br /> Prepared Date. 9/29/97 9/29/97 9/29/97 <br /> Analyzed Date: 9/29/97 9/29/97 9/29/97 <br /> Instrument I.D.#: GCv1 GCv1 GCv1 <br /> Conc. Spiked, 8 0 mg/Kg 8 0 mg/Kg 8 0 mg/Kg <br /> LCS Result: 86 8 5 81 <br /> LCS °jam Recov- 4 1n8 106 101 _ <br /> 50-150 50-150 50-150 - - - <br /> LCS 70-130 70-130 70-130 <br /> - Control Limits <br /> -- Please Note -The LCS is a control sample of known,interferent free matnx that is analyzed using the same reage <br /> SEQUOI LYTICAL preparation,and analytical methods employed for the samples The matrix spike is an aliquot of sam <br /> fortified with known quantities of specific compounds and subjected to the entire analytical procedure <br /> the recovery of analytes from the matrix spike does not fall within specified control limits due to matrix <br /> interieient.e,the L4A recovery rs to be used to vairdate the batik <br /> re( xw MS-Matrix Spike, MSD=MS Duplicate, RPD=Relative%Difference <br /> X/MPr� anager 9709C09 EEE c2> <br />