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SEQUOIA ANALYTICAL <br /> 819 Striker Avenue, Suite 8 • Sacramento, CA 95834 <br /> Iwo (916) 921-9600 * FAX (916) 921-0100 <br /> ert r. ArM 21 Gi-a3-2, Stec on <br /> 3164 Gold Camp Dr. Suite 200 Mattix: Son <br /> t Rancho Cordova, CA 95670 <br /> ;Attentkxt• David Stavarea< DC }Sample Group 310-0219 Reported Oct 14, 1993 <br /> xN <br /> r}J�++fir%�, ` J�vW w+�iri+r]vv}]O iAW 'S]65WCYfYF'V �:iw� %b.,µv.<w.v rrS <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Hyl <br /> Benzene Toluene benzene X enes Lead <br /> Method: EPA 8020 EPA 8020 EPA 8020 EPA 8020 EPA 6010 <br /> Analyst: C Chapman C Chapman C Chapman C Chapman S Foster <br /> Concentration <br /> Spiked: 0 20 mg/kg 0 20 mg/kg 0 20 mg/kg 0 60 mg/kg 5 0 mg/L <br /> LCS Batch#: LCS101293 LCS101293 LCS101293 LCS101293 M1001938 <br /> Date Prepared: 10/12/93 10/12/93 10/12/93 10/12/93 10/1/93 <br /> Date Analyzed: 10/12/93 10/12/93 10/12/93 10/12/93 10/14/93 <br /> lnstrum r t I.D.#, HP-1 HP-1 HP-1 HP-1 PE-40 <br /> LCS % <br /> Recovery: 105 95 105 102 102 <br /> Control Limits: 80-120 80-120 80.120 80.120 90-110 <br /> ..�,y<6o�b°<ut���o-r,..v„1��aacx:,aua,ti��',•`.;.«wt,;,.is a+:w..,',.wri.�.��.;w wi:xn'cc :ci aas,c'�`.�`'ts:o->w�. � � �}y'„{c„s,'r"y yt :`or.°�$,"''�,�''i p �sdr{��g�u;�i v � �" <br /> MS/MSD <br /> Batch#' 3100296 3100296 3100296 3100296 3100219 <br /> Date Prepared: 10/12/93 10/12/93 10/12/93 10/12/93 10/14/93 <br /> Date Analyzed: 10/12/93 10/12/93 10/12/93 10/12/93 10/14/93 <br /> Instrument I.D.#: HPA HP-1 HP-1 HP-1 PE40 <br /> Matrix Spike <br /> %Recovery: 105 90 100 97 92 <br /> Matrix Spike <br /> Duplicate% <br /> Recovery: 110 95 105 103 92 <br /> Relative% <br /> Difference: 46 54 49 so 00 <br /> Please!Hots <br /> The LCS Is a control sample of known,interferent fres matrix that Is analyzed using the same rsagerlts, <br /> SEQUOIA ANALYTICAL preparation and analyt,cal methods employed for the samples. The LCS%recovery data is used for <br /> LI< validation of sample bath results Due to matrix effects,the OC limits for MS/MSD's aro advisory only <br /> �� and are not used to acce or re eet hatch results <br /> E.-1fld$C. er'l <br /> Project Manager <br /> 3100219 RES <4> <br />