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_ Alpha Analytical, Inc. <br /> 255 Glendale Ave. • Suite 21 • Sparks,Nevada 89431-5778 <br /> (775)355-1044•(775)355-0406 FAX• 1-800-283-1183 <br /> Date: Work Order. <br /> 09-Jun-04 QC Summary Report 04052205 <br /> _ Method Blank Type MBLK Test Code: EPA Method SW8260B <br /> File ID: C:\HPCHEM\MS07\DATA\040526\04052610.D Batch ID: MS07S9997A Analysis Date: 05/26/200412:11 <br /> Sample ID: MBLK MS07S9997A Units: pg/Kg Run ID:MSD_07_040526A Prep Date: 05/26/2004 <br /> Analyte Result POL SpkVal SpkRefVal %REC Lowi-imit HighUrnit RPDRefVal %RPD(Limit) Oual <br /> Benzene ND 5 <br /> Toluene NO 5 <br /> Ethylbenzene NO 5 <br /> m,p-Xylene ND 5 <br /> o-Xylene ND 5 <br /> Laboratory Control Spike Type LCS Test Code: EPA Method SW8260B <br /> File ID: C:\HPCHEM\MSOTDATA\040526\04052611.D Batch ID: MS07S9997A Analysis Date: 05/26/2004 12:35 <br /> Sample ID: LCS MS07S9997A Units: pg/Kg Run ID:MSD_07_040526A Prep Date: 05/26/2004 <br /> Analyte Result POL SpkVal SpkRefVal %REC LowLimit HighUmit RPDRefVal %RPD(Umit) Oual <br /> Benzene 227 5 200 114 60 142 <br /> Toluene 235 5 200 117 58 143 <br /> Ethylbenzene 231 5 200 116 58 147 <br /> m,p-Xylene 237 5 200 118 57 147 <br /> o-Xylene 235 5 200 118 58 149 <br /> '— Sample Matrix Spike Type MS Test Code: EPA Method SW6260B <br /> File ID: C:\HPCHEM\MS07\DATA\040526\04052613.D Batch ID: MS07S9997A Analysis Date: 05/26/200413:21 <br /> Sample ID: 0405220439AMS Units: pg/Kg Run ID: MSD_07_040526A Prep Date: 05/24/2004 <br /> _ Analyte Result POL SpkVal SpkRefVal %REC LowUmit Highl-imit RPDRefVal %RPD(Limit) Dust <br /> Benzene 153 5 200 0 76 31 152 <br /> Toluene 161 5 200 0 81 11 182 <br /> Ethylbenzene 158 5 200 0 79 30 161 <br /> m,p-Xylene 161 5 200 0 at 0 199 <br /> o-Xylene 155 5 200 0 77 0 208 <br /> Sample Matrix Spike Duplicate Type MSD Test Code: EPA Method SW82608 <br /> File ID: C:\HPCHEM\MS07\DATA\040526\04052614.D Batch ID: MS07S9997A Analysis Date: 05/26/200413:43 <br /> Sample ID: 04052204-39AMSD Units: pg/Kg Run ID:MSD_07_040526A Prep Date: 05/24/2004 <br /> Analyte Result POL SpkVal SpkRefVal %REC Lowl-imit HighLimit RPDRefVal %RPD(Umit) Oual <br /> Benzene 198 5 200 0 99 31 152 152.9 25.7(29) <br /> Toluene 212 5 200 0 106 11 182 161.3 27.2(44) <br /> Ethvibenzene 211 5 200 0 106 30 161 157.6 29.1(29) R5 <br /> m,p-Xylene 217 5 200 0 108 0 199 161.3 29.2(30) <br /> o-Xylene 209 5 200 0 105 0 208 154.7 30.0(30) R5 <br /> Comments: <br /> Calculations are based off of raw(non-rounded)data.However,for reporting purposes,all QC data is rounded to three significant figures.Therefore,hand calculated <br /> values may differ slightly. <br /> R5=MS/MSD RPD exceed the laboratory control limit.Recovery met acceptance criteria. <br />