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COLUMBIA ANALYTICAL SERVICES,INC <br /> QA/QC Report <br /> client, Applied Earth Sciences, Incorporated Service Request: X0400795 <br /> Protect- Canteen Corp/AGE-NC-99-0612 Date Extracted: 08/25/2004 <br /> dimpleMatrix Water Date Analyzed: 08/25/2004 <br /> Lab Control Spike/Duplicate Lab Control Spike Summary <br /> TPH.as Gasoline (GRO) <br /> Extraction Method EPA 5030B Units: ug/L <br /> Analysis Method 8015 GRO Basis: NA <br /> Level. Low <br /> Extraction Lot: XWG0400905 <br /> Lab Control Sample Duplicate Lab Control Sample <br /> XWG0400905-3 XWG0400905-4 <br /> Lab Control Spike Duplicate Lab Control Spike %Rec RPD <br /> Analyte Name Result Expected °/aRec Result Expected %Rec Limas RPD Limit <br /> C6-CIO GRO 1000 1000 100 1030 1000 103 70-130 3 30 <br /> lie <br /> L ' <br /> flagged with an asterisk(')indicate values outside control criteria. <br /> t recovenes and relative portent differences(RPD)are detemuned by the softwam using values m the calculation wbich have not becn rounded. <br /> Printed 08/27/2004 09 59 09 Form X-Organic Page 1 of 1 <br /> �.1STE.ALTMCRYSTAL Ry rFmm3DLC rpt SuperSet Reference RR4894 <br />