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COLUMBIA ANALYTICAL SERVICES,INC. <br /> QA/QC Report <br /> Client: Equiva Services Service Request: S9901977 <br /> Project: SAP:121258/lncident:88870583 Date Collected: 6/29/99 <br /> Sample Matrix: Soil Date Received: 6/30/99 <br /> Date Extracted: 6/30/99 <br /> Date Analyzed: 7/5/99 <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> TPH as Gasoline <br /> Sample Name: SP-9A Units: mg/Kg(ppm) <br /> Lab Code: 59901977-0017MS, S9901977-0017DMS Basis: Wet <br /> Test Notes: <br /> Percent Recovery <br /> CAS Relative <br /> Prep Analysis Spike Level Sample Spike Result Acceptance Percent Result <br /> Analyte Method Method MRL MS DMS Result MS DMS MS DMS Limits Difference Notes <br /> TPH as Gasoline EPA 5030 CA/LUFT 1 10 10 ND 12 10 120 100 67-121 18 <br /> L4 <br /> Approved By: Date: f <br /> DMS/020597p <br /> pl- 11 <br />