Laserfiche WebLink
i •1 iii <br /> COLUMBIA ANALYTICAL SERVICES, INC. <br /> QA/QC Report <br /> Client: EMCON Associates Date Received: 12/08/92 <br /> Project: EMCON Project No. OG71-033.01 Service Request No.: 5.192-1544 <br /> ARCO Facility No. 548 Sample Matrix: Water <br /> Surrogate Recovery Summary <br /> STEX and TPH as Gasoline <br /> EPA Methods 5030/8020/California DHS LUFT Method <br /> S <br /> Sample Name Date Analyzed Percent Recovery <br /> a,a,a-Trifluorotoluene <br /> MW-1 (56) 12/11/92 127. <br /> MW-2 161 M 12/09/92 1 1 1. <br /> MW-3 (62) 12/11/92 112. <br /> . MW-4 (631 12/09/92 110. <br />* MS 12/09/92 130. <br /> DMS 12/09/92 126. <br /> Method Blank 12/09/92 116 <br /> Method Blank 12/11/92 113. <br /> CAS Acceptance Criteria 70-130 <br /> TPH Total Petroleum Hydrocarbons <br /> r� <br /> r Approved by: Date: <br />