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COLUMBIA ANALYTICAL SERVICES, INC wa <br /> QA/QC Report ,- <br /> Client: EMCON Associates Date Received 11/01193 <br /> Project* EMCON Project No OG71-038 01 Service Request No. SJ93-1339 <br /> ARCO Facility No 2168 Sample Matrix Water <br /> Surrogate Recovery Summary <br /> Halogenated Volatile Organic Compounds <br /> EPA Methods 5030/601 <br /> Sam le Name Date Analyzed Percent Recovery <br /> 4-Bromofluorobenzene <br /> MW-1 (54) 11/03/93 115 <br /> MW-2 (53) 11/03/93 95 <br /> MW-3 (54) 11/03/93 113 <br /> MW-4 (59) 11/03/93 122 <br /> MW-5 (55) 11/03193 99 <br /> MW-6 (47) 11/03/93 116 <br /> MW-7 (48) 11/03/93 97 <br /> MW-3 (54) MS 11/03/93 113 <br /> MW-3 (54) DMS 11/03/93 121 <br /> Method Blank 11/03193 1 10 <br /> CAS Acceptance Criteria 70-130 <br /> Approved by L�t�„K � _,. Y�_.== Date <br /> �O')� Rinn..•nn� A+ enn. f.... L..n r..lc,,.,, .. r1c,11J <br />