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COLUMBIA ANALYTICAL SERVICES,INC. <br /> se• <br /> QA/QC Report <br /> rClient- EMCON Associates Sernce Request K950968S <br /> Project Arco 760/Lodi/#1775-212 01 Date Collected. 2/13/95 <br /> Sample Matrix Water Date Received: 2/17/95 <br /> Date Extracted- 2/21/95 <br /> Date Analyzed. 2/23/95 <br /> Surrogate Recovery Summary <br /> Total Petroleum Hydrocarbons as Diesel <br /> California DHS Luft Method <br /> Percent Recovery <br /> Sample Name Lab Code o-Terphenyl <br /> MW-1 K950968-001 75 <br /> MA-2 K950968-002 68 <br /> MNti-1 K950968-003 69 <br /> MSN-I K950968-001D 69 <br /> MW-3 K950968-003 MS 70 <br /> Laboratory Control Sample K950221-WL 73 <br /> Method Blank K950221-WB 78 <br /> CAS Acceptance Limits 46-120 <br /> Approved By Date v Z$ <br /> SLRI 594 <br /> 09t$SPHC SS1 TPHw R 7124/95 par No <br />