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SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive - Redwood City, CA 94063 <br /> terwork Client Project ID: 20241-1, Kooyrnan Trucking <br /> .11710 Main Street Method (units): EPA 8270 (jig) Q.C. Sample Dates <br /> .,Escalon, CA 95320 Analyst(s): T. Fowler Extracted: Nov 30, 1989 <br /> Attention: Robert Juncal OC Sample#: 911-2125 Analyzed: Nov 30, 1989 <br /> RePorted: Dec 6, 1989 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Conc. Matrix Spike <br /> Conc. Spike Matrix Duplicate Relative <br /> Sample Spike Conc. Matrix % Spike % % <br /> Analyte Conc. Added Spike Recovery Duplicate Recovery Difference <br /> Phenol N.D. 100 48 43 51 51 17 <br /> 2-Chlorophenol N.D. 100 47 47 45 45 43 <br /> 1,4'OioNoro' N.D. 50 18 38 18 36 5.4 <br /> benzene <br /> NNitruno'Di'N N.D. 50 22 44 24 48 0.7 <br /> propy|annine <br /> 1.2'4-Thoh|oro~ N.D. 50 10 30 18 30 0 <br /> benzene <br /> 4-Chloro- N.D. 100 51 51 54 54 5.7 <br /> 3'Mo1hyiphen(d <br /> Acenaphthene N.D. 50 20 46 25 5U 8.8 <br /> 4'Nitrophonol N.D. 100 01 61 56 56 05 <br /> 2.4'Dinftrn~ N.D. 50 04 00 81 02 9.2 <br /> toluene <br /> Pentaoh|uro' N.D. 100 47 47 43 40 8.8 <br /> phenol <br /> Pyrene ND. 50 31 62 32 04 32 <br />