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SEQUOIA ANALYTICAL <br /> 680 i rive * Redwood City CA 94063 <br /> (4,5) 364 5600 FAX (415) 364 9233 <br /> p's �' "ir�x"s"sfs' �s.,y <br /> Waterwork Client Project ID #322,J© Terminal,Tracy <br /> 1710 Main Street <br /> Escalon, CA 85320 <br /> Attention Lots Frantz QC Same Grou 0103786-0103789 Reported No,. 9 1990 <br /> QUALITY CONTROL DATA REPORT <br /> ANALYTE Benzene Toluane Ethyl x0anas <br /> Demons <br /> EPA EPA EPA EFA <br /> Method em/8015 SM/8015 so-ap/sots as/eels <br /> Analyst t3 Meyer 0 Mayer Ca-Wysr G 14eyar <br /> Reporting Units no. no 09 no <br /> Date Analyzed K- 5, 1990 Now 5, 1990 Nov S. 1990 fir S. 1890 <br /> QC Sample # 010.4204 010.4204 010.4204 010421}1 <br /> Sample Cone.: 21 50 N D N D <br /> i spike Cone. <br /> Added: 100 iQQ 100 300 <br /> Cone.Matrix <br /> Spike: 90 95 94 2W <br /> Matrix Spike <br /> %Recovery, 69 90 94 97 <br /> Cone Matrix <br /> Spike Dup.: 85 90 68 270 <br /> Matrix Spike <br /> Duplicate <br /> %Recovery: 64 B5 88 91 <br /> Relative <br /> %Difference 57 54 65 60 <br /> SEQU ANALYTICAL %Flewmenr G0fla.of Kt.S -Calc.of Sample __ X100 <br /> Spllss Conc Added <br /> %Diftsrence Conc of KS -Cone,of WS D x 104 <br /> th 1411 Hacki 1001to of M S + C;.of M S D 2 <br /> ro ct Manager 103766 WAT <2> <br />