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i <br /> r <br /> SEQUOIA ANALYTICAL <br /> 680 Chesapeake Drive • Redwood Cfty,CA 94063 <br /> (415)364-9600 • FAX(415)364.9233 <br /> aterw M ro ect 367 evron, ockton <br /> 1710 Main Street <br /> Esaalon,CA 95320 <br /> Attention Tina LePage ocsarnpieGroup 1083516-3518 Reported•Jul a, 1991 <br /> I <br /> QUALITY CONTROL DATA REPORT <br /> ANAL E <br /> DEesei <br /> Method EPA8015 <br /> Analyst FL Lee <br /> Reporting Units. no <br /> Date Analyzed ,kin 27, 1fts1 <br /> QC Sample# DaLX of6a1 <br /> Sample Conc.: N D <br /> Spike Cone. <br /> Added, 900 <br /> Cone.Matrix <br /> Spike 710 <br /> Matrix Spike <br /> %Recovery* 79 <br /> w <br /> Cone Matrix <br /> Spike Dup- 790 <br /> �. Matrix Spike <br /> Duplicate <br /> %Recovery: 88 <br /> Relative <br /> s °r6 <br /> Difference, i 1 <br /> t� <br /> t <br /> SEQUOIA ANALYTICAL ranc of V S Cons of rample x 100 <br /> Spike Conc Added <br /> tee faelahvw%DlNarence Conc of M S Conc of M S o x 100 <br /> q1e t W Sc { nc.of M S +Conc of M D 2 Manager 10Mi6WAT t4> <br /> f� <br />