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SEQUOIA ANALYTICAL <br /> 1900 Bates Avenue a Sulto LAA o Concord, California 94520 <br /> (415)686-3600 8 FAX(415)686-9689 <br /> Delta Ertvironmentei Consultants Olen Project ID: #40-88-147/Lower Sacto.Rd. <br /> 3330 Data Drive <br /> r, 70 <br /> Pitentlan: Jim Brownell (}C&am ©Groin: R0 ed:Crt 99, 1990 <br /> 0 ovA. 9513 .. .. .. <br /> GUAUTY CONTROL DATA REPORT <br /> _ AN��LYi E � <br /> Beauena Toluene nanzem Xylenes <br /> i Method: EPA8om/s= E A8015/eM EPA8015/t=EPA80151=0 <br /> Analyst: E Hamlltan E Hamlfton fc.Hamtfton E Hambro <br /> Reporting Unfts: <br /> I� � �/L A11� uali i'Olf- <br /> Date Analyzed: co-,t t8, 1990 Oct 16. 1990 Oct te, I= Oct IF, low <br /> CSC Sample : oto4wai 010-0331 010-Mi 010.0381 <br /> 1 Sample Calla.: N.D. N.D. N.D. N.D. <br /> Spike Cone. <br /> 12� Added: Ln 20 20 60 <br /> s� <br /> ► Cane.Matrix i <br /> $pike: 17 17 16 50 <br /> Matrix Spike i <br /> %Recovery: Fi5 85 80 t33 <br /> r1 Cone.Matrix <br /> :m Spike Dup.: 16 16 16 49 <br /> E- ) <br /> �R MahizSpik® . <br /> Duplicate <br /> I,, :%Revery: 80. 8o 80. 62 <br /> i Rotative <br /> ' %Difference: ` 6.1 6.1 0 2.0 <br /> bra - - -------- ------ ----- ------- ------ <br /> `'* DU®!A ANALYTICAL %Flow rr. Iona of M.S. Cann.of Sample x 100 — — <br /> 4 ti <br /> F i �;n $pll{e R AddaQ . <br /> Relative%Differonce: Conn.a M.S.-Cone.of M.S.D. x too <br /> Belinda C.VoW.` (Conn.m M.S.+Com of M.S.D. 2 -- <br /> I Laboratory DirectoP;, 1003T6.bLF <2a <br />