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SEQUOIA ANALYTICAL <br /> sa <br /> i 680 Chepeake Drive • Redwood CttY,CA <br /> (415)364-9600 • FAX(415)364.9233 <br /> 1 Ctlant Proyect 10:W060 <br /> 1.tE,CkY of Stockton.WPRR <br /> Waterwork : Mar 26, 1997 <br /> 1710 Main SMW R <br /> Escalon,CA963 <br /> SOC Swnple Gr "58 <br /> Attention: Ella Cn <br /> ha <br /> (IUALJTy CONTROL DATA REPORT <br /> Uwd <br /> ANALYTE Cadmium Chromium cow <br /> seem <br /> Barium <br /> A 2=7 EPA 200.7 EPA 2322PA 260.7 EPA 260.7 EP S Ci+in <br /> Method: EPA 200.7 EPA=7 C made~ C.MedeNew C.Mede/eaaw �Madess"t eq� <br /> C Medef"W C wd.++e nv/L nv/� R+0/L t962 Mar 20, 1992 <br /> R+9/� , Mar 20, 1902 Mar 20. <br /> Reporting units �� Mar 2D, 7962 Mar 20. ,992 Mar �• 992 2�� 2USVW 2a3.70s3 <br /> Date Amtyzed: Mar 19� 2=-30W 2a-3= <br /> _ OC Sample#: 20-30D <br /> 0.61 N.D. <br /> N.D. 0.040 N.D. 0.044 0.0056 <br /> Sample Conc-: <br /> Spike Conc. 1.0 1.0 1.0 <br /> 1.0 1.0 0.10 <br /> Added: 1.0 <br /> 1.0 1.0 0.10 <br /> Conc.Matrix 0.99 1.0 1.0 <br /> Spike: 1.6 <br /> Matrix Spike 99 99 100 <br /> 96 100 96 94 <br /> %Recovery: <br /> Conc.Matrix 1.6 0.97 1.0 1.0 <br /> 1.0 1.0 0.10 <br /> Spike Dup.: <br /> Matrix Spike 100 96 94 <br /> Duplicate 99 97 700 96 <br /> %Recovery: <br /> Relative 2.0 0.0 0.0 <br /> 0.0 0.0 0.0 <br /> %Difference: 0.0 <br /> Conc.of M.Stw <br /> Conc.of S+moN :100 <br /> SEQUOIA ANALYTICAL <br /> 9t iieoowy. Sp,ke AaoaaCone.of M.S .d M.SO. :100 <br /> wui�.s Oin«.nor Ico�+e•a M.S. • nc. 'M.S.O.) 2 wA1 <13> <br /> Oct ManaOer <br />