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` SEQUOIA ANALYTICAL <br /> 880 C>esapegZi Drive • Redwood City,CA 54063 <br /> (416)364-9600 • FAX(416)364-5233 <br /> x Waterwork Ciers Project ID: W0601.1 E,City o1 Sto=on,WPRR <br /> 1710 Main Street Method: EPA 8270 as Sample Dates <br /> E:calon,CA 55320 Anetyst(s): E Manuel Extracted* Mar 19. 1592 <br /> Attentiort: BE Channall OC Sample I: CSLK031992 Anatyzad: Mar 23, 1982 <br /> Reported: Mar 26, 1992 <br /> QUALITY CONTROL DATA REPORT <br /> Matrix Cone. Matrix SpOw <br /> Conc. Spike Matrix Duplicate Relative <br /> Sample Spike Cone. Matrix % Spike % % <br /> Anatyte Cone. Added Spike Recovery Duplicate Recovery Ditl•mnxsr <br /> Phenol N.D. 100 71 71 71 71 0.0 <br /> 2-CNorophenol N.D. 100 87 87 95 95 8.8 <br /> 1,4-0ichloro- N.D. 50 30 60 32 64 6„5 <br /> benzene <br /> N-Nitroso-Di-N- N.D. SO 42 84 46 52 5,1 <br /> propytamine <br /> 1,2,4-Trichloro- N.D. 50 36 72 37 74 27 <br /> benzene <br /> 4-Chloro- N.D. 100 82 82 85 85 3.6 <br /> 3-Methylphenol <br /> Acenaphthene N.D. 50 38 76 39 78 2.6 <br /> 4-Nttrophenol N.D. 100 51 51 54 54 5.7 <br /> 2,4-0inkro- N.D. 50 35 70 38 76 82 <br /> toluene <br /> Pentachioro- N.D. 100 67 67 70 70 4.4 <br /> phenol <br /> Pyrene N.D. 50 50 100 51 102 2.0 <br /> SEQUOIA ANALYTICAL % Conc.of M.S.-Conc.of sampft =100 <br /> Soka Conc.Addax <br /> F&WOm%OWerence: Cont.of M.S.-Cono of M.S.D. a 100 <br /> • (Cone.of M.S + Caft.of M.S D.) 2 <br /> foject Manager 203 *&WAT s 17 s <br />