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COLUMBIA ANALYTICAL SERVICES, INC. <br /> Analytical Report <br /> a Client: EMCON Associates Date Received: 06/09/93 <br /> Project: EMCON Project No. OG71-033.01 Service Request No.: SJ93-0761 <br /> ARCO Facility No. 548 Sample Matrix: Water <br /> i <br /> Inorganic Parameters' <br /> mg1L (ppml <br />• <br /> Sample Name: MW-1 (56) Method Blank <br /> Date Sampled: 06/07/93 <br />• Analyte Method MRL <br /> Total Oil and Grease SM 55208 5 NO ND <br /> Hydrocarbons, Gravimetric SM 5520F 5 NO NO <br />• <br /> SM Standard Methods for the Examination of Water and Wastewater, 17th Ed., 1989 <br /> ' Unless otherwise noted, all analyses were performed within EPA recommended maximum holding times <br /> specified in Test Methods for Evaluating Solid Waste, (SW-846, 3rd Editionl and Methods for Chemical <br /> Analysis of Water and Waste (EPA-60014-79-020, Revised March 1983). <br /> i <br /> Approved by: �� f Date: V� <br />