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N <br /> COLUMBIA ANALYTICAL SERVICES, INC Ai' <br /> Analytical Report <br /> Client EMCON Associates Date Received 03/12/93 <br /> Project- EMCON Project No OG71-038 01 Service Request No SJ93-0368 <br /> ARCO Facility No 2168 Sample Matrix Water <br /> i <br /> Inorganic Parameters' <br /> mg/L [ppm} <br /> I <br /> Sample Name MW-2 (53) Method Blank <br /> Date Sampled 03110193 <br /> Analyte Method MRL <br /> Total Oil and Grease SM 55208 5 ND ND <br /> Hydrocarbons, Gravimetric SM 5520F 5 ND ND <br /> MRL Method Reporting Limit <br /> ND None Detected at or above the method reporting limit <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, 3'd Edition) and Methods for Chemical <br /> Analysis of Water and Waste (EPA-60014-79-020, Revised March 1983) <br /> f <br /> Approved by Date <br /> 2 <br />