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COLUMBIA ANALYTICAL SERVICES. INC. <br /> Analytical Report <br /> Client: EMCON Associates <br /> Protect: EMCON Protect No. OG71-038.01 bete Received' SJ93- 3 SJ93-03 <br /> Service Request No.: 68 <br /> ARCO Facility No 2168 Sample Matrix: Water <br /> Inorganic Parameters' <br /> mg/L (ppm) <br /> Sample Name MW-2 (53) Method Blank <br /> Date Sampled 03/10/93 <br /> AnaMe Method MRL <br /> Total Oil and Grease SM 5520B 5 ND ND <br /> Hydrocarbons, Gravimetric SM 5520F 5 ND ND <br /> i <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 Sohd Waste, (SW-846, 3rd Edition) and Methods for Chemical <br /> Analysis of Water and Waste (EPA-600/4-79-020, Revised March 1983) <br /> Approved by Date: / r � l �� <br /> 2 <br />