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CDS Dial-Ile-ter Distance from Water Surface Sediment <br /> Model to Top of Sediment Pile Storage Capacity <br /> ft rri ft rn yd3 <br /> CDS2015-4 4 1.2 3.0 0.9 0.5 0.4 <br /> CDS2020 5 1.5 3.5 1.1 1.3 1.0 <br /> CDS3020 6 1.8 4.0 1.2 2.1 1.6 <br /> CDS3035 6 1.8 5.0 1.5 2.1 1.6 <br /> CDS4040 8 2.4 <br /> 5-7 1.7 5,6 4.3 <br /> Table 1:CDS Maintenance Indicators and Sediment Storage Capacities <br /> Note:To avoid underestimating the volume of sediment in the chamber, carefully lower th e <br /> measuring device to the top of the sediment pile. Finer silty particles at the pile <br /> he top of the pil <br /> may be more difficult to feel with a measuring stick.These finer particles typically offer less <br /> resistance to the end of the rod than larger particles toward the bottom of the pile. <br /> 6 <br /> 6 <br />