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I• <br />I• <br />• <br />CCV Storm Water Sediment <br />Double Hydrometer Results -Natural Settling <br />Hydromenter Test, Non-dispersed Natural Settling in 1 <br />Imhoff Cone -Time vs. %Suspended <br />25.0 <br />~ 20.0 <br />.~ <br />15.0 <br />c 10.0 <br />a~ <br />L <br />a 5.0 <br />0.0 <br />-- <br />j_ <br />tTopsoil <br />--i-Coarse Subsoil <br />~t Fine Pond Sediment <br />1 10 100 1000 10000 <br />Time (minutes) <br />Hydromenter Test, Non-dispersed Natural Settling <br />in Imhoff Cone -Time vs. Size (mm) <br />1 <br />0.1 <br />,.. <br />E <br />d <br />0.01 <br />0.001 1 <br />1 <br />tTopsoil <br />-~ Coarse Subsoil <br />tFine Pond Sediment <br />10 100 1000 <br />Time (minutes) <br />I V V 1./ V <br />Steffens and Assoc., Inc. <br />4/11 /2008 <br />Figure 5 <br />