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Control Practice Factor (CP) <br /> The control practice factor (CP) was estimated to be 1.00 for fresh <br /> cultivated land with no conservation treatment for a conservative <br /> approach (Barfield et al . , 1981) . <br /> Storage Capacity <br /> The storage capacity of Sediment Pond 002 was also analyzed using the <br /> SEDIMOT II computer program. Table 6 is a summary of the designed <br /> storage capacity (see Exhibit 13-13 for pond geometry) . <br /> TABLE 6 <br /> Design Storage Capacity Summary <br /> Sediment Pond 002 <br /> Stage Capacity <br /> Elevation (Feet) (Ac-ft) Description <br /> 5696.0 0.0 0.00 Bottom of Pond <br /> 5697.0 1.0 0.068 Elevation of Principal <br /> Spillway and 100% <br /> Sediment Storage <br /> 5699.44 3.44 0.315 10-year, 24-hour Peak <br /> Stage <br /> 5700.03 4.03 0.390 25-year, 24-hour Peak <br /> Stage <br /> 5700.10 4.10 0.46 Elevation of Emergency <br /> Spillway <br /> 5701.09 5.09 0.55 100-year, 24-hour Peak <br /> Stage <br /> 5702.0 6.0 0.71 Top of Embankment <br /> Peabody does not anticipate any pit pumpage or other inflow to the pond <br /> at this time. <br /> SPILLWAY <br /> Sediment Pond 002 provides for a combination of principal-emergency <br /> spillway to safely discharge the runoff from a 25-year, 24-hour storm. <br /> 9 <br />