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POWDERHORN COAL COMPANY <br />TABLE 2.05. <br />SEDIMENT POND SPILLWAY DESIGN <br />Pond Number Design Flow (cfs) Primary Spillway Emergency Spillway <br /> <br />1 16.50 Pumped 30" Culvert <br />2 7.35 Pumped 30" Culvert <br />4 10.7 6" PVC 36" Culvert <br />5 15.8 6" PVC 36" Culvert <br />6 33.5 6" PVC 36" Culvert <br />7 4.22 Pumped 18" Culvert <br />8 56.8 Pumped 3 ea. 35"x24" <br /> Arch Pipes <br />9 18.6 6" CMP 1/2 30" Culvert <br />10 44.8 6" PVC Concrete Flume <br /> 3' wide x 1' 3" deep <br />11 50.9 6" C14P 3 ea. 35"x24" <br /> Arch Pipes <br />- 174 - <br />(Revised 5-4-92) <br />