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~•-es for Small Areas in SZsface Coal Mining. Fort Collings, <br />Colorado. <br />Soil Conservation Service, U. S. Departrnent of Ac~iculture. 1982. Ponds - <br />Planning, Design, Construction. Washington, D. C. <br />Warner, R.C., Wilson, B.N., Barfield, B.J., Logsdon, D.S., arri Nebgen, <br />P.J. 1983. A Hydrology and Sediaientology Watershed Model. Part II: <br />User's Manual. University of Kentucky, IexiixJton, Kentucky. <br />.. <br />7-6f-20 Revised 08/24/92 <br /> <br />