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<br />001377 <br /> <br />GLOOSARY OF WATER MANAGEMENT TERMS <br /> <br />OPl'IMUM DEVELOFMENT--The optimum developnent Of an area or a resource <br />is that canbination of scope and type of developnent which, when <br />measured by econanic, SOcial, and other factors yields the most <br />acceptable results. <br /> <br />OROORAPHIC PRl!X:IPlTATION--Precipitation which results from the Ufting <br />of moist air over a topographic 1>a.rrier such as a mountain range. <br />It may occur sane distance upwind and a short distance downwind as <br />well on the barrier feature. <br /> <br />OOTDOOR RECREATIGW--Recreation in which the daninant environmental <br />attraction is the out of doors. <br /> <br />OVERDRAFT--The amount of water by which the net pumping draft exceeds <br />the perennial yield for a ground "'Water 1>a.sin. <br /> <br />OXYGEN DEMAND--See BIOCHEMICAL OXYGEN DEMAND. <br /> <br />1-0 <br /> <br />