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<br />001376 <br /> <br />GLOSSARY OF WATER MANAGEMENT TERMS <br /> <br />NATURAL FLW--The rate of water movement, with its contained sediments, <br />which actually flows past a specified point on a naturaJ. stream <br />fran a drainage area for which there have been no effects caused <br />by stream diversion, storage, import, export, return flow, or change <br />in consumptive use caused by man-controlled modifications to land <br />use. Natural flow rarely occurs in a developed country. <br /> <br />NATURAL RUNOFF--Runoff resulting from natural flow. See NATURAL FLGl. <br /> <br />NAVIGABLE WATER--Those ,-raters that are, in fact, navigable by watercraft, <br />either light or deep draft, or which fall within the regulatory <br />jurisdiction of the A~ Corps of Engineers. <br /> <br />NEGATIVE BENEFITS--Conditions, brought about by a program or the <br />construction or operation of a project, for which corrections require <br />the expenditure of cost or effort which would not have been required <br />had the project not been constructed. Frequently called detriments. <br /> <br />NET RESERVOIR EVAPORATION--The excess or deficiency of evaporation <br />fran the surface of the reservoir related to the precipitation <br />falling on the same surface. <br /> <br />NET WATER REQUIREMENTS--Applied water less the amount of water that <br />can be reused within the area. <br /> <br />NClNFmM YIIIlLP-- A yield which is directly subject to the quantity of <br />water available in a given year. This is usually expressed as <br />average annual yield because it is, quite variable. <br /> <br />N<ImECURRINQ FLOOD DAMAGlllS-- Those items of previous loss which, <br />although once experienced, are not likely to recur for various <br />reasons, such as destruction and nonreplacement of the facility <br />involved, or replacement in such a manner as to avoid or minimize <br />further damage. <br /> <br />NClmSIMBtJRSAJ3LE COSTS-- Costs for which the financing agency does <br />not seek repayment through project revenues. <br /> <br />NORMAL--A central value (such as arithmetic average or median) of annual <br />quanti ties for a 30-year period ending with an even 10-year, thus <br />1921-50; 1931-60, and so forth. <br /> <br />NORMALIZED CURRENT PRICES--Observed prices for the last year of record <br />derived fran canputations or graphic readings of mathematically <br />fitted (nonlinear) long-tenn trend lines. <br /> <br />. <br /> <br />I-N <br /> <br />