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<br />. <br /> <br />. <br /> <br />Appendix A <br /> <br />DEFINITION OF TERMS <br /> <br />Analytical Area -- An Analytical area is a unit of geography which approxi- <br />mates either a Problem Area or a Level B study area for analytical purposes <br />as supplies are being estimated, requirements are being projected and effects <br />information is being developed. Economic information is normally available on <br />boundaries coinciding with groups of counties. <br /> <br />Water supply data is normally on a hydrologic basin/subbasin basis. <br /> <br />Environmental data may be on some other basis. Therefore the boundaries of <br />the analytical areas change depending upon the type of information being <br />developed. <br /> <br />Central Case -- This is defined to be the National level trend growth path <br />as reflected in the OBERS Series "E" Report (published in September 1974), <br />and which is based on the assumptions of projected levels of population, <br />economic activity, water supply and water and related land requirements as <br />set forth in the Plan of Study (August 1974). <br /> <br />Functional Use -- These are the cate90ries of water and related land uses <br />including preservation uses, which along with Problem Issues, will be used <br />to characterize problems. They are identified in Figure 3. <br /> <br />Level B Study Area -- A Level 8 Study Area is a unit of geography in which <br />a Level 8 planning study is being proposed for study. Geographically it is <br />comprised of one or more Problem Areas plus any intervening geography <br />between Problem Areas if the Problem Areas are not contiguous. <br /> <br />Long Term -- Long Term relates to the identification of severe water and <br />water-related problems which are expected to occur and require resolution between <br />1985 and 2000. <br /> <br />Modified Central Case -- This is defined to be the National level growth <br />path defined by the NPA Committee to represent the most probable course of <br />the Nation's future between 1975 and 2000. The scenario will be defined <br />after the results of the Nationwide Analysis has been analyzed, (May-June <br />1975) and will be a combination of future conditions drawn from the Central <br />Case and variations among the levels of selected functional uses. <br /> <br />Near Future -- The Near Future relates to the identification of severe water <br />and water-related problems which exist or are expected to become severe and <br />require resolution prior to 1985. <br /> <br />Problem -- A problem is defined as an anticipated failure to meet uses of <br />water or related land resources for a single or a group of functional uses within <br />a given geographical area -- a problem area. A problem is characterized by <br />the intesection of a problem issue (e.g. water supply) and a functional use <br />(e.g. crops). <br /> <br />l?A~ <br /> <br />-38- <br />