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Socio-Economic Characteristics and Primary Land Use Socio-economic information, including population, employment, per capita' income and electric energy production, are presented for each of the region's 11 ASA's, the state portions of each ASA, and as a region summary for the years 1975, 1985 and 2000. Primary land use information for the SRF is broken down into four major categories--agricultural, mining, urban and transportation and other land. That information, as well as total land area and total water surface area, are displayed for the region, each ASA and state portion for 1975, 1985 and 2000. Water Use and Requirements This section of the SRF shows estimated 1975 water use and projected water requirements for the years 1985 and 2000. Information is classified in the following seven major functional categories: * Municipal and Industrial (Central Systems) * Rural Domestic * Manufacturing (Self Supp1 ied) * Mining * Irrigation * Livestock * Steam Electric Withdrawals and consumptive use are separately tabulated for the regi on, the 11 ASA I S and state porti ons of ASA' s. Instream Flow Needs This section consists of two main parts. The first part addresses instream functional uses, including the concept of beneficial use and problems associated with the concept. Two functional uses, hydroelectric power and navigation, are discussed in this part. The discussion on hydroelectric power presents a tabulation of the basin's existing hydroelectric capacity and the future role of hydroelectric power. The dIscussion of navigation contains estimates of seasonal navigation water requirements, commerce asso- ciated with the waterway and the future of navIgation on the Missouri River. The final part of the instream flow needs section is a general discus- ' sion of institutional requirements in the Missouri Basin. The six interstate compacts, two Supreme Court Decrees and one international treaty governing the waters of the basin are described. This part also summarizes the basin's existing and projected water imports and exports. Water Supplies/Depletions Summary This section contains tabulations by ASA of present modified flows, imports, exports, depletions (upstream, intra-ASA consumption, and evaporation). natural modified flows and future modified flows. Also estimated are ground ' water factors to account for effects on streamf10ws. All figures are rePorted in thousand acre-feet (1,000 AF) per year and million gallons per day (MGD). II-2 I I I I I I I I I I I I I I I I, , I I I