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<br />Arkansas Basin Water Supply <br />and Needs Report <br />IJ IIII <br /> <br />4.2.2 Conditional Water Rights.......................................................................................... 4-4 <br />4.2.3 Changes of Water Rights......................................................................................... 4-4 <br /> <br /> <br /> <br />4.2.4 Leases of Water....................................................................................................... 4-5 <br /> <br /> <br />4.2.5 Augmentation Plans................................................................................................. 4-5 <br /> <br /> <br />4.2.6 I nstream Flows......................................................................................................... 4-6 <br /> <br /> <br />4.2.7 New Appropriations.................................................................................................. 4-7 <br /> <br /> <br />4.2.8 Groundwater Rights.......... .... ............ .... ......... .... ............ .... ............ .... ........ ..... .........4-7 <br /> <br /> <br /> <br />4.2.9 Reuse....................................................................................................................... 4-8 <br /> <br /> <br />4.2.10 Conservation Activities............................................................................................. 4-8 <br />4.3 Interstate Compacts, Equitable Apportionment Decrees, and Memoranda of <br /> <br /> <br /> <br />U nd erstand i ng . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-9 <br /> <br /> <br />4.3.1 Arkansas River Compact of 1948............................................................................. 4-9 <br /> <br />Section 5 Consumptive Water Supply Needs in the Arkansas Basin <br /> <br />5.1 Overview of Projection Methods ............................................................................................... 5-1 <br />5.1.1 Method for Estimating Municipal and Industrial Use ................................................ 5-2 <br />5.1.1.1 Overview of Method for Estimating M&I Use.......................................... 5-2 <br />5.1.1.2 Population Projections............................................................................ 5-3 <br />5.1.1.3 Estimates of Per Capita M&I Water Use................................................. 5-4 <br />5.1.1.4 Self-Supplied Industrial Use ...................................................................5-5 <br />5.1.1.5 Effect of Level 1 Conservation................................................................ 5-5 <br />5.1.1.6 Estimate of M&I CU Rates...................................................................... 5-6 <br />5.1.1.7 Arkansas Basin Existing Agricultural Demands Method .........................5-6 <br />5.1.1.8 Arkansas Basin Future Agricultural Demands Method ...........................5-6 <br />5.2 Estimated 2000 and Projected 2030 M&I and SSI Use............................................................. 5-9 <br />5.3 Projected 2030 Agricultural Demand ...................................................................................... 5-11 <br /> <br />Section 6 Non-Consumptive Water Supply Needs in the Arkansas Basin <br /> <br />6.1 Concepts for Environmental Flow Management .......................................................................6-1 <br />6.2 Recreational and Environmental I nformation ............................................................................ 6-2 <br />6.2.1 Flow Considerations................................................................................................. 6-2 <br />6.2 .2 Water Based Recreation .......................................................................................... 6-3 <br /> <br />Section 7 Availability of Existing Water Supplies in the Arkansas Basin <br /> <br />7.1 Methods and Tools Employed to Evaluate Surface Water Supply Availability................................ <br />7.2 Overview of Groundwater Su ppl ies and A vailabil ity ........................................................................ <br />7.2.1 Definition of Groundwater Resources............................................................................. <br />7.2.2 Denver Basin Bed rock Aq u ifers ..................................................................................... <br />7.2.3 Designated Groundwater Basins.................................................................................... <br />7.1.3.1 Designated Basins Other Than the High Plains ........................................... <br />7.3 Available Surface Water and Alluvial Groundwater Supply............................................................. <br /> <br /> <br /> <br />7.3.1 Surface Water Supplies ................................................................................................ <br /> <br /> <br />7.3.2 Alluvial Aquifer ................................................................................................ <br /> <br />CDIVI <br /> <br />ii <br /> <br />S:\1177\BASIN REPORTS\ARKANSAS\TOC_ARKANSAS.DOC <br />