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<br />Dolores/San Juan/San Miguel Basin Water Supply <br />and Needs Report <br /> <br />Section 7 Availability of Existing Water Supplies in the <br /> <br />Dolores/San Juan/San Miguel Basin <br /> <br />7.1 Methods and Tools Employed to Evaluate Surface Water Supply Availability.......................... 7-1 <br />7.2 Overview of Groundwater Supplies and Availability.................................................................. 7-1 <br />7.2.1 Definition of Groundwater Resources....................................................................... 7-1 <br />7.3 Available Surface Water and Alluvial Groundwater Supply....................................................... 7-3 <br />7.3.1 Surface Water Supplies .......................................................................................... 7-5 <br /> <br /> <br /> <br />7.3.2 Alluvial Aquifer ..........................................................................................7-6 <br /> <br /> <br />7.4 Availability for Water Supply Development under Interstate Compacts and Decrees .............7-20 <br />7.4.1 Colorado River Compact Analysis and Potential for Development of <br />Additional Supplies ........................................................................................ 7-21 <br /> <br />Section 8 Options for the Dolores/San Juan/San Miguel Basin <br /> <br />8.1 Methods Employed to Assess Water Needs............................................................................. 8-1 <br />8.2 Implications of Uncertainty in Identified Projects/Processes and Existing Supplies .................. 8-2 <br />8.3 Identified Projects and Processes in the Dolores/San Juan/San Miguel Basin .........................8-3 <br />8.3.1 Identified Projects and Processes for M&I, SSI, and Agricultural Users ...................8-6 <br />8.4 Specific Issues in the Dolores/San Juan/San Miguel Basin .................................................... 8-11 <br />8.4.1 Conditional Storage Rights..................................................................................... 8-11 <br />8.4.2 Gap Analysis Issues............................................................................................... 8-12 <br />8.4.3 Supply Availability Issues....................................................................................... 8-12 <br />8.4.4 Summary of Dolores/San Juan/San Miguel Basin Conditional Storage Rights ...... 8-13 <br />8.4.5 Summary of Restricted Reservoirs and Potential Storage Sites ............................8-13 <br />8.5 Environmental and Recreational Options................................................................................ 8-18 <br />8.5.1 Overview of Environmental and Recreational Options............................................ 8-18 <br />8.5.2 Existing Statewide Environmental and Recreational Options .................................8-18 <br />8.5.3 Possible Future Statewide Environmental and Recreational Options ..................... 8-19 <br />8.6 Potential Options for Addressing Remaining Water Needs and Enhancements .....................8-22 <br /> <br />Section 9 Options for Meeting Future Water Needs <br />9.1 Developing Options for F utu re Water Needs............................................................................. 9-1 <br /> <br /> <br /> <br />9 .2 Families of Options.................................................................................................................... 9-1 <br /> <br /> <br />9.2.1 Conservation... ........ .... .... ........ ..... ........ .... .... ........ .... .... ........ .... .... ........ .... .... ........ .....9-2 <br /> <br /> <br />9.2.1.1 Municipal and Industrial Water Conservation.......................................... 9-2 <br />9.2.1.2 Evaluating New Supply from M&I Water Conservation ........................... 9-5 <br />9.2.1.3 Agricultural Conservation (Efficiency Improvements) .............................9-6 <br />9.2.2 Agricultural Transfers................................................................................................ 9-7 <br />9.2.2.1 Permanent Agricultural Transfers ...........................................................9-8 <br />9.2.2.2 Interruptible Agricultural Transfers .......................................................... 9-9 <br />9.2.2.3 Rotating Agricultural Transfers with Storage to Firm Agricultural <br /> <br /> <br /> <br />Demands .......................................................................................... 9-9 <br /> <br /> <br />9.2.2.4 Water Bank ........................................................................................ 9-10 <br /> <br />CDIVI <br /> <br />S:\1177\Basin Reports\DSJSM\TOC_DSJSM.doc <br /> <br />iii <br />