Wyoming State Water Plan
Wyoming State Water Plan
Wyoming Water Development Office
6920 Yellowtail Rd
Cheyenne, WY 82002
As authorized by the Wyoming Water Development Commission in its contract scope of work, this planning document presents current and proposed future uses of water in Wyoming's Snake/Salt River Basin. Uses to be inventoried include agricultural, municipal, industrial, environmental, and recreation. Both surface and ground water uses, as well as overall water quality are described. Given current uses, the availability of surface and ground water to meet future requirements is estimated. To lay the groundwork for future water development, a review of the current institutional and legal framework facing such projects is presented. Finally, thoughts are given to guide implementation of the water planning process.
The intent of this summary report is to describe the planning study in sufficient detail for the reader to gain a general understanding of the investigations that were performed and the results of those investigations. For detailed information on a specific topic the reader is directed to the technical memorandum prepared for that topic. References used in preparing the technical memoranda are not repeated in this summary report. These references are presented in the individiual technical memoranda.
HTML Chapter III - Figures Included
PDF (699kb) or HTML At present, nearly 26,000 people reside in just over 10,000 households within the Wyoming portions of the Snake and Salt River basins. Roughly 44 percent of the population of the basin lives within the boundaries of the City of Jackson or the Towns of Afton, Alpine and Thayne, the four principal population centers within the basin.
PDF (591kb) or HTML This section discusses the procedures used to create a list of potential future projects that would utilize the water resources in the Snake/Salt River basin. This list represents the needs and desires of those in the basin, and provides a starting point for additional beneficial uses of water in the future.
The memoranda may be viewed in either HTML or PDF. The PDF version requires Adobe Acrobat® Reader. If you do not already have this program on your computer, please visit Adobe's Website to download a free copy.
|84 kb||294 kb|| Tab A - Summary of Wyoming Water Law
|51 kb||185 kb|| Tab B - Summary of Interstate Compacts and Decrees
|19 kb||77 kb|| Tab C - Palisades Reservoir Contract
|44 kb||162 kb||Tab D - Agricultural Water Use|
|37 kb||83 kb||Tab E - Cropping Patterns|
|159 kb||316 kb||Tab F - Irrigation Diversion Operation and Description|
|161 kb||470 kb||Tab G - Irrigated Lands and Permit GIS Data|
|84 kb||251 kb||Tab H - Municipal Uses|
|429 kb||735 kb||Tab I - Domestic Uses|
|14 kb||138 kb|| Tab J - Industrial Uses
|189 kb||150 kb||Tab K - Recreation Uses|
|37 kb||125 kb|| Tab L -
|206 kb||1512 kb|| Tab M - Major Reservoirs
|227 kb||894 kb|| Tab N - Instream Flows
|24 kb||66 kb|| Tab O - Water Quality
- Water Quality - Appendix A
- Water Quality - Appendix B
|291 kb||197 kb||Tab P - Surface Water Data Collection and Study Period Selection|
|247 kb||290 kb|| Tab Q - Spreadsheet Model Development
|206 kb||356 kb|| Tab R - Available Surface Water Determination
|180 kb||1223 kb||Tab S - Available Groundwater Determination|
- Groundwater Figures
|321 kb||199 kb||Tab T - Historic and Current Economic and Demographic Conditions|
|494 kb||314 kb||Tab U - Future Economic and Demographic Scenarios|
|443 kb||236 kb|| Tab V - Future Water Demand Projections
|363 kb||1049 kb||Tab W - Future Water Use Opportunities|
|47 kb||179 kb|| Tab X - Water Conservation
|50 kb||130 kb|| Tab Y - Institutional Constraints
|14 kb||74 kb|| Tab Z - Salmon Recovery Efforts in the Snake River Basin
There are eight spreadsheet workbooks, one for each of three hydrologic conditions(wet, normal, dry) and one master for each of the two distinct areas:
For further information including both a user's guide and engineering documentation of the models please refer to the Spreadsheet Model Development and Calibration.
Steps for Downloading the Models
The three workbooks (wet, dry and normal years) for each area are yoked together with a simple menu-driven graphical user interface (GUI), effectively creating four area models. In addition, the spreadsheet models are stored as zipped Microsoft Excel files using WinZip compression software. An evaluation version of WinZip may be downloaded at http://www.winzip.com/download.htm
|Snake River Model|| 990 kb compressed |
5,955 kb uncompressed
|Salt River Model|| 778 kb compressed |
4,907 kb uncompressed
* Please note that these files are in read only format. Any changes to the models made by the user may change the results and must be saved with a new file name.
** For Windows XP users - Due to additional security levels, XP users may have to manually change their security levels. If you receive a message when opening Microsoft Excel that reads as follows: "Macros in this workbook are disabled because the security level is high..." click OK and perform the following routine: Under the Tools menu, click on Macro then Security. Change the Security Level to Medium, this will enable the user to go to the Spreadsheet Model Main Menu.