Wyoming State Water Plan, Wyoming Water Development Office
Rafting on Snake River Lake Marie, Snowy Mountains Wyoming Wind River Range picture

STATEWIDE FRAMEWORK PLAN: Updated Data Tables
2007: Data Table

Summary of Current and Projected Future Water Uses from Most Recent Update
River Basin Current Use1 30-Year Projections1
High Scenario Mid Scenario Low Scenario
Surface Water (ac-ft)
 Bear (2011)   97,460      100,966    
 Green (2010)2   589,316   784,675   680,076   608,295 
 Northeast (2003)   92,500   99,200   96,300   93,000 
 Platte (2006)   780,700   962,000   898,200   883,200 
 Powder/Tongue (2002)   207,600   267,200   237,300   209,300 
 Snake/Salt (2014)4   157,215   161,088   153,152   143,267 
 Wind/Bighorn (2010)2   1,245,800   1,340,400   1,256,800   1,177,200 
Total Surface Water (2007)  3,313,000  5,460,000  3,696,900  3,403,000
Groundwater (ac-ft)
 Bear (2011)   3,098      3,259    
 Green (2010)3   800   1,100   1,100   900 
 Northeast (2003)   30,500   56,300   44,100   35,200 
 Platte (2006)   124,400   126,100   118,500   100,900 
 Powder/Tongue (2002)   2,500   3,300   3,200   2,800 
 Snake/Salt (2014)4   8,865   13,072   10,832   9,364 
 Wind/Bighorn (2010)1   24,600   57,000   51,100   40,200 
Total Groundwater (2007)  174,400   217,600  185,600  156,500

Values in RED indicate basins updated since previous statewide plan.
  1. Wind/Bighorn River Basin industrial use and projections are based on water rights rather than actual consumption. This tends to overstate oil and gas industry use as well as other uses.
  2. 50-Year Projections.
  3. Total groundwater depletions not directly estimated in 2010 Update.
  4. 20-Year Projection. Includes Reservoir evaporation as a use.