Upper Yellowstone 



Clarks Fork Yellowstone 



Billings Area 



Bighorn 



Mid -Yellowstone 



Tongue 



Kinsey Area 



Powder 



Lower Yellowstone 



Figure A-1. The nine planning subbasins of the Yellowstone basin. 



TABLE A-1. 



Increased water requirements for coal development in the Yellowstone 

 Basin in 2000. 



Coal Development Activity 



Intermediate 

 High 



Intermediate 

 High 



30,000 

 90,000 

 120,000 



COAL MINED (rTHit/y) 



CONVERSION PRODUCTION 



b/d 



b/d 



200,000 b/d 



t/d 



t/d 



2300 t/d 



WATER CONSUMPTION (af/y) 



9,000 

 9,000 

 27,000 



43,350 

 147,160 

 321,190 



CONVERSIONS: 1 rant/y (short) = .907 mmt/y (metric) 

 1 af/y = .00123 hm^/y 



^No water consumption is shown for export under the low level of development because, for that 

 development level, it is assumed that all export is by rail, rather than by slurry pipeline. 



147 



