Figure 5 



Probability Distribution of Water Volume Change Between Miles City and Dam 

 Irrigation season May- September, 1947-1988, Tongue River 



E 

 ■ 

 •a 



> 

 m 



3 



c 

 1 



o 



40000 



30000 

 20000 



e 

 > 



Vo<um« diffarvno* t>*(w*«n Mil*s CJty and dam s waier consumM. lost and gained 

 (d)v«rsions. daplcoont, rvtum iViws. ovaporation. and surfac* and gniunowalar njroH). 



Psfoent at 8me volume of water consumed/lost equaJs or exceeds the given vaJue. 

 (••0.. 92% of Dme mere is a net loss; 8% ol ame net gain, and 20% of ame net loss exceeds 56.000 af) 



y . - 8.171S»M * 1957.5X - 38.949x«2 . 0.29S45x*3 R'2 • 0.963 



100 



Figure 6 

 Tongue River - Groundwater Discharge into the River (Nov. 2-5, 1977) 



j ■ \ ' \ \ ' i ' ! ' 



-10 



■20 



i I ! I i u i i 



TTTjTTTT 



...j...:-..i...j."i"* 



iO-i 



* i<ii.;...»...;... f 



■*■■*■■■; 



TT 



16 



River Mile From the 0am 

 y = 0.76962- 0.1 5762X . 1 2873e-2i'2 ■ 8 3108e-5x"3 ♦ 1 6272»-7x'4 H"2 = 928 



