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GROUNDWATER QUANTITY 



Saskatchewan 



Coal Mine Dewa taring 



3 

 Due to coal mine dewatering activities, a total of 5 532 dam 



(4 485 acre-feet) of groundwater was discharged during 1987. This 



amounts to 10 percent more pumpage than in the previous year. A 



summary of the monthly pumpages from all the coal dewatering wells 



is shown in Table 5 . 



Table 5. 1987 Monthly PtJinpages from Mine Dewatering Activities 



Month 



Total (dam3) 



Pumpages 



Rate (L/s) 



January 



February 



March 



April 



May 



June 



July 



August 



September 



October 



November 



December 



Total 



322 120 



519 194 



592 221 



572 221 



467 174 



469 181 



574 215 



538 201 



463 179 



338 126 



344 133 



334 125 



5 532 dam3 (4 485 acre-feet) 



The ground water was discharged at 16 locations during 1987. 

 Fourteen discharge points were to Girard Creek, one directly to 

 Cookson Reservoir, and one was into a tributary of Goose Creek. No 

 water from the latter reached the mainstera channel of Goose Creek. 



