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The outer limit of the cone of depression from coal seam dewatering 

 remained about the same distance north of the International Boundary 

 and total pumpage decreased 29 percent. 



The total estimate of seepage from the ash lagoons and polishing 

 ponds was 0.746 litre per second, well below the seepage limits 

 proposed by the International Poplar River Water Quality Board. The 

 leachate front was calculated to have advanced 6.11 metres towards 

 Cookson Reservoir since the ponds were first filled. 



Plant stack emissions did not cause or contribute to violation of 

 Montana, United States or Saskatchewan ambient air quality standards. 



