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In summary, the differences in chemistry seen from samples of wells 

 completed within the coal zone(s) are not unreasonable, as the 

 coals pinch out against the Roncott platform. Water from well 16 is 

 developing a chemistry indicative of the coal zone in the western 

 half of the study area. This type of chemistry is most likely the 

 result of completing this shallow (85 feet) well in a thin stringer 

 of the Coronach Coal, rather than in the clastic portion of the 

 Ravenscrag Formation. 



