No. I believe we have significant understanding of the fluids we pump, so that in the event there was ever any groundwater contamination we would be able to tell, especially with the practices we've committed to in terms of baseline groundwater monitoring, in which we go in and take a sample of regional waters before there is any activity.
I must say, though, with all the wells that have been stimulated, there hasn't been a proven case in Canada of groundwater contamination, so that is an unlikely event.