RE:RE:RE:RE:RE:RE:RE:RE:Dry climate should reduce the issue?You linked to average climate data. I am talking about extremes.
Ponding is a term used in hydrology for a variety of settings where surface water occurs. A tailings facility is anecdotally referred to as a pond by many because they usually have excess process water ponded on the surface, or they are often saturated (which is hydrologically the same impact). A convective storm (thunder storm in common parlance) can dump several inches of rain in an hour and generate accumulation in the tailings pond.
This is an internally sourced concept, not an external flood generated by the river or otherwise. I'll repeat that since you insist on raising that issue.
Regardless, this is a pointless exchange. I wanted to correct some comments and comparisons to Mt. Polley because I have substantial expertise and experience with these matters, and you have turned it into a p*ssing match. Hopefully some of this has been of interest to the board to resolve the original point.