AWA has completed hundreds of PMP studies worldwide, following the storm-based approach while incorporating probabilistic aspects. AWA PMP studies have covered basins ranging from less than a square mile to overall regions larger than the state of Texas. All meteorological and topographical combinations have been analyzed as well, from tropical rainforest to glaciated regions and from the driest location on earth to some of the wettest. Because of this we have proven experience calculating PMP depths in every meteorological and topographical combination possible. Just as important, all of AWA PMP studies have been accepted by the appropriate dam safety regulator from the state, provincials, and Federal levels.