Mounds, Like much of the dimensions of all non-professional parks are all suspect. Field maintenence is usually not a priority beyond the constant dragging that most HS people do. I do not believe that I umpire on any fields that has the same mound height.
That being said, what can you do about it? Not Much. It is something that you have to deal with. I posted this in a question about base distances. There are a number of things in sports (not just baseball) that are assumed. Is the pitchers mound 60'6" from home, is the mound no higher than 10", are the bases right, is the hoop actually 10' off the floor?
When these things are found out the only fair way is to continue the inning so that no team
had an advantage. Once that inning was completed, call out the crew and get it fixed.
Now as for mound height, now way I am going to have a lazer transom handy to judge it. I have measured mounds with the old string and a ruler method. But thats like measuring with a yard stick and cutting with a hacksaw.....
PS OkieBisel..........Yes, this applies to colleges as well.......