Where is the water coming from?

I have a barn about 125 feet from my home. In the bottom of that barn is a pipe extending out of the concrete floor. The pipe has a lot of water gushing out of it all of a sudden and I can’t get it to stop. Where is the water coming from? I’ve turned of all power to the barn, I’ve turned of my home’s main water line but the water is still gushing out. Sniff. . . where else could this water be coming from so forcibly? I need help? LOL and crying at the same time.