The creek bed has been pretty much dry since May here, but yesterday I noticed that there's still a pool of clean water so I started digging. There's water running under the creek bed. My question is this: is that water just what's left of the creek or could it be a spring? It's about 6" down from what I can tell and pretty cool. I'm figuring that it's just the creek flowing underground. How can I utilize this water for washing laundry?