I went and looked at a property recently that had a small stream running through it. It also had some elevation change to it. The place looked pretty dry. It was near salem oregon so the summers there are probably longer and hotter than portland. I said to the realtor this looks perfect. I can build some swales and a pond higher up on the property and let it spill over into the seasonal creek. She laughed and said no you can't do that. Oregon owns all the rainfall. It's illegal to build a pond and collect it without a permit. I said ok how hard is getting a permit. She said it's quite difficult. The only way around it seems to be to build hard structures ( buildings, paved surfaces, etc) and collect rainwater off of that. This seems crazy to me that the gov't owns the rainfall. Is anyone else in oregon aware of workarounds for this? I couldn't find any rules on say growing cattails, rice, water chestnuts, etc in the stream or what the rules are on letting livestock drink from the stream. If the answer is no to all these things then the land is worthless. Without water there's pretty much nothing I can do besides grow drought tolerant trees and dry farm them. That's pretty risky.