MB, you’re right with respect to the current regulatory environment. You’d end up worse off than the land owner out in Wyoming not too far from Whirlibird who simply built a small pond. But after a collapse, which would render the alphabet agencies useless, who’d stop you from building what you wanted? It could even lead to potentially more local cooperation if you worked it right. Certainly it couldn’t be kept a secret, so a cooperative effort both to build and secure it could be very beneficial (and would be virtually essential, it would seem). Nice tribe-building potential, with significant upgraded living conditions for those involved. Some quiet pre-planning could prove very useful with those you trust. Needed equipment and “parts” could be systematically acquired and stored for future use. The potential is exciting.