Ok thanks.

On the drainage it could be as much as 1.5 acres. Most of my 1 acre, and some of each of my adjoining neighbors' properties drain to my lot due to how our area is graded. I have this steep and deep canyon and most of my property sits lower than theirs, so I get a lot of their water too. I'm managing it with catch basins, buried downspouts, trench drains and corrugated 4" pipe, all of it feeds to this pond area.

I'll work with my contractor to make sure I have enough outflow capacity.

Thank you!