This is not a runoff question, it's a watershed area question. Some ponds saw a bigger rise from less rain because there watershed areas were bigger. A 9 acre shed area for a 1 acre pond is on the small side.

Of course there are many variables, the most important one being it needs to rain, secondly you have to have ample watershed or your pond will only rise minimally without being supplemented.

My watershed area is undersized so I pump water up from a stream below a few times a year when it gets too low.

Last edited by ToddM; 11/30/15 01:07 PM.