That sounds good. You are right that I did mis-interpret your intentions.

You said: "And I would only do it based on the result of watershed study confirming the volume of water moving around and ability to support new pond + existing pond."

Watershed size is very important. Too much and you have excessive flow through and problems with big rain events and too little and the pond level drops too much between major rain events. Getting the right size watershed in a watershed pond is always a compromise of some sort and the NRCS can help with the calculations and have experience with local conditions that are pertinent in your area. Also the guys in your general area will have a lot better idea and opinions on what a good watershed size would be.

My ponds have kind of a bare minimal watershed and I even terraced a farm field to bring in water to get to that point. Our average rainfall is something like 42" per year but some years we might get 20 more than that and other years ten less. Variation I sure Texas is also well used to. Some years I have excessive flow through but generally most often I could use a little more. Some regular flow through passes nutrient buildup on down stream and out of the pond and at times I could use a little more of that.

Good luck. Sounds like you have an exciting project ahead of you. Enjoy the process.

John

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