Thanks, Poseidon. You are right, they do seem similar, except I believe you are working with a larger surface area. My NRCS agent I just walked the entire property with the GPS yesterday. The flagged waterline was included in the mapping along with new drives and a couple of nature trails. I expect we will come in around 4.5 - 5 acres surface. The depth will calculate around 35 - 40 ft/acres. Our watershed estimates at 55 ac. On the bad side, this is less than ideal for fill up and maint (but definitely not a deal-breaker). On the good side, a frog strangler shouldn't keep me awake at night worrying. Under normal, average precip and evap. I am guessing 2 years to fill, but hope this is conservative. What we have now is the quick stuff that appears to be filling fast as an illusion. The rest of it is the bulk; that is where reality sets in. Hey, it gives me time to do more structure stuff and bird habitat. How goes your project?
