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Water table ponds will only fill to the water table. I have a water table pond. I dug it to 22' depth when the water table some years could be 3' below the surface. Last year I was 9 feet low (vertically measured) So, I'd dig it as deep as the pocket book allows. Save the blue clay, dig out the sandy area 2' bigger, pack the blue clay in that sandy area in 6" lifts, compact with a sheepsfoot roller, add another 6" lift repeat until you have 24" clay knitted together. I couldn't do that, it was just sand down to 18' depth. I can fill with a well, but it leaks right back out. Think of filling a bathtub without the plug in place.......

Go to your local NRCS office and have them figure out the watershed for that area. It's a no cost deal.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).