I've got the option to carve out 20 or so acres from a few hundred, and I'm curious what part of it is best when it comes to pond construction(if any of it is). I mapped it with the web soil survey, but I don't really know how to read the data. I'll paste the soil types below.

Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
7 Austin silty clay, 1 to 3 percent slopes 84.4 14.4%
8 Austin silty clay, 2 to 5 percent slopes, eroded 19.0 3.2%
24 Chatt clay, 1 to 3 percent slopes 1.1 0.2%
34 Eddy very gravelly clay loam, 1 to 3 percent slopes 67.7 11.6%
35 Eddy very gravelly clay loam, 3 to 8 percent slopes 0.5 0.1%
37 Ferris clay, 5 to 12 percent slopes 12.7 2.2%
39 Ferris-Heiden complex, 2 to 5 percent slopes 81.3 13.9%
43 Heiden clay, 1 to 3 percent slopes 88.0 15.0%
48 Houston Black clay, 0 to 1 percent slopes 36.8 6.3%
49 Houston Black clay, 1 to 3 percent slopes 45.2 7.7%
54 Krum silty clay, 0 to 1 percent slopes 1.0 0.2%
70 Stephen silty clay, 1 to 4 percent slopes 66.0 11.3%
71 Stephen silty clay, 3 to 5 percent slopes 1.4 0.2%
72 Sunev clay loam, 5 to 15 percent slopes 53.9 9.2%
78 Venus loam, 3 to 5 percent slopes 25.1 4.3%
W Water 1.2 0.2%
Totals for Area of Interest 585.4 100.0%

I'm wanting about an acre of water, so a pond liner is really out of my price range. Am I looking for a certain type of soil, clay percentage, etc?