I'd have to think that as long as you have a couple of feet of good clay, properly compacted, the pond is going to hold water regardless of what's beneath the clay. I could be dead wrong on that, but a good clay barrier seems to be the real key ingredient in a successful pond. If you don't have it on site, it'll possibly have to be brought in.


Todd La Neve

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1.5 & .5 ac ponds - LMB, BG, RES, YP, GC, HSB