I used seepage control on two projects in eastern NE this year. The first was a constructed wetland about 1.25 acres in size, the other was a 4 acre sandpit along the Elkhorn river. The first was a slam dunk, good soil and compaction. The application has worked very well, with no seepage. The second application was just recently finished and the verdict is still out on that one. I have had no problems with the guys from seepage control, everything they have told me so far has been true and they have been very easy to work with. I beleive that in most ponds and lakes at least in the Midwest, the ESS-13 is a better choice than bentonite. Recommended rates of powder bentonite on the 4 acre sandpit was 2.5 pounds per square feet. So we needed about 435,600 pounds. Even if they are giving it away, trying to get 400,000 pounds of anything shipped to NE was not cost effective. With the ESS-13, if the equiptment is there, 4 guys can seal a 4 acre pond in one day. This saved me thousands of dollars in labor vs. bentonite. Finding the right location for a pond or lake is still the best bang for the buck, but it is nice to have some options when trying to seal ponds and lakes.
