So currently the dam is a little over halfway done. Up until yesterday the contractors hadn't worked in a week due to rain. There is currently 2-3 feet of water in the basin area. Upon inspection yesterday I found a very small trickle of water starting just below the dam (where dam meets undisturbed soil). There was always a small spring that started in this area. The water drop in the basin yesterday was about 1/4". My concern is where is the water coming from and what will happen and much higher pond volume with the increased water pressure.
The core trench was fairly deep into very good clay and nothing was trickling prior to recent rains, although another 30 yards below dam there was some running water.
Is this anything to be concerned about, or is it too early too tell. The contractor was a little concerned.
