08-22-2007, 03:46 AM
Right now there is a lot of FREE black sand from the Wailoa dredging. It has tested safe (a fact that seemed to surprise the county). The only hitch is, like all ocean beach sand, it has a very high salt content, and most likely is not good for concrete, unless you want a really low temp cure (just joking...but they do add salt to concrete up north in the winter...) Of course you can wash it, but it really does have a lot of salt....which does kill most planting & such.