we have detected these types of tear outs before and have had good luck finding silvers and indian heads the first thing we do is to talk to the supervisor of the construction crew to see if he has a problem if we detect the area as long as we don't interfere with his workers, most of the time there was no problem, one supervisor wanted us to wear safety vests so that his crew knew where we were so now I have a safety vest in my bag at all times just in case. the last place we didn't need it but we had it just in case so we didnt have to go looking around for a vest, we did get a few silvers even though the area turned out to be an old land fill and they were putting in a new play ground. definately go for it, hunt areas right after they scrape it off and before the new surface is layed down, good luck :detecting: :detecting: