Well I wanted to post my results so far. It has been a little over 48 hours now since I applied DB-100 and the water level has receeded right around an inch from the marks I had made at several locations at water line on banks. It has been really hot the last two days but that seems a little excessive for evaporation in just two days so I assume i'm still seeping. I'll give it another few days and monitor losses more closely but at this point it may be time to go ahead and start making those "dump site" signs to post out by road.