As far as the testing went, as illustrated in the graph above by the two nearly straight lines, the lake has fully turned over and restored oxygen to the entire body of water at all depths. This mixing should continue until the lake freezes. It is important to note that this is the first dissolved oxygen (DO) test conducted with the new meter. The previous DO meter has served us well but with parts no longer available it was only a matter of time before it needed replacement. Thanks again to the generous donors who made the purchase of this new meter possible.