The weir is made of placed rock and is above the surface for most of its 500 foot length, except for a 50 foot gap that stops far enough below the surface to allow boat traffic.

Barring a massive rain event, which we get from time to time, further ash movement into the Clinch River should now be prevented. We're still a few days away from getting the sonar survey started that will map out where the stuff really is.

One scientist that I spoke with yesterday said there is the possibility that it may be further down stream than thought depending on the characteristics of the sediment on the leading edge of the flow. If it entered the Clinch, unlikely but we don't know yet, I suspect it should be allowed to just lie there, given the good results of water quality data from the water intakes at the treatment facilities. The Clinch River contains sediment that flowed out of the Oak Ridge White Oak Creek containment pond when it collapsed in the fifties.

All dredging activity is planned for the Emory River basin only. This is a good thing.