ScribbleLive

@lillymunster, based on the visible steam ejections and the infrared data, those look like breach / leak spots. Today's zoom-in shows the NW rim spot to be somewhat off the rim and coming from below, hence my observations below. My report suggests the containment cap lifted briefly. If so, it have have fallen back into place by the overhead crane impacting it or by its own weight.

@lillymunster I did misuse the term dry well under brackets down there; please disregard it (I hadn't had my coffee yet). And yes, the level of water inside the RPV doesn't tell us how much water there is in the dry well; I had stated that in one of my previous comments.

What I'm trying to explain to you is where the concrete base mat is located. It's way under the RPV itself. The RPV is wrapped by a steel containment and then by the steel reinforced concrete primary containment. The base mat is the base of the primary containment so there's still some portion of steel reinforced concrete to corrode through until the molten core reaches the base mat. Look at the 3D diagrams in this other document (which is also linked up in my links on this page). www.nrc.gov

The torus, as you know, is the tube like conduct that runs around the lower part of the RPV and below that. It's top is slightly above the base of the RPV and its bottom goes under below. The base mat should run under the RPV down to below the level of the torus' bottom. My doubt is whether it is covered by the water level or not. One of your diagrams clearly shows that it is and the other later one (with the estimate of where the molten core might have escaped the RPV) clearly shows otherwise. I'll ask for update on this when I come back.

I will have to go now. Got stuff to do (although is was supposed to be my only day off of the week). Greetings, see you all later.

@elainekirk, that found that lost roll of duct tape!