I would just reinforce that. We had one well in particular that was hovering around that 4,000 level. Some days it might have been just under or over, and that's not good enough. We basically said we'd be above the 4,000 mark, and today we use 6,500 total dissolved solids. We're doing work to use even more saline water than that.
I don't know exactly how it is distributed, nor could I answer what the supply is, if that's what you were getting at. That question would probably have to go to some of the water experts.