All right. So this is road base. The cool thing about Road base. It has every particle size from clay all the way up to basically your three-quarter inch crushed rock. So what that allows is for all the voids in between the Rock and the sand particles to get filled with clay and you can get complete compaction that way and it also creates a really good water barrier because of that clay in there and you have complete compaction. It's rock hard and. That's where this makes really good road base because it doesn't allow the water to penetrate and get overly muddy as long as snow is not allowed to sit and saturate it and soak it for days on end. And we're going to put it all that road base down on the over the top of the weed fabric now. And compact it and we'll have a basically a waterproof membrane for our. Leach field.