far they've laid around seven and a half thousand kilometers of the artificial textile casing. to ensure the water flows off along the wick terrains the mud is squeezed in similar style to a sponge. layer upon layer of sand gravel and mineral soil are then piled on top of the mud. the work here won't be finished for another ten years germany seems to have a plan for dealing with this toxic legacy the u.s. less so. in the german approach shows one essential difference to the us the clean up operations there are primarily focused on the processing plants. meanwhile little or nothing is done with the mining facility. so as a business to close with this. on the navajo nation reservation dustin meets around a riggs who is also