There has been some initial research, which was done in collaboration with Alberta Agriculture and Forestry, using potash to treat irrigation pipelines. That would entail ensuring that the potash was mixed with the water in the appropriate concentration, injecting that mixture into the pipeline and holding that concentration for a minimum period of time to ensure that there would be appropriate killing of the mussels that may be in that pipeline.
We do not have any invasive mussel species present in our infrastructure yet, so when that research was conducted, it was a lot of theoretical work, but we do feel confident that it is a potential treatment option for our pipelines. However, it would be extremely costly. We anticipate that given the length of the infrastructure in place, we would not be able to treat all of the infrastructure in one season. As well, we have to coordinate with the irrigation demand of our agricultural producers. It's not simply an easy treatment option at all.