Sewage Lagoons for Dawson? It appears the Yukon government is pushing forward with building sewage lagoons to replace the failed sewage treatment plant they built not too long ago. I believe they chose sewage lagoons as they are typically cost effective to build and operate and do work in Canada’s far north. What I don’t believe is that they have put much in the way of thought into this decision and have not done all the appropriate “due diligence” that should be done when determining “best options”.