I’m looking forward to reading the rest of your series on sewage treatment.
One thing that you might have included in your Halifax article is the (at the time) estimated additional cost of three plants vs. the one plant mentioned in the article.
This is of course an issue in the Victoria discussion. And indeed, given the difference in costs between the Victoria and Halifax proposals, surely your article should have addressed the overall cost estimates.
Don’t leave these issues to a summary article at the end, do the work now. Your article is interesting, but too short by one imagines a factor of two.