In respect to sewage treatment in the St. Lawrence River and Great Lakes: (a) how many Canadian cities in each waterway have achieved primary, secondary and tertiary treatment of wastewater effluent, respectively; (b) what is the comparable data for cities on the U.S. side of these aforementioned waterways; and (c) specifically, which Canadian cities fall into the three categories mentioned in (a)?
In the House of Commons on April 28th, 2010. See this statement in context.