The risk-based basin analysis is one of the tools that we use in a broad-based, risk-based adaptive management approach that we're now using in the water quality monitoring program. Basically, we take geo-referenced information from a range of factors that can lead to water quality impairment. They include all of the factors that Ms. Gelfand mentioned earlier, such as run-off, agriculture, industrial activity of all kinds, population, waste water treatment plants, economic development, and climate change. We layer them onto a map and we come up with, on a basin basis across the country, a map of risk to water quality impairment in Canada.
On May 12th, 2015. See this statement in context.