We are doing something called our SPARROW model. Don't ask me to tell you exactly what SPARROW stands for. In essence, it's a measurement that links water quality with the historic data of the water flow and the nutrient loading to be better able to estimate the cumulative effects of the various inputs into the lake, including, of course, the question of climate change and all that circles around climate change.
On February 25th, 2014. See this statement in context.