Some beneficial management practices (BMPs) resulting from the Nutrient Management Act can take years
to have a positive impact on water quality. On the other hand, in the case of impacts on municipal
groundwater supplies, very strict management practices implemented on a small number of farms adjacent to municipal water wells can result in significant improvements.
According to Dr. David Rudolph, a Professor in the Department of Earth Sciences at the University of Waterloo, “we don’t necessarily need to involve the entire countryside in really draconian changes to land use practices if we do some very strict management of nutrients very close to municipal water wells.”