Here in eastern SD just across the border, we have not used phosphorus in our standard lawn mix for 15 years. A large percentage of the lawns we treat have been on the program the entire time, with no adverse result.
In this part of the country, soil tests consistently show excessive amounts of phosphorous and potash as well.
Letting them ban potential pollutants that we really won't miss at all, gives us more leverage to keep the uses of the products we really need
Austreim Landscaping Inc