Read the full story at Inforum.
Salt applied to streets and roads to melt snow and ice is becoming a growing environmental concern in some areas of the country, including Minnesota, where 50 lakes are listed as impaired because of their salt levels.
Street and highway maintenance supervisors are aware of the problems that can result from the salt their crews deposit on roads, and have adopted new methods in recent years that help to reduce salt runoff as well as their operating costs.
