This winter has demanded more salt than most. Over the course of this season, Madison plows and salt trucks have been out treating the roads 58 times compared with 34 times last year.
Chris Kelley with the Madison Streets Division said this winter, in one word, has been brutal.
?They've been smaller events, which means you use a little bit more salt than normal,? Kelley said.
That only adds to growing concerns about that salt?s effect on the surface water and well water in Madison.
Steve Fix, the chairman of Madison?s Committee on the Environment, has watched levels of sodium and chloride rise in the city?s water supply over the years.
?The levels are still way below the federal requirements where the city would have to take action,? Fix said.
Still, Fix said if the trend continues, it could be a problem.
According to data presented to the committee Monday, the amount of sodium and chloride in city water is increasing.