The Minnesota pollution control agency is now urging people to be sparing when it comes to de-icing. Dan Olson information officer with the Minnesota pollution control agency said the amount of salt in Minnesota lakes and rivers is becoming a problem.
“Chloride levels in our lakes and streams are going up, a majority of people aren’t really aware just how much salt they should be using,” said Olson.
The excess salt that is used on sidewalks and driveways eventually runs into the streets and then into lakes and rivers.
“A 12-ounce mug holds about a pound of deicing salt, and one mug full of salt should be enough to do about 10 sidewalk squares, or about a 20-foot driveway.
Fifty Minnesota lakes and streams have chloride levels too high to meet the standard in order to protect fish and other aquatic life. The majority of the issues within the Twin Cities, however some rivers and lakes in Kittson County and Alexandria are being reported as impaired.
Some tips from Clean Water MN to reduce the amount of chloride: shovel before it turns to ice, use sand when its to cold, use salt only where critical, and clean up leftover salt to save and reuse for later.