Hold the Salt - Road Salt is Bad for the River

One of the final improvements to the water quality standards that govern the Chicago River system is a new level for chlorides intended to reduce the impact the decades' long increase in the use of road salt has had on the river system. The new standard, which is 1,500 milligrams per liter during the winter and 500 milligrams per liter during the summer until 2018 when it drops to 500 milligrams per liter year round, will promote healthier environment that does not interfere with the life cycles of aquatic life.

Find out more about chloride and the Chicago River system.