While this winter has not yet been typical for snow and ice, we have had a couple of occasions for applying deicer to walks and driveways. All deicers have environmental impacts — it takes just 1 tsp. of salt to pollute five gallons of water.
Sodium chloride (salt) will not work well at pavement temperatures below 15 degrees. If you do need to use salt, one to four cups of salt per 1,000 square feet should take care of the ice that remains after snow removal. There are alternatives to salt for melting ice if melting is necessary. Instead of soldium chloride use products containing magnesium or calcium chloride. Or better yet, shovel and spread sand