The amount of road salt that people, businesses, and cities are using over the winter is likely too much and is definitely hurting local waterways, according to the Ottawa Riverkeeper. The organization began monitoring how much road salt is making its way into local creeks last winter as part of its road salt monitoring pilot project. The Canadian Council of Ministers of the Environment has established federal guidelines around the amount of chloride — which is partly what salt breaks down into when it dissolves in water — in waterbodies.