Application Rates: Introduction
Applying the right amount of salt is one of the most effective ways for homeowners to maintain winter safety on their sidewalks and driveways while reducing environmental impacts. Most people are surprised to learn that effective melting requires far less salt than what is typically used. In fact, applying more salt than needed does not melt ice faster, it simply increases the amount of chloride that washes into our local waterways and accumulates over time.
By understanding proper application rates, we can maintain safe surfaces, use less product, and save money, all while preventing damage to sidewalks and landscaping and reducing environmental harm. The goal is to use the least amount of salt possible—if any is needed at all—while still keeping sidewalks and driveways safe.
Why use less salt?
Chloride from salt (sodium chloride) is a permanent pollutant. By reducing the amount of salt applied to driveways, sidewalks, and steps, we reduce the amount of chloride entering our streams, rivers, lakes, and groundwater. Chloride also damages soils, vegetation, concrete, vehicles, and can be harmful to wildlife. Using less salt helps save on costs of environmental and infrastructure damage.
The section Balancing Safety, Cost, and Environmental Impacts is all about the effects of salt on our environment.
Contracting for winter maintenance
Here are some tips to help you find a contractor that will use practices that minimize salt use. Some states have certification programs for snow and ice contractors. Look for a certified contractor.