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PREV Previous PREVIOUS Experience the Magic at the Hot Air Affair Experience the Magic at the Hot Air Affair Hudson Hot Air Affair is just a couple weeks away and things… NEXT Next Up NEXT UP Safety depends on proper vehicle maintenance during winter season Winter in Wisconsin brings months of slippery conditions and subzero weather, so… Reduce salt use this winter

19 Jan 2023 6:56 AM | Smart About Salt (Administrator)

Reduce salt use this winter | News | baldwin-bulletin.com

The Wisconsin Department of Natural Resources (DNR) and Wisconsin Salt Wise invite the public to learn more about the impacts of road salt on our drinking water and freshwater ecosystems during Wisconsin Salt Awareness Week, Jan. 23-27, 2023.

Wisconsin Salt Awareness Week will include livestreams featuring speakers and topics focused on the true cost of salt and how to be a freshwater advocate. Speakers include Sujay Kaushal (University of Maryland), Charlie Paradis (University of Wisconsin – Milwaukee), Allison Couture (University of Wisconsin – Madison), Shannon Haydin (Wisconsin DNR) and Allison Madison (Wisconsin Salt Wise). Register in advance or watch afterward on the WI Salt Wise YouTube Channel.

While salt keeps Wisconsin roads safe during winter, using more salt than needed comes at a price. In Wisconsin and much of the U.S., chlorides from salt are infiltrating lakes, streams, and groundwater. According to Wisconsin Salt Wise, one teaspoon of salt is all it takes to make five gallons of water toxic for freshwater organisms.

The DNR measures chloride levels in Wisconsin rivers over time, monitoring cumulative chloride loading results at 26 of the state’s largest river systems. Recent studies have shown a steep increase in chloride loads. In the early 2000s, the DNR measured about 600,000 tons of chlorides annually. By 2018, that number increased to nearly 800,000 tons per year. Fifty lakes and one stream in Wisconsin have been designated as impaired by high salt concentrations.

These increased chloride loads are partly due to road salting, but chlorides also enter Wisconsin waters because of water softeners and fertilizers. Find out if your softener is salt-wise with this diagnostic tool.

Increased chloride levels have significant impacts on our daily lives, including environmental and economic effects. Nationwide, winter salt causes $5 billion in damage to infrastructure each year, causing corrosion of bridges, roads, and other infrastructure. Road salt can also impact pets by causing irritated paws or other health concerns if ingested.

Salt Tips for Wisconsin Residents

Reducing salt use is key to decreasing chloride loads. Follow these steps to right-size your salt use:

  • Shovel: Clear walkways and other areas before the snow turns to ice. The more snow removed manually, the less salt you will need and the more effective it will be.
  • Scatter: When using salt, scatter it so that there is space between the grains. A 12-ounce coffee mug of salt is enough to treat an entire 20-foot driveway or 10 sidewalk squares. If you see oversalting, follow these simple steps to help educate others about salt.
  • Switch: Salt won’t work when pavement temperatures drop below 15 degrees. Switch to sand for traction or a different ice melter that works at lower temperatures.

Statewide Reduction Efforts

The DNR works to reduce chlorides at the source through permitting programs for municipalities and industries. These measures include tuning up or replacing water softeners, identifying significant chloride contributors, and finding reductions, process efficiencies or improvements and instituting sewer use ordinances.

Additionally, the Wisconsin Department of Transportation works with Wisconsin counties to reduce road salt application using brine and pre-wetting road surfaces, both of which significantly reduce salt use.

For more information on the DNR’s efforts to monitor chlorides and reduce their effects, visit the DNR’s Salt and Storm Water website here.

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