Category Archives: Road salt use

Madison’s Well #14 Reaches Critical Chloride Contamination Level

Remedial Actions Triggered Some Residents of Lake Wingra Watershed Affected Madison, WI December 1–The Madison Water Utility announced yesterday that “Sodium levels in Well 14 are around 45 mg/L, higher than the recommended limit for people on salt-restricted diets. Chloride, … Continue reading

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Road Salt Use in Madison and Chloride Concentrations in its Lakes

The City of Madison, Wisconsin began spreading road salt on its streets in 1959. In the next 15 years ( by 1974), the chloride concentration in Lake Wingra tripled, and by 2014 had increased nearly seven fold from 18mg/L in … Continue reading

Posted in Chloride concentrations, Duck Pond Springs, Groundwater, Lake Wingra Watershed, Road salt, Road salt use | Tagged , , , | 1 Comment

An Open Letter to City of Madison Alders Regarding Use of Road Salt

Editor’s Note:  This guest post is an open letter that Madison resident Steve Arnold sent this month (March, 2015) to members (alders) of the Madison Common Council.  It concerns Madison’s long-term use of road salt and its persistent impacts on … Continue reading

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Chloride Levels in Wingra Watershed Springs

Springs around the Lake Wingra Watershed are highly salted and getting more so with every application of road salt and other ice melters to our highway system, according to a recent study. As we reported in a earlier post, chloride … Continue reading

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Winter Road Salt a Persistent Impact on Madison Watersheds, Lakes, and Drinking Water

The road salt (usually sodium chloride) applied on our streets, sidewalks, and driveways to make winter driving and walking easier, does not just disappear once the storm is over.  It mixes with melt water or rainfall and washes down the … Continue reading

Posted in Friends of Lake Wingra, Groundwater, Lake Wingra, Lake Wingra Watershed, Madison lakes and beaches, Road salt use | Tagged , , , , , , , | 5 Comments