Salt overdose.

• Position: STATELINE - Brief article

Last winter's heavy snowfall and cold temperatures required record amounts of salt on roads, causing water quality concerns. In Wisconsin, the Department of Transportation estimates that a record 700,000 tons of salt was used on state highways, compared with 405,00 tons during the 2006-2007 winter. All that road salt washes into urban streams at levels that can kill aquatic life. Streams and rivers in the Lake...