If a little is good—is more better? Perhaps not when it comes to applying salt to our roadways and parking lots. Recent sampling of several streams in New Hampshire found chloride—a primary component of road salt—at levels above state water quality standards. Testing of streams in the southern I-93 area found that, during various times of the year, chloride levels have exceeded state water quality standards in Beaver Brook, Dinsmore Brook, Policy Brook and a tributary to Canobie Lake. The watersheds for these brooks include parts of Salem, Windham, Derry, Londonderry, Auburn and Chester.