Highway deicing salt dynamic runoff to a stream leaking to groundwater is assessed
Stream chloride was sensitive to climate control release of applied motorway salt
> 3g/l stream chloride due to low dilution of salt-induced melt of highway snowfall
Dynamic streambed chloride leakage confirms stream acts as a line-source to aquifer
Severe winter stream leakage accounts for 54% of 70 t supply well chloride increase