Prediction of diffuse sulfate emissions from a former mining district and associated groundwater discharges to surface waters.

Highlights: [•] Prediction of mining impact on groundwater and surface water quality. [•] Mining impact controlled by mixing and sulfate reduction. [•] Predicted diffuse mine drainage into a river corresponds to measurements. [•] Mining impact on river water is expected to quintuple within the next 40years. [ABSTRACT FROM AUTHOR]