Various mine drainage pollution abatement techniques completed during the construction phase of the Moraine State Park, Pennsylvania are evaluated. The remedial methods employed included strip mine reclamation, underground mine sealing, grouting, surface sealing, refuse pile removal, and oil and gas well plugging. The major objective of the pollution abatement project was to insure good eater quality in Lake Arthur. This was achieved; the water quality in the lake from the time of its initial inundation in 1969 to the present has had a range in analysis as follows: pH: 6.0 to 7.6, alkalinity 10 to 86 ppm, acidity: 0 to 6 ppm, iron: 0.2 to 3.0 ppm and manganese: 0 to 3.5 ppm. (Modified author abstract)