367 A.2d 392 Commonwealth of Pennsylvania, Department of Environmental Resources v. Locust Point Quarries, Inc. Commonwealth of Pennsylvania, Department of Environmental Resources, Appellant. Commonwealth Court of Pennsylvania.Argued September 13, 1976 December 1, 1976. Environmental law — Air pollution — Air Pollution Control Act, Act 1960, January 8, P.L. (1959) 2119 — Words and phrases — […]