462 A.2d 969 Marcon, Inc. and Delaware Sewer Company, Petitioners v. Commonwealth of Pennsylvania, Department of Environmental Resources et al., Respondents. Commonwealth Court of Pennsylvania.Argued May 12, 1983 August 1, 1983. Environment — Scope of appellate review — The Clean Streams Law, Act of June 22, 1937, P.L. 1987 — Burden of proof — 25 […]