COLUMBIA GAS OF PENNSYLVANIA, INC., PETITIONER, v. RAY MARSHALL, SECRETARY OF LABOR, AND OCCUPATIONAL SAFETY AND HEALTH REVIEW COMMISSION, RESPONDENTS. No. 80-1459.United States Court of Appeals, Third Circuit.Argued October 14, 1980. Decided December 23, 1980. Rehearing Denied February 20, 1981. Page 914 Jane A. Lewis (argued), Carl H. Hellerstedt, Jr., Thorp, Reed Armstrong, Pittsburgh, Pa., […]