(a) Except as provided in subsection (b) of this section, no person may cause, suffer, allow, or permit emissions of sulfur dioxide (SO2) from any solid fossil fuel-fired steam generator to exceed 3.0 pounds per million Btu (MMBtu) heat input averaged over a three-hour period.
(b) No person may cause, suffer, allow, or permit emissions of SO2 from any solid fossil fuel-fired steam generator located in Milam County, which began operation prior to January 1, 1955, to exceed 4.0 pounds per MMBtu heat input averaged over a three-hour period.
(c) Except as provided in subsection (d) of this section, beginning September 30, 1994, solid fossil fuel-fired steam generators of greater than 250 MMBtu heat input per hour which are equipped with SO2 control equipment shall be equipped with a continuous emissions monitoring system (CEMS) for SO2. The CEMS shall be installed, calibrated, and operated as specified in 40 Code of Federal Regulations Part 51, Appendix P, hereby incorporated by reference.
(d) In lieu of the requirements of subsection (c) of this section, beginning September 30, 1994, sources subject to the Federal Clean Air Act, §412(c) as amended in 1990 shall meet the requirements of §412(c) and the regulations promulgated thereunder.

Source Note: The provisions of this §112.8 adopted to be effective October 23, 1992, 17 TexReg 7085; amended to be effective July 16, 1997, 22 TexReg 6450