Regulatory Text: 
Section 112.3.  Net Ground Level Concentrations.

(Approved by EPA 08/30/93 (58 FR 45457) at 52.2270(c)(76) effective 10/29/93.)

   (a) Except as specified in subsections (b) or (c) of this section or Section 112.4 of this title (relating to Net Ground Level Concentration - Exemption Conditions), no person in the State of Texas may cause, suffer, allow, or permit emissions of sulfur dioxide (SO2) from a source or sources operated on a property or multiple sources operated on contiguous properties to exceed a net ground level concentration of 0.4 part per million by volume (ppmv) averaged over any 30-minute period.

   (b) No person in Galveston or Harris County may cause, suffer, allow, or permit emissions of SO2 from a source or sources operated on a property or multiple sources operated on contiguous properties to exceed a net ground level concentration of 0.28 ppmv averaged over any 30-minute period.

   (c) No person in Jefferson or Orange County may cause, suffer, allow, or permit emissions of SO2 from a source or sources operated on a property or multiple sources operated on contiguous properties to exceed a net ground level concentration of 0.32 ppmv averaged over any 30-minute period.

As adopted by TACB 09/18/92 effective 10/23/92