Regulatory Text:
Oklahoma Administrative Code.  Title 252.  Department of Environmental Quality

Chapter 100.  Air Pollution Control (OAC 252:100)

SUBCHAPTER 31.  CONTROL OF EMISSION OF SULFUR COMPOUNDS

PART 3.  EXISTING EQUIPMENT STANDARDS, SIP effective January 3, 2000 (OKc48) to September 2, 2019.
As adopted in Oklahoma Register May 16, 1994 (11 Ok Reg 2031) effective May 26, 1994.
Approved by EPA November 3, 1999 (64 FR 59629) effective January 3, 2000 (OKc48).

Sections:
252:100-31-12.  Sulfur oxides, OKc48
252:100-31-13.  Sulfuric acid mist, OKc48
252:100-31-14.  Hydrogen sulfide, OKc48
252:100-31-15.  Total reduced sulfur, OKc48

252:100-31-12.  Sulfur oxides

     (a)  Standard.  No person shall cause, let, suffer or allow any emission of sulfur dioxide from existing equipment which results in an ambient air concentration of sulfur dioxide at any given point in excess of 1300 μg/m³ (0.50 ppm) in a five (5) minute period of any hour, a one (1) hour average exposure of 1200 μg/m³ (0.46 ppm), a three (3) hour average exposure of 650 μg/m³ (0.25 ppm), or a 24-hour average exposure of 130 μg/m³ (0.05 ppm) of sulfur dioxide contributed from any one source or an annual arithmetic mean of 80 μg/m³ (0.03 ppm).  These limitations shall not apply to ambient air concentrations occurring on the property from which such emission occurs, providing such property, from the emission point to the point of any such concentration is controlled by the person responsible for such emission.

     (b)  Determination of violation.  Violations of 252:100-31-12(a) may be determined by the Executive Director by use of appropriate material balances and/or emission factors, and on the basis of the ambient air concentration by the use of appropriate atmospheric dispersion models approved by EPA.  Determinations made by the Executive Director using these procedures indicating that the limits set in 252:100-31-12(a) have been exceeded shall constitute prime evidence that the standard has been violated.  Source operators may use these same procedures in lieu of ambient air monitoring as proof of compliance with limits set in 252:100-31-12(a).

252:100-31-13.  Sulfuric acid mist

     After January 10, 1979, no person shall cause, let, or allow emissions of sulfuric acid mist from any existing sulfuric acid plant in an amount greater than 0.5 pound of sulfuric acid mist per ton of acid produced (250 grams per metric ton) the production being expressed as 100 percent sulfuric acid (H₂SO₄).

252:100-31-14.  Hydrogen sulfide

     (a)  Standard.  No person shall cause, let, suffer, or allow any emission of hydrogen sulfide from any source which results in an ambient air concentration of hydrogen sulfide at any given point of 0.1 ppm for a 30-minute period.  This standard shall not apply to ambient air concentrations occurring on the property from which such emission occurs, providing such property, from the point of any such concentration is controlled by the person responsible for such emission.

     (b)  Determination of violation.  Violation of 252:100-31-14(a) may be determined by the Executive Director by use of appropriate material balances and/or emission factors, and on the basis of the ambient air concentration by the use of appropriate atmospheric dispersion models approved by EPA.   Determinations made by the Executive Director using these procedures indicating that the limits set in 252:100-31-14(a) have been exceeded shall constitute prime evidence that the standard has been violated.  Source operators may use these same procedures in lieu of ambient air monitoring as proof of compliance with limits set in 252:100-31-14(a).

     (c)  Testing procedures.  Testing procedures for ambient air concentration of hydrogen sulfide shall use either of the following:
          (1)  Paper Tape Method, American Iron and Steel Institute (A.I.S.I.) type sampler with lead acetate impregnated paper tape;         
          (2)  Methylene Blue Calorimetric Method; or,
          (3)  other methods acceptable to the Executive Director.

252:100-31-15.  Total reduced sulfur

     (a)  Standard.  After November 15, 1985, all affected facilities shall limit emissions of total reduced sulfur released during the Kraft pulping operation, to those listed in this Section or have an approved plan which is to be submitted to the Director by May 15, 1984.  Approval of all such plans shall reside with the Air Quality Council and in no case shall the time frame for compliance exceed May 9, 1989. 
          (1)  The applicable limits are:
               (A)  forty (40) parts per million (ppm) of total reduced sulfur measured as hydrogen sulfide on a dry basis and on a 12-hour average, converted to eight (8) volume percent oxygen from any recovery furnace;
               (B)  forty (40) parts per million of total reduced sulfur  measured as hydrogen sulfide on a dry basis and on a 12-hour average, corrected to ten (10) volume percent oxygen from any lime kiln; and,
               (C)  0.016 gram of total reduced sulfur measured as hydrogen sulfide per kilogram of black liquor solids for a 12-hour average from any smelt dissolving tank.
          (2)  Non-condensable gases from all evaporators and digesters shall be efficiently incinerated or otherwise treated to limit emissions to less than five (5) ppm by volume on a dry basis.

     (b)  Determination of violation.  Violation of 252:100-31-15(a) may be determined by the Executive Director by use of appropriate material balances, continuous emission monitoring data, and/or emission factors.  Stack sampling conducted by the source will be required to demonstrate compliance, following  40 CFR Part 60, Appendix A, Test Methods.

     (c)  Continuous emission monitoring.
          (1)  Existing sources listed below are required to monitor emissions as described.
               (A)  Fossil fuel-fired steam generators.  Continuous monitoring of sulfur dioxide emissions is required for fossil fuel-fired steam generators where the source utilizes an air pollution abatement operation to make a significant reduction in the emissions of sulfur dioxide.  Continuous monitoring of oxygen or carbon dioxide is required where it is necessary to convert sulfur dioxide monitoring results.
               (B)  Sulfuric acid plants.  Continuous monitoring of sulfur dioxide is required for sulfuric acid plants required to limit emissions by the applicable requirements of this Subchapter where the production capacity is greater than 300 tons per day expressed as 100% acid except where the conversion of sulfuric acid is utilized as a means of preventing emissions to the atmosphere of sulfur dioxide or other sulfur compounds.
          (2)  Required monitoring systems will be installed, calibrated, maintained, and operated in accordance with 40 CFR 60, Appendix B.
          (3)  Required monitoring systems will be installed, calibrated, maintained, and operated in accordance with 40 CFR 51, Appendix P, hereby incorporated by reference.