§ 52.675 Control strategy: Sulfur oxides—Eastern Idaho Intrastate Air Quality Control Region.
(a)
(1) Regulation R of the Rules and Regulations for the Control of Air Pollution in Idaho, which is part of the sulfur dioxide (SO2) control strategy, is disapproved since it is inconsistent with the purposes and provisions of subpart G of this chapter. These requirements are not met by Regulation R in that the SO2 control strategy contained therein is not adequate for the attainment and maintenance of SO2 national ambient air quality standards (NAAQS).
(2) Rules 1-1801 through 1-1804 (Rules for Control of Sulfur Oxide Emissions from Sulfuric Acid Plants) of the “Rules and Regulations for the Control of Air Pollution in Idaho” are inadequate to ensure attainment and maintenance of Sulfur Dioxide National Ambient Air Quality Standards in the Eastern Idaho Intrastate Air Quality Control Region. Special limits have previously been established for certain existing acid plants in this Air Quality Control Region (§§ 52.670(c)(15) and 52.675(b)). Therefore, Rules 1-1801 through 1-1804 are approved except as they apply to existing acid plants with approved or promulgated emission limits that are more stringent than the limit found in 1-1802.
(b) Regulation for control of sulfur dioxide (SO2) emissions: Sulfuric Acid Plants. (1) The provisions of this paragraph shall apply to the owner(s) and operator(s) of The J. R. Simplot Company's Minerals and Chemical Division, located in Power County, Idaho, in the Eastern Idaho Intrastate Air Quality Control Region.
(2) The owner(s) and operator(s) of The J. R. Simplot Company facility shall utilize best engineering techniques in the operation of their plant to prevent fugitive SO losses. Such techniques shall include but are not limited to:
(i) Operating and maintaining all conducts, flues, and stacks in a leakfree condition.
(ii) Operating and maintaining all process equipment and gas collection systems in such a fashion that leakage of SO2 gases will be prevented to the maximum extent possible.
(3) The owner(s) and operator(s) of The J. R. Simplot Company facility shall limit SO2 emissions from their sulfuric acid plants per the following:
(i) The combined SO2 emissions from the designated 100 and 200 sulfric acid plants shall not exceed 2 kilograms (kg) per metric ton (4 pounds per ton) of 100 percent sulfuric acid produced.