Current through Register Vol. XLI, No. 50, December 13, 2024
Section 45-10-4 - Standards for Manufacturing Process Source Operations4.1. No person shall cause, suffer, allow or permit the emission into the open air from any source operation an in-stack sulfur dioxide concentration exceeding 2,000 parts per million by volume from existing source operations, except as provided in subdivisions 4.1.1 through 4.1.5.4.1.1. No person shall cause, suffer, allow or permit sulfur dioxide tail gas emissions from sulfuric acid manufacturing plants to exceed the following: 4.1.1.a. For plants using elemental sulfur as a feed stock, 30 pounds per ton of acid produced.4.1.1.b. For plants using other materials as a feed stock, 40 pounds per ton of acid produced.4.1.2. No person shall cause, suffer, allow or permit the emission of sulfur oxides, calculated as sulfur dioxide, from a sulfur recovery plant to exceed 0.06 pounds per pound of sulfur processed.4.1.3. No person shall cause, suffer, allow or permit the emission of sulfur oxides, calculated as sulfur dioxide, from primary non-ferrous smelters to exceed that determined by the following equations: Copper Smelters: Y = 0.2X
Zinc Smelters: Y = 0.564X0.85
Lead Smelters: Y = 0.98X0.77
Where, X is the total sulfur fed to the smelter in pounds per hour and Y is the allowable sulfur dioxide emissions in pounds per hour.
4.1.4. No person shall cause, suffer, allow or permit the total sulfite pulp mill emissions of sulfur oxides, calculated as sulfur dioxide, from operations such as blow pits, washer vents, storage tanks, digester relief and recovery system, to exceed 9.0 pounds per air-dried ton of pulp produced.4.1.5. Any owner or operator of a manufacturing process source operation(s) which has the potential to emit less than 500 pounds per year of sulfur oxides.4.2. Compliance with the allowable sulfur dioxide concentration limitations from manufacturing process source operation(s) set forth in this rule shall be based on a block 3 hour averaging time.