NAC445B.2205. Sulfur emissions: Other processes which emit sulfur.

     1. No person may cause or permit the emission of sulfur compounds where the sulfur originates in the material being processed, excluding hydrogen sulfide and sulfur from all solid, liquid or gaseous fuel, in excess of the quantity determined by the following equation:

E = 0.292P^0.904

when “E” is equal to or greater than 10 pounds per hour. When “E” is less than 10 pounds per hour, the gas stream concentration must not exceed 1,000 ppm by volume.

     2. For the purposes of subsection 1:

     (a) “E” means the allowable sulfur emission in pounds per hour.

     (b) “P” means the total feed sulfur, excluding hydrogen sulfide, in pounds per hour.

     3. When sulfur emissions are due to sulfur contributions from both the fuel and the material being processed, the allowable emissions must be the sum of those allowed by this section and NAC 445B.22047.

     4. Incinerators used solely for the control of odor by the combustion of noxious sulfur containing compounds are exempt from the provisions of NAC 445B.2204 to 445B.2205, inclusive, and are governed by the provisions of NAC 445B.22027 to 445B.22037, inclusive, and 445B.287 to 445B.3497, inclusive.

     5. A person shall not cause or permit the emission of any gas containing hydrogen sulfide which is discharged to the atmosphere from any emission unit unless the emission unit is vented, incinerated or flared, or the stream is otherwise disposed of, in a manner such that the ambient sulfur dioxide standards and the ambient hydrogen sulfide standards are not exceeded. Before construction, compliance with the ambient standards must be based on the applicable models, bases and other requirements specified in 40 C.F.R. Part 51, Appendix W, “Guideline on Air Quality Models,” adopted by reference pursuant to NAC 445B.221, except that the Director may authorize the modification of a model specified in the “Guideline on Air Quality Models” or the use of a model not included in the “Guideline on Air Quality Models” if the Director determines that such modification or use is appropriate.

     [Environmental Comm’n, Air Quality Reg. §§ 8.3.1-8.4, eff. 11-7-75]—(NAC A 9-5-84; 9-19-90; 12-26-91; 12-13-93; 10-30-95; 5-3-96; R105-97, 3-5-98; R125-04, 9-24-2004)