020-2 Wyo. Code R. § 2-11

Current through April 27, 2019

Section 2-11 - Ambient standards for odors

(a) The ambient air standard for odors from any source shall be limited to:

• (i) An odor emission at the property line which is undetectable at seven dilutions with odor free air as determined by a scentometer as manufactured by the Barnebey-Cheney Company or any other instrument, device, or technique designated by the Division as producing equivalent results. The occurrence of odors shall be measured so that at least two measurements can be made within a period of one hour, these determinations being separated by at least 15 minutes.

(b) No person shall operate or use any device, machine, equipment, or other contrivance for the reduction of animal matter unless all gases, vapors and gas entrained effluents from such facility are incinerated at a temperature of not less than 1200 degrees Fahrenheit for a period not less than 0.3 second, or processed by condensation or such manner as determined by the Division to be equally or more effective for the purpose of controlling such emissions.

• (i) A person incinerating or processing gases, vapors, or gas entrained effluents pursuant to this rule shall provide, properly install, and maintain in good working order and in operation, devices as specified by the Division for indicating temperature, pressure, or other operating conditions.

• (ii) Effective odor control devices, systems, or measures shall be installed and operated such that no vent, exhaust pipe, blowoff pipe, or opening of any kind shall discharge into the outdoor air any odorous matter, vapors, gases, or dusts, or any combination thereof, which create odors in areas adjacent to the plant in excess of the limits described in Chapter 2, Section 11(a)(i) of this regulation.

(c) Odor producing materials shall be stored, transported, and handled in a manner that:

• (i) Odors produced from such materials are confined and that accumulation of such materials resulting from spillage or other escape is prevented.

(d) Whenever dust, fumes, gases, mist, odorous matter, vapors, or any combination thereof escape from a building used for processing animal matter in such manner and amount as to cause a violation of Subsection (a)(i) of this regulation, the Division may require that the building or buildings in which processing, handling, and storage are done be tightly closed and ventilated in such a manner that all airborne effluent materials leaving the building be treated by an effective means for removal or destruction of odorous matter before release to the open air.

020-2 Wyo. Code R. § 2-11

Amended, Eff. 10/13/2015.

Amended, Eff. 12/20/2016.

Amended, Eff. 2/5/2018.