Wyoming Administrative Code › Agency 020 - Environmental Quality, Dept. of › Sub-Agency 0002 - Air Quality › Chapter 6 - Permitting Requirements › Section 6-9 - Best available retrofit technology (BART)

Current through July 13, 2024
(a) Applicability.
				The provisions of this regulation apply to existing stationary facilities, as
				defined in Section 9(b) of this chapter.
(b) Definitions.
"Adverse impact on visibility"
means visibility impairment which interferes with the management, protection,
				  preservation, or enjoyment of the visitor's visual experience of the Federal
				  Class I area. This determination must be made on a case-by-case basis taking
				  into account the geographic extent, intensity, duration, frequency and time of
				  visibility impairments, and how these factors correlate with 1) times of
				  visitor use of the Federal Class I area, and 2) the frequency and timing of
				  natural conditions that reduce visibility. This term does not include effects
				  on integral vistas.
"Applicable technology"
means
				  a commercially available control option that has been or is soon to be deployed
				  (e.g., is specified in a permit) on the same or a similar source type or a
				  technology that has been used on a pollutant-bearing gas stream that is the
				  same or similar to the gas stream characteristics of the source.
"Available technology"
means
				  that a technology is licensed and available through commercial sales.
"Average cost effectiveness"
means the total annualized costs of control divided by annual emissions
				  reductions (the difference between baseline annual emissions and the estimate
				  of emissions after controls). For the purposes of calculating average cost
				  effectiveness, baseline annual emissions means a realistic depiction of
				  anticipated annual emissions for the source. The source or the Division may use
				  State or Federally enforceable permit limits or estimate the anticipated annual
				  emissions based upon actual emissions from a representative baseline
				  period.
"BART alternative"
means an
				  alternative measure to the installation, operation, and maintenance of BART
				  that will achieve greater reasonable progress toward national visibility goals
				  than would have resulted from the installation, operation, and maintenance of
				  BART at BART-eligible sources within industry source categories subject to BART
				  requirements.
"Best available retrofit technology
				  (BART)"
means an emission limitation based on the degree of
				  reduction achievable through the application of the best system of continuous
				  emission reduction for each pollutant that is emitted by an existing stationary
				  facility. The emission limitation must be established, on a case-by-case basis,
				  taking into consideration the technology available, the costs of compliance,
				  the energy and non air quality environmental impacts of compliance, any
				  pollution control equipment in use or in existence at the source or unit, the
				  remaining useful life of the source or unit, and the degree of improvement in
				  visibility which may reasonably be anticipated to result from the use of such
				  technology.
"Deciview"
means a measurement
				  of visibility impairment. A deciview is a haze index derived from calculated
				  light extinction, such that uniform changes in haziness correspond to uniform
				  incremental changes in perception across the entire range of conditions, from
				  pristine to highly impaired. The deciview haze index is calculated based on the
				  following equation (for the purposes of calculating deciview, the atmospheric
				  light extinction coefficient must be calculated from aerosol
				  measurements):
Deciview haze index = 10 lne
				  (bext/10 Mm-1)
Where bext = the atmospheric light
				  extinction coefficient, expressed in inverse megameters
				  (Mm-1).
"Existing stationary facility"
means any of the following stationary sources of air pollutants, including any
				  reconstructed source, which was not in operation prior to August 7, 1962, and
				  was in existence on August 7, 1977, and has the potential to emit 250 tons per
				  year or more of any visibility impairing air pollutant. In determining
				  potential to emit, fugitive emissions, to the extent quantifiable, must be
				  counted.
(i) Fossil fuel-fired steam
				electric plants of more than 250 million British thermal units (BTU) per hour
				heat input that generate electricity for sale.
(A) Boiler capacities shall be aggregated to
				determine the heat input of a plant.
(B) Includes plants that co-generate steam
				and electricity and combined cycle turbines.