Collapse to view only § 51.1205 - Ongoing data requirements.
- § 51.1200 - Definitions.
- § 51.1201 - Purpose.
- § 51.1202 - Applicability.
- § 51.1203 - Air agency requirements.
- § 51.1204 - Enforceable emission limits providing for attainment.
- § 51.1205 - Ongoing data requirements.
§ 51.1200 - Definitions.
The following definitions apply for the purposes of this subpart. All terms not defined herein will have the meaning given them in § 51.100 or in the Clean Air Act (CAA). Air agency means the agency or organization responsible for air quality management within a state, local governmental jurisdiction, territory or area subject to tribal government. Annual SO
Applicable source means a stationary source that is:
(1) Not located in a designated nonattainment area, and
(2) Has actual annual SO
§ 51.1201 - Purpose.
The purpose of this subpart is to require air agencies to develop and submit air quality data characterizing maximum 1-hour ambient concentrations of SO
§ 51.1202 - Applicability.
This subpart applies to any air agency in whose jurisdiction is located one or more applicable sources of SO
§ 51.1203 - Air agency requirements.
(a) The air agency shall submit a list of applicable SO
(b) For each source area subject to requirements for air quality characterization, the air agency shall notify the EPA by July 1, 2016, whether it has chosen to characterize peak 1-hour SO
(c) Monitoring. For each area identified in the notification submitted pursuant to paragraph (b) of this section as an area for which SO
(1) The air agency shall include relevant information about monitors used to meet the requirements of this paragraph (c) in the air agency's Annual Monitoring Network Plan required by 40 CFR 58.10 due July 1, 2016. The air agency shall consult with the appropriate EPA Regional Office in the development of plans to install, supplement, or maintain an appropriate ambient SO
(2) All existing, new, or relocated ambient monitors intended to meet the requirements of this paragraph (c) must be operational by January 1, 2017 and must be operated continually until approved for shut down by EPA.
(3) Any SO
(d) Modeling. For each area identified in the notification submitted pursuant to paragraph (b) of this section as an area for which SO
(1) The modeling protocol shall include information about the modeling approach to be followed, including but not limited to the model to be used, modeling domain, receptor grid, emissions dataset, meteorological dataset and how the air agency will account for background SO
(2) Modeling analyses shall characterize air quality based on either actual SO
(3) Except as provided by § 51.1204, the air agency shall conduct the modeling analysis for any applicable source identified by the air agency pursuant to paragraph (a) of this section, and for its associated area and any nearby area, as applicable, and submit the modeling analysis to the EPA Regional Office by January 13, 2017.
(e) Federally enforceable requirement to limit SO
(1) Require the applicable sources in the area to emit less than 2,000 tons of SO
(2) Document that the applicable sources in the area have permanently shut down by January 13, 2017.
§ 51.1204 - Enforceable emission limits providing for attainment.
At any time prior to January 13, 2017, the air agency may submit to the EPA federally enforceable SO
§ 51.1205 - Ongoing data requirements.
(a) Monitored areas. For any area where SO
(b) Modeled areas. For any area where modeling of actual SO
(1) The air agency shall include in such report a recommendation regarding whether additional modeling is needed to characterize air quality in any area to determine whether the area meets or does not meet the 2010 SO
(2) An air agency will no longer be subject to the requirements of this paragraph (b) for a particular area if it provides air quality modeling demonstrating that air quality values at all receptors in the analysis are no greater than 50 percent of the 1-hour SO
(c) Any air agency that demonstrates that an area would meet the 2010 SO
(d) If modeling or monitoring information required to be submitted by the air agency to the EPA pursuant to this subpart indicates that an area is not attaining the 2010 SO