15A NCAC 02Q .0706. MODIFICATIONS

(a)  The owner or operator shall comply with Paragraphs (b) and (c) of this Rule for modification of any facility required to have a permit because of applicability of a Section in 15A NCAC 02D, other than 15A NCAC 02D .1100. This Paragraph does not apply to facilities whose emissions of toxic air pollutants result only from insignificant activities, as defined in Rule .0103(20) of this Subchapter, or sources exempted under Rule .0102 of this Subchapter.

(b)  The owner or operator of the facility shall submit a permit application to comply with 15A NCAC 02D .1100 if the modification results in:

(1)           a net increase in emissions or ambient concentration of any toxic air pollutant that the facility was emitting before the modification; or

(2)           emissions of any toxic air pollutant that the facility was not emitting before the modification if such emissions exceed the levels contained in Rule .0711 of this Section.

(c)  The permit application filed pursuant to this Rule shall include an evaluation for all toxic air pollutants covered under 15A NCAC 02D .1104 for which there is:

(1)           a net increase in emissions of any toxic air pollutant that the facility was emitting before the modification; and

(2)           emission of any toxic air pollutant that the facility was not emitting before the modification if such emissions exceed the levels contained in Rule .0711 of this Section.

All sources at the facility, excluding sources exempt from evaluation in Rule .0702 of this Section, emitting these toxic air pollutants shall be included in the evaluation.

(d)  If a source is included in an air toxic evaluation, but is not the source that is being added or modified at the facility, and if the emissions from this source must be reduced in order for the facility to comply with the rules in this Section and 15A NCAC 02D .1100, then the emissions from this source shall be reduced by the time that the new or modified source begins operating such that the facility shall be in compliance with the rules in this Section and 15A NCAC 02D .1100.

 

History Note:        Authority G.S. 143-215.3(a)(1); 143-215.107; 143-215.108; 143B-282;

Rule originally codified as part of 15A NCAC 2H .0610;

Eff. July 1, 1998;

Amended Eff. May 1, 2014; July 10, 2010; December 1, 2005; April 1, 2005.