A. Applicability. The provisions of this section only apply to stationary sources of VOC or oxides of nitrogen in ozone nonattainment areas classified as serious or severe. Unless otherwise provided in this section, all requirements of Chapters 17.11, 17.12, and 17.13 and Articles III and IV of this chapter apply.
B. "Significant" means, for the purposes of a major modification of any stationary source of VOC or oxides of nitrogen, any physical changes or changes in the method of operations that results in net increases in emissions of either pollutant by more than twenty-five tons when aggregated with all other creditable increases in emissions from the source over the prior five consecutive calendar years, including the calendar year in which the increase is proposed. Emissions decreases shall only be creditable if they are simultaneous with the proposed modification.
C. For any stationary source that emits or has the potential to emit less than one hundred tons VOC or oxides of nitrogen per year, a significant increase in VOC or oxides of nitrogen from any discrete emitting unit, operation, or other pollutant emitting activity shall constitute a major modification unless the increase in emissions is offset from other units, operations or activities at the source at a ratio of 1.3 to one for the increase in VOC or oxides of nitrogen emissions from such unit, operation or activity within the facility only. If such a change qualifies as a major modification under this section, BACT shall be substituted for LAER. Net emissions increases in VOC or oxides of nitrogen above the internal offset described herein shall be subject to the offset requirements in subsections E and F of this section.
D. For any stationary source that emits or has the potential to emit one hundred tons or more of VOC or oxides of nitrogen per year, any significant increase in VOC or oxides of nitrogen emissions from any discrete emitting unit, operation, or other pollutant emitting activity shall constitute a major modification. If the increase in emissions from such modification is offset from other units, operations or activities at the source at a ratio of 1.3 to one for the increase in VOC or oxides of nitrogen emissions from such unit, operation or activity, BACT shall be substituted for LAER. Net emissions increases in VOC or oxides of nitrogen above the internal offset described herein shall be subject to the offset requirements in subsections E and F of this section.
E. For any new major source or major modification which is classified as such because of emissions or potential to emit VOC or oxides of nitrogen in an ozone nonattainment area classified as serious, the increase in emissions of these pollutants from such source or modification shall be offset at a ratio of 1.2 to one. Such offset shall be made in accordance with the provisions of Section 17.16.570.
F. For any new major source or major modification which is classified as such because of emissions or potential to emit VOC or oxides of nitrogen in an ozone nonattainment area classified as severe, the increase in emissions of these pollutants from such source or modification shall be offset at a ratio of 1.3 to one. If the SIP requires all existing major sources of these pollutants in the nonattainment area to apply BACT, then the offset ratio shall be 1.2 to one. All such offsets shall be made in accordance with the provisions of Section 17.16.570.
(Ord. 2017-20 § 3 (part), 2017: Ord. 1993-128 § 4 (part), 1993)