52.1125—Emission inventories.
(a)
The Governor's designee for the Commonwealth of Massachusetts submitted the 1990 base year emission inventories for the Springfield nonattainment area and the Massachusetts portion of the Boston-Lawrence-Worcester ozone nonattainment area on November 13, 1992 as a revision to the State Implementation Plan (SIP). Revisions to the inventories were submitted on November 15, 1993, and November 15, 1994, and March 31, 1997. The 1990 base year emission inventory requirement of section 182(a)(1) of the Clean Air Act, as amended in 1990, has been satisfied for these areas.
(b)
The inventories are for the ozone precursors which are volatile organic compounds, nitrogen oxides, and carbon monoxide. The inventories covers point, area, non-road mobile, on-road mobile, and biogenic sources.
(c)
Taken together, the Springfield nonattainment area and the Massachusetts portion of the Boston-Lawrence-Worcester nonattainment area encompass the entire geographic area of the State. Both areas are classified as serious ozone nonattainment areas.