2024-21895. Determination of Attainment by the Attainment Date; Michigan; St. Clair 2010 Sulfur Dioxide Nonattainment Area

Table 1—St. Clair, MI Nonattainment Area Annual Emissions

SO 2 emissions	Power plant	Total tons/year
Year
2017	Belle River/St. Clair	36,918
2018	Belle River/St. Clair	41,381
2019	Belle River/St. Clair	30,751
2020	Belle River/St. Clair	21,755

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Table 2—St. Clair, MI Nonattainment Area 2010 SO ₂ NAAQS Standard 3-Year Design Values

Power plant monitors		3-Year design values (ppb)
Site ID		2017-2019	2018-2020
26-147-0913	Belle River-Mills	45	40
26-147-0914	St. Clair-Remer	54	45