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Table 2 to Subpart AA of Part 63—New Source Emission Limits <sup>a b</sup>

New Source Emission Limits <sup>a b</sup>

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  11. Appendix Table 2 to Subpart AA of Part 63
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Displayed edition2026-04-27
Last updated2026-04-27

Table 2 to Subpart AA of Part 63—New Source Emission Limits a b

For the following new sources . . .You must meet the emissions limits for the specified pollutant . . .
Total fluoridesTotal particulateMercury
Wet-Process Phosphoric Acid Line0.0135 lb/ton of equivalent P2 O5 feed
Superphosphoric Acid Process Line c0.00870 lb/ton of equivalent P2 O5 feed
Phosphate Rock Dryer0.060 lb/ton of phosphate rock feed
Phosphate Rock Calciner9.0E-04 lb/ton of rock feed0.092 g/dscm0.014 mg/dscm corrected to 3 percent oxygen
a The new source compliance dates are based on date of construction or reconstruction as specified in § 63.602(a).
b During periods of startup and shutdown, for emission limits stated in terms of pounds of pollutant per ton of feed, you are subject to the work practice standards specified in § 63.602(f).
c Beginning on August 19, 2018, you must include oxidation reactors in superphosphoric acid process lines when determining compliance with the total fluorides limit.

[80 FR 50436, Aug. 19, 2015, as amended at 82 FR 45199, Sept. 28, 2017]