StacksVerified U.S. regulatory reference

40 CFR Part 63, Table 1

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov

As required in § 63.9890(a), you must comply with each applicable emission limit in the following table:

For . . .You must comply with each of the following . . .
1. Each spray dryer stacka. You must not cause to be discharged to the atmosphere any gases that contain particulate matter in excess of 100 lbs/hr; and
b. You must not cause to be discharged to the atmosphere any gases that contain hydrochloric acid in excess of 200 lbs/hr.
2. Each magnesium chloride storage bins scrubber stacka. You must not cause to be discharged to the atmosphere any gases that contain hydrochloric acid in excess of 47.5 lbs/hr and 0.35 gr/dscf; and
b. You must not cause to be discharged to the atmosphere any gases that contain PM10 in excess of 2.7 lbs/hr and 0.016 gr/dscf.
3. Each melt/reactor system stacka. You must not cause to be discharged to the atmosphere any gases that contain PM10 in excess of 13.1 lbs/hr; and
b. You must not cause to be discharged to the atmosphere any gases that contain hydrochloric acid in excess of 7.2 lbs/hr; and
c. You must not cause to be discharged to the atmosphere any gases that contain chlorine in excess of 100 lbs/hr; and
d. You must not cause to be discharged to the atmosphere any gases that contain 36 ng TEQ/dscm corrected to 7% oxygen.
4. Each launder off-gas system stacka. You must not cause to be discharged to the atmosphere any gases that contain particulate matter in excess of 37.5 lbs/hr; and
b. You must not cause to be discharged to the atmosphere any gases that contain hydrochloric acid in excess of 46.0 lbs/hr; and
c. You must not cause to be discharged to the atmosphere any gases that contain chlorine in excess of 26.0 lbs/hr.