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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Table 4 to Subpart TTTTT of Part 63: Table 4 to Subpart TTTTT of Part 63—Continuous Compliance With Emission Limits

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER C—AIR PROGRAMS
  4. PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
  5. Subpart TTTTT—National Emissions Standards for Hazardous Air Pollutants for Primary Magnesium Refining

As required in § 63.9923, you must demonstrate continuous compliance with the emission limits according to the following table:

For . . . You must demonstrate continuous compliance by . . .

1. Each spray dryer stack a. Maintaining emissions of PM10 at or below 100 lbs/hr; and

b. Maintaining emissions of hydrochloric acid at or below 200 lbs/hr; and

c. Conducting subsequent performance tests at least twice during each term of your title V operating permit (at mid-term and renewal).

2. Magnesium chloride storage bins scrubber stack a. Maintaining emissions of hydrochloric acid at or below 47.5 lbs/hr and 0.35 gr/dscf; and

b. Maintaining emissions of PM10 at or below 2.7 lbs/hr and 0.016 gr/dscf; and

c. Conducting subsequent performance tests at least twice during each term of your title V operating permit (at mid-term and renewal).

3. Each melt/reactor system stack a. Maintaining emissions of PM10 at or below 13.1 lbs/hr; and

b. Maintaining emissions of hydrochloric acid at or below 7.2 lbs/hr; and

c. Maintaining emissions of chlorine at or below 100 lbs/hr; and

d. Maintaining emissions of dioxins/furans at or below 36 ng TEQ/dscm corrected to 7% oxygen.

e. Conducting subsequent performance test at least twice during each term of your title V operating permit (at mid-term and renewal).

4. Each launder off-gas system stack a. Maintaining emissions of particulate matter at or below 37.5 lbs/hr; and

b. Maintaining emissions of hydrochloric acid at or below 46.0 lbs/hr; and

c. Maintaining emissions of chlorine at or below 26.0 lbs/hr; and

d. Conducting subsequent performance tests at least twice during each term of your title V operating permit (at mid-term and renewal).

Collected 2026-08-27T02:26:04Z. Source file · JSON

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