GroundRules
40 CFR Table 1 to Subpart RRRRR of Part 63: Table 1 to Subpart RRRRR of Part 63—Particulate Matter Emission Limits
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER C—AIR PROGRAMS
- PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
- Subpart RRRRR—National Emission Standards for Hazardous Air Pollutants: Taconite Iron Ore Processing
As required in § 63.9590(a), you must comply with each applicable particulate matter emission limit in the following table:
If your affected source is . . . and the affected source is categorized as . . . then you must comply with the flow-weighted mean concentration of particulate matter discharged to the atmosphere from the affected source, as determined using the procedures in § 63.9621(b), such that you must not exceed . . .
1. Ore crushing and handling emission units Existing 0.008 grains per dry standard cubic foot (gr/dscf).
New 0.005 gr/dscf.
2. Straight grate indurating furnace processing magnetite Existing New 0.01 gr/dscf. 0.006 gr/dscf.
3. Grate kiln indurating furnace processing magnetite Existing New 0.01 gr/dscf. 0.006 gr/dscf.
4. Grate kiln indurating furnace processing hematite Existing New 0.03 gr/dscf. 0.018 gr/dscf.
5. Finished pellet handling emission units Existing New 0.008 gr/dscf. 0.005 gr/dscf.
6. Ore dryer Existing New 0.052 gr/dscf. 0.025 gr/dscf.
Collected 2026-08-27T02:26:04Z. Source file · JSON