| For . . .
| You must demonstrate continuous compliance by . . .
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| 1. Each windbox exhaust stream at an existing sinter plant | a. Maintaining emissions of particulate matter at or below 0.4 lb/ton of product sinter;
b. Conducting subsequent performance tests at the frequencies specified in § 63.7821;
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| | c. Maintaining emissions of mercury at or below 0.000018 lb/ton of product sinter;
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| | d. Maintaining emissions of hydrogen chloride at or below 0.025 lb/ton of product sinter;
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| | e. Maintaining emissions of carbonyl sulfide at or below 0.064 lb/ton of product sinter;
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| | f. Maintaining emissions of D/F TEQs at or below 1.1E-08 lb/ton of product sinter; and
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| | g. Maintaining emissions of polycyclic aromatic hydrocarbons at or below 0.0018 lb/ton of product sinter.
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| 2. Each windbox exhaust stream at a new sinter plant | a. Maintaining emissions of particulate matter at or below 0.3 lb/ton of product sinter;
b. Conducting subsequent performance tests at the frequencies specified in § 63.7821;
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| | c. Maintaining emissions of mercury at or below 0.000012 lb/ton of product sinter;
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| | d. Maintaining emissions of hydrogen chloride at or below 0.0012 lb/ton of product sinter;
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| | e. Maintaining emissions of carbonyl sulfide at or below 0.030 lb/ton of product sinter;
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| | f. Maintaining emissions of D/F TEQs at or below 1.1E-08 lb/ton of product sinter; and
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| | g. Maintaining emissions of polycyclic aromatic hydrocarbons at or below 0.0015 lb/ton of product sinter.
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| 3. Each discharge end at an existing sinter plant | a. Maintaining emissions of particulate matter from one or more control devices at or below 0.02 gr/dscf; and
b. Maintaining the opacity of secondary emissions that exit any opening in the building or structure housing the discharge end at or below 20 percent (6-minute average); and
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 4. Each discharge end at a new sinter plant | a. Maintaining emissions of particulate matter from one or more control devices at or below 0.01 gr/dscf; and
b. Maintaining the opacity of secondary emissions that exit any opening in the building or structure housing the discharge end at or below 10 percent (6-minute average); and
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 5. Each sinter cooler at an existing sinter plant | a. Maintaining the opacity of emissions that exit any sinter cooler at or below 10 percent (6-minute average); and
b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 6. Each sinter cooler at a new sinter plant | a. Maintaining emissions of particulate matter at or below 0.1 gr/dscf; and
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| | b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 7. Each casthouse at an existing blast furnace | a. Maintaining emissions of particulate matter from a control device at or below 0.01 gr/dscf;
b. Maintaining the opacity of secondary emissions that exit all openings in the casthouse or structure housing the casthouse at or below 20 percent (6-minute average);
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821;
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| | d. Maintaining emissions of hydrogen chloride at or below 0.0056 lb/ton of iron;
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| | e. Maintaining emissions of total hydrocarbons at or below 0.48 lb/ton of iron; and
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| | f. Maintaining unplanned bleeder valve openings at or below 4 events per year for large blast furnaces or 15 events per year for small blast furnaces.
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| 8. Each casthouse at a new blast furnace | a. Maintaining emissions of particulate matter from a control device at or below 0.003 gr/dscf;
b. Maintaining the opacity of secondary emissions that exit all openings in the casthouse or structure housing the casthouse at or below 15 percent (6-minute average);
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821;
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| | d. Maintaining emissions of hydrogen chloride at or below 0.00059 lb/ton of iron;
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| | e. Maintaining emissions of total hydrocarbons at or below 0.035 lb/ton of iron; and
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| | f. Maintaining unplanned bleeder valve openings at zero events per year.
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| 9. Each BOPF at a new or existing BOPF shop | a. Maintaining emissions of particulate matter from the primary control system for a BOPF with a closed hood system at or below 0.03 gr/dscf;
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| | b. Maintaining emissions of particulate matter from the primary control system for a BOPF with an open hood system at or below 0.02 gr/dscf for an existing BOPF shop or 0.01 gr/dscf for a new BOPF shop;
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| | c. Maintaining emissions of particulate matter from a control device applied solely to secondary emissions from a BOPF at or below 0.01 gr/dscf for an existing BOPF shop or 0.0052 gr/dscf for a new BOPF shop;
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| | d. Conducting subsequent performance tests at the frequencies specified in § 63.7821;
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| | e. Maintaining emissions of hydrogen chloride from a primary emission control system for a BOPF at or below 0.058 lb/ton of steel for existing sources and 2.8E-04 lb/ton steel for new sources;
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| | f. Maintaining emissions of THC from a primary emission control system for a BOPF at or below 0.04 lb/ton of steel for existing sources and 0.0017 lb/ton of steel for new sources; and
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| | g. Maintaining emissions of D/F TEQs from a primary emission control system for a BOPF at or below 9.2E-10 lb/ton of steel.
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| 10. Each hot metal transfer, skimming, and desulfurization operation at a new or existing BOPF shop | a. Maintaining emissions of particulate matter from a control device at or below 0.01 gr/dscf at an existing BOPF or 0.003 gr/dscf for a new BOPF; and
b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 11. Each ladle metallurgy operation at a new or existing BOPF shop | a. Maintaining emissions of particulate matter from a control device at or below 0.01 gr/dscf at an existing BOPF shop or 0.004 gr/dscf for a new BOPF shop; and
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| | b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 12. Each existing BOPF shop | a. Maintaining the opacity of secondary emissions that exit any opening in the BOPF shop or other building housing the BOPF shop or shop operation at or below 20 percent (3-minute average); and
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| | b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 13. Each new BOPF shop | a. Maintaining the opacity (for any set of 6-minute averages) of secondary emissions that exit any opening in the BOPF shop or other building housing a bottom-blown BOPF or shop operation at or below 10 percent, except that one 6-minute period greater than 10 percent but no more than 20 percent may occur once per steel production cycle;
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| | b. Maintaining the opacity (for any set of 3-minute averages) of secondary emissions that exit any opening in the BOPF shop or other building housing a top-blown BOPF or shop operation at or below 10 percent, except that one 3-minute period greater than 10 percent but less than 20 percent may occur once per steel production cycle; and
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 14. Each BOPF Group at an existing BOPF shop | a. Maintaining emissions of mercury from the collection of BOPF Group control devices at or below 0.00026 lb/ton steel scrap input to the BOPF; and
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| | b. If demonstrating compliance through performance testing, conducting subsequent performance tests at the frequencies specified in § 63.7821; and
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| | c. If demonstrating compliance through § 63.7791(c), (d), or (e), maintaining records pursuant to § 63.7842(e).
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| 15. Each BOPF Group at a new BOPF shop | a. Maintaining emissions of mercury from the collection of BOPF Group control devices at or below 0.000081 lb/ton steel scrap input to the BOPF; and
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| | b. If demonstrating compliance through performance testing, conducting subsequent performance tests at the frequencies specified in § 63.7821; and
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| | c. If demonstrating compliance through § 63.7791(c), (d), or (e), maintaining records pursuant to § 63.7842(e).
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| 16. Each planned bleeder valve opening at a new or existing blast furnace | a. Maintaining the opacity of emissions that exit any bleeder valve as a result of a planned opening at or below 8 percent (6-minute average); and
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| | b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 17. Each slag processing, handling and storage operation for a new or existing blast furnace or BOPF | a. Maintaining the opacity of emissions that exit any slag processing, handling, or storage operation at or below 10 percent (6-minute average); and
b. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 18. Each existing blast furnace stove | a. Maintaining emissions of HCl at or below 0.0012 lb/MMBtu;
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| | b. Maintaining emissions of THC at or below 0.12 lb/MMBtu; and
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821.
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| 19. Each new blast furnace stove | a. Maintaining emissions of HCl at or below 4.2e-4 lb/MMBtu;
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| | b. Maintaining emissions of THC at or below 0.0054 lb/MMBtu; and
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| | c. Conducting subsequent performance tests at the frequencies specified in § 63.7821. |