NorthStar Bluescope Steel, LLC - Permitting Information

1. Facility Information

NorthStar Bluescope Steel, LLC

2. Location

3. Distance from US/Canada Border

4. Facility Type and Size

Electric Arc Furnace Steel Mill, future total capacity of 4,070,000 tons of steel per year

5. Sources of Emissions

Modification involving expansion to mini mill operations resulting in increased facility production capacity. Expansion will include modification of existing operations and installation of the following new units: Electric Arc Furnace (EAF), twin-station Ladle Metallurgy Facility (LMF), casting operations, and support systems including cooling towers, natural gas fired ladles/tundish heaters & dryers, tunnel furnace, dust handling system, storage silos, limestone receiving, scrap handling/storage, & alloy handling/storage.

6. Type of Fuel

Natural gas is used for the heaters, boilers, tunnel furnace, and preheat of the EAF.

7. Type and Quantity of Emissions

8. Emission Control Technology

1. direct evacuation control (DEC) system for collection of emissions from P905 and P906
2. roof canopy hood system for collection of emissions fugitive to the inside of Meltshop #2 from casting operations (P907-Caster #2) and emissions not captured by the DEC control systems
3.  DEC control systems (P905 and P906) and canopy hood collection system shall be vented to a baghouse achieving the following maximum outlet concentrations:
4. 0.0018 gr/dscf for PE;
5. 0.0024 gr/dscf for PM10/PM2.5

9. Date Permit Application Received

The initial application 4/30/2019 and significantly revised applications were submitted on 5/14/2019 and 7/8/2019.

10. Stack Height and Diameter

11. Permit Agency Contact