TRI Pollution Prevention Report for NUCOR STEEL DECATUR LLC and Mercury compounds

Facility ID: 35603TRCST4301H

Facility Name and Address:
NUCOR STEEL DECATUR LLC
4301 IVERSON BLVD
TRINITY, AL 35673

Parent Company: NUCOR CORP

Industry: Iron and Steel Mills and Ferroalloy Manufacturing (331110)
Chemical: Mercury compounds

Production Related Waste Management for Selected Chemical

lchemid=N458

Waste Management Comparison - 2019

Pollution Prevention Activities for Selected Chemical

Reporting Year	Section 8.10: Newly Implemented Source Reduction Activity	Section 8.10: Methods to Identify Activity	Section 8.11: Optional Pollution Prevention Information*
2021	Source Reduction:: S06: Other material modifications made	Methods to Identify SR Opportunities: T02: External pollution prevention opportunity audit(s)
2019	Source Reduction:: W58: Other process modifications	Methods to Identify SR Opportunities: T11: Other	W58: Implemented a sludge press in waste water treatment plant to reduce the amount of sludge sent to landfills. The product of the sludge press is mixed into mill scale and sold as a product through a third party operation on site.
2008			Other Environmental Practices - Support and participate in the mercury switch removal program. The success of this program should significantly reduce the amount of mercury melted in EAF furnaces.

*Classifications of Optional Pollution Prevention Information shown in brackets are provided by EPA.

TRI Pollution Prevention Glossary

The Waste Management Hierarchy

The waste management hierarchy established by the Pollution Prevention Act (PPA) guides waste generators toward the best options for managing wastes. The preferred option is to prevent pollution at its source, but for waste that is generated, the preferred management methods are recycling, followed by burning for energy recovery, treatment and, as a last resort, disposing of the waste.

Source Reduction includes activities that eliminate or reduce the generation of chemical waste.
Recycling includes the recovery of a toxic chemical in waste for reuse.
Energy Recovery includes the combustion of toxic chemicals in waste to generate heat or electricity.
Treatment includes the destruction of a toxic chemical in waste.
Disposal or Other Releases includes toxic chemical quantities entering the environment.

The PPA requires facilities to provide the following details about each chemical they report to TRI:

A breakdown of production-related waste managed. This includes all amounts of the chemical released directly to the environment or otherwise managed as waste, other than waste generated by one-time events not associated with normal production processes (e.g., fires or remedial actions).
A production ratio or activity index to provide context for reported toxic chemical quantities. For example, if a chemical is used in the manufacture of refrigerators, the production index would track the number of refrigerators produced and could be used to help gauge how much of the chemical is being released per unit of production.
Any newly implemented source reduction activities, reported using "W-codes" (e.g., "W41: Increased purity of raw materials")

Facilities may also provide optional Pollution Prevention Information describing their source reduction, recycling, or pollution control activities.