TRI Pollution Prevention Report for DUCOMMUN AEROSTRUCTURES and Tetrachloroethylene

Facility ID: 92301RCHMN8801E

Facility Name and Address:
DUCOMMUN AEROSTRUCTURES
4001 EL MIRAGE RD
EL MIRAGE, CA 92301

Parent Company: DUCOMMUN INC

Industry: Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413)
Chemical: Tetrachloroethylene

Production Related Waste Management for Selected Chemical

lchemid=0000127184

Waste Management Comparison - 2021

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*
2018			Source Reduction: Source Reduction - material substitution
2011	Source Reduction:: W58: Other process modifications	Methods to Identify SR Opportunities: T10: Vendor assistance
2002	Source Reduction:: W42: Substituted raw materials Source Reduction:: W74: Improved application techniques	Methods to Identify SR Opportunities: T10: Vendor assistance Methods to Identify SR Opportunities: T10: Vendor assistance
2001	Source Reduction:: W42: Substituted raw materials Source Reduction:: W74: Improved application techniques	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T10: Vendor assistance Methods to Identify SR Opportunities: T10: Vendor assistance
2000	Source Reduction:: W42: Substituted raw materials Source Reduction:: W74: Improved application techniques	Methods to Identify SR Opportunities: T10: Vendor assistance Methods to Identify SR Opportunities: T10: Vendor assistance
1999	Source Reduction:: W42: Substituted raw materials Source Reduction:: W74: Improved application techniques	Methods to Identify SR Opportunities: T10: Vendor assistance Methods to Identify SR Opportunities: T10: Vendor assistance
1998	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1996	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1995	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1994	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1993	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1992	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W52: Modified equipment, layout, or piping Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T06: Employee recommendation (under a formal company program) Methods to Identify SR Opportunities: T11: Other Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits
1991	Source Reduction:: W13: Improved maintenance scheduling, recordkeeping, or procedures Source Reduction:: W73: Substituted coating materials used	Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s) Methods to Identify SR Opportunities: T03: Materials balance audits Methods to Identify SR Opportunities: T09: Trade association/industry technical assistance program Methods to Identify SR Opportunities: T04: Participative team management Methods to Identify SR Opportunities: T03: Materials balance audits

*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.