Under the Pollution Prevention Act of 1990 (PPA), TRI collects information to track industry progress in reducing waste generation and moving towards safer waste management alternatives. Measures that facilities have taken to prevent pollution and reduce the amount of toxic chemicals entering the environment are shown in the table below. Although factors other than these reported practices contribute to year-to-year changes in releases, results are sorted by largest reduction in order to facilitate identification of pollution prevention successes. View the to learn about this report's features.

List of Facilities in TRI submitting Pollution Prevention Information for Selected Criteria:

Year: between 2016 and 2024

P2 Text Filters: Only show information about source reduction activities Show information about source reduction AND other environmental practices Exclude facilities that reported activity codes but no text descriptions Show information on barriers to implementing source reduction activities Show ALL information reported in pollution prevention data fields Year-to-Year Comparison: Total Waste Total Release [displayed currently] Air Release Land Release Water Release

TRI Facility ID	Facility Name	Address	Chemical Name	Industry	Year	Prior Year Release *	Current Year Release *	Percent Change	Pollution Prevention Information (Activity Codes/Text/[Reduction])	P2 Report	P2 Report URL
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Polycyclic aromatic compounds	336611: Ship Building and Repairing	2022	.02	.01	-36.84	Source Reduction: S24: Modified or updated equipment or layout - Installed new boiler and have optimized operation process. 87% reduction in natural gas usage between 2021 and 2022. Source Reduction: Installed new boiler and have optimized operation process. 87% reduction in natural gas usage between 2021 and 2022.		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=N590&ReportingYear=2022&DocCtrlNum=1322220963918&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Manganese	336611: Ship Building and Repairing	2023	24.60	21.87	-11.1	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007439965&ReportingYear=2023&DocCtrlNum=1323221999550&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Chromium	336611: Ship Building and Repairing	2023	6.39	5.70	-10.81	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440473&ReportingYear=2023&DocCtrlNum=1323221999535&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Nickel	336611: Ship Building and Repairing	2023	3.58	3.21	-10.37	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440020&ReportingYear=2023&DocCtrlNum=1323221999562&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Copper	336611: Ship Building and Repairing	2023	8.95	8.05	-10.05	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440508&ReportingYear=2023&DocCtrlNum=1323221999547&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Copper	336611: Ship Building and Repairing	2022	9.45	8.95	-5.28	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440508&ReportingYear=2022&DocCtrlNum=1322220963781&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Nickel	336611: Ship Building and Repairing	2022	3.77	3.58	-4.99	Other Environmental Practices: Dust collection systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440020&ReportingYear=2022&DocCtrlNum=1322220963805&Opt=0
04011BTHRNROUTE	BATH IRON WORKS-STRUCTURAL FABRICATION FACILITY (FORMERLY HA (GENERAL DYNAMICS CORP)	375 BATH RD, BRUNSWICK, ME 04011	Chromium	336611: Ship Building and Repairing	2022	6.72	6.39	-4.91	Other Environmental Practices: Dust Collection Systems		//enviro.epa.gov/enviro/P2_EF_Query.p2_report?FacilityId=04011BTHRNROUTE&ChemicalId=0007440473&ReportingYear=2022&DocCtrlNum=1322220963779&Opt=0