Draft Environmental Assessment for Proposed Rule 1407.1 – Control of Toxic Air Contaminant Emissions From Chromium Alloy Melting Operations

Draft Environmental Assessment for Proposed Rule 1407.1 – Control of Toxic Air Contaminant Emissions From Chromium Alloy Melting Operations

PR 1407.1 proposes to reduce hexavalent chromium, arsenic, cadmium, and nickel emissions from melting operations of metals containing greater than 0.5 percent chromium, including, but not limited to, alloy steel, chromium non-ferrous alloys, stainless steel, and superalloys. Chromium alloy melting operations include smelting, die-casting, and other miscellaneous processes where metals are processed in molten form. PR 1407.1 establishes collection efficiency requirements and hexavalent chromium mass emission limits to control point source emissions; housekeeping requirements and building enclosure provisions to limit fugitive emissions; and source testing, material testing, parameter monitoring, and recordkeeping requirements. By focusing on controlling hexavalent chromium emissions from chromium alloy melting operations, concurrent emission reductions of arsenic, cadmium, and nickel are also expected. The Draft EA did not identify any environmental topic areas that would be significantly adversely affected by PR 1407.1. Two facilities affected by PR 1407.1 were identified on lists compiled by the California Department of Toxic Substances Control per Government Code Section 65962.5.

Los Angeles, Orange, Riverside, San Bernardino

Countywide

California Air Resources Board (ARB), California Baldwin Hills Conservancy (BHC), California Coachella Valley Mountains Conservancy (CVMC), California Coastal Commission (CCC), California Department of Conservation (DOC), California Department of Corrections and Rehabilitation (CDCR), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Fish and Wildlife, Marin Region 7 (CDFW), California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Housing and Community Development (HCD), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of State Parks, Division of Boating and Waterways, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 12 (DOT), California Department of Transportation, District 7 (DOT), California Department of Transportation, District 8 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Energy Commission, California Governor's Office of Emergency Services (OES), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Office of Statewide Health Planning and Development (OSHPD), California Public Utilities Commission (CPUC), California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), California Regional Water Quality Control Board, Lahontan Victorville Region 6 (RWQCB), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), California Regional Water Quality Control Board, Santa Ana Region 8 (RWQCB), California Santa Monica Mountains Conservancy (SMMC), California State Lands Commission (SLC), Colorado River Board, Department of Food and Agriculture (CDFA), Office of Historic Preservation, San Gabriel and Lower Los Angeles Rivers and Mountains Conservancy (RMC), Santa Monica Bay Restoration, State Water Resources Control Board, Division of Water Quality

Other