The South Coast Air Quality Management District (SCAQMD) held its fourth working group meeting on April 25, 2018 for Proposed Amended Rule (PAR) 1407 and Proposed Rule (PR) 1407.1. PAR 1407, Control of Emissions of Arsenic, Cadmium, and Nickel from Non-ferrous Metal Melting Operations, aims to control metal particulate emissions from non-ferrous metal melting facilities by establishing control standards, containment standards to minimize fugitive emissions from cross-draft, and housekeeping standards to minimize emissions from becoming airborne. PR 1407.1, Control of Emissions of Arsenic, Cadmium, and Nickel from Ferrous Metal Melting Operations, will establish similar requirements for ferrous metal melting facilities.

PAR 1407 seeks to further control emissions from non-ferrous metal melting facilities by adding hexavalent chromium and lead to the list of regulated toxic air contaminants (TACs). As part of the control requirements, there are still discussions on whether a control efficiency standard or mass emission standard would better suit the emission reductions. The SCAQMD may consider establishing a particulate matter (PM) emission limit instead, which would result in proportional reductions of arsenic, cadmium, hexavalent chromium, lead, and nickel.

PR 1407.1's implementation will be executed across two stages to allow the SCAQMD to gain additional knowledge about ferrous metal melting facilities. In the first stage, the SCAQMD will gather data through emission testing and recordkeeping in order to learn more about the ferrous metal melting facilities. In the second stage, after gathering enough information to further evaluate ferrous metal melting operations, the SCAQMD will amend PR 1407.1 to set specific requirements, similar to PAR 1407.

For more information regarding compliance with the proposed rule changes, please contact our Irvine office at (949) 567-9880 or visit the District's website.