SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT Preliminary Draft Staff Report Proposed Amended Rule 1407 – Control of Emissions of Arsenic, Cadmium, and Nickel from Non-Chromium Metal Melting Operations June 2019 Deputy Executive Officer Planning, Rule Development and Area Sources Philip M. Fine, Ph.D. Assistant Deputy Executive Officer Planning, Rule Development and Area Sources Susan Nakamura Planning and Rules Manager Planning, Rule Development and Area Sources Michael Morris Author: Michael Morris – Planning and Rules Manager Contributors: John Anderson – Air Quality Analysis and Compliance Supervisor Jason Aspell – Enforcement Manager Yadira DeHaro-Hammock – Senior Air Quality Chemist Luke Eisenhardt – Air Quality Specialist Kennard Ellis – Air Quality Specialist (retired) Mike Garibay – Supervising Air Quality Engineer Marco Polo – Air Quality Engineer II Barbara Radlein – Program Supervisor Amanda Sanders – Supervising Air Quality Inspector Areio Soltani – Supervising Air Quality Inspector Paul Stroik – Air Quality Specialist Charles Tupac – Supervising Air Quality Engineer Uyen-Uyen Vo – Program Supervisor Bill Welch – Senior Air Quality Engineer Lisa Wong – Assistant Air Quality Specialist Reviewed by: Barbara Baird – Chief Deputy Counsel Stacey Pruitt – Senior Deputy District Counsel William Wong – Principal Deputy District Counsel SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT GOVERNING BOARD Chairman: DR. WILLIAM A. BURKE Speaker of the Assembly Appointee Vice Chairman: BEN BENOIT Council Member, Wildomar Cities of Riverside County MEMBERS: LISA BARTLETT Supervisor, Fifth District County of Orange JOE BUSCAINO Council Member, 15th District City of Los Angeles Representative MICHAEL A. CACCIOTTI Council Member, South Pasadena Cities of Los Angeles County/Eastern Region VANESSA DELGADO Senate Rules Committee Appointee JANICE HAHN Supervisor, Fourth District County of Los Angeles LARRY MCCALLON Mayor Pro Tem, Highland Cities of San Bernardino County JUDITH MITCHELL Mayor, Rolling Hills Estates Cities of Los Angeles County/Western Region V. MANUEL PEREZ Supervisor, Fourth District County of Riverside DWIGHT ROBINSON Council Member, Lake Forest Cities of Orange County JANICE RUTHERFORD Supervisor, Second District County of San Bernardino VACANT Governor’s Appointee EXECUTIVE OFFICER: WAYNE NASTRI Preliminary Draft Staff Report TABLE OF CONTENTS CHAPTER 1: BACKGROUND INTRODUCTION ......................................................................................................................... 1-1 REGULATORY HISTORY ............................................................................................................ 1-1 HEALTH EFFECTS OF ARSENIC, CADMIUM, AND NICKEL .......................................................... 1-2 NEED FOR PROPOSED AMENDED RULE 1407 ............................................................................ 1-3 AFFECTED INDUSTRIES ............................................................................................................. 1-3 PUBLIC PROCESS ....................................................................................................................... 1-5 CHAPTER 2: SUMMARY OF PROPOSED AMENDED RULE 1407 INTRODUCTION ......................................................................................................................... 2-1 PROPOSED AMENDED RULE 1407 ............................................................................................. 2-1 Purpose (Subdivision (a)) .................................................................................................... 2-1 Applicability (Subdivision (b)) ............................................................................................. 2-1 Definitions (Subdivision (c)) ................................................................................................ 2-2 Emission Control Requirements (Subdivision (d)) .............................................................. 2-3 Housekeeping Requirements (Subdivision (e)) .................................................................... 2-5 Building Enclosures (Subdivision (f)) .................................................................................. 2-6 Recordkeeping (Subdivision (g)).......................................................................................... 2-8 Source Testing (Subdivision (h)) .......................................................................................... 2-9 Applicable Material Testing Methods (Subdivision (i))..................................................... 2-10 Emission Control Device Monitoring (Subdivision (j)) ..................................................... 2-11 Exemptions (Subdivision (k)) ............................................................................................. 2-12 Digestion of Metal Aluminum Sample for Determining Arsenic (Attachment A) .............. 2-13 Smoke Test to Demonstrate Capture Efficiency for Ventilation Systems of an Emission Control Device Pursuant to Paragraph (j)(5) (Attachment B) .......................................... 2-14 CHAPTER 3: IMPACT ASSESSMENT INTRODUCTION ......................................................................................................................... 3-1 AFFECTED FACILITIES ............................................................................................................... 3-1 COMPLIANCE COSTS ................................................................................................................. 3-1 EMISSIONS IMPACT ................................................................................................................... 3-4 SOCIOECNOMIC ASSESSMENT ................................................................................................... 3-4 CALIFORNIA ENVIRONMENTAL QUALITY ACT (CEQA) .............................................................. 3-5 Proposed Amended Rule 1407 TOC-i June 2019 Preliminary Draft Staff Report DRAFT FINDINGS UNDER CALIFORNIA HEALTH AND SAFETY CODE SECTION 40727 ............... 3-5 Requirements to Make Findings .......................................................................................... 3-5 Necessity .............................................................................................................................. 3-5 Authority .............................................................................................................................. 3-5 Clarity .................................................................................................................................. 3-5 Consistency .......................................................................................................................... 3-5 Non-Duplication .................................................................................................................. 3-5 Reference.............................................................................................................................. 3-6 COMPARATIVE ANALYSIS ......................................................................................................... 3-6 Proposed Amended Rule 1407 TOC-ii June 2019 CHAPTER 1: BACKGROUND INTRODUCTION REGULATORY HISTORY HEALTH EFFECTS OF ARSENIC, CADMIUM, AND NICKEL NEED FOR PROPOSED AMENDED RULE 1407 AFFECTED INDUSTRIES PUBLIC PROCESS Chapter 1: Background Preliminary Draft Staff Report INTRODUCTION Proposed Amended Rule 1407 – Control of Emissions of Arsenic, Cadmium and Nickel from Non- Chromium Metal Melting Operations (PAR 1407) establishes requirements to reduce arsenic, cadmium, and nickel emissions from metal melting operations. PAR 1407 applies to facilities that are melting metals that contain no more than 0.5% chromium content, including, but not limited to aluminum, brass, bronze, carbon steel, and zinc. Potential metal melting operations include smelting, tinning, galvanizing, and other miscellaneous processes where metals are processed in molten form, since these operations have the potential to emit such metal emissions in the form of toxic air contaminants and particulate matter. PAR 1407 establishes control efficiency requirements, mass emission limits, and emission control device monitoring requirements to control point source emissions, housekeeping and building enclosure provisions to limit fugitive emissions, and source testing and recordkeeping requirements. In March 2017, the South Coast AQMD adopted the Final 2016 Air Quality Management Plan (2016 AQMP)1. Control of Toxic Emissions from Metal Melting Facilities (TXM-06) is a control measure in the 2016 AQMP that seeks to further reduce arsenic, cadmium, nickel, other toxic metals, and particulates from foundry operations. This stationary source air toxic control strategy is not required to attain state or federal ambient air quality standards, and thus is not a commitment under the State Implementation Plan. REGULATORY HISTORY In 1983, the California Legislature established Assembly Bill 1807, a two-step process to identify toxic air contaminants and to propose air toxic control measures (ATCMs) for the identified toxic air contaminants from specific sources. In January 1993, California Air Resources Board adopted the non-ferrous metal melting ATCM2 and established January 6, 1994 as the effective date of the ATCM. The South Coast AQMD was given a May 9, 1994 deadline to implement and enforce the ATCM or to propose regulations implementing the ATCM. On July 8, 1994, the South Coast AQMD adopted Rule