California Code of Regulations › Title 17 - Public Health › Division 3 - Air Resources › Chapter 1 - Air Resources Board › Subchapter 7.5 - Airborne Toxic Control Measures › Section 93107 - Airborne Toxic Control Measure for Emissions of Toxic Metals from Non-Ferrous Metal Melting

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a)
				  Definitions. For the purposes of this section, the following definitions shall
				  apply:
(1) "Aluminum and aluminum-based
				  alloys" means any metal that is at least 80% aluminum by weight.
(2) "ARB Test Method 5" means the test method
				  specified in Title 17, California Code of Regulations, section
				  94105.
(3) "Clean Aluminum Scrap" means scrap that
				  is composed solely of aluminum or aluminum alloys (including anodized aluminum)
				  and that is free of paints, coatings, rubber, or plastics.
(4) "Copper or copper-based alloy" means any
				  metal that is more than 50 percent copper by weight, including but not limited
				  to brass and bronze.
(5) "District"
				  means the air quality management district or air pollution control district
				  with jurisdiction over the facility.
(6) "Dust forming material" means any
				  material containing more than 15 percent by weight of particulate matter less
				  than 0.84 millimeter (mm) equivalent diameter as determined by ASTM C136-84a
				  "Standard Method for Sieve Analysis of Fine and Coarse Aggregates" using a
				  number 20 U.S. Bureau of Standards sieve with 0.84-mm square openings or an
				  alternate method deemed acceptable by the district Air Pollution Control
				  Officer or Executive Officer.
(7)
				  "Emission collection system" means equipment which is installed for the purpose
				  of directing, taking in, confining, and conveying an air contaminant and which
				  conforms to specifications for design and operation given in
Industrial
				  Ventilation, Manual of Recommended Practices
, 20th edition, 1988,
				  published by the American Conference of Government and Industrial Hygienists,
				  which is incorporated by reference herein.
(8) "Emission point" means any location where
				  molten metal is or can be exposed to air, including but not limited to,
				  furnaces, crucibles, refining kettles, ladles, tap holes, pouring spouts, and
				  slag channels. A mold or die in which metal is cooling is not considered an
				  emission point.
(9) "Enclosed
				  storage area" means nay space used to contain materials that has a wall or
				  partition on at least three sides or three-quarters of its circumference and
				  that screens the material stored therein to prevent emissions of the material
				  to the air.
(10) "Facility" means
				  any real or personal property being used for metal melting activities, which is
				  located on one or more contiguous or adjacent parcels of property in actual
				  contact or separated only by a public roadway or other public right-of-way, and
				  owned or operated by the same person or persons, corporation, government
				  agency, public district, public officer, association, joint venture,
				  partnership, or any combination of such entities.
(11) "Fugitive emission control" means any
				  equipment, activity, or process carried out to reduce emissions resulting
				  either from the storage or handling of dust forming materials or material
				  collected by a particulate matter control system or the removal of particulate
				  matter from metal melting or pouring that has settled on the ground or other
				  surfaces, or that has escaped from a properly designed and operated emission
				  collection system.
(12) "Good
				  Operating Practice" means specific activities necessary to maintain the
				  original collection and control efficiencies of the air pollution control
				  equipment as designed. These activities include but are not limited to
				  verifying operating specifications such as cleaning cycles, air flow, and
				  velocity; and inspecting equipment such as duct work, blowers, and components
				  of the control equipment through a general maintenance and inspection
				  program.
(13) "Hard Lead" means any
				  alloy containing at least 90 percent lead and more than 0.001 percent arsenic
				  by weight or 0.001 percent cadmium weight.
(14) "Molten metal" means metal or metal
				  alloy in a liquid state, in which a cohesive mass of metal will flow under
				  atmospheric pressure and take the shape of a container in which it is
				  placed.
(15) "Metal melting
				  furnace" means any apparatus in which metal in a container is brought to a
				  liquid state, including but not limited to reverberatory, cupola, induction,
				  direct arc furnaces, sweat furnaces, and refining kettles. "Metal melting
				  furnace" does not include any apparatus in which the metal is heated but does
				  not reach a molten state such as a sintering furnace or an annealing
				  furnace.
(16) "New sand" means any
				  sand not exposed to the casting process.
(17) "Non-ferrous metal" means lead, copper,
				  zinc, cadmium, arsenic, aluminum, and their alloys.
(18) "Particulate matter" or "PM" means any
				  solid material except uncombined water, which exists in a finely divided form
				  at standard conditions of temperature and pressure (293 K and 760 mm
				  mercury).
(19) "Particulate matter
				  control system" means any device or series of devices designed and operated in
				  a manner intended to remove fine particulate matter (< 10 um) from an air or
				  gas stream.
(20) "Person" shall
				  have the same meaning as defined in Health and Safety Code section
				  39047.
(21) "Process emission control" means any
				  equipment installed and operated to control emissions of toxic metals from any
				  emission point as defined in subsection (a)(8).
(22) "Pure Lead" means any alloy that is at
				  least 90 percent lead and contains no more than 0.001 percent cadmium by weight
				  and 0.001 percent arsenic by weight.
(23) "Ringlemann Chart" means the Ringlemann
				  Chart published in the United States Review of Mine Information Circular No.
				  1C8333, (May 1967), as specified in Health and Safety Code section
				  41701(b).
(24) "Scrap" means any metal or
				  metal-containing material that has been discarded or removed from the use for
				  which it was produced or manufactured and which is intended for reprocessing.
				  "Scrap" does not include sprues, gates, risers, foundry returns, and similar
				  material intended for remelting that has been generated at the facility as a
				  consequence of casting or forming processes but has not been coated or surfaced
				  with any material containing cadmium, arsenic, or nickel.
(25) "Solder" means any metal in which the
				  sum of the lead and the tin is greater than 50 percent by weight and which is
				  used for the purpose of joining two metals or of joining a metal to any other
				  material.
(26) "Type Metal" means
				  any lead-based alloy used for linotype machines.