N.M. Admin. Code § 20.2.19.7

Current through Register Vol. 35, No. 21, November 5, 2024

Section 20.2.19.7 - DEFINITIONS

In addition to the terms defined in 20.2.2 NMAC (Definitions), as used in this Part:

A. "Best engineering practices" means, with respect to control of fugitive particulate matter emissions, the installation and use of hoods, enclosures, ducts, covers, sprays, or other equipment or measures on potash, salt or sodium sulfate processing equipment as necessary to prevent particulate matter from becoming airborne.

B. "Compactor operations" means compaction of fine muriate of potash materials and recrushing, screening or other size classification, and drying of the compacted materials.

C. "Commenced" means that an owner or operator has undertaken a continuous program of construction or that an owner or operator has entered into a binding contractual obligation to undertake and complete within a reasonable time a continuous program of construction.

D. "Existing potash, salt or sodium sulfate processing equipment" means process equipment in which the fabrication, erection or installation was commenced prior to January 1, 1979, and includes all crushers, grinders, screens, and other size-classification units, compactors, granulators, evaporators, dryers, conveyors, storage piles (including ore, product or other storage piles), facilities for bagging and loading, and any other process units with particulate matter emissions to the atmosphere.

E. "Fugitive particulate matter emissions" means particulate matter emissions which escape from potash, salt or sodium sulfate processing equipment due to leakage, materials handling, transfer and storage or other causes without being ducted through a stack.

F. "Good engineering practice" means, with respect to stack heights, the height necessary to insure that emissions from the stack do not result in excessive concentrations of any pollutant in the immediate vicinity of the source as a result of atmospheric downwash, eddies and wakes which may be created by the source itself, nearby structures or nearby terrain obstacles. Such height shall not exceed:

(1) a thirty meters for stacks not influenced by the source itself, nearby structures or terrain; or

(2) for stacks that are influenced by nearby structures or terrain, the height determined by use of the equation Hg = H + 1.5 L, where: Hg = good engineering practice stack heights; H = the height of the source or nearby structure; and L = the lesser dimension (height or width) of the source or nearby structure.

G. "Modification" means a physical change or change in the manner of operation which increases the amount of any air contaminant emitted by the potash, salt or sodium sulfate processing equipment or which results in the emission of any air contaminant not previously emitted.

H. "New potash, salt or sodium sulfate processing equipment" means process equipment or process unit thereof, the fabrication, erection, installation or modification of which is commenced on or after January 1, 1979, and includes all crushers, grinders, screens and other size-classification units, compactors, granulators, evaporators, dryers, conveyors, storage piles (including ore, product or other storage piles) facilities for bagging and loading, and any other process units with particulate matter emissions to the atmosphere. New potash, salt or sodium sulfate processing equipment does not include process equipment installed solely to replace equivalent equipment installed prior to January 1, 1979, if the replacement equipment will not result in a significant increase in capacity.

I. "Part" means an air quality control regulation under Title 20, Chapter 2 of the New Mexico Administrative Code, unless otherwise noted; as adopted or amended by the Board.

J. "Potash" means muriate potash (the chemical compound potassium chloride, KCl), sulfate of potash (the chemical compound sulfate K2SO4), and langbeinite (the chemical compound potassium magnesium sulfate, K2SO4.2MgSO4), or any other potassium, magnesium or mixed-potassium salts, and includes ores, intermediates, products and reaction products of such compounds.

K. "Salt" means the chemical compound sodium chloride (NaCl) and includes ores, intermediates, products and reaction products of this compound.

L. "Sodium sulfate" means the chemical compound sodium sulfate (Na2SO4) and includes ores, intermediates, products and reaction products of this compound.

M. "Standard conditions" means temperature of 68 degrees Fahrenheit and pressure of 29.92 inches of mercury.

N. "Submerged combustion evaporators" means vessels in which combustion occurs beneath the surface of a solution of dissolved potash, salt or sodium sulfate materials for the purpose of evaporating water.

N.M. Admin. Code § 20.2.19.7

11/30/95; 20.2.19.7 NMAC - Rn, 20 NMAC 2.19.107 10/31/02