changes

Are changes that contravene an express permit term. Such changes do not include changes that: Page 43 (1) would violate applicable requirements or contravene federally enforceable permit terms and conditions that are monitoring (including test methods), recordkeeping, reporting or compliance certification requirements; or (2) are Title I modifications and changes to a federally enforceable emission limit, work practice or voluntary emission cap. Shutdown The cessation of the operation of a source or air pollution control equipment for any purpose. Significant air pollutant source or significant air pollutant source project Means any air contaminant source, or air contaminant source project, that emits the following: (1) Equal or greater than one hundred tons per year of any of the following air contaminants: (a) PM₁₀. (b) PM₂,₅. (c) Sulfur dioxide. (d) Nitrogen oxides. (e) VOCs. (2) Equal or greater than one hundred tons per year of carbon monoxide. (3) Equal or greater than two tons per year of lead. Page | 44 Significant (1) in reference to a net emissions increase or the potential of a stationary source to emit any of the following air pollutants, a rate of emissions that would equal or exceed any of the following rates: Air Pollutant Emission Rate (Tons/Yr) Carbon monoxide 100 Nitrogen oxides 40 Sulfur dioxide 40 Particulate matter 25 PM₁₀ 15 PM₂.₅ 10 (of direct PM₂.₅ emissions); 40 (sulfur dioxide emissions); 40 (nitrogen oxides emissions); or 40 (VOC emissions), to the extent that any such pollutant is defined as a precursor for PM₂.₅. Ozone (VOCs or nitrogen 40 oxides) Lead 0.6 Fluorides (excluding hydrogen 3 fluoride) Sulfuric acid mist 7 Hydrogen sulfide 10 Total Reduced Sulfur (including 10 H₂S) Reduced Sulfur Compound 10 (including H₂S) Non-Methane Organic 50 Compounds from municipal waste landfills (a) Municipal waste combustor organic (measured as total tetra- through octa- chlorinated dibenzo-p-dioxins and dibenzofurans): 3.2 grams per year (0.007055 pounds per year). (b) Municipal waste combustor metals (measured as particulate matter): fourteen megagrams per year (fifteen tons per year). (c) Municipal waste combustor acid gases (measured as sulfur dioxide and hydrogen chloride): thirty-six megagrams per year (forty tons per year). Page 45 (2) In reference to a net emissions increase or the potential of a stationary source to emit a regulated NSR pollutant that the air pollutant and emission rate table in paragraph (1) of this definition does not list, any emission rate. (3) Notwithstanding paragraph (1) of this definition, "significant" means any emission rate or any net emissions increase associated with a major stationary source or major modification that would be constructed within ten kilometers of a Class I area, and have an impact on such area equal to or greater than one microgram per cubic meter (24-hour average). Significant Air Quality Impact Levels (for Class II and Class III Areas as defined in the Code of Federal Regulations- 40 CFR Part 52.21) An air quality impact equal to or greater than: Averaging Time (Hours) Air Pollutant Annual 24 8 3 1 Sulfur Dioxide 1.0 µg/m³ 5.0 µg/m³ 25 µg/m³ 7.8 µg/m³ PM10 1.0 µg/m³ 5.0 µg/m³ PM2.5 0.2 µg/m³ 1.2 µg/m³ Nitrogen oxide 1.0 µg/m³ 7.5 µg/m³ Carbon Monoxide 500 µg/m³ 2000 µg/m³ Ozone 2 µg/m³ Significant emissions increase Means, for a regulated NSR pollutant, an increase in emissions that is significant as defined in this rule for that pollutant. Significant Source A major stationary source or major modification that would exceed any of the significance levels defined in this regulation. Source Any structure, building, facility or installation (or combination thereof), which is located on one or more contiguous or adjacent properties under common ownership or operation, which emits or may emit any air pollutants. Stack Any chimney, flue, conduit or duct arranged to exhaust emissions into the ambient air. Page I 46 Standards Conditions A temperature of 25° centigrade (77° Fahrenheit) and a pressure of 760 mm Hg (one atmosphere). Standards of Performance for New Stationary Sources (SPNSS) The performance standards adopted by the US Environmental Protection Agency for new stationary sources as defined in 40 CFR 60. Stationary source Any building, structure, facility, or installation which emits or may emit a regulated NSR pollutant. Surplus Means emission reductions made below an applicable source baseline which conform to the following: (1) Are below allowable emission rates. (2) DNER or USEPA has not relied on the emission reduction in a required attainment demonstration of a national ambient air quality standard or a demonstration of reasonable further progress. (3) The director has not relied on the emission reduction in issuing any permit under this chapter. (4) Is not required by any applicable laws. Emission reductions can be used for offsets or emission reduction credits to the extent allowed under state or federal law. Temporary clean coal technology demonstration project A clean coal technology demonstration project that is operated for a period of 5 years or less, and which complies with the State Implementation Plan for the State in which the project is located and other requirements necessary to attain and maintain the national ambient air quality standards during the project and after it is terminated. Temporary source Means any new source of air contaminants or modification of an air contaminant source, which will cease operation, be relocated, or obtain a new permanent permit-to-install within two years of beginning operation. Page 47 Title V permit or permit (unless the context suggests otherwise) Means any permit or group of permits covering a Title V source that is issued, renewed, amended, or revised pursuant to Part VI of this Regulation. Title V program or permit program Means a program approved by the Administrator under Title V of the Act. Title V source Means any source subject to the permitting requirements of Part VI, as provided in sections (a) and (b) of Rule 601. Toxic or Hazardous Substances For the purpose of this regulations means either of the followings: (A) any chemical substance causing adverse effects on living organisms following ingestion, inhalation, topical or other parenteral exposure. An adverse effect includes any alteration in structure or function that is clearly deleterious to the organism causing that the body's normal compensatory and protective mechanisms become overwhelmed, resulting in irreversible or only partially reversible functional changes. For regulation purposes, toxic substances are classified henceforth on the basis of their adverse health effects in a biologic system. A toxic substance might be classified as a chemical carcinogen, genotoxic agent, developmental toxicant, reproductive toxicant, systemic toxicant, and/or sensory irritant. A chemical carcinogen is a type of toxic substance that has the ability to induce neoplasms in animals or humans. A genotoxic agent is a substance that may cause heritable changes or damage leading to heritable changes in genetic material. A developmental toxicant is a substance that may cause adverse effects on the developing organism from exposure prior to conception (either parent), during prenatal development, or postnatally to the time of sexual maturation. A reproductive toxicant is a substance that may induce a dysfunction affecting the processes of gametogenesis from its earliest stage to implantation of the conceptus in the endometrium. A systemic toxicant is a substance that may produce adverse effects on the function of various organ systems exclusive of cancer, genotoxicity, and developmental/reproductive toxicity. A sensory irritant is defined as a chemical which when inhaled via the nose will stimulate trigeminal nerve endings, evoke a burning sensation of the nasal passages, and inhibit respiration; most will induce coughing from laryngeal stimulation; also, are capable of stimulating Page 48 trigeminal nerve endings of the cornea and induce tearing; at high concentrations, particularly on moist facial skin, sensory irritants are capable of inducing a burning sensation; some have odorant and/or gustatory qualities; most will induce bronchoconstriction, usually at concentrations in the air higher than required for stimulation of nerve endings in the nasal passages. (B) Any air pollutants listed pursuant to Section 112(b) of the Clean Air Act Amendments of 1990. (C) Any air pollutants not listed pursuant to Section 112(b) of the Clean Air Act Amendments of 1990, but identified by the DNER through emission inventories or by other means and that is in conformity with the part (A) of this definition. ULSD Ultra Low Sulfur Diesel or ULSD means diesel fuel having sulfur content of 0.0015 percent (15 ppm) of sulfur by weight or less. Volatile Organic Compounds (VOC) Any chemical substance which contains carbon, excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbides, metallic carbonates and ammonium carbonate determined to have photochemical reactivity. This includes any such organic compound other than the following, which have been determined to have negligible photochemical reactivity: Methane;ethane;methylene chloride (dichloromethane); 1, 1, 1- trichloroethane (methyl chloroform);1,1,1-thrichloro-2,2,2-trifluoroethane(CFC-113), trichlorofluoromethane (CFC-11), dichlorodifluoromethane (CFC-12) chlorodifluoromethane (CFC-22), trifluoromethane (CFC-23); 1,2-dichloro 1,1,2,2- tetrafluoroethane (CFC-114); Chloropentafluoroethane (CFC-115); 1,1,1-trifluoro 2,2- dichloroethane (HCFC-123); 1,1,1,2-tetrafluoroethane (HFC-134a); 1,1-dichloro 1- fluoroethane (HCFC-141b), 1-chloro 1,1-difluoroethane (HCFC-142b); 2-chloro-1,1,1,2- tetrafluoroethane (HCFC-124); pentafluoroethane (HFC-125; 1,1,2,2-tetrafluoroethane (HFC-134); 1,1,1-trifluoroethane (HFC143a); 1,1-difluoroethane (HFC-152a); and perfluorocarbon compounds which fall into these classes: (i) cyclic branched, or linear, completely fluorinated alkanes; (ii) cyclic, branched, or linear, completely fluorinated ethers with no unsaturations; (iii) cyclic, branched, or linear completely fluorinated tertiary amines with no unsaturations; and (iv) sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine. Page 49 Worst-case operational scenario For Title V sources, the operational scenario under which the emissions of individual pollutants would be at the maximum levels allowable under the applicable requirements for the particular source. µg/m³ Means microgram per cubic meter Page I 50