IMPERIAL COUNTY AIR POLLUTION CONTROL DISTRICT


RULE 101. DEFINITIONS

(Adopted 7/28/81; revised 9/14/99; 1/16/2001)

Except where the context otherwise indicates, the following definitions shall govern the implementation of these Rules and regulations. Also, pursuant to Rule 115, definitions contained in applicable sections of the California Health and Safety Code and Title 17 of the California Code of Regulations, as well as the Federal Clean Air Act and implementing regulations, may be used even when not set forth herein.

ACTUAL EMISSIONS: measured or calculated emissions which most accurately represent the emissions from an Emissions Unit. Determination of Actual Emissions must be based on average actual production rates, fuel consumption and/or throughput rates from the last three years. Emission factors shall be established by source testing or obtained from AP-42 or other approved source.

ACTUAL EMISSIONS REDUCTIONS (AER): reductions of Actual Emissions from an Emissions Unit, calculated pursuant to Section E.5 of Rule 207, which are Real, Quantifiable, Surplus, Permanent and Enforceable.

ACTUAL INTERRUPTIONS OF POWER: the interruption of electrical service by an unforeseeable event, or when the power reserves of the serving utility fall below 5 percent.

ADDITIVE: Any substance added in small quantities to another substance or mixture in order to increase volume and/or change the physical properties of the mixture.

ADHESIVE: a material that is used to bond one surface to another surface by attachment.

ADHESIVE BONDING PRIMER: a Coating applied in a very thin film to aerospace Adhesive bond detail components for corrosion inhibition and adhesion of the subsequently applied Adhesive.

ADHESIVE BONDING PRIMER, STRUCTURAL: an Adhesive Bonding Primer used in conjunction with structural Adhesives to form load carrying aircraft components.

ADHESIVE BONDING PRIMER FOR ELASTOMERS AND ELASTOMERIC ADHERENTS: an Adhesive bonding primer applied to elastomers or nonmetallic substrates for adhesion of the subsequently applied Adhesive.

ADMINISTRATOR: the Administrator of the United States Environmental Protection Agency.

AEROSPACE COMPONENT: any fabricated part, assembly of parts or completed unit of any aircraft, helicopter, missile or Space Vehicle.

AFFECTED POLLUTANTS: pollutants for which Ambient Air Quality Standards have been established by the Environmental Protection Agency or the California Air Resources Board and the Precursors to such pollutants, and those pollutants regulated by the Environmental Protection Agency under the Clean Air Act or by the California Air Resources Board under the Health and Safety Code, including Reactive Organic Compounds (ROC), nitrogen oxides (NOx), sulfur oxides (SOx), Particulate Matter with an aerodynamic diameter equal to or less than 10 micrometers (PM10), carbon monoxide (CO), lead, asbestos, beryllium, mercury, vinyl chloride, Fluorides, sulfuric acid mist, hydrogen sulfide, and Total Reduced Sulfur Compounds. Also those pollutants which the Environmental Protection Agency, after notice and opportunity for public comment, or the California Air Resources Board or the Air Pollution Control Board after public hearing, determine may have a significant adverse effect on the environment, the public health, or the public welfare.

AGRICULTURAL BURNING: Open Outdoor Fires used in agricultural operations in the growing of crops or raising of fowls or animals, or Open Outdoor Fires used in forest management, range improvement, or the improvement of land for wildlife and game habitat, or disease or pest prevention.

AGRICULTURAL BURNING: also means Open Outdoor Fires used in the operation or maintenance of a system for the delivery of water for the purposes specified above.

AGRICULTURAL BURNING: also means Open Outdoor Fires used in wildland vegetation management burning. Wildland vegetation management burning is the use of prescribed burning conducted by a public agency, or through a cooperative agreement or contract involving a public agency, to burn land predominantly covered with chaparral, trees, grass, or standing brush. Prescribed burning is the planned application of fire to vegetation to achieve any specific objective on lands selected in advance of that application. The planned application of fire may also include natural or accidental ignition.

AIR CONTAMINANT: any discharge, release, or other propagation into the Atmosphere and includes, but is not limited to, smoke, charred paper, Dust, soot, grime, carbon, Fumes, gases, odors, Particulate Matter, acids, or any other combination thereof. For the purposes of Rule 403, the definition applies only to materials which are solid or liquid at Standard Conditions (60 degrees Fahrenheit, 760 mm Hg).

AIR POLLUTION CONTROL OFFICER (APCO): the Person appointed by the Air Pollution Control Board and assigned to manage and direct the business and operations of the district, or Designee.

AMBIENT AIR QUALITY STANDARDS: for the purposes of these regulations Ambient Air Quality Standards shall be interpreted to include State and Federal Ambient Air Quality Standards. For the purposes of submittal of this regulation to the Environmental Protection Agency for inclusion in the California State Implementation Plan all references in this regulation to Ambient Air Quality Standards shall be interpreted as National Ambient Air Quality Standards.

ANTI-GLARE/SAFETY COATING: a Coating which does not reflect light.

APPLICATION EQUIPMENT: for the purposes of Rule 425, means Equipment used for applying Coatings to a substrate. Application Equipment includes Coating distribution lines, Coating hoses, Equipment used in Hand Application Methods, and Equipment used in mechanically operated application methods, including but not limited to spray guns, spinning disks, and pressure pots.

APPROVED IGNITION DEVICES: includes those instruments or materials that will ignite agricultural waste without the production of black smoke by the ignition device. This would include such items as liquid petroleum gas, butane, propane, and flares, but does not include the use of tires, tar paper, oil, and other similar materials.

APPURTENANCES: accessories to an architectural structure, including, but not limited to hand railings, cabinets, bathroom and kitchen fixtures, fences, rain-gutters and down-spouts, window screens, lamp-posts, heating and air conditioning Equipment, large fixed stationary tools and concrete forms, other mechanical Equipment.

ARCHITECTURAL COATINGS: Coatings applied to stationary structures and their Appurtenances, and to mobile homes, to pavements, or to curbs.

ASPHALT: the dark-brown to black cementitious material (solid, semi-solid, or liquid in consistency) of which the main constituents are bitumens which occur naturally or as a residue of petroleum refining.

ATMOSPHERE: the air that envelopes or surrounds the earth. When air pollutants are emitted into or within a building, such emission into or within the building shall be considered an emission into the Atmosphere unless the building is designed specifically as a piece of air pollution Control Equipment.

AUTHORITY TO CONSTRUCT: a written permit issued by the Imperial County Air Pollution Control District for the construction, installation, assembly, modification, or replacement of any facility, article, machine, equipment, or other contrivance.

BANKING: the District's system of quantifying, certifying, recording, and storing emission reduction credits for future use or Transfer. This system shall be called the Emission Reduction Credit Bank (herein referred to as the" ERC Bank").

BANKING REGISTER: the document that records all emission reduction credits deposits, withdrawals, Transfers, and transactions.

BELOW GROUND WOOD PRESERVATIVES: Coatings formulated to protect below ground wood from decay or insect attack and that contains a Wood Preservative chemical registered by the California Department of Food and Agriculture.

BEST AVAILABLE CONTROL TECHNOLOGY (BACT):

For any Emissions Unit the more stringent of:

1. The most effective emission Control Device, emission limit, or technique which has been achieved in practice for such class or category of Source unless the applicant demonstrates to the satisfaction of the Air Pollution Control Officer that such limitations are not achievable.

2. Any other alternative emission Control Device, emission control technique, basic Equipment, fuel, or process determined to be technologically feasible and cost-effective by the Air Pollution Control Officer. Cost-effectiveness analyses shall be performed in accordance with methodology and criteria specified in the Best Available Control Technology Guideline for the South Coast Air Quality Management District, or an alternative methodology and criteria acceptable to the Air Pollution Control Officer.

3. Under no circumstances shall BACT be determined to be less stringent than the emission control required by any applicable provision of laws or regulations of the District, State and Federal government, or the most stringent emissions limitation which is contained in the implementation plan of any State, unless the applicant demonstrates to the satisfaction of the Air Pollution Control Officer that such limitations are not technologically achievable. In no event shall the application of BACT result in the emissions of any pollutant which exceeds the emissions allowed by any applicable New Source Performance Standard (40 CFR, part 60) or National Emission Standard for Hazardous Air Pollutants (40 CFR, part 61).

BEST AVAILABLE RETROFIT CONTROL TECHNOLOGY (BARCT): the most stringent and cost-effective of the following control options:

1. The most effective elements of the related suggested control measure.

2. The most effective limits in effect in any regulation in California, in the U.S., or in any other country for that Source category with such limits resulting from the application of retrofit control technologies judged by the Air Pollution Control Officer to be demonstrated and reliable.

3. The most effective limit for a Source category determined to a reasonable degree of certainty, to be achievable in the near future.

4. Any combination of control technologies that will achieve emission reductions equivalent to that resulting from the most stringent option listed above.

BIOMASS: material derived from the harvesting of crops or removal of vegetation, including timber, except for material from processed dimensional timber.

BITUMINOUS COATINGS: black or brownish Coating materials which are soluble in carbon disulfide, which consist mainly of hydrocarbons, and which are obtained from natural deposits or as residues from the distillation of crude oils or of low grades of coal.

BOARD: the Air Pollution Control Board of the Imperial County Air Pollution Control District.

BOND BREAKERS: Coatings applied between layers of concrete to prevent the freshly poured top layer of concrete from bonding to the layer over which it is poured.

BOTTOM LOADED: a Gasoline Delivery Vessel shall be considered to be Bottom Loaded when the fuel transfer and vapor return lines have separate, independent, and dedicated attachments on the delivery vessel, when the inlet is flush with the bottom of the storage device, and when the delivery vessel hatches remain closed during fuel transfer.

BREAKDOWN: an unforeseeable failure or malfunction of 1) any air pollution Control Equipment, or related operating Equipment, which causes a violation of any emission limitation or restriction prescribed by these Rules and regulations, or by State law, or 2) any monitoring Equipment, where such failure or malfunction is not the result of neglect or disregard of any air pollution control law or Rule or regulation, is not intentional or the result of negligence, is not the result of improper maintenance, does not constitute a nuisance, and is not a recurrent Breakdown of the same Equipment.

BURN DAY: any day on which Agricultural Burning is not prohibited by the Air Resources Board and/or the Imperial County Air Pollution Control District.

CALIFORNIA AIR RESOURCES BOARD (CARB): the California Air Resources Board, or any Person authorized to act on its behalf.

CAMOUFLAGE COATING: a Coating applied on Motor Vehicles, or Mobile Equipment to conceal such vehicles or Equipment from detection and/or to provide resistance to chemical agents.

CARB CERTIFIED VAPOR RECOVERY SYSTEM: is any Phase I or Phase II Vapor Recovery System which has been certified by the California Air Resources Board pursuant to Section 41954 of the California Health and Safety Code.

CARGO CARRIERS: Cargo Carriers are trains dedicated to a specific Stationary Source. For purposes of this Rule, the term "trains dedicated to a specific Stationary Source" shall not include any train for which the prime mover is owned and operated by a common carrier, and by which cargo is delivered to or from the Stationary Source under a contract of common carriage. The emissions from all trains dedicated to a specific Stationary Source, while operating in the District, including directly emitted and Fugitive Emissions, shall be considered as emissions from the Stationary Source.

CATALYST: a substance whose presence initiates/enhances the reaction between chemical compounds.

CLEAN AIR ACT (CAA): the federal Clean Air Act as amended in 1990 (42 U.S.C. section 7401 et seq.) And implementing regulations.

CLEAR WOOD FINISHES: clear and semi-transparent Coatings, including Lacquers and Varnishes, applied to wood substrates, to provide a transparent or translucent solid film.

COATING: material applied to a surface to identify, beautify, protect, minimize detection, or other purpose.

CODE OF FEDERAL REGULATIONS (CFR): the United States document codifying federal regulations.

COLD CLEANER: any batch loaded, non-boiling Organic Solvent Degreaser.

COLOR MATCH: the ability of a repair Coating to blend into an existing Coating so that color difference is not visibly detectable.

COMBUSTIBLE REFUSE: any solid or liquid combustible waste material containing carbon in a free or combined state.

COMBUSTION CONTAMINANT: solid or liquid particles discharged into the Atmosphere from the burning of any kind of material containing carbon in a free or combined state.

COMPLETE APPLICATION: completeness of an application for an authority to construct a new or modified Emissions Unit shall be evaluated on the basis of a list of required information which has been adopted by the District pursuant to Article 3, Sections 65940 through 65945.7 of Chapter 4.5 of Division 1 of Title 7 of the California Code of Regulations as they exist on the date on which the application is received.

CONDENSER EQUIPMENT: any equipment, such as refrigerated or non-refrigerated freeboard chillers, condenser coils, or water jackets, used to condense Organic Solvent vapor in a vapor Degreaser.

CONDENSER FLOW SWITCH: safety switch which shuts off sump heat if condenser water fails to circulate or if condenser water temperature rises above designated operating temperature.

CONSTRUCTION: any physical change or change in the method of operation (including fabrication, erection, installation, demolition, or Modification of an Emissions Unit) which would result in a change in Actual Emissions.

CONTAMINATED SOIL: for purposes of Rule 412, soil which indicates 50 ppm by volume, or greater of ROC (measured as hexane) at a distance of three inches above the surface with a ROC Analyzer.

CONTIGUOUS PROPERTY: two or more Parcels of land with a common boundary or separated solely by a public or private roadway or other public right-of-way.

CONTROL DEVICE: any device for reducing emissions to the Atmosphere.

CONTROL EFFICIENCY: the percentage of emissions removed by an existing emissions control device or estimated to be removed by a proposed emissions control device. The estimated Control Efficiency of the proposed air pollution control technology which will be incorporated, by means of Enforceable permit condition(s), in the authority to construct and Permit to Operate. Emissions reductions attributed to lowering throughput rates or operating reductions attributed to lowering throughput rates or operating hours shall not be considered in determining Control Efficiency.

CONTROL EQUIPMENT: air pollution Control Equipment that eliminates, reduces or controls the issuance of air emissions.

CONVEYORIZED DEGREASER: any continuously loaded, conveyorized Organic Solvent Degreaser, either boiling or non-boiling.

COOLING TOWERS: open water recirculating devices that use fans or natural draft to draw or force air through the device to cool water by evaporation and direct contact. This includes, but is not limited to, evaporative condensers, quench or Cooling Towers used for Heating Ventilation Air Conditioning (HVAC) and/or industrial cooling processes.

CUTBACK ASPHALT: paving grade Asphalts liquefied with petroleum distillate and as further defined by American Society for Testing and Materials (ASTM) specifications as follows:

Rapid Cure Type: ASTM D2028-76

Medium Cure Type: ASTM D2027-76


DAILY EMISSIONS LIMITATION: one, or a combination of permit conditions, specific to an Emissions Unit, which restricts its maximum daily emissions, in pounds per day, at or below the emissions associated with the maximum design capacity. A Daily Emissions Limitation must be:

1. contained in the latest authority to construct and contained in or Enforceable by the latest Permit to Operate for the Emissions Unit, and
2. Enforceable on a daily basis, and
3. established pursuant to a permitting action occurring after September 7, 1993, and used in the calculation of the Stationary Source daily Potential to Emit.

DECONTAMINATION: for purposes of Rule 412, removal of ROC from contaminated soil by aeration, or ICAPCD-approved treatment process.

DEGREASER: tank, tray, drum, or other container in which objects to be cleaned are exposed to a liquid or vapor degreasing Organic Solvent

DISTRICT: the Imperial County Air Pollution Control District.

DRY FOG COATING: Coatings which are formulated to be sprayed, and formulated such that over spray droplets dry before subsequent contact with other surfaces.

DUST: minute solid particles released into the air by natural forces or by mechanical processes such as crushing, grinding, milling, drilling, and demolishing.

ELECTROSTATIC APPLICATION: a sufficient charging of atomized paint droplets to cause deposition, principally by electrostatic attraction.

ELECTROSTATIC DISCHARGE COATING: electrically conductive Coating which prevents the build-up of static charge on the surface of an Aerospace Component. Applications include, but are not limited to, composites, Space Vehicles, missiles, and helicopter blades.

EMERGENCY STANDBY TANK: a standby tank used in an emergency to store organic liquids during the draining of the primary tank or for use when the operator is granted Breakdown relief.

EMISSIONS INCREASE: for the purposes of Rule 207, means any increase in the Stationary Source Potential to Emit, calculated pursuant to Rule 207 E.6.

EMISSION REDUCTION CREDITS (ERCs): reductions of Actual Emissions from an Emissions Unit that are registered with the District in accordance with the requirements of Rule 214.

EMISSIONS UNIT: an identifiable operation or piece of process Equipment, such as an article, machine, or other contrivance, which emits, has the Potential to Emit, or results in the emissions of any affected pollutant directly or as Fugitive Emissions.

EMULSIFIED ASPHALT: any Asphalt liquefied with water containing an emulsifier, either anionic or cationic.

ENCLOSED GUN CLEANER: a device that is used for the cleaning of spray guns that is not open to the ambient air when in use and has a mechanism to force the cleanup material through the gun while the cleaner is in operation.

ENFORCEABLE: "Enforceable" emission reductions are assured by verifiable and legally binding conditions on a Authority to Construct and/or Permit to Operate that limits emission rates over testable time averaging periods.

EQUIPMENT: includes any article, machine, or contrivance that emits, has the Potential to Emit, or reduces emissions.

ERC CERTIFICATE: a document identifying the quantity and type of ERCs issued by the District to the individual(s) or Sources identified on the Certificate.

ESSENTIAL PUBLIC SERVICES: the following Sources shall be considered Essential Public Services:

1. Sewage treatment operations which are publicly owned and operated consistent with the approved General Plan; or
2. prison, jail, correctional facility; or
3. police or fire fighting facility; or
4. school or hospital; or
5. landfill gas control or processing system which is publicly owned and operated; or
6. water delivery operations which are publicly owned and operated consistent with the approved General Plan; or
7. cleanup operations to remove contaminants from soil or water, mandated by regional Water Quality Control Board, California Department of Health Services, Environmental Protection Agency or any other State or Federal law.

EXCAVATION: for purposes of Rule 412, removal of contaminated soil for the purpose of decontamination. Excavated soil may have become contaminated by leaking underground or above ground tank, loading rack, spillage, pipeline leak, accidental spill, or any other source.

EXEMPT COMPOUND: compounds listed as exceptions in the definition of Reactive Organic Compounds.

EXTREME PERFORMANCE COATING: Coating that encounters acute or chronic exposure to salt water, corrosives, caustics, acids, oxidizing agents, wind- or ocean-driven debris, or electromagnetic pulses.

FEDERAL CLEAN AIR ACT: the Federal Clean Air Act (CAA) as amended in 1990 (42 U.S.C. section 7401 et seq.) and its implementing regulations.

FINISH: the Coating of incomplete vehicles, their parts and components, or Mobile Equipment for which the original Coating was not applied from an Original Equipment manufacturer (OEM) plant Coating assembly line.

FIRE RETARDANT COATINGS: Coatings which have a flame spread index of less than 25 when tested in accordance with ASTM Designation E-84-87, "Standard Test Method for Surface Burning Characteristics of Building Material", after application to Douglas fir according to the manufacturer's recommendations.

FIXED COVER: any cover made out of metal(s), polymer(s) or other material, and installed in a permanent position over the liquid.

FLIGHT TEST COATINGS: a temporary coating applied to test aircraft to protect from corrosion and to provide required markings during flight test evaluation.

FLOATING COVER: any cover made out of metal(s), polymer(s) or other material, which is in contact with a liquid surface at all times.

FLUORIDES: elemental fluorine and all fluoride compounds.

FORM RELEASE COMPOUNDS: coatings applied to a form to prevent the freshly poured material from bonding to the form.

FREEBOARD HEIGHT:

FREEBOARD RATIO: Freeboard Height divided by smaller of length or width of Degreaser.

FROST PROTECTION: the protection of agricultural crops against damage from frost or cold weather.

FUEL BURNING EQUIPMENT: the minimum number of boiler, furnaces, jet engines or other Fuel Burning Equipment, the simultaneous operations of which are required for the production of useful heat or power. Equipment which burns fuel and serves primarily as air pollution Control Equipment by using a combustion process to destroy Air Contaminants shall not be considered "Fuel Burning Equipment."

FUEL TANK COATING: a Coating applied to the interior of a fuel tank of an aircraft or Space Vehicle to protect it from corrosion.

FUGITIVE EMISSIONS: those emissions which cannot reasonably pass through a stack, chimney, vent, or other functionally equivalent opening.

FUMES: small particles resulting from chemical reaction or from the condensation of vapors produced in combustion, distillation or sublimation, or other above ambient temperature process.

GASOLINE: any petroleum distillate having a Reid Vapor pressure of 4.0 pounds or greater.

GASOLINE BULK PLANT: an intermediate Gasoline Loading Facility where delivery to the facility's storage containers and delivery from the facility is by truck.

GASOLINE DELIVERY VESSEL: a truck, trailer, or railroad car with a storage device containing Gasoline, or Gasoline Vapors, used to transport fuel or other petroleum products.

GASOLINE TERMINAL: a Gasoline Loading Facility where delivery to the facility's storage containers is by means other than truck.

GASOLINE THROUGHPUT: for the purposes of Rule 415, means the volume of Gasoline dispensed at a Gasoline dispensing facility.

GASOLINE VAPORS: the Reactive Organic Compounds in the displaced vapors, including any entrained liquid Gasoline.

GRAPHIC DESIGN APPLICATION: the application of logos, letters, numbers, and graphics to a painted surface, with or without the use of a template.

GRAZING LAND: open range or fenced fields where animals feed on crops or grasses which grow naturally or are planted.

GROUP I VEHICLES: public transit buses and Mobile Equipment.

GROUP II VEHICLES: passenger cars, large/heavy duty truck cabs and chassis, Light and Medium Duty Trucks and Vans, and motorcycles.

HALOGENATED HYDROCARBONS: all Halogenated Hydrocarbons listed as exempted under the definition of Reactive Organic Compounds.

HAND APPLICATION METHODS: the application of Coatings by nonmechanical hand-held Equipment including but not limited to paint brushes, hand rollers, caulking guns, trowels, spatulas, syringe daubers, rags, and sponges.

HEALTH AND SAFETY CODE (H&SC): "Health and Safety Code" refers to the California Health and Safety Code.

HEARING BOARD: the Hearing Board of the Air Pollution Control District of Imperial County.

HEXAVALENT CHROMIUM-CONTAINING WATER TREATMENT CHEMICALS: Water Treatment Additives which contain hexavalent chromium (Chrome VI), alone or in combination with other water treatment chemicals.

HIGH TEMPERATURE INDUSTRIAL MAINTENANCE COATINGS: Coatings formulated for and applied to substrates exposed continuously or intermittently to temperatures above 400 degrees Fahrenheit.

HIGH TEMPERATURE RESISTANT, THERMAL FLASH RESISTANT, RAIN EROSION RESISTANT COATING: for the purposes of Rule 425, means a fluoroelastomeric Coating that is designed specifically to protect aerospace vehicles from thermonuclear flash, erosion from airborne particles such as rain, ice, sand, etc., and temperatures above 450 degrees F resulting from aerodynamic heating.

HIGH VOLATILITY SOLVENT: any Organic Solvent that is not a Low Volatility Solvent.

HIGH-VOLUME, LOW-PRESSURE (HVLP): spray Equipment that uses a high volume of air delivered at pressures between 0.1 and 10 psig measured dynamically at the center of the air cap and the air horns.

HISTORIC ACTUAL EMISSIONS: Actual Emissions from an existing Emissions Unit averaged over three consecutive years immediately preceding the date of application. The Air Pollution Control Officer may approve another three consecutive year period within the last five consecutive years, if he determines that the other period is more representative of normal source operation. Where an Emissions Unit has been in operation for less than three years, a shorter averaging period of at least one year may be used providing it represents the full operational history of the Stationary Source. The Historic Actual Emissions from Emissions Units which have been in operation for less than one year shall be equal to zero. Historic Actual Emissions are to be calculated in pounds per quarter for each calendar quarter. Historic Actual Emissions in quarters 2 or 3 may be lowered by transferring these emissions to quarters 1 or 4, provided that the resulting emissions in quarters 1 or 4 are no higher than the higher of quarters 2 or 3.

HISTORIC EMISSIONS: The Potential to Emit of an existing Emissions Unit prior to Modification. For a new Emissions Unit Historic Emissions are equal to zero.

HYDROCARBON VAPORS: the Reactive Organic Compounds in the vapors, including any entrained organic liquid.

IDENTICAL EMISSIONS UNIT: an Emissions Unit that replaces an existing Emissions Unit and satisfies all of the following criteria:

1. Performs the same operation(s) as the Emissions Unit being replaced, and
2. is manufactured by the same company, and is an equivalent model with the same size and rating, and
3. expected Actual Emissions are less than or equal to those from the Emissions Unit being replaced.

IMPERVIOUS BARRIER: for purposes of Rule 412, physical covering for contaminated soil which controls ROC emissions to the extent a ROC Analyzer detects less than 50 ppm by volume ROC (measured as hexane) at a distance of three inches above the surface.

INCINERATOR: any furnace or similar enclosed fire chamber, with or without a draft control, used for burning refuse or other waste material and where the products of combustion are channeled through a flue.

INDUSTRIAL MAINTENANCE ANTI-GRAFFITI COATINGS: two-component clear industrial maintenance Coatings formulated for and applied to exterior walls and murals to resist repeated scrubbing and exposure to harsh solvents.

INDUSTRIAL MAINTENANCE COATINGS: high performance Coatings formulated for and applied to substrates in industrial, commercial or institutional situations that are exposed to one or more of the following extreme environmental conditions:

1. Immersion in water, wastewater or chemical solutions (aqueous and non-aqueous solutions), or chronic exposure of interior surfaces to moisture condensation;
2. acute or chronic exposure to corrosive, caustic or acidic agents, or to chemicals, chemical Fumes, chemical mixtures or solutions;
3. repeated exposure to temperatures in excess of 250F;
4. repeated heavy abrasion, including mechanical wear and repeated scrubbing with industrial solvents, cleansers or scouring agents; or
5. exterior exposure of metal structures.

LACQUERS: Clear Wood Finishes formulated with nitrocellulose or synthetic resins to dry by evaporation without chemical reaction, including clear lacquer Sanding Sealers.

LARGE/HEAVY DUTY TRUCKS: any truck having a manufacturer's gross vehicle weight rating of over 10,000 pounds.

LEAK OF REACTIVE ORGANIC COMPOUNDS: an emission of a liquid containing Reactive Organic Compounds at a rate of more than 3 drops per minute, as a continuous stream, or as a visible mist; or an emission of a gas containing Reactive Organic Compounds which causes an appropriate analyzer sampling 1 centimeter from a Source to register at least 10,000 ppm as methane as determined by EPA Reference Method 21.

LEAK-FREE: for the purposes of Rule 415, means a liquid leak of no more than three drops per minute excluding losses which occur upon disconnecting transfer fittings. Provided such disconnect losses do not exceed 10 milliliters (0.34 fluid ounces) per disconnect, averaged over three disconnects.

LIGHT AND MEDIUM DUTY TRUCKS AND VANS; any truck or van having a manufacturer's gross vehicle weight rating of 10,000 pounds or less.

LIVESTOCK FEED YARD: a lot, fenced area, or facility used for the feeding or holding of more than ten (10) cattle, except for Grazing Land as defined herein.

LOADING FACILITY: any aggregation or combination of Gasoline loading Equipment which is both (1) possessed by one Person, and (2) located so that all the Gasoline loading outlets for such aggregation or combination of loading Equipment can be encompassed within any circle of 300 feet in diameter.

LOW VOLATILITY SOLVENT: any Organic Solvent, including emulsions, containing no more than 2% Reactive Organic Compounds (ROC) by weight as determined by U.S. EPA Test Method 24.

LOWEST ACHIEVABLE EMISSION RATE (LAER): for any Stationary Source or Modification the more stringent of:

1. The most stringent emissions limitation which is contained in the implementation plan of any state for such class or category of Stationary Source, unless the Owner or Operator of the proposed Stationary Source demonstrates that such limitations are not achievable; or
2. the most effective emissions control technique which has been achieved in practice, for such class or category of Source as determined by the Air Pollution Control Officer; or
3. the emission limitation specified for such class or category of Source under applicable Federal New Source Performance Standards pursuant to Section III of the Clean Air Act; or
4. any other emissions control technique found after public hearing, by the Air Pollution Control Officer or the Air Resources Board to be technologically feasible and cost effective for such class or category of Sources or for a specific Source.

MAGNESITE CEMENT COATINGS: Coatings formulated for and applied to magnesite cement decking to protect the magnesite cement substrate from erosion by water.

MAJOR PROJECT: for the purpose of Rule 206 and 301 means a Project which will emit pollutants under any of the following conditions: 250 or more lbs/day controlled for any single pollutant; 100 or more tons/yr uncontrolled for any single pollutant; 250 or more tons/yr uncontrolled for all emissions combined.

MAKE-UP SOLVENT: Organic Solvent added to a Degreaser to replace Organic Solvent lost through evaporation, carry-out, splashing, leakage, or disposal.

MANURE: the accumulated animal excrement in or around a Livestock Feed Yard that does not undergo decomposition as would occur on open Grazing Land or natural habitat. This definition includes feces or urine which may be mixed with bedding materials, with spilled feed or with soil.

MASKANT: a Coating applied directly to a metal part or other surface to protect surface areas during chemical milling, anodizing, aging, bonding, plating, etching, or other chemical surface operations.

MASTIC TEXTURE COATINGS: Coatings formulated to cover holes and minor cracks and to conceal surface irregularities, and applied in a thickness of at least 10 mils (dry, single coat).

METALLIC PIGMENTED COATINGS: Coatings containing at least 0.4 pounds of metallic pigment per gallon of Coating as applied.

METALLIC TOPCOAT: for the purposes of Rule 427 means any Coating which contains more than 5 g/L (,042 lb/gal) of metal particles, as applied, where such particles are visible in the dried film.

MINOR PROJECT: for the purpose of Rules 206 and 301, a project for which uncontrolled emissions will not exceed 35 lbs/day of any pollutant, and for which there will be no emission of pollutants which are toxic, hazardous, or for which the District has been designated nonattainment.

MOBILE EQUIPMENT: for the purposes of Rule 427 is any Equipment which may be drawn or is capable of being driven on a roadway, including, but not limited to, truck bodies, truck trailers, utility bodies, camper shells, mobile cranes, bulldozers, street cleaners, golf carts, and implements of husbandry.

MOBILE TRANSPORT TANK: any tank truck or trailer, railroad tank car, or tanker used to transport reactive organic liquids.

MODELING: use of an air quality simulation model, based on specified assumptions and data, which has been approved in writing by the Executive Officer of the Air Resources Board.

MODIFICATION: any physical change, change in method of operation of, or addition to, an existing Emissions Unit, or any change in hours of operation or production rate which would necessitate a change in permit conditions, except that routine maintenance or repair shall not be considered to be a physical change.

Unless previously limited by a permit condition, the following shall not be considered changes in method of operation:

1. Change in ownership of an existing Stationary Source with valid permit(s) to operate.

2. Replacement of an existing Emissions Unit with an Identical Emissions Unit.


3. Replacement of part of an Emissions Unit providing the total fixed capital cost of the replacement part(s) does not exceed 50 percent of the fixed capital cost of an entirely new Emissions Unit and emissions are less than or equal to those from the original Emissions Unit.

A modification of an Emissions Unit also occurs when there is an increase in emissions from such unit caused by a modification of the Stationary Source and the Emissions Unit is not subject to a Daily Emissions Limitation.

A modification to a Stationary Source shall include any modification of its permitted Emissions Units or addition of any new Emissions Units.

A reconstructed Stationary Source shall be treated as a new Stationary Source and not as a modification.

MOTOR VEHICLE: a vehicle that is self propelled as defined in the California Vehicle Code, Division I, Section 415.

MULTI-COLORED COATINGS/TOPCOAT: a Coating/Topcoat that exhibits more than one color when applied and which is packaged in a single container and applied in a single coat.

MULTIPLE-CHAMBER INCINERATOR: any article, machine, Equipment, contrivance, structure or any part of a structure used to dispose of Combustible Refuse by burning, consisting of three or more refractory walls, interconnected by gas passage ports or ducts, and employing adequate design parameters necessary for maximum combustion of the material to be burned.

NO-BURN DAY: any day on which Agricultural Burning is prohibited by the California Air Resources Board or by the District.

NO-BURN LIST: a list of fields for which ERC's have been applied and on which burning will not be allowed.

NONATTAINMENT AREA: means for an air pollutant, an area which is shown by monitored data or which is calculated by air quality Modeling (or other methods determined by the Administrator to be reliable) to exceed an State or National Ambient Air Quality Standard for such pollutant, or an area designated by state or federal agency as exceeding state or federal air quality standards.

NONATTAINMENT POLLUTANT: any pollutant or Precursor for which an area within the District boundaries has been designated "nonattainment" pursuant to final rule-making by the Environmental Protection Agency published in the Federal Register, or that has been designated nonattainment by the Air Resources Board pursuant to Section 39607 of the Health and Safety Code is, itself, a Nonattainment Pollutant.

NON-FLAT ARCHITECTURAL COATING: a Coating which registers a gloss of 15 or greater on an 85° meter or five or greater on a 60° meter, and which is identified on the label as a gloss, semi-gloss, or eggshell enamel Coating.

NON-PERMITTED EMISSIONS: for the purpose of Rule 214, Non-Permitted emissions are emissions which are not governed under a District permit.

OFFSET: the use of an emission decrease to compensate for an emission increase of an affected pollutant from a new or modified Source subject to the requirements of the New Source Review Rule.

OFFSET FILL LINE: any liquid fill line which contains one or more pipe bends, and the horizontal distance between the truck delivery connection and the storage container fill opening is 6.1 meters (20 feet) or greater.

OIL-EFFLUENT WATER SEPARATOR: any device or piece of Equipment used to remove petroleum compounds or associated chemicals from effluent water

OPACITY: the degree to which emissions reduce the transmission of light and obscure the view of the background.

OPAQUE STAINS: all stains that are not classified as semitransparent stains.

OPAQUE WOOD PRESERVATIVES: all Wood Preservatives not classified as clear or semi-transparent Wood Preservatives or as Below Ground Wood Preservatives.

OPEN BURNING IN AGRICULTURAL OPERATIONS IN THE GROWING OF CROPS OR RAISING OF FOWLS OR ANIMALS:

1. The burning in the open of materials produced wholly from operations in the growing and harvesting of crops or raising of fowls or animals for the primary purpose of making a profit, of providing a livelihood, or of conducting agricultural research or instruction by an educational institution; and
2. the burning of grass and weeds in or adjacent to fields in cultivation or being prepared for cultivation in connection with operations qualifying under 1 above; and
3. the burning of materials not produced wholly from such operations, but which are intimately related to the growing or harvesting of crops and which are used in the fields, except as prohibited by District regulations. Examples are trays for drying raisins, date palm protection paper, and fertilizer and pesticide sacks or combustible containers, where the sacks or combustible containers are emptied in the field, or other reasonable nearby location under the direct control of the farm operator. This does not include products made from rubber.

OPEN OUTDOOR FIRE: the complete or partial burning or smoldering of any Combustible Refuse or other material of any type, directly exposed to the Atmosphere, whether or not enclosed in a fireproof container, where the products of combustion are not channeled through a flue.

OPEN-TOP VAPOR DEGREASER: any batch loaded, boiling Organic Solvent Degreaser.

ORCHARD OR CITRUS GROVE HEATER: any article, machine, Equipment, or other contrivance, burning any type of fuel, capable of emitting Air Contaminants, used or capable of being used for the purpose of giving protection from frost damage. Contrivances commonly known as wind machines are not included.

ORGANIC CONTENT: for purposes of Rule 412, degree of contamination used to limit daily rate contaminated soil may be added to an active soil aeration pile.

ORGANIC MATERIALS: chemical compounds of carbon excluding carbon monoxide, carbon dioxide, carbonic acid, metallic carbonates and ammonium carbonate.

ORGANIC SOLVENTS: include diluents and thinners and are defined as Organic Materials which are liquids at Standard Conditions and which are used as dissolvers, viscosity Reducers, or cleaning agents.

OWNER OR OPERATOR: includes, but is not limited to, any Person who owns, leases, supervises or operates Equipment.

PARCEL: a legally subdivided piece of land or combined lands under common ownership.

PARTICULATE MATTER: any material, except uncombined water, which exists in a finely divided form as a liquid or solid at Standard Conditions. Dust shall also be considered as Particulate Matter.

PARTICULATE MATTER (PM10): Particulate Matter with an aerodynamic diameter equal to or less than 10 micrometers.

PERMANENT: "Permanent" emission reductions means emissions reductions that will occur for the life of the Project.

PERMISSIVE-BURN DAY: any day on which Agricultural Burning is not prohibited by the California Air Resources Board or the District.

PERMIT TO OPERATE: the written permit issued by the Imperial County Air Pollution Control District for the operation of any facility, article, machine, Equipment, or other contrivance.

PERSON: any Person, firm, association, organization, partnership, business trust, corporation, company, limited liability company, contractor, supplier, installer, user or owner, or any federal, state or local government agency, public district, or any officer or employee thereof.

PHASE I VAPOR RECOVERY SYSTEM: a system which recovers the Hydrocarbon Vapors resulting from the transfer of Reactive Organic Compounds into a Stationary Tank or mobile transport tank.

PHASE II VAPOR RECOVERY SYSTEM: a Gasoline Vapor Recovery System that recovers vapors during the fueling of Motor Vehicles from stationary storage tanks.

PHOTOCHEMICALLY REACTIVE SOLVENT: any solvent with an aggregate of more than 20 percent of its total volume composed of the chemical compounds classified below or which exceeds any of the following individual percentage composition limitations, referred to the total volume of solvent:

1. A combination of hydrocarbons, alcohols, aldehydes, esters, ethers, or ketones having an olefinic or cyclo-olefinic type of unsaturation: 5 percent;
2. a combination of aromatic compounds with eight or more carbon atoms to the molecule except ethylbenzene: 8 percent;
3. a combination of ethylbenzene, ketones having branched hydrocarbon structures, or toluene: 20 percent.

POTENTIAL EMISSIONS: the sum of the maximum emissions from all Emissions Units at a Stationary Source, based on the maximum design capacity, unless otherwise limited by Enforceable conditions contained in the authority to construct and Permit to Operate, expressed in terms of pounds per quarter. (Pounds per quarter for PM10 and sulfur oxides shall be determined by multiplying the permitted emission level, pursuant to Rule 207, in pounds per day, by the permitted operating days per quarter.)

POTENTIAL TO EMIT: the maximum capacity of an Emissions Unit to emit a regulated air pollutant based on its physical and operational design. Any physical or operational limitation on the capacity of the Stationary Source to emit a pollutant, including air pollution Control Equipment and restrictions on hours of operation or on the type or amount of material combusted, stored, or processed, shall be treated as part of its design if the limitation or the effect it would have on emissions is incorporated into the applicable permit as an Enforceable permit condition.

PRECURSOR: a directly emitted air pollutant that, when released to the Atmosphere, forms or causes to be formed or contributes to the formation of a secondary pollutant for which a State or National Ambient Air Quality Standard has been adopted, or whose presence in the Atmosphere will contribute to the violation of one or more State or National Ambient Air Quality Standards. The following Precursor-secondary pollutant relationships shall be used for the purposes of these Regulations:

PRECURSORS SECONDARY POLLUTANTS
   
Hydrocarbons and substituted a) Photochemical Oxidant (Ozone)
hydrocarbons (reactive organic b) The organic fraction of PM10.
gases).  
   
Nitrogen Oxides (NOx) a) Nitrogen Dioxide (NO2)
  b) The nitrate fraction of PM10.
  c) Photochemical Oxidant (Ozone)
   
Sulfur Oxides (SOx) a) Sulfur Dioxide (SO2)
  b) Sulfates (SO4)
  c) The sulfate fraction of PM10.

PREPREG COMPOSITE MATERIAL: for the purposes of Rule 425, means, a reinforcing material impregnated with partially polymerized organic resins and ready for application.

PRESSURE TANK: a tank which maintains working pressure sufficient at all times to prevent hydrocarbon vapor or gas loss to the Atmosphere.

PRE-TREATMENT COATING AND WASH PRIMERS: is a Coating which contains at least ½ percent acids, by weight, and is applied directly to metal surfaces to provide corrosion resistance, etching, adhesion and ease of stripping.

PRE-TREATMENT WASH PRIMERS: same as PRE-TREATMENT COATING

PRIMER: a Coating usually applied for purposes of corrosion prevention, protection from the environment, functional fluid resistance and adhesion of subsequent Coatings. A Primer would include a Coating which is formulated to be used as a Primer but which, in a specific application, is used as an initial and final Coating without subsequent application of a Topcoat.

PRIMER SEALER: any Coating applied prior to the application of a Topcoat for the purpose of corrosion resistance, adhesion of the Topcoat, color uniformity, and to promote the ability of an undercoat to resist penetration by the Topcoat.

PRIMER SURFACER: any Coating applied prior to the application of a Topcoat for the purpose of corrosion resistance, adhesion of the Topcoat, and which promotes a uniform surface by filling in surface imperfections.

PRIORITY RESERVE: a depository of emission reductions for loan to applicable priority sources for use as Offsets pursuant to Rule 207.

PROCESS WEIGHT PER HOUR: the total weight of all materials introduced into any specific process which process may cause any discharge into the Atmosphere. Solid fuels charged will be considered as part of the process weight, but liquid and gaseous fuels and combustion air will not. "The Process Weight Per Hour" will be derived by dividing the total process weight by the number of hours in one complete operation from the beginning of any given process to the completion there-of, excluding any time during which the Equipment is idle. Cooling air and cooling water will not be considered as part of the process weight.

PROJECT: activity, for which a permit is required, or that has the Potential to Emit Air Contaminants.

PROPOSED EMISSIONS: The Potential to Emit for a new or post modification Emissions Unit.

QUANTIFIABLE: "Quantifiable" emission reductions must estimate the amount of the reduction and characterize this reduction for future use. Quantification may be based on emission factors, stack tests, monitored values, operating rates and averaging times, process or production inputs, modeling, or other reasonable measurable practices.

QUARTERLY: the calendar quarter beginning in January 1, April 1, July 1, and October 1.

RANGE IMPROVEMENT BURNING: the use of Open Outdoor Fires to remove vegetation for a wildlife, game or livestock habitat or for the initial establishment of an agricultural practice on previously uncultivated land.

REACTIVE ORGANIC COMPOUND (ROC): any volatile compound containing carbon, except:

1. Acetone, ethane, methane, and inorganic compounds:
   
  Acetone, ethane, methane, carbon monoxide, carbon dioxide, carbonic acid, metallic carbides or carbonates, and ammonium carbonate
   
2. Chlorinated compounds:
   
  1,1,1-trichloroethane (methyl chloroform)
  methylene chloride (dichloromethane)
   
3. Chlorofluorocarbons:
   
  trichlorofluoromethane (CFC-11)
  dichlorodifluoromethane (CFC-12)
  1,1,2-trichloro-1,2,2-trifluoroethane (CFC-113)
  1,2-dichloro-1,1,2,2-tetrafluoroethane (CFC-114)
  chloropentafluoroethane (CFC-115)
   
4. Hydrofluorocarbons:
   
  pentafluoroethane (HFC-125)
  1,1,2,2-tetrafluoroethane (HFC-134)
  1,1,1,2-tetrafluoroethane (HFC-134a)
  1,1,1-trifluoroethane (HFC-143a)
  1,1-difluoroethane (HFC-152a)
  trifluoromethane (HFC-23)
   
5. Hydrochlorofluorocarbons
   
  2,2-dichloro-1,1,1-trifluoroethane (HCFC-123)
  2-chloro-1,1,1,2-tetrafluoroethane (HCFC-124)
  1,1-dichloro-1-fluoroethane (HCFC-141b)
  1-chloro-1,1-difluoroethane (HCFC-142b)
  chlorodifluoromethane (HCFC-22)
   
6. Parachlorobenzotrifluoride (PCBTF)
   
7. Cyclic, branched or linear completely methylated siloxanes (VMS)
   
8. Perfluorocarbon compounds which fall into the following classes:
  cyclic, branched, or linear, completely fluorinated alkanes,
  cyclic, branched, or linear, completely fluorinated ethers with no unsaturation,
  cyclic, branched, or linear, completely fluorinated tertiary amines with no unsaturations,
  and sulfur containing perfluorocarbons with no unsaturations and with sulfur bonds only to carbon and fluorine.
   
  Perflourocarbons and siloxanes shall be assumed to be absent from any product or process unless the manufacturer or operator indicates which specific, individual compounds from these broad classes are present, indicates the amount(s) present, and demonstrates the availability of a test method approved by the U.S. EPA, the ARB, and the District for verifying the amount(s) present quantitatively.

REAL: a "Real" emission reduction means that actual air emissions are reduced.

REASONABLE FURTHER PROGRESS: Annual incremental reductions in emissions required for the purpose of ensuring attainment of state or federal ambient air quality standards by the applicable date.

REASONABLY AVAILABLE CONTROL TECHNOLOGY (RACT): is the most stringent of the following control options:

1. The most effective emission limits in existing regulations that are currently in effect in any District whose nonattainment status is designated as moderate, with such limits resulting from the application of retrofit technologies judged by the Air Pollution Control Officer to be demonstrated and reliable.

2. Emission limits identified in existing Suggested Control Measures (SCMs), model rules, the U.S. Environmental Protection Agency's (EPA's) Control Techniques Guidelines (CTGs) or other such documents.

3. Emission limits in new (post 1988) suggested control measures and the Technical Review Group of the California Air Pollution Control Officers Association approved Reasonably Availability Control Technology/Best Available Retrofit Control Technology (RACT/BARCT) determinations, which are not identified as Best Available Control Technology, (BACT) and are less stringent than BACT.

4. The lowest emission limit that can be achieved by the specific Source by the application of control technology taking into account environment impacts, technological feasibility, cost-effectiveness, and the specific design features or extent of necessary Modifications to the Source. Emission limits for existing specific Sources may be found in the field studies and evaluations of District regulations conducted by EPA and ARB.

5. The lowest emission limit achieved for the Source category that is technically feasible, economically reasonable and achieved in practice anywhere (including outside the U.S.), with such limits resulting from the application of retrofit control technologies judged by the Air Pollution Control Officer to be demonstrated and reliable.

6. Any combination of control technologies that will achieve emission reductions equivalent to that resulting from the most stringent option listed above.

REBUILT EQUIPMENT: for the purposes of Rule 415, means any component of a Vapor Recovery System that has undergone repair or replacement of any or all of its internal parts.

RECONSTRUCTED STATIONARY SOURCE: any Stationary Source undergoing physical Modification where the fixed capital cost of the new components exceeds 50 percent of the fixed capital cost of a comparable entirely new Stationary Source. Fixed capital cost means that capital needed to provide all the depreciable components.

REDUCER: the solvent used to thin enamel.

REDUCTION OF ANIMAL MATTER: processing animal matter by any process, including rendering, cooking, drying, dehydration, digestion, and evaporation, but not including any processing of food for human consumption.

REFINISHING: any Coating of vehicles, their parts and components, or Mobile Equipment, including partial body collision repairs, for the purpose of protection or beautification and which is subsequent to the original Coating applied at an Original Equipment Manufacturing (OEM) plant Coating assembly line.

REMOTE RESERVOIR: liquid Organic Solvent tank which is completely enclosed except for a solvent return opening no larger than 100 cm2 (15 in2) which allow used Organic Solvent to drain into it from a separate Organic Solvent sink or work area and which is not accessible for soaking parts.

RESIDENTIAL RUBBISH: refuse originating from Residential Uses and includes wood, paper, cloth, cardboard, tree trimmings, leaves, lawn clippings, and dry plants, but not household garbage.

RESIDENTIAL USE: use in areas where people reside or lodge including, but not limited to single and multiple family dwellings, condominiums, mobile homes, apartment complexes, motels, and hotels.

RETAIL FACILITY OR RETAIL SERVICE STATION: is any Motor Vehicle refueling facility subject to payment of California sales tax on Gasoline sales.

ROAD OILS: slow cure Asphalts.

ROC ANALYZER: hydrocarbon analyzer satisfying U.S. EPA Method 21, 40 CFR Part 60.

ROOF COATINGS: Coatings formulated for application to exterior roofs and for the primary purpose of preventing penetration of the substrate by water, or reflecting heat and reflecting ultraviolet radiation. Metallic pigmented Roof Coatings which qualify as metallic pigmented Coatings shall not

be considered to be in this category, but shall be considered to be in the metallic pigmented Coatings category.

RULE: a Rule of the Air Pollution Control District of Imperial County.

SANDING SEALERS: clear wood Coatings formulated for and applied to bare wood for sanding and to seal the wood for subsequent application of Varnish. To be considered a Sanding Sealer, a Coating must be clearly labeled as such.

SEALERS: Coatings formulated for and applied to a substrate to protect the substrate, to prevent subsequent Coatings from being absorbed by the substrate, or to prevent harm to subsequent Coatings by materials in the substrate.

SEASONAL SOURCE: any Stationary Source with more than 75 percent of its annual operating hours within a consecutive 120 day period.

SECONDARY EMISSIONS: for the purposes of Rule 207, means emissions which would occur as a result of the Construction or operation of a Stationary Source or Modification, but do not come from the Stationary Source or Modification itself. Secondary Emissions must be specific, well defined, Quantifiable, and impact the same general area as the Stationary Source or Modification which causes the Secondary Emissions. Secondary Emissions include emissions from any offsite support facility which would not be constructed or increase its emissions except as a result of the Construction of operation of the Stationary Source. Secondary Emissions do not include any emissions which come directly from a mobile source such as emissions from the tailpipe of a Motor Vehicle, from a train, or from a vessel.

SEMI-TRANSPARENT STAINS: Coatings which are formulated to change the color of a surface but not conceal the surface.

SEMI-TRANSPARENT WOOD PRESERVATIVES: Wood Preservative stains formulated and used to protect exposed wood from decay or insect attack by the addition of a Wood Preservative chemical registered by the California Department of Food and Agriculture, which change the color of a surface but do not conceal the surface, including clear Wood Preservatives.

SHELLACS: clear or pigmented Coatings formulated solely with the resinous secretions of the lac beetle (laccifer, lacca), thinned with alcohol, and formulated to dry by evaporation without a chemical reaction.

SHUTDOWN: for the purposes of calculating emission reduction credits, means the Permanent cessation of emissions from an emitting unit.

SOAP BUBBLE SCORE: the magnitude of a leak as indicated by the size of bubble formation resulting from spraying the suspected area with a standard solution. Soap scores are assigned following six seconds of observation as follows:

Soap Score

Estimate Bubble Volume (cc/6 Sec.)
       
  0   No detectable bubbling
  1   0 to 1 cc per 6 sec.
  2   1 to 10 cc per 6 sec.
  3   10 to 100 cc per 6 sec.
  4   Greater than 100 cc per 6 sec.

SOURCE: a specific device, article, or piece of Equipment from which Air Contaminants are emitted, or the distinct place (such as with fires or other chemical activity) from which air pollutants are emitted. A Project or facility may have more than one Source and the term may be used to describe a group of "Sources."

SPACE VEHICLE: a vehicle designed for use beyond the earth's Atmosphere.

SPECIALTY COATING: a Coating used for limited, specialty applications, such as Camouflage Coatings or Extreme Performance Coatings. Such Coatings frequently have no complying counterpart, and often must be used due to fulfill specific performance requirements of the particular Coating application.

SPOT/PANEL REPAIR: the non-assembly line process of repairing and restoring a portion of Motor Vehicle to pre-damaged condition.

SPRAY SAFETY SWITCH: safety switch which cuts off spray applicator pump if vapor level drops below a specific level.

STANDARD CONDITIONS: a gas temperature of 60 degrees Fahrenheit and a gas pressure of 14.7 pounds per square inch absolute. Results of all analyses and tests shall be calculated or reported at this gas temperature and pressure.

STATE BOARD: the California Air Resources Board, or any Person authorized to act on its behalf.

STATIONARY SOURCE: any building, structure, facility, equipment, or Emissions Unit which emits or may emit any affected pollutant directly or as a fugitive emission.

Building, structure, or facility includes all pollutant emitting activities, including Emissions Units, which:

1. are located on one or more contiguous or adjacent properties, and
2. are under the same or common ownership or operation, or which are owned or operated by entities which are under common control, and
3. belong to the same industrial grouping either by virtue of falling within the same two-digit standard industrial classification code or by virtue of being part of a common industrial process, manufacturing process, or connected process involving a common raw material.

STATIONARY TANK: any tank, reservoir or other container used to store, but not transport, Reactive Organic Compounds.

STENCIL COATING: for the purposes of Rule 425, means an ink or Coating which is rolled, sprayed with an airbrush or a touch-up gun with capacity of 8 ounces (236.4 ml) or less, or brushed using a template to add identifying letters and/or numbers to Aerospace Components.

STRIPPER: a Reactive Organic Compound liquid applied to remove a Maskant, paint, paint residue or Temporary Protective Coating.

SUBMERGED FILL PIPE: any permanent fill pipe which has its discharge opening entirely submerged when the liquid level is six inches above the bottom of the tank. "Submerged Fill Pipe" when applied to a tank which is loaded from the side means any fill pipe which has its discharge opening entirely submerged when the liquid level is 18 inches above the bottom of the tank.

SURFACE PREPARATION SOLVENT: any solvent used primarily for the conditioning of a surface to receive a Coating.

SURPLUS: "Surplus" emission reductions means emission reductions that are not required by any local, State, or Federal law, regulation, order, or requirement, are not required in any District adopted air quality plan, and are in excess of reductions used to demonstrate attainment of Federal and State Ambient Air Quality Standards.

SWIMMING POOL COATINGS: Coatings formulated and used to coat the interior of swimming pools and to resist swimming pool chemicals.

SWIMMING POOL REPAIR COATINGS: chlorinated rubber based Coatings used for the repair and maintenance of swimming pools over existing chlorinated rubber based Coatings.

SWITCH LOADING: the loading of organic liquids with a Reid vapor pressure of less than 4.0 pounds into a delivery vessel where the previous load was Gasoline.

TACK COAT: any application of Asphalt applied to an existing surface to provide a bond between new surfacing and an existing surface and to eliminate slippage planes where the new and existing surfaces meet.

TANK REPLACEMENT: the replacement of one or more stationary Gasoline storage tanks at an existing Gasoline dispensing facility, or, the excavation of 50 percent or more of an existing Gasoline dispensing facility's total underground liquid Gasoline piping from the stationary storage tanks to the Gasoline dispensers.

TEMPORARY PROTECTIVE COATING: a Coating applied to an Aerospace Component to protect it from mechanical and environmental damage during manufacturing and shipping.

THERMOCONTROL COATING: a Coating applied to Space Vehicle components to reflect heat and formulated to give specific heat reflectance, absorption and emissivity properties, or a Coating required for aerospace engine components to delay component failure due to fire.

TOPCOAT: a Coating applied over a Primer as the final coat for purposes such as appearance, identification, or protection.

TOTAL REDUCED SULFUR COMPOUNDS: the sulfur compounds methyl mercaptan, dimethyl sulfide, dimethyl disulfide, carbon disulfide, and carbonyl sulfide.

TOUCH-UP COATING: for the purposes of Rule 425, means a Coating that is used for that portion of the Coating operation which is incidental to the main Coating process but necessary to cover minor imperfection or to achieve coverage as required. A Touch-Up Coating may include small amounts of solvent, applied by hand, used to attach Coating patches exhibiting inadequate adhesion.

TOXIC AIR CONTAMINANT: an air pollutant which may cause or contribute to an increase in mortality or an increase in serious illness or which may pose a present or potential hazard to human health. This includes, but is not limited to, hazardous air pollutants listed in Section 112(b) of the Clean Air Act, which is incorporated by reference.

TRAFFIC COATINGS: Coatings formulated for, and applied to public streets, highways, and other surfaces including, but not limited to curbs, berms, driveways, and parking lots.

TRANSFER: in reference to emission reduction credits, means the conveyance of an emission reduction credit from one entity to another

TREATED BRUSH: material to be burned that has been felled, crushed or uprooted with mechanical Equipment, or desiccated with herbicides.

TRANSFER EFFICIENCY: for the purposes of these Rules means the ratio of the weight or volume of Coating solids adhering to the part being coated to the weight or volume of Coating solids used in the application process, expressed as a percentage.

ULTRASONIC: enhancement of cleaning process by vibrating Organic Solvent with high frequency sound waves, causing implosion of microscopic vapor cavities within liquid Organic Solvent.

UNDERCOATERS: Coatings formulated and applied to substrates to provide a smooth surface for subsequent coats.

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (U.S. EPA): the Administrator or appropriate delegate of the "United States Environmental Protection Agency."

UNRESERVED FUND BALANCE: The excess of the assets of a governmental fund or trust fund over its liabilities and fund balance reserved accounts.

UPWIND: the area bounded by a line drawn perpendicular to the predominant wind flow line passing through or nearest to the site of the new Source or Modification and extending to the boundaries of the same or adjoining counties within the same air basin except where the Air Pollution Control Officer determines that for reasons of topography or meteorology such a definition is inappropriate. For the purposes of Rule 207, means the area bounded by a line passing through the site of the new or modified Source perpendicular to the predominant summer wind flow line and extending to the boundaries of the same air basin in the direction opposite the predominant summer wind flow, except where the Air Pollution Control Officer determines that for reasons of topography or meteorology such a definition is inappropriate.

VAPOR LEVEL CONTROL THERMOSTAT: safety switch which turns off sump heater if temperature rises above design operating level at center of air-vapor interface.

VAPOR RECOVERY SYSTEM: a vapor-gathering system capable of collecting organic vapors and gases emitted during the operation of Equipment.

VAPOR TIGHT: for the purposes of Rule 415, means a leak of less than 100 percent of the lower explosive limit on a combustible gas detector measured at a distance of 2.5 cm (1 in) from the Source or no visible evidence of air entrainment in the sight glasses of liquid delivery hoses.

VARIANCE: an authorization by the Hearing Board to permit for a specified limited period of time some act contrary to the requirements specified by these Rules and regulations.

VARNISHES: Clear Wood Finishes formulated with various resins to dry by chemical reaction on exposure to air.

WATER TREATMENT ADDITIVES: any combination of chemicals used to treat Cooling Tower water. They include, but are not limited to, corrosion inhibitors antiscalants, dispersants and biocides.

WATERPROOFING SEALERS: colorless Coatings which are formulated and applied, for the sole purpose of protecting porous substrates, by eliminating or reducing the penetration of water. These Coatings do not alter surface appearance or texture.

WIPE CLEANING: method of cleaning which utilizes a cloth, cotton swab or other material, wetted with a Organic Solvent, which is physically rubbed on surface to be degreased.

WOOD PRESERVATIVES: Coatings formulated for the purpose of protecting exposed wood from decay and insect attack. These Coatings perform their function by penetrating into the wood.