Idaho Administrative Code › Title IDAPA 58 - Environmental Quality, Department of › Rule 58.01.01 - RULES FOR THE CONTROL OF AIR POLLUTION IN IDAHO › Section 58.01.01.317 - INSIGNIFICANT ACTIVITIES

Current through August 31, 2023
01.
Applicability Criteria
. This Section contains the criteria for
			 identifying insignificant activities for the purposes of the Tier I operating
			 permit program. Notwithstanding any other provision of this rule, no emission
			 unit or activity subject to an applicable requirement qualifies as an
			 insignificant emission unit or activity. Applicants may not exclude from Tier I
			 operating permit applications information that is needed to determine whether
			 the facility is major or whether the facility is in compliance with applicable
			 requirements. (3-28-23)
a. Presumptively
			 insignificant emission units. (3-28-23)
i.
			 Except as provided above, the activities listed in this section may be omitted
			 from the permit application. (3-28-23)
(1)
			 Blacksmith forges. (3-28-23)
(2)
			 Mobile transport tanks on vehicles except for those containing asphalt and not
			 including loading and unloading operations. (3-28-23)
(3) Natural gas pressure regulator vents,
			 excluding venting at oil and gas production facilities. (3-28-23)
(4) Storage tanks, reservoirs and pumping and
			 handling equipment of any size, limited to soaps, lubricants, lubricating oil,
			 treater oil, hydraulic fluid, vegetable oil, grease, animal fat, aqueous salt
			 solutions or other materials and processes using appropriate lids and covers
			 where there is no generation of objectionable odor or airborne particulate
			 matter. (3-28-23)
(5) Pressurized
			 storage of oxygen, nitrogen, carbon dioxide, air, or inert gases.
			 (3-28-23)
(6) Storage of solid
			 material, dust-free handling. (3-28-23)
(7) Boiler water treatment operations, not
			 including cooling towers. (3-28-23)
(8) Vents from continuous emission monitors
			 and other analyzers. (3-28-23)
(9)
			 Vents from rooms, buildings and enclosures that contain permitted emissions
			 units or activities from which local ventilation, controls, and separate
			 exhaust are provided. (3-28-23)
(10) Internal combustion engines for
			 propelling or powering a vehicle. (3-28-23)
(11) Recreational fireplaces including the
			 use of barbecues, campfires and ceremonial fires. (3-28-23)
(12) Brazing, soldering, and welding
			 equipment and cutting torches for use in cutting metal wherein components of
			 the metal do not generate hazardous air pollutants or hazardous air pollutant
			 precursors. (3-28-23)
(13)
			 Atmospheric generators used in connection with metal heat treating processes
			 using non-hazardous air pollutant metals as the primary raw material.
			 (3-28-23)
(14) Non-hazardous air
			 pollutant metal finishing or cleaning using tumblers. (3-28-23)
(15) Drop hammers or hydraulic presses for
			 forging or metalworking. (3-28-23)
(16) Electrolytic deposition, used to deposit
			 brass, bronze, copper, iron, tin, zinc, precious and other metals not listed as
			 the parents of hazardous air pollutants. (3-28-23)
(17) Equipment used for surface coating,
			 painting, dipping or spraying operations, except those that will emit volatile
			 organic compound or hazardous air pollutant. (3-28-23)
(18) Process water filtration systems.
			 (3-28-23)
(19) Portable electrical
			 generators that can be moved by hand from one (1) location to another. Moved by
			 hand means that it can be moved without the assistance of any motorized or
			 non-motorized vehicle, conveyance, or device. (3-28-23)
(20) Plastic and resin curing equipment,
			 excluding FRP and provided these activities are not related to the source's
			 primary business activity. (3-28-23)
(21) Extrusion equipment, metals, minerals,
			 plastics, grain or wood used without solvents containing hazardous air
			 pollutant. (3-28-23)
(22) Presses
			 and vacuum forming, for curing rubber and plastic products or for laminating
			 plastics without solvents containing hazardous air pollutants present.
			 (3-28-23)
(23) Roller mills and
			 calendars for use with rubber and plastics without solvents containing
			 hazardous air pollutants. (3-28-23)
(24) Conveying and storage of plastic
			 pellets. (3-28-23)
(25) Plastic
			 compression, injection, and transfer molding and extrusion, rotocasting,
			 pultrusion, blowmolding, excluding acrylics, PVC, polystyrene and related
			 copolymers and the use of plasticizer. Only oxygen, carbon dioxide, nitrogen,
			 air or inert gas allowed as blowing agent. (3-28-23)
(26) Plastic pipe welding.
			 (3-28-23)
(27) Wax application in
			 either a molten state or aqueous suspension. (3-28-23)
(28) Plant maintenance and upkeep including
			 routine housekeeping, janitorial activities, cleaning and preservation of
			 equipment, preparation for and painting of structures or equipment, retarring
			 roofs, applying insulation to buildings in accordance with applicable
			 environmental and health and safety requirements and lawn, landscaping and
			 groundskeeping activities. Provided these activities are not conducted as part
			 of a manufacturing process, are not related to the source's primary business
			 activity, and not otherwise triggering a permit modification.
			 (3-28-23)
(29) Agricultural
			 activities on a facility's property that are not subject to registration or new
			 source review by the permitting authority. (3-28-23)
(30) Maintenance of paved streets and parking
			 lots including paving, stripping, salting, sanding, cleaning and sweeping of
			 streets and paved surfaces. Provided these activities are not related to the
			 source's primary business activity, do not otherwise trigger a permit
			 modification, and fugitive emissions are reasonably controlled as required in
			 Section 808.
			 (3-28-23)
(31) Ultraviolet curing
			 processes. (3-28-23)
(32) Hot melt
			 adhesive application with no volatile organic compounds or hazardous air
			 pollutants in the adhesive formula. (3-28-23)
(33) Laundering, dryers, extractors, tumblers
			 for fabrics, using water solutions of bleach and/or detergents except for
			 boilers. (3-28-23)
(34) Steam
			 cleaning operations. (3-28-23)
(35)
			 Steam sterilizers. (3-28-23)
(36)
			 Food service activities including cafeterias, kitchen facilities and barbecues
			 located at a source for providing food service on premises. (3-28-23)
(37) Portable drums and totes.
			 (3-28-23)
(38) Fluorescent light
			 tube and aerosol can crushing in units designed to reduce emissions from these
			 activities. (3-28-23)
(39) Flares
			 used to indicate danger to the public. (3-28-23)
(40) General vehicle maintenance including
			 vehicle exhaust from repair facilities provided these activities are not
			 related to the source's primary business activity and do not have applicable
			 requirements under title VI of the Clean Air Act. (3-28-23)
(41) Comfort air conditioning or air-cooling
			 systems, not used to remove air contaminants from specific equipment.
			 (3-28-23)
(42) Natural draft hoods,
			 natural draft stacks, or natural draft ventilators for sanitary and storm
			 drains, safety valves, and storage tanks subject to size and service
			 limitations expressed elsewhere in this section. (3-28-23)
(43) Natural and forced air vents for
			 bathroom/toilet facilities. (3-28-23)
(44) Office activities. (3-28-23)
(45) Equipment used for quality
			 control/assurance or inspection purposes, including sampling equipment used
			 exclusively to withdraw materials for laboratory analyses and testing.
			 (3-28-23)
(46) Fire suppression
			 systems and similar safety equipment and equipment used to train firefighters
			 including fire drill pits. (3-28-23)
(47) Materials and equipment used by, and
			 activity related to operation of infirmary; infirmary is not the source's
			 business activity except equipment subject to 40 CFR Part 61 for radionuclides.
			 (3-28-23)
(48) Satellite
			 Accumulation Areas (SAAs) and Temporary Accumulation Areas (TAAs) managed in
			 compliance with RCRA. (3-28-23)
(49) Equipment for carving, cutting, routing,
			 turning, drilling, machining, sawing, surface grinding, sanding, planing,
			 buffing, shot blasting, sintering, or polishing: Ceramics, glass, leather,
			 metals, plastics, rubber, concrete, paper stock, or wood provided that these
			 activities are not conducted as part of a manufacturing process.
			 (3-28-23)
(50) Oxygen, nitrogen, or
			 rare gas extraction and liquefaction equipment subject to other exemption
			 limitation, e.g., internal and external combustion equipment.
			 (3-28-23)
(51) Slaughterhouses,
			 such as rendering cookers, boilers, heating plants, incinerators, and
			 electrical power generating equipment. (3-28-23)
(52) Ozonation equipment. (3-28-23)
(53) Temporary construction activities at a
			 facility provided that the installation or modification of emissions units must
			 comply with all applicable federal, state, and local rules and regulations.
			 (3-28-23)
(54) Batch loading and
			 unloading of solid phase catalysts. (3-28-23)
(55) Pulse capacitors. (3-28-23)
(56) Gas cabinets using only gases that are
			 not regulated air pollutants. (3-28-23)
(57) CO2 lasers, used only on metals and
			 other materials that do not emit hazardous air pollutants in the process.
			 (3-28-23)
(58) Structural changes
			 not having air contaminant emissions. (3-28-23)
(59) Equipment used to mix, package, store
			 and handle soaps, lubricants, vegetable oil, grease, animal fat, and
			 non-volatile aqueous salt solutions, provided appropriate lids and covers are
			 utilized. (3-28-23)
(60)
			 Photographic process equipment by which an image is reproduced upon material
			 sensitized to radiant energy, e.g., blueprint activity, photocopiers,
			 mimeograph, telefax, photographic developing, and microfiche provided these
			 activities are not related to the source's primary business activity.
			 (3-28-23)
(61) Pharmaceutical and
			 cosmetics packaging equipment. (3-28-23)
(62) Paper trimmers/binders provided these
			 activities are not related to the source's primary business activity.
			 (3-28-23)
(63) Bench-scale
			 laboratory equipment and laboratory equipment used exclusively for physical or
			 chemical analysis, including associated vacuum producing devices but excluding
			 research and development facilities. (3-28-23)
(64) Repair and maintenance shop activities
			 not related to the source's primary business activity. (3-28-23)
(65) Handling equipment and associated
			 activities for glass and aluminum which is destined for recycling, provided
			 these activities are not related to the source's primary business activity.
			 (3-28-23)
(66) Hydraulic and
			 hydrostatic testing equipment. (3-28-23)
(67) Batteries and battery charging stations,
			 except at battery manufacturing plants. (3-28-23)
(68) Porcelain and vitreous enameling
			 equipment. (3-28-23)
(69) Solid
			 waste containers. (3-28-23)
(70)
			 Salt baths using nonvolatile salts that do not result in emissions of any
			 regulated air pollutants. (3-28-23)
(71) Shock chambers. (3-28-23)
(72) Wire strippers. (3-28-23)
(73) Humidity chambers. (3-28-23)
(74) Solar simulators. (3-28-23)
(75) Environmental chambers not using
			 hazardous air pollutant gases. (3-28-23)
(76) Totally enclosed conveyors not including
			 transfer points. (3-28-23)
(77)
			 Steam vents and safety relief valves. (3-28-23)
(78) Air compressors, pneumatically operated
			 equipment, systems, and hand tools. (3-28-23)
(79) Steam leaks. (3-28-23)
(80) Boiler blow-down tank.
			 (3-28-23)
(81) Salt cake mix tanks
			 at pulp mills. (3-28-23)
(82)
			 Digester chip feeders at pulp mills. (3-28-23)
(83) Weak liquor and filter tanks at pulp
			 mills. (3-28-23)
(84) Process water
			 and white water storage tanks at pulp mills. (3-28-23)
(85) Demineralizer water tanks,
			 demineralization, demineralizer vents, and oxygen scavenging (deaeration) of
			 water. (3-28-23)
(86) Clean
			 condensate tanks. (3-28-23)
(87)
			 Alum tanks. (3-28-23)
(88) Broke
			 beaters, repulpers, pulp and repulping tanks, stock chests and pulp handling.
			 (3-28-23)
(89) Lime and mud
			 filtrate tanks. (3-28-23)
(90)
			 Hydrogen peroxide tanks. (3-28-23)
(91) Lime mud washer. (3-28-23)
(92) Lime mud filter. (3-28-23)
(93) Hydro and liquor clarifiers or filters
			 and storage tanks and associated pumping, piping, and handling.
			 (3-28-23)
(94) Lime grits washers,
			 filters, and handing. (3-28-23)
(95) Lime silos and feed bins.
			 (3-28-23)
(96) Paper forming.
			 (3-28-23)
(97) Starch cooking.
			 (3-28-23)
(98) Pulp stock cleaning
			 and screening. (3-28-23)
(99) Paper
			 winders or other paper converting equipment. (3-28-23)
(100) Sludge dewatering and wet sludge
			 handling. (3-28-23)
(101) Screw
			 press vents. (3-28-23)
(102) Pond
			 dredging. (3-28-23)
(103) Polymer
			 tanks and storage devices and associated pumping and handling equipment, used
			 for solids dewatering and flocculation. (3-28-23)
(104) Non-PCB oil filled circuit breakers,
			 oil filled transformers and other equipment that is analogous to, but not
			 considered to be, a tank. (3-28-23)
(105) Lab-scale electric or steam-heated
			 drying ovens and autoclaves. (3-28-23)
(106) Sewer manholes, junction boxes, sumps
			 and lift stations associated with wastewater treatment systems.
			 (3-28-23)
(107) Water cooling
			 towers processing exclusively noncontact cooling water. (3-28-23)
(108) Paper coating and sizing.
			 (3-28-23)
(109) Process wastewater
			 and ponds. (3-28-23)
(110) Outdoor
			 firearms practice ranges. (3-28-23)