(2)

(2) maintenance and upkeep: (a) maintenance, structural changes, or repairs which do not change the capacity of such process, fuel-burning, refuse-burning, or control equipment, and do not involve any change in quality, nature, or quantity of potential emissions of any regulated air pollutants; and (b) housekeeping activities or building maintenance procedures; (3) air conditioning or ventilation: comfort air conditioning or comfort ventilating systems which do not transport, remove, or exhaust regulated air pollutants to the atmosphere; (4) laboratory equipment: (a) laboratory equipment used exclusively for chemical or physical analysis for quality control or environmental monitoring purposes; or (b) non-production laboratory equipment used at non-profit health or non- profit educational institutions for chemical or physical analyses, bench scale experimentation or training, or instruction; (5) hot water heaters which are used for domestic purposes only and are not used to heat process water; (6) fuel use related to food preparation by a restaurant, cafeteria, residential cooker or barbecue grill where the products are intended for human consumption; (7) clerical activities such as operating copy machines and document printers, except operation of such units on a commercial basis; (8) hand held equipment used for buffing, polishing, carving, cutting, drilling, machining, routing, sanding, sawing, surface grinding, or turning of ceramic art work, precision parts, leather, metals, plastics, fiber board, masonry, carbon, glass, or wood; (9) equipment for washing or drying fabricated glass or metal products, if no VOCs are used in the process and no oil or solid fuel is burned; (10) water cooling towers (except at nuclear power plants); water treatment systems for process cooling water or boiler feed water; and water tanks, reservoirs, or other water containers not used in direct contact with gaseous or liquid process streams containing carbon compounds, sulfur compounds, halogens or halogen compounds, cyanide compounds, inorganic acids, or acid gases; (11) domestic sewage treatment facilities (excluding combustion or incineration equipment, land farms, storage silos for dry material, or grease trap waste handling or treatment facilities); (12) stacks or vents to prevent escape of sewer gases through plumbing traps; (13) vacuum cleaning systems for housekeeping, except at a source with hazardous air pollutants; (14) alkaline/phosphate washers and associated cleaners and burners; (15) mobile sources; (16) livestock and poultry feedlots and associated fuel burning equipment other than incinerators; (17) outdoor kerosene heaters; (18) equipment used for hydraulic or hydrostatic testing; (19) safety devices, excluding those with continuous emissions; and (20) brazing, soldering, or welding equipment that is used intermittently or in a non- continuous mode. B. The following activities/emissions sources must be listed in the application but emissions from these activities do not have to be quantified. (1) all gas fired, No. 2 oil fired, infrared, electric ovens with no emissions other than products of fuel combustion; (2) combustion units with rated input capacity less than 10 million Btu/hr that are fueled by: (a) liquefied petroleum gas or natural gas supplied by a public utility; or (b) commercial fuel oil No. 2 or lighter; (3) equipment used for inspection of metal products; (4) equipment used exclusively for forging, pressing, drawing, spinning, or extruding metals; (5) equipment used exclusively to mill or grind coatings and molding compounds where all materials charged are in paste form; (6) mixers, blenders, roll mills, or calendars for rubber or plastics for which no materials in powder form are added and in which no organic solvents, diluents, or thinners are used; (7) all storage tanks used exclusively to store fuel oils, kerosene, diesel, jet fuel, crude oil, natural gas, or liquefied petroleum gas (the application must list the size of the tank, date constructed and/or modified, type tank, and material stored); (8) space heaters utilizing natural or LPG gas and used exclusively for space heating; (9) back-up or emergency use generators, boilers or other fuel burning equipment which is of equal or smaller capacity than normal main operating equipment, cannot be used in conjunction with normal main operating equipment, and does not emit, have or cause the potential to emit of any regulated air pollutant to increase; (10) blast cleaning equipment using a suspension of abrasives in water; (11) die casting machines; (12) foundry sand mold forming equipment to which no heat is applied and from which no organics are emitted; (13) bark and wood-waste storage and handling; (14) log wetting areas; (15) log flumes; (16) sodium hydrosulfide storage tank; (17) sodium hydrosulfide storage tank; (18) spout cooling water storage; (19) effluent drains; (20) white water chest; (21) repulper vents; (22) clay storage tank; (23) alum storage tank; (24) starch storage tank; (25) steam vents and leaks; (26) de-aerator vents; (27) mill air and instrument air system; (28) demineralizer water storage tank; (29) acid storage tank; (30) process water tank; (31) air purification system vents; (32) effluent neutralizing tank/system; (33) dregs washer; (34) lime silo; (35) lime mud mix tank; (36) lime mud slurry tank; (37) H2O2 storage tank; (38) green liquor tank; and (39) tall oil storage tank. C. Notwithstanding Rule 6.7.A. and 6.7.B. above, the applicant shall include all emissions sources and quantify emissions if needed to determine major source status, to determine compliance with an applicable requirement and/or the applicability of any applicable requirement such as a NSPS, NESHAP, MACT standard, etc. as such term is defined in