Table 1. Insignificant Activities List |
A. Based on Size or Emission Rate Permit applications submitted under Subsection A of this Section for sources that include any of the following emissions units, operations, or activities must either list them as insignificant activities or provide the information for emissions units as specified under LAC 33:III.517: |
1. external combustion equipment with a design rate greater than or equal to 1 million btu per hour, but less than or equal to 10 million btu per hour, provided that the aggregate criteria pollutant emissions from all such units listed as insignificant do not exceed 5 tons per year; |
2. storage tanks less than 250 gallons storing organic liquids having a true vapor pressure less than or equal to 3.5 psia, provided that the aggregate emissions from all such organic liquid storage tanks listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established pursuant to Section 112(g) of the federal Clean Air Act; |
3. storage tanks less than 10,000 gallons storing organic liquids having a true vapor pressure less than 0.5 psia, provided that the aggregate emissions from all such organic liquid storage tanks listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any Minimum Emission Rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established pursuant to Section 112(g) of the federal Clean Air Act; |
4. emissions of any inorganic air pollutant that is not a regulated air pollutant as defined under LAC 33:III.502, provided that the aggregate emissions from all such pollutants listed as insignificant do not exceed 5 tons per year; |
5. external combustion equipment with a design rate less than 1 million Btu per hour; |
6. emissions from laboratory equipment/vents used exclusively for routine chemical or physical analysis for quality control or environmental monitoring purposes, provided that the aggregate emissions from all such equipment vents considered insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established in accordance with Section 112(g) of the federal Clean Air Act; |
7. noncommercial water washing operations of empty drums less than or equal to 55 gallons with less than 3 percent of the maximum container volume of material; |
8. portable fuel tanks used on a temporary basis in maintenance and construction activities, provided that the aggregate criteria or toxic air pollutant emissions from all such tanks listed as insignificant do not exceed 5 tons per year; |
9. emissions from process stream or process vent analyzers, provided that the aggregate emissions from all such analyzers listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established in accordance with Section 112(g) of the federal Clean Air Act; |
10. storage tanks containing, exclusively, soaps, detergents, surfactants, waxes, glycerin, vegetable oils, greases, animal fats, sweetener, molasses, corn syrup, aqueous salt solutions, or aqueous caustic solutions, provided an organic solvent has not been mixed with such materials, the tanks are not subject to 40 CFR 60, Subpart Kb or other federal regulation, and the aggregate emissions from all such tanks listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established in accordance with Section 112(g) of the federal Clean Air Act; |
11. catalyst charging operations, provided that the aggregate emissions from all such operations listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established in accordance with Section 112(g) of the federal Clean Air Act; and |
12. portable cooling towers used on a temporary basis in maintenance activities, provided the aggregate emissions from all such cooling towers listed as insignificant do not exceed 5 tons per year of criteria or toxic air pollutants, do not exceed any minimum emission rate listed in LAC 33:III.5112, Table 51.1, and do not exceed any hazardous air pollutant de minimis rate established in accordance with Section 112(g) of the federal Clean Air Act. |
B. Based on Activity The following activities need not be included in a permit application: |
1. activities which occur strictly for maintenance of grounds or buildings, including: lawn care, weed control, pest control, grinding, cutting, welding, woodworking, general repairs, janitorial activities, steam cleaning, and water washing activities; |
2. surface-coating of equipment during miscellaneous maintenance and construction activities, including spray painting, roll-coating and painting with aerosol spray cans, provided no paint or coating exceeds a maximum 3.5 lb/gal organic toxic air pollutant listed in LAC 33:III.5112, Table 51.1 or 51.3, and no paint or coating exceeds any limitations listed in LAC 33:III.2123. This activity specifically does not include any facility whose primary business activity is surface-coating or includes surface-coating of products; |
3. miscellaneous equipment maintenance or construction unless otherwise regulated by state or federal regulation, which may include, but is not limited to, such activities as: welding, steam cleaning, equipment used for hydraulic or hydrostatic testing, miscellaneous solvent use 1, miscellaneous sandblasting, sweeping, nonasbestos insulation removal, acid washing, caustic washing, water blasting, application of refractory and insulation, brazing, soldering, the use of adhesives, grinding, and cutting; |
4. vehicle refueling emissions from cars, trucks, forklifts, courier vehicles, front-loaders, graders, cranes, carts, maintenance trucks, locomotives, helicopters, marine vessels, and other self-propelled on-road and nonroad mobile sources. This exemption does not cover loading racks or fueling operations covered by LAC 33:III.Chapter 21; |
5. office activities such as photocopying, blueprint copying, and photographic processes; |
6. site assessment work to characterize waste disposal or remediation sites; |
7. operation of groundwater remediation wells, including emissions from the pumps and collection activities. This does not include emissions from air-stripping or storage; |
8. emissions from storage or use of water-treating chemicals, except for toxic air pollutants as listed in LAC 33:III.5112, Table 51.1 or 51.3, or pollutants listed under regulations promulgated pursuant to Section 112(r) of the federal Clean Air Act, for use in cooling towers, drinking water systems, and boilerwater/feedwater systems; |
9. miscellaneous additions or upgrades of instrumentation or control systems; |
10. emissions from food preparation at restaurants, cafeterias, and facilities where food is consumed on-site; |
11. emissions from air contaminant detectors, air contaminant recorders, combustion controllers, or combustion shutoff devices; |
12. buildings, cabinets, and facilities used for storage of chemicals in closed containers, unless subject to any federally applicable requirement as defined under LAC 33:III.503 or any requirement under LAC 33:III; |
13. use of products for the purpose of maintaining motor vehicles operated by the facility, not including air conditioning units of such vehicles (i.e., antifreeze, fuel additives); |
14. reserved; |
15. stacks or vents to prevent escape of sanitary sewer gases through plumbing traps; |
16. emissions from equipment lubricating systems (i.e., oil mist) not to include storage tanks unless exempt elsewhere in this Section; |
17. air conditioning or comfort ventilation systems not regulated under Title VI of the federal Clean Air Act; |
18. residential wood heaters, cookstoves, or fireplaces; |
19. recreational fireplaces; |
20. log wetting areas; |
21. log flumes; |
22. instrument air systems, excluding fuel-fired compressors; |
23. paved parking lots; |
24. air vents from air compressors; |
25. periodic use of air for cleanup; |
26. solid waste dumpsters; |
27. emissions of wet lime mud from lime mud mix tanks, lime mud washers, lime mud piles, lime mud filter and filtrate tanks, and lime mud slurry tanks; |
28. emissions from pneumatic starters on reciprocating engines, turbines, or other equipment; |
29. emissions from natural gas odoring activities unless the permitting authority determines that a nuisance may occur; |
30. emissions from engine crackcase vents; |
31. storage tanks used for the temporary containment of materials resulting from an emergency response to an unanticipated release of pulping liquor; |
32. generators, boilers, or other fuel burning equipment that is of equal or smaller capacity than the primary operating unit, that cannot be used in conjunction with the primary operating unit [except for short durations when shutting down the primary operating unit (maximum of 24 hours) and when starting up the primary operating unit until it reaches steady-state operation (maximum of 72 hours)], and that does not increase emissions of or the potential to emit any regulated air pollutant; |
33. equipment used exclusively to mill or grind coatings in roll grinding and rebuild and molding compounds where all materials charged are in paste form; |
34. 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; |
35. the storage handling and handling equipment for bark and wood residues not subject to fugitive dispersion offsite; |
36. reserved; |
37. maintenance dredging of pulp and paper mill surface impoundments and ditches containing cellulosic and cellulosic derived biosolids and inorganic materials such as lime, ash, or sand; |
38. liquid and gas sampling systems for routine pulp and paper process control instrument calibration and regulatory information. For example, pulping liquor concentration, black liquor solids, whitewater chemistry; |
39. tall oil soap storage, skimming, and loading; |
40. emissions from caustic storage tanks that contain no VOC; |
41. emissions from fire fighting training conducted in accordance with LAC 33:III.1109.D.7; |
42. emissions from oil and gas well and pipeline as defined in accordance with LAC 33:III.502; |
43. produced water treatment units (e.g., Wemco units) on crude oil and natural gas production platforms in state waters of the Gulf of Mexico that discharge produced water in accordance with an LPDES permit. These units are the final step in water treatment prior to water discharge under the LPDES permit; |
44. portable diesel fuel storage tanks used on a temporary basis in maintenance and construction activities; |
45. emergency electrical power generators used only during power outages at sites not otherwise required to have a permit under LAC 33:III.Chapter 5 and operated no more than 500 hours per year; and |
46. reserved. |
C. Based on Type of Pollutant Emissions of the following pollutants need not be included in a permit application: |
1. water vapor; |
2. oxygen; |
3. nitrogen; and |
4. hydrogen. |
D. Exemptions Based on Emissions Levels The owner or operator of any source may apply for an exemption from the permitting requirements of this Chapter for any emissions unit provided each of the following criteria are met. Activities or emissions units exempt as insignificant based on these criteria shall be included in the permit at the next renewal or permit modification, as appropriate. a. The emissions unit emits and has the potential to emit no more than 5 tons per year of any criteria or toxic air pollutant. b. The emissions unit emits and has the potential to emit less than the minimum emission rate listed in LAC 33:III.5112, Table 51.1, for each Louisiana toxic air pollutant. c. The emissions unit emits and has the potential to emit less than the de minimis rate established pursuant to Section 112(g) of the federal Clean Air Act for each hazardous air pollutant. d. No new federally enforceable limitations or permit conditions are necessary to ensure compliance with any applicable requirement. |
1 State or federal regulations may apply.
La. Admin. Code tit. 33, § III-501