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You are here: Home / Permitting / Air Permits / PermitByRule / Historical Rules / oldselist / Standard Exemptions for Sept. 82 / Outdated Standard Exemptions 108-115, September 23, 1982

Outdated Standard Exemptions 108-115, September 23, 1982

Outdated Title 30 TAC 116 Standard Exemptions organized by exemption number and date.

Exemption

Clicking on a highlighted number below links you to the standard exemption.

108 | 109 | 110 | 111 | 112 | 113 | 114 | 115

108. All bulk mineral product (except asbestos) handling facilities that operate according to the following conditions:

  1. All material must be transported in a closed conveying system and all exhaust air to the atmosphere is vented through a fabric filter having a maximum filtering velocity of 4 ft/min with mechanical cleaning or 7 ft/min with air cleaning.
  2. All abatement equipment must be in good condition and operating properly during plant operations.
  3. All permanent in-plant roads shall be paved and cleaned as necessary to prevent the emission of dust to the minimum level possible under existing conditions.
  4. Before construction begins, written site approval must be received from the Executive Director of the Texas Air Control Board.
  5. Before construction begins the facility shall be registered with Form PI-7.

109. All oil well servicing bulk sand handling facilities that operate according to the following conditions:

  1. All sand is prewashed.
  2. All handling of sand is mechanical or if sand is conveyed pneumatically, the conveying air is vented to the atmosphere through a fabric filter(s) having a maximum filtering velocity of 4.0 ft/minute with mechanical cleaning or 7 ft/min with air cleaning.
  3. All permanent in-plant roads shall be paved and cleaned as necessary to prevent the emission of dust to the minimum level possible under existing conditions.
  4. All abatement equipment must be in good condition and operating properly during plant operations.
  5. Before construction begins, written site approval must be received from the Executive Director of the Texas Air Control Board.
  6. Before construction begins the facility shall be registered with Form PI-7.

110. Any portable concrete plant that accomplishes wet batching, dry batching or central mixing and operates according to the following conditions:

  1. A fabric filter(s) with a maximum filtering velocity of 4.0 feet per minute is installed on the cement silo or the silo is vented to the central collection system specified in condition (6).
  2. The cement weight hopper is vented to a fabric filter or inside the charging hopper of the transit mix truck if controlled by a suction shroud.
  3. A visible and/or audible warning mechanism is installed on the silo for warning operators that the silo is full so that it will not be overloaded at any time.
  4. All in-plant roads and area between stockpiles and conveyor hopper shall be watered, oiled or paved and cleaned as necessary to prevent the emission of dust to the minimum level possible under existing conditions. Control method is a factor in site approval.
  5. All stockpiles are sprinkled with water and/or chemicals as necessary to control the emission of dust from wind erosion and materials handling to the minimum level possible under existing conditions.
6. A. Loading of rotary mix trucks at wet batch plants shall be through a discharge spout equipped with a water ring that adequately controls dust emissions or a suction shroud which is vented to a central collection system with a minimum of 4,000 acfm of air to a fabric filter with air cleaning and a 7.0 ft/min maximum filtering velocity or automatic sequenced mechanical cleaning and a 5.0 ft/min maximum filtering velocity. Control method is a factor in site approval.
B. Dust emissions from the loading of open-bodied trucks at the batch drop point of dry batch plants or dust emissions from the drum feed for central mix plants shall be controlled by a suction shroud which is vented to a central collection system with a minimum of 4,000 acfm of air to a fabric filter with air cleaning and a 7.0 ft/min maximum filtering velocity or automatic sequenced mechanical cleaning and a 5.0 ft/min maximum filtering velocity. Suction shrouds on dry batch plants shall be utilized so as to allow for closure over the receiving vehicle compartment or bed.
7. Spillage of cement and fly ash used in the batch shall be immediately cleaned up and contained or dampened such that excessive dust emissions do not occur from wind erosion and/or vehicle traffic.
8. All open-bodied vehicles transporting materials from a dry batch plant to paving mixer(s) shall be loaded with a final layer of wet sand and/or the truck shall be covered with a tarp to control the emissions of dust to the minimum level possible under existing conditions.
9. All abatement equipment shall be maintained in good condition and operating properly during plant operations.
10. The plant is located at least 300 feet from any recreational area or residence or other structure not occupied or used solely by the owner of the property upon which the facility is located. This does not apply to plants that are set up specifically to pour concrete for a particular construction project and the site is on or adjacent to the construction site.
11. Before construction of the facility begins, written site approval must be received from the Executive Director of the Texas Air Control Board.
12. Before construction begins the facility shall be registered with the appropriate Regional Office using Form PI-7 including a current Table 20.
13. The appropriate Regional Office and local program shall be notified within 10 days after the date of the actual start of operation.

111. Any soil stabilization plant that operates according to the following conditions:

  1. A fabric filter(s) with a maximum filtering velocity of 4.0 feet per minute shall be installed on the storage silo.
  2. All conveyor belt(s) transferring material to the pug mill shall be top covered.
  3. The pug mill used to mix the materials shall be covered.
  4. All permanent in-plant roads shall be watered, oiled or paved and cleaned as necessary to prevent the emission of dust to the minimum level possible under existing conditions.
  5. All abatement equipment shall be maintained in good condition and operating properly during plant operations.
  6. A mechanism is installed on the storage silo(s) for warning operators that the silo is full, so it is not overloaded at any time.
  7. Aggregate stockpiles are sprinkled with water and/or chemicals as necessary to control the emission of dust to the minimum level possible under existing conditions.
  8. Before construction of the facility begins, written site approval shall be received from the Executive Director of the Texas Air Control Board.
  9. The plant is located at least 300 feet from any recreational area or residence or other structure not occupied or used solely by the owner of the property upon which the facility is located. This does not apply to plants that are set up specifically to pour material for a particular construction project and the site is on or adjacent to the construction site.
  10. Before construction begins the facility shall be registered with Form PI-7.

112. Uranium in situ solution mining facility producing yellowcake provided that:

  1. The facility is located at least 1/4 mile from any recreational area or residence or other structure not occupied or used solely by the owner of the facility or the owner of the property upon which the facility is located.
  2. The facility shall have no emission other than (a) ammonia which shall not exceed an emission rate of 7 pounds per hour and (b) particulate dust from yellowcake drying not to exceed 0.1 pound per hour.
  3. The facility shall have no visible particulate emissions from any part of the process.
  4. Before construction begins the facility must be registered with Form PI-7.

113. Dry hearth reverberatory type holding chamber aluminum or copper metal reclamation/sweat furnaces in which no fluxing, degassing or refining is conducted that operates according to the following conditions and limitations:

  1. Scrap metal charges shall consist primarily of copper or aluminum metal. Operation of the furnace for reclamation or lead, tin, zinc or magnesium metals is prohibited.
  2. The maximum furnace charging rate shall be 2000 pounds per hour or less.
  3. The furnace charge door shall remain closed except during charging and furnace cleaning operations.
  4. The furnace shall be equipped with an afterburner which will provide a minimum retention time of 0.1 second at a minimum temperature of 1300 degrees F for all furnace exhaust gases.
  5. The incineration of any insulated wire or cable containing chlorine compounds in the insulation, such as Polyvinyl chloride insulation, is expressly prohibited.
  6. The owner or operator of the furnace shall initiate and maintain a program of furnace operator training in the recognition of chlorine-bearing wire or cable insulation and shall demonstrate upon request by the Executive Director, acceptable proficiency in the recognition of chlorine-bearing wire or cable insulation, such as Polyvinyl Chloride insulation.
  7. Fuel for the furnace shall be sweet natural gas as defined in General rules adopted by the Texas Air Control Board or liquid petroleum gas, diesel or No. 2 fuel oil.
  8. Before construction begins the facility must be registered with Form PI-7.

114. Any trench burner that operates according to the following conditions:

  1. Opacity of emissions from the trench burner must not exceed 20%, average over a five-minute period except for a start-up period which shall not exceed 20 minutes. Opacity shall be measured as outlined in the "General Rules for Reading Opacity of Visible Emissions", Chapter 13, Compliance Sampling Manual, as revised and published in October 1975 or as amended, by the Texas Air Control Board. The average of the length and width of the trench shall be considered as one stack diameter.
  2. Material to be burned in the pit is limited to trees, brush and untreated waste lumber.
  3. The plant is located at least 1/4 mile from any recreational area or residence or other structure not occupied or used solely by the owner of the facility or the owner of the property upon which the facility is located.
  4. Trench burner operating instructions shall be established and posted such that they are available for all trench burner operators.
  5. Before operation of the facility begins at any site, written site approval must be received from the Executive Director of the Texas Air Control Board.
  6. The trench shall be closed and filled upon leaving the site.
  7. Before construction begins the facility must be registered with Form PI-7.
115. Fiberglass reinforced plastics manufacturing facilities using gel coat and/or resins containing styrene which meet the following conditions:
  1. All building air and exhaust air from spray booths is discharged to the atmosphere through vertical exhaust stacks with a physical height at least two (2) times the height of the plant building.
  2. Overspray from spraying operations is controlled by filters.
  3. Before construction begins the facility must be registered with Form PI-7.


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