Facilities, including drying or curing ovens, and hand-held or manually operated equipment, used for manufacturing, refinishing, and/or restoring wood products that meet the following requirements are permitted by rule.
  (1) If a pneumatic sawdust collection system is used, it must be followed by a filter with no visible emissions.
  (2) Waste materials shall be stored and disposed of properly. There shall be no visible emissions leaving the property.
  (3) If the total coatings, solvents, and stripping agents used exceeds six gallons per day (gpd) or one gpd of methylene chloride, the following requirements must be met:
    (A) the application area must be exhausted using forced air through a stack with an unobstructed vertical discharge above the peak of the roof line; and
    (B) in addition to the requirements of subparagraph (A) of this paragraph, if application is made by spraying, the application area must also be vented through a filter system with a minimum particulate removal efficiency of 95%.
  (4) Purchase receipts for total coatings, solvents, and stripping agents for the most recent 24 months must be kept on site and be made immediately available upon request of personnel from the agency or any other air pollution control agency having jurisdiction. If the total materials purchased exceeds 550 gallons in any one month, records of the amount of materials used per month must be kept on-site to demonstrate that total emissions do not exceed 25 tons per year in any consecutive 12 months.

Source Note: The provisions of this §106.231 adopted to be effective July 16, 1997, 22 TexReg 6448; amended to be effective September 4, 2000, 25 TexReg 8653