Regulatory Text:
Section 5. PROVISIONS FOR SPECIFIC PROCESSES

(Approved by EPA 01/29/80 (45 FR 06569) at 52.170(c)(7) effective 01/29/80. Revisions approved by EPA 08/27/81 (46 FR 43146) at 52.170(c)(12) effective 09/28/91 and 10/13/81 (46 FR 50370) effective 12/14/81 and 02/08/83 (48 FR 05722) at 52.170(c)(21) effective 04/11/83.)

 
5.1 Gasoline Storage and Marketing

   (a) No person shall cause or permit the loading of gasoline into a storage tank of a gasoline storage or marketing facility with a monthly throughput in excess of 10,000 gallons except through a submerged fill pipe or by bottom loading. This provision shall not apply to storage tanks of less than 4,000 liter capacity (approximately 1,000 gallons).  

   (b) No person shall cause or permit the operation of a gasoline bulk facility of less than 87,000 liters (23,000 gallons) per day throughput unless all gasoline delivery vessels are loaded by submerged fill pipe or bottom filling.

   (c) No person shall cause or permit the operation of a gasoline bulk facility having a daily throughput equal to greater than 87,000 liters (23,000 gallons) per day unless a vapor control system is in place, is properly maintained and is used to prevent gasoline vapors from being emitted into the atmosphere at a rate in excess of 80 milligrams per liter of gasoline loaded (4.7 grains per gallon).

5.2 Petroleum Liquid Storage

   (a) No person shall cause or permit the storage of volatile organic compounds having a true vapor pressure in excess of 10.5 kilo Pascals (1.52 psia) in tanks having a capacity equal to or greater than 150,000 liters (approximately 39,000 gallons) unless such tanks:

     (1) meet the equipment specifications and maintenance requirements of the federal Standards of Performance for New Stationary Sources--Storage Vessels for Petroleum Liquids, 40 CFR 60.110, as amended by proposed rule change, Federal Register, May 18, 1978, pages 21617 through 21625; or

     (2) are retrofitted with a floating roof or internal floating cover using a non-metallic resilient seal as a primary seal which meets the equipment specifications in the federal standards referred to in (1) above, or its equivalent, or

     (3) have a covered floating roof or internal floating cover which is maintained in effective working order and which meets the manufacturer's equipment specifications in effect at the time it was installed.

   (b) All seals necessary to meet the requirements of (a)(2) and (3) of this subsection are to be maintained in good operating  condition.

   (c) All openings, except stub drains and those related to safety, are to be sealed with suitable closures when not in use.

5.3 Cutback Asphalt

   No person shall mix, use or apply cutback asphalt for roadway  paving except where the cutback asphalt is used solely as a penetrating prime coat or when the maximum ambient temperature on the day of application is less than 15 C (59 F).

5.4 Gasoline Tank Trucks and Vapor Collection Systems

   (a) No person shall allow a gasoline tank truck subject to this regulation to be filled or emptied unless the gasoline tank truck:

     (1) is tested on a schedule acceptable to the Director according to the test procedure referenced in Subsection 4.6(c);  
     (2) sustains a pressure change of no more than 750 pascals (3 in. of H2O) in five minutes when pressurized to a gauge pressure of 4,500 pascals (18 in. of H2O) or evacuated to a gauge pressure of 1,500 pascals (6 in. of H2O) during the testing required in Subparagraph (a)(1) of this section; and  

     (3) is repaired by the owner or operator and retested within 15 days of testing if it does not meet the criteria of  subparagraph (a)(2) of this section.

   (b) The owner or operator of a vapor collection system subject to this regulation shall:

     (1) design and operate the vapor collection system and the gasoline loading equipment in a manner that prevents:

       (i) gauge pressure from exceeding 4,500 pascals (18 in. of H2O) and vacuum from exceeding 1,500 pascals (6 in. of H2O) in the gasoline tank truck;

       (ii) a reading equal to or greater than 100 percent of the lower explosive limit (LEL, measured as propane) at 2.5 centimeters from all points on the perimeter of a potential leak source when measured by the method referenced in Subsection 4.6(c) during loading or unloading operations at gasoline dispensing  facilities, bulk plants and bulk terminals;  

       (iii) avoidable visible liquid leaks during loading or unloading operations at gasoline dispensing facilities, bulk plants and bulk terminals, and

     (2) within 15 days, repair and retest a vapor collection or control system that exceeds the limit in Subparagraphs (b)(1)(ii) of this section.

   (c) The Director may, at any time, monitor a gasoline tank truck, vapor collection system, or vapor control system by the method referenced in Subsection 4.6(c) to confirm continuing compliance with paragraphs (a) or (b) of this section.

5.5 Surface Coating Miscellaneous Metal Parts

   (a) No owner or operator of a major source engaged in the surface coating of miscellaneous metal parts and products may  operate a coating application system subject to this regulation that emits VOC in excess of:

     (1) 0.52 kg/l (4.3 lb/gal) of coating, excluding water, delivered to a coating applicator that applies clear coatings;

     (2) 0.42 kg/l (3.5 lb/gal) of coating, excluding water, delivered to a coating applicator in a coating application system that utilizes air or forced air dryers;

     (3) 0.42 kg/l (3.5 lb/gal) of coating, excluding water, delivered to a coating applicator that applies extreme performance coatings; and

     (4) 0.36 kg/l (3.0 lb/gal) of coating, excluding water, delivered to a coating applicator for all other coatings and coating application systems.

     (5) The above emission limitations shall include all VOC emissions from both coating and solvent washing unless the solvent is directed into containers that prevent evaporation.

   (b) If more than one emission limitation in paragraph (a) applies to a specific coating, then the least stringent emission limitation shall be applied.

   (c) The emission limits set forth in paragraph (a) shall be achieved by:

     (1) the application of low solvent coating technology;

     (2) an incineration system which oxidizes at least 90.0 percent of the non-methane volatile organic compounds (VOC) measured as total combustible carbon to carbon dioxide and water; or

     (3) an equivalent means of VOC removal. The equivalent means must be certified by the owner or operator and approved by the Director.  
   (d) A capture system must be used in conjunction with the emission control system in parts (c)(2) and (c)(3). The design and operation of a capture system must be consistent with good engineering practice, and shall be required to provide for an  overall VOC emission reduction efficiency of at least 80 percent.

5.6 External Floating Roof  

   (a) No person shall cause or permit the storage of volatile organic compounds having a true vapor pressure in excess of 10.5 kilo pascals (1.52 psia) in tanks having a capacity equal to or greater than 150,000 liters (approximately 39,000 gallons) equipped with an external floating roof unless:

     (1) The storage tank has been fitted with a continuous secondary seal extending from the floating roof to the tank wall (rim mounted) or an equivalent control device with an effectiveness equal to or greater than the secondary seal;

     (2) All seal closure devices meet the following requirements:

       (i) There shall be no visible holes, tears, or other openings in the seals or seals fabric;

       (ii) The seals must be intact and uniformly in place around the circumference of the floating roof between the floating roof and the tank walls;

       (iii) For vapor mounted seals, the gap area exceeding 0.32 cm (1/8 inch) in width between the secondary seal and the tank wall shall not exceed 6.5 cm^2 per 0.3 m of tank  diameter (1.0 inch^2 per foot of tank diameter).

     (3) All openings in the external floating roof except for automatic bleeder vents, rim space vents and leg sleeves provide a projection below the liquid surface and are sealed with a suitable closure when not in use;

     (4) Automatic bleeder vents are closed at all times  except when the roof is floated off or landed on the roof leg  supports;  

     (5) Rim vents are set to open only when the roof is being floated off the leg supports or at the manufacturer's recommended settings; and

     (6) Emergency roof drains are provided with slotted  membrane fabric covers or equivalent covers which cover at least 90 percent of the area of the opening.

   (b) The following are specifically exempted from the requirements of this subsection:

     (1) External floating roof tanks having capacities less than 1,600,000 liters (10,000 bbls) used to store produced crude oil and condensate prior to custody transfer;

     (2) A metallic-type shoe seal in a welded tank which has a secondary seal from the top of the shoe to the tank wall (a shoe-mounted secondary);

     (3) External floating roof tanks storing waxy, heavy pour crudes.