Ala. Admin. Code r. 335-3-6-.26
Current through Register Vol. 43, No. 1, October 31, 2024
Section 335-3-6-.26 - Loading And Storage Of VOC(1) For the purposes of this Rule, any stationary storage tank containing a VOC with a true vapor pressure of 1.5 pounds per square inch absolute or greater (78 mmHg) under actual storage conditions shall be subject to this Rule.(2) No person shall: (a) place, store, or hold in any stationary storage vessel of more than 1,000-gallon capacity any VOC unless such vessel is a pressure tank or is equipped with a permanent submerged fill pipe or bottom fill pipe (storage vessels in existence prior to January 30, 1973 may employ portable submerged fill pipe).(b) place, store, or hold in any stationary storage vessel of more than 40,000 gallon capacity any VOC unless such vessel is equipped with one of the following vapor loss control devices, as appropriate: 1. Liquids of intermediate volatility (liquids having a true vapor pressure under actual storage conditions of greater than 1.5 psia (78 mmHg) but not greater than 11.1 psia (570 mmHg)) shall be stored in vessels equipped with a floating roof or a vapor recovery system or an equivalent control system. A floating roof may be a double-deck, or flexible single-deck, pontoon-type cover which rests upon and is supported by the stored liquid, and shall be equipped with a closure seal or seals to close the space between the roof edge and the tank wall. All tank gauging or sampling devices shall be airtight except when sampling or tank gauging is performed.2. Liquids of high volatility (liquids having a true vapor pressure under actual storage conditions of greater than 11.1 psia (570 mmHg)) shall be stored in vessels equipped with vapor recovery systems or equivalent vapor control systems. A vapor recovery system includes a system of collecting vapors and gases so as to prevent their emissions to the atmosphere. All tank gauging or sampling devices shall be airtight except when sampling or tank gauging is performed.3. Other equipment of equal efficiency for purposes of air pollution control as may be approved by the Director.(c) Load any VOCs into any gasoline tank truck or trailer having a capacity in excess of two hundred (200) gallons from any terminal or bulk storage facility unless such terminal or facility is: 1. equipped with: (i) a vapor collection system or its equivalent, properly installed, in good working order, with a loading arm equipped with a vapor collection adaptor of pneumatic, hydraulic, or other mechanical means which will provide a vapor-tight seal between the adaptor and the hatch; or(ii) a loading system which will result in a submerged fill either with a submerged fill pipe or by loading from the bottom, and with loading lines equipped with fittings which make vapor-tight connections and which will close automatically when disconnected; and2. for hatch-loading, equipped with a means to prevent liquid organic compound drainage from the loading device when it is removed from the hatch of any transport vessel or transport container.(3) This Rule shall not apply to crude petroleum produced, separated, treated, or stored in the field. Author:
Ala. Admin. Code r. 335-3-6-.26
Effective Date: June 9, 1987. Amended: Effective Date: September 21, 1989; July 31, 1991.Statutory Authority:Code of Ala. 1975, §§ 22-28-14, 22-22A-5, 22-22A-6, 22-22A-8.