Alabama Administrative Code › Title 335 - ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT › AIR DIVISION - AIR POLLUTION CONTROL PROGRAM › Chapter 335-3-6 - CONTROL OF ORGANIC EMISSIONS › Section 335-3-6-.26 - Loading And Storage Of VOC

Current through Register Vol. 42, No. 9, June 28, 2024
(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; and
2. 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.