Ala. Admin. Code r. 335-3-6-.03

Current through Register Vol. 43, No. 1, October 31, 2024

Section 335-3-6-.03 - Loading And Storage Of VOC

(1) Rule 335-3-6-.03 shall apply to VOCs with a true vapor pressure greater than or equal to 1.5 psia under storage conditions.

(2) No person shall 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 one of the following vapor loss control devices:

(a) a permanent submerged fill pipe (storage vessels in existence prior to January 30, 1973 may employ portable submerged fill pipe).

(b) a floating roof, consisting of a pontoon type, double-deck type roof or internal floating cover, which shall rest on the surface of the liquid contents and be equipped with a closure seal or seals to close the space between the roof edge and tank wall. This control equipment shall not be permitted if the VOCs have a vapor pressure of 11.0 pounds per square inch absolute (568 mmHg) or greater under actual storage conditions. All tank gauging or sampling devices shall be airtight except when tank gauging or sampling is performed.

(c) a vapor recovery system consisting of a vapor gathering system capable of collecting the VOC vapors and gases discharged, and a vapor disposal system capable of processing such VOC vapors and gases so as to prevent their emission to the atmosphere and with all tank gauging and sampling devices gastight except when gauging or sampling is performed.

(d) other equipment or means of equal efficiency for purposes of air pollution control as may be approved by the Director.

(3) No person shall load any VOCs into any 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 equipped with a vapor collection and disposal system or its equivalent, properly installed, in good working order, or has in operation a loading system which will result in a ninety-five percent (95%) submerged fill either with a submerged fill pipe or by loading from the bottom. Where the vapor collection and disposal system is utilized, the loading arm shall be equipped with a vapor collection adaptor, pneumatic, hydraulic, or other mechanical means which will provide a vapor-tight seal between the adaptor and the hatch. A means shall be provided to prevent liquid organic compound drainage from the loading device when it is removed from the hatch of any tank, truck, or trailer. When loading is effected through means other than the hatches, all loading lines shall be equipped with fittings which make vapor-tight connections and which will close automatically when disconnected.

(4) This Rule shall not apply to crude petroleum produced, separated, treated, or stored in the field.

Authors: James W. Cooper, John E. Daniel

Ala. Admin. Code r. 335-3-6-.03

Effective Date: January 18, 1972. Amended: Effective Date: November 27, 1979, September 21, 1989.

Statutory Authority:Code of Ala. 1975, §§ 22-28-14, 22-22A-5, 22-22A-6, 22-22A-8.