Indiana Administrative Code
Title 326 - AIR POLLUTION CONTROL DIVISION
Article 8 - VOLATILE ORGANIC COMPOUND RULES
Rule 9 - Volatile Organic Liquid Storage Vessels
Section 9-3 - Definitions

Universal Citation: 326 IN Admin Code 9-3

Current through March 20, 2024

Authority: IC 13-14-8; IC 13-17-3-4

Affected: IC 13-17

Sec. 3.

The following definitions apply throughout this rule:

(1) "Condensate" means hydrocarbon liquid separated from natural gas that condenses due to changes in the temperature or pressure, or both, and remains liquid at standard conditions.

(2) "Custody transfer" means the transfer of produced petroleum and condensate, or both, after processing or treatment, or both, in the producing operations, from storage vessels or automatic transfer facilities to pipelines or any other forms of transportation.

(3) "Fill" means the introduction of VOL into a storage vessel but not necessarily to complete capacity.

(4) "Gasoline service station" means any site where gasoline is dispensed to motor vehicle fuel tanks from stationary storage vessels.

(5) "Maximum true vapor pressure" means the equilibrium partial pressure exerted by a VOL.

(6) "Petroleum" means the crude oil removed from the earth and the oils derived from tar sands, shale, and coal.

(7) "Petroleum liquids" means petroleum, condensate, and any finished or intermediate products manufactured in a petroleum refinery.

(8) "Seal gap" means the gap areas and maximum gap widths between the:

(A) primary seal and the wall of the vessel; and

(B) secondary seal and the wall of the vessel.

(9) "Vessel" means each tank, reservoir, or container used for the storage of VOLs but does not include either of the following:

(A) Frames, housing, auxiliary supports, or other components that are not directly involved in the containment of liquids or vapors.

(B) Subsurface caverns or porous rock reservoirs.

(10) "Volatile organic liquid" or "VOL" means any organic liquid that can emit volatile organic compounds (VOCs) into the atmosphere except those VOLs that emit only those compounds that do not contribute appreciably to the formation of ozone, as defined in 326 IAC 1-2-90.

(11) "Waste" means any liquid resulting from industrial, commercial, mining, or agricultural operations, or from community activities that is discarded or is being accumulated, stored, or physically, chemically, or biologically treated prior to being discarded or recycled.

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