Code of Maine Rules › 06 - DEPARTMENT OF ENVIRONMENTAL PROTECTION › 096 - DEPARTMENT OF ENVIRONMENTAL PROTECTION - GENERAL › Chapter 170 - DEGASSING OF PETROLEUM STORAGE TANKS, MARINE VESSELS, AND TRANSPORT VESSELS › Section 096-170-3 - Definitions

Current through 2024-29, July 17, 2024
As used in this Chapter, unless otherwise indicated, the
				  following terms have the listed meanings.
A.
Affected product.
"Affected
				product" means gasoline, aviation gasoline, ethanol, and crude oil. For the
				purposes of this Chapter, propane or compressed gases, residual fuel oils, and
				distillate fuel oils are not considered affected products.
B.
Degassing or Degassing event.
"Degassing" or "Degassing event" means the process of removing organic vapors
				from a petroleum storage tank, transport vessel, or marine vessel cargo tank
				during or in preparation for human entry, cleaning, and/or maintenance
				activity.
C.
Liquid
				leak.
"Liquid leak" means the visible dripping of an affected
				product.
D.
Marine
				vessel.
"Marine vessel" means any watercraft, including oil tankers and
				barges, used as a means of transportation to carry affected products over
				water.
E.
Marine vessel cargo
				tank.
"Marine vessel cargo tank" means a liquid-tight shell designed to
				contain the cargo.
F.
Petroleum storage facility.
"Petroleum storage facility" means a
				storage facility that receives affected products from refineries or other
				storage locations primarily by pipeline or marine vessel and delivers those
				products to refineries, other storage facilities, bulk plants, or to commercial
				or retail accounts by pipeline, marine vessel, or transport vessel. For the
				purposes of this Chapter, a petroleum storage facility does not include
				aboveground petroleum storage tanks located at industrial manufacturing or
				electrical generating facilities.
G.
Petroleum storage tank.
"Petroleum storage tank" means an aboveground container which is used for the
				storage of affected products.
H.
Transport vessel.
"Transport vessel" means any land-based mode of
				transportation (truck or rail) equipped with a storage tank that is used to
				transport affected products. Vessels used exclusively for maintenance and spill
				response are not considered to be transport vessels.
I.
Vapor control system.
"Vapor
				control system" means the equipment and systems used to reduce volatile organic
				compound emissions from a degassing event conducted on petroleum storage tanks,
				marine vessel cargo tanks, and transport vessels.
J.
Vapor leak.
"Vapor leak"
				means a failure of containment that results in the presence of gaseous volatile
				organic compounds at or above 500 parts per million by volume (ppmv) measured
				as methane above background on a portable hydrocarbon analyzer, in accordance
				with 40 C.F.R. Part 60, Appendix A, Method 21 as amended 10/17/2000.
K.
Vapor tight condition.
"Vapor
				tight condition" means the condition that exists when the reading on a portable
				hydrocarbon analyzer is less than 500 parts per million by volume (ppmv),
				measured as methane above background, in accordance with 40 C.F.R. Part 60,
				Appendix A, Method 21 as amended 10/17/2000.