Washington Administrative Code › Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508) › Chapter 173-491 - Emission standards and controls for sources emitting gasoline vapors › Section 173-491-020 - Definitions

Current through Register Vol. 24-14, July 15, 2024
The definitions of terms contained in chapter 173-400 WAC are
				by this reference incorporated into this chapter. Unless a different meaning is
				clearly required by context, the following words and phrases, as used in this
				chapter, shall have the following meanings:
(1) "Bottom loading" means the filling of a
			 tank through a line entering the bottom of the tank.
(2) "Bulk gasoline plant" means a gasoline
			 storage and transfer facility that receives more than ninety percent of its
			 annual gasoline throughput by transport tank, and reloads gasoline into
			 transport tanks.
(3) "Canister
			 capture rate" means canister effectiveness times the percent of light duty
			 vehicles that have onboard vapor recovery systems.
(4) "Canister effectiveness" means the
			 percent of refueling vapors recovered by a representative onboard vapor
			 recovery system.
(5) "Centroid"
			 means the geometric center of a gas pump or a bank of gas pumps or, if a
			 station has more than one bank of pumps, the geometric center of each bank of
			 pumps.
(6) "Certified vapor
			 recovery system" means a vapor recovery system which has been certified by the
			 department of ecology. Only Stage II vapor recovery systems with a single
			 coaxial hose can be certified. The department may certify vapor recovery
			 systems certified by the California Air Resources Board as of the effective
			 date of the regulation.
(7)
			 "Eastern Washington county" means the following counties: Adams, Asotin,
			 Benton, Chelan, Columbia, Douglas, Ferry, Franklin, Garfield, Grant, Kittitas,
			 Klickitat, Lincoln, Okanogan, Pend Oreille, Spokane, Stevens, Walla Walla,
			 Whitman, and Yakima.
(8) "Gasoline"
			 means a petroleum distillate which is a liquid at standard conditions and has a
			 true vapor pressure greater than four pounds per square inch absolute at twenty
			 degrees C, and is used as a fuel for internal combustion engines. Also any
			 liquid sold as a vehicle fuel with a true vapor pressure greater than four
			 pounds per square inch absolute at twenty degrees C shall be considered
			 "gasoline" for purpose of this regulation.
(9) "Gasoline dispensing facility" means any
			 site dispensing gasoline into motor vehicle fuel tanks from stationary storage
			 tanks.
(10) "Gasoline loading
			 terminal" means a gasoline transfer facility that receives more than ten
			 percent of its annual gasoline throughput solely or in combination by pipeline,
			 ship or barge, and loads gasoline into transport tanks.
(11) "Leak free" means a liquid leak of less
			 than four drops per minute.
(12)
			 "Modified" means any physical change in, or change in the method of operation
			 of, a gasoline dispensing facility that increases the amount of any air
			 contaminant emitted by such source or that results in the emission of any air
			 contaminant not previously emitted. The term modified shall be construed
			 consistent with the definitions of modification in Section 7411,
			 Title
			 42, United States Code, and
			 with rules implementing that section. Section 7411 exempts changes in gasoline
			 throughput not resulting directly from a physical change.
(13) "NAAQS" means the National Ambient Air
			 Quality Standard.
(14)
			 "Ozone-contributing county" means a county in which the emissions have
			 contributed to the formation of ozone in any county or area where violations of
			 federal ozone standards have been measured, and includes: Cowlitz, Island,
			 Kitsap, Lewis, Skagit, Thurston, Wahkiakum, and Whatcom counties.
(15) "Permanent residence" means a
			 single-family or multifamily dwelling, or any other facility designed for use
			 as permanent housing.
(16) "Stage
			 I" means gasoline vapor recovery during all gasoline marketing transfer
			 operations except motor vehicle refueling.
(17) "Stage II" means gasoline vapor recovery
			 during motor vehicle refueling operations from stationary tanks.
(18) "Submerged fill line" means any
			 discharge pipe or nozzle which meets either of the following conditions:
-
Where the tank is filled from the top, the end of the
							 discharge pipe or nozzle must be totally submerged when the liquid level is six
							 inches from the bottom of the tank, or;
-
Where the tank is filled from the side, the discharge
							 pipe or nozzle must be totally submerged when the liquid level is eighteen
							 inches from the bottom of the tank.
(19)
			 "Submerged loading" means the filling of a tank with a submerged fill
			 line.
(20) "Throughput" means the
			 amount of material passing through a facility.
(21) "Top off" means to attempt to dispense
			 gasoline to a motor vehicle fuel tank after a vapor recovery dispensing nozzle
			 has shut off automatically.
(22)
			 "Transport tank" means a container used for shipping gasoline over
			 roadways.
(23) "True vapor
			 pressure" means the equilibrium partial pressure of a petroleum liquid as
			 determined by methods described in American Petroleum Institute Bulletin 2517,
			 1980.
(24) "Vapor balance system"
			 means a system consisting of the transport tank, gasoline vapor transfer lines,
			 storage tank, and all tank vents designed to route displaced gasoline vapors
			 from a tank being filled with liquid gasoline.
(25) "Vapor collection system" means a closed
			 system to conduct vapors displaced from a tank being filled into the tank being
			 emptied, a vapor holding tank, or a vapor control system.
(26) "Vapor control system" means a system
			 designed and operated to reduce or limit the emission of gasoline vapors
			 emission into the ambient air.
(27)
			 "Vapor tight" means a leak of less than one hundred percent of the lower
			 explosive limit on a combustible gas detector measured at a distance of one
			 inch from the source or no visible evidence of air entrainment in the sight
			 glasses of liquid delivery hoses.
Statutory Authority:
				  RCW
				  70.94.165. 98-01-184 (Order 97-07), §
				  173-491-020, filed 12/23/97, effective 1/23/98. Statutory Authority: 1996 c
				  294. 97-04-012 (Order 95-15), § 173-491-020, filed 1/27/97, effective
				  2/27/97. Statutory Authority:
				  RCW
				     70.94.331. 93-13-011 (Order 92-47), §
				  173-491-020, filed 6/7/93, effective 7/8/93; 91-14-101 (Order 90-63), §
				  173-491-020, filed 7/2/91, effective
				  8/2/91.