Hawaii Administrative Rules › Title 11 - DEPARTMENT OF HEALTH › Subtitle 1 - GENERAL DEPARTMENTAL PROVISIONS › Chapter 265.1 - HAZARDOUS WASTE MANAGEMENT: INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES › Part 265 - INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES › Subpart CC - Air Emission Standards for Tanks, Surface Impoundments, and Containers › Section 11-265.1081 - Definitions

Current through June, 2024
As used in this subpart, all terms not defined herein
						shall have the meaning given to them in the Act and parts 260 through 266 of
						this chapter.
Average volatile organic concentration
or
average VO concentration
means the mass-weighted average
						volatile organic concentration of a hazardous waste as determined in accordance
						with the requirements of § 265.1084 of this subpart.
Closure device
means a cap, hatch, lid,
						plug, seal, valve, or other type of fitting that blocks an opening in a cover
						such that when the device is secured in the closed position it prevents or
						reduces air pollutant emissions to the atmosphere. Closure devices include
						devices that are detachable from the cover (e.g., a sampling port cap),
						manually operated (e.g., a hinged access lid or hatch), or automatically
						operated (e.g., a spring-loaded pressure relief valve).
Continuous seal
means a seal that forms
						a continuous closure that completely covers the space between the edge of the
						floating roof and the wall of a tank. A continuous seal may be a vapor-mounted
						seal, liquid-mounted seal, or metallic shoe seal. A continuous seal may be
						constructed of fastened segments so as to form a continuous seal.
Cover
means a device that provides a
						continuous barrier over the hazardous waste managed in a unit to prevent or
						reduce air pollutant emissions to the atmosphere. A cover may have openings
						(such as access hatches, sampling ports, gauge wells) that are necessary for
						operation, inspection, maintenance, and repair of the unit on which the cover
						is used. A cover may be a separate piece of equipment which can be detached and
						removed from the unit or a cover may be formed by structural features
						permanently integrated into the design of the unit.
Enclosure
means a structure that
						surrounds a tank or container, captures organic vapors emitted from the tank or
						container, and vents the captured vapors through a closed-vent system to a
						control device.
External floating roof
means a
						pontoon-type or double-deck type cover that rests on the surface of the
						material managed in a tank with no fixed roof.
Fixed roof
means a cover that is mounted
						on a unit in a stationary position and does not move with fluctuations in the
						level of the material managed in the unit.
Floating membrane cover
means a cover
						consisting of a synthetic flexible membrane material that rests upon and is
						supported by the hazardous waste being managed in a surface impoundment.
Floating roof
means a cover consisting
						of a double deck, pontoon single deck, or internal floating cover which rests
						upon and is supported by the material being contained, and is equipped with a
						continuous seal.
Hard-piping
means pipe or tubing that is
						manufactured and properly installed in accordance with relevant standards and
						good engineering practices.
In light material service
means the
						container is used to manage a material for which both of the following
						conditions apply: The vapor pressure of one or more of the organic constituents
						in the material is greater than 0.3 kilopascals (kPa) at 20 °C; and the
						total concentration of the pure organic constituents having a vapor pressure
						greater than 0.3 kPa at 20 °C is equal to or greater than 20 percent by
						weight.
Internal floating roof
means a cover
						that rests or floats on the material surface (but not necessarily in complete
						contact with it) inside a tank that has a fixed roof.
Liquid-mounted seal
means a foam or
						liquid-filled primary seal mounted in contact with the hazardous waste between
						the tank wall and the floating roof continuously around the circumference of
						the tank.
Malfunction
means any sudden,
						infrequent, and not reasonably preventable failure of air pollution control
						equipment, process equipment, or a process to operate in a normal or usual
						manner. Failures that are caused in part by poor maintenance or careless
						operation are not malfunctions.
Maximum organic vapor pressure
means the
						sum of the individual organic constituent partial pressures exerted by the
						material contained in a tank, at the maximum vapor pressure-causing conditions
						(i.e., temperature, agitation, pH effects of combining wastes, etc.) reasonably
						expected to occur in the tank. For the purpose of this subpart, maximum organic
						vapor pressure is determined using the procedures specified in §
						265.1084(c) of this subpart.
Metallic shoe seal
means a continuous
						seal that is constructed of metal sheets which are held vertically against the
						wall of the tank by springs, weighted levers, or other mechanisms and is
						connected to the floating roof by braces or other means. A flexible coated
						fabric (envelope) spans the annular space between the metal sheet and the
						floating roof.
No detectable organic emissions
means no
						escape of organics to the atmosphere as determined using the procedure
						specified in § 265.1084(d) of this subpart.
Point of waste origination
means as
						follows:
(1) When the facility owner or operator is the generator
						of the hazardous waste, the point of waste origination means the point where a
						solid waste produced by a system, process, or waste management unit is
						determined to be a hazardous waste as defined in 40 CFR part 261 .
Note: In this case, this term is being used in a manner
						similar to the use of the term "point of generation" in air standards
						established for waste management operations under authority of the Clean Air
						Act in 40 CFR parts 60, 61, and 63.]
(2) When the facility owner and operator are not the
						generator of the hazardous waste, point of waste origination means the point
						where the owner or operator accepts delivery or takes possession of the
						hazardous waste.
Point of waste treatment
means the point
						where a hazardous waste to be treated in accordance with § 265.1083(c)(2)
						of this subpart exits the treatment process. Any waste determination shall be
						made before the waste is conveyed, handled, or otherwise managed in a manner
						that allows the waste to volatilize to the atmosphere.
Safety device
means a closure device
						such as a pressure relief valve, frangible disc, fusible plug, or any other
						type of device which functions exclusively to prevent physical damage or
						permanent deformation to a unit or its air emission control equipment by
						venting gases or vapors directly to the atmosphere during unsafe conditions
						resulting from an unplanned, accidental, or emergency event. For the purpose of
						this subpart, a safety device is not used for routine venting of gases or
						vapors from the vapor headspace underneath a cover such as during filling of
						the unit or to adjust the pressure in this vapor headspace in response to
						normal daily diurnal ambient temperature fluctuations. A safety device is
						designed to remain in a closed position during normal operations and open only
						when the internal pressure, or another relevant parameter, exceeds the device
						threshold setting applicable to the air emission control equipment as
						determined by the owner or operator based on manufacturer recommendations,
						applicable regulations, fire protection and prevention codes, standard
						engineering codes and practices, or other requirements for the safe handling of
						flammable, ignitable, explosive, reactive, or hazardous materials.
Single-seal system
means a floating roof
						having one continuous seal. This seal may be vapor-mounted, liquid-mounted, or
						a metallic shoe seal.
Vapor-mounted seal
means a continuous
						seal that is mounted such that there is a vapor space between the hazardous
						waste in the unit and the bottom of the seal.
Volatile organic concentration
or
VO concentration
means the fraction by weight of the volatile
						organic compounds contained in a hazardous waste expressed in terms of parts
						per million (ppmw) as determined by direct measurement or by knowledge of the
						waste in accordance with the requirements of § 265.1084 of this subpart.
						For the purpose of determining the VO concentration of a hazardous waste,
						organic compounds with a Henry's law constant value of at least 0.1
						mole-fraction-in-the-gas-phase/mole-fraction-in the liquid-phase (0.1 Y/X)
						(which can also be expressed as 1.8 × 10-6
						atmospheres/gram-mole/m3) at 25 degrees Celsius must
						be included. Appendix VI of this subpart presents a list of compounds known to
						have a Henry's law constant value less than the cutoff level.
Waste determination
means performing all
						applicable procedures in accordance with the requirements of § 265.1084 of
						this subpart to determine whether a hazardous waste meets standards specified
						in this subpart. Examples of a waste determination include performing the
						procedures in accordance with the requirements of § 265.1084 of this
						subpart to determine the average VO concentration of a hazardous waste at the
						point of waste origination; the average VO concentration of a hazardous waste
						at the point of waste treatment and comparing the results to the exit
						concentration limit specified for the process used to treat the hazardous
						waste; the organic reduction efficiency and the organic biodegradation
						efficiency for a biological process used to treat a hazardous waste and
						comparing the results to the applicable standards; or the maximum volatile
						organic vapor pressure for a hazardous waste in a tank and comparing the
						results to the applicable standards.
Waste stabilization process
means any
						physical or chemical process used to either reduce the mobility of hazardous
						constituents in a hazardous waste or eliminate free liquids as determined by
						Test Method 9095B (Paint Filter Liquids Test) in "Test Methods for Evaluating
						Solid Waste, Physical/Chemical Methods," EPA Publication SW-846, as
						incorporated by reference in § 260.11. A waste stabilization process
						includes mixing the hazardous waste with binders or other materials, and curing
						the resulting hazardous waste and binder mixture. Other synonymous terms used
						to refer to this process are "waste fixation" or "waste solidification." This
						does not include the adding of absorbent materials to the surface of a waste,
						without mixing, agitation, or subsequent curing, to absorb free liquid.