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My Watershed

Dangerous Waste Annual Report Definitions

The following definitions have been prepared to assist you in understanding terms and concepts for purposes of completing Annual Report forms only. These definitions are not intended to replace or override regulatory definitions provided in Chapter 173-303-040 WAC. To understand your regulatory requirements, refer to the definitions within Chapter 173-303 WAC.

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z


Accumulation: a generator may accumulate dangerous waste for a short period of time before shipping it off-site. The waste must be accumulated in either tanks or containers. Accumulation does not constitute "storage," a dangerous waste activity that requires a permit (see Storage). The generator does not need to obtain a storage permit if he/she complies with the applicable requirements of WAC 173-303-200 and 173-303-201, as outlined below.

  • Large Quantity Generators (LQGs) may accumulate their waste for up to 90 days before shipping it off-site.
  • Medium Quantity Generators (MQGs) may accumulate their waste for up to 180 days before shipping it off-site. If the nearest treatment, storage, disposal, or recycling facility (TSDR) to which they can send their waste is more than 200 miles away, MQGs may request that Ecology grant a 90-day extension to this 180-day period.
  • Small Quantity Generators (SQGs) may accumulate dangerous waste and extremely hazardous waste without a permit and without any time limit, as long as the Quantity Exclusion Limit is never exceeded for any waste or combination of wastes.

Acutely Hazardous Waste: dangerous wastes F020, F021, F022, F023, F026, and F027, as listed in WAC 173-303-9904; and wastes identified with a dangerous waste code beginning with a "P" as listed in WAC 173-303-9903.

Authorized Representative: the person responsible for the overall operation of the facility, or an operational unit of the facility, e.g., the plant manager, superintendent, or person of equivalent responsibility.

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Batch: any waste that is generated less frequently than once a month. For example, waste from a tank that is cleaned out once every fourteen weeks would be considered a "batch."

Boiler: "Boiler" means an enclosed device using controlled flame combustion and having the following characteristics:

  • The unit must have physical provisions for recovering and exporting thermal energy in the form of steam, heated fluids, or heated gases; and
  • The unit's combustion chamber and primary energy recovery section(s) must be of integral design. To be of integral design, the combustion chamber and the primary energy recovery section(s) (such as waterwalls and superheaters) must be physically formed into one manufactured or assembled unit. A unit in which the combustion chamber and the primary energy recovery section(s) are joined only by ducts or connections carrying flue gas is not integrally designed; however, secondary energy recovery equipment (such as economizers or air preheaters) need not be physically formed into the same unit as the combustion chamber and the primary energy recovery section. The following units are not precluded from being boilers solely because they are not of integral design: Process heaters (units that transfer energy directly to a process stream), and fluidized bed combustion units; and
  • While in operation, the unit must maintain a thermal energy recovery efficiency of at least sixty percent, calculated in terms of the recovered energy compared with the thermal value of the fuel; and
  • The unit must export and utilize at least seventy-five percent of the recovered energy, calculated on an annual basis. In this calculation, no credit will be given for recovered heat used internally in the same unit. (Examples of internal use are the preheating of fuel or combustion air, and the driving of induced or forced draft fans or feedwater pumps); or
  • The unit is one which the department has determined, on a case-by-case basis, to be a boiler, after considering the standards in WAC 173-303-017(6).

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Capacity: the quantity of waste that a facility or system can manage. For landfill systems, maximum operational capacity is defined as the quantity of waste that can enter the system over the remaining lifetime of the system. For flow systems, maximum operational capacity is defined as the maximum quantity that can enter the system during the course of one year.

CFR: see Code of Federal Regulations.

Closed Loop Recycling System: a production system in which secondary materials are reclaimed, returned to, and reused in the original production process or processes from which they were generated, PROVIDED:

  • the material (typically solvent) is contained in a tank or tanks, and the process, storage, and reclamation tanks are completely enclosed and connected (e.g., by pipes);
  • the spent materials (solvents) are never accumulated in such tanks for over twelve months without being reclaimed;
  • reclamation does not involve controlled flame combustion (e.g., burning or incineration that occurs in boilers, industrial furnaces, or incinerators);
  • the reclaimed material is not used to produce a fuel or used to produce products that are used in a manner constituting disposal; and
  • all dangerous waste residues (e.g., still bottoms, sludges) from the production/reclamation process go to a permitted treatment, storage, and disposal facility (TSDR), or to a legitimate recycler. (If the generator can demonstrate that the residues do not exhibit any dangerous waste characteristics [WAC 173-303-090] or criteria [WAC 173-303-100] and provided that the original waste was not listed, then the residues are exempted from this condition; if the original waste was listed, then the residue is also listed.)
  • Degreasing processes are not considered production processes, and the reclaimed degreasing solvent, when subsequently used as a degreaser, is not feedstock. Therefore, a degreasing process would NOT fit the criteria for a closed loop recycling system.

Characteristic Dangerous or Hazardous Wastes: are regulated because they behave in a manner that makes them hazardous or dangerous. Either a person's knowledge or testing can be used to identify these dangerous characteristics. They are regulated by both Washington state and the United States Environmental Protection Agency. Characteristic waste codes start with a "D," for example, "D001" is the waste code applied to ignitable wastes. They are described in WAC 173-303-090.

  • Ignitable Characteristic Wastes are likely to cause or increase a fire danger.
  • Corrosive Characteristic Wastes are likely to react dangerously with other wastes or cause other toxic contaminants to migrate.
  • Reactive Characteristic Wastes are likely to cause an explosive or sudden toxic danger.
  • Toxic characteristic wastes have the ability to leach (move) into groundwater. The ability of a waste to leach is measurable by a standardized test method. The waste is not regulated unless the contaminants meet or exceed the concentrations given on the list.

Code of Federal Regulations: the detailed regulations, written by federal agencies, that implement the provisions of laws passed by Congress. Regulations in the CFR have the force of federal law. Federal hazardous waste regulations are found in 40 CFR Parts 260 through 279.

Commercial: To offer waste transport or management to other businesses or facilities, who will pay for the service.

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Dangerous Waste: Dangerous wastes are those solid wastes that designate as dangerous waste or extremely hazardous waste under WAC 173-303-070 through WAC 173-303-100. The term "Dangerous Wastes" includes federal Hazardous Wastes and wastes regulated only by Washington State.

Dangerous Waste Fuel: Dangerous waste or any fuel that contains dangerous waste which is burned for energy recovery in a boiler or in an industrial furnace. The boiler or industrial furnace cannot be regulated as a hazardous waste incinerator.

Designated Facility: the facility identified on a hazardous waste manifest to receive a dangerous waste shipment. It must be authorized under Chapter 173-303 WAC or the Resource Conservation and Recovery Act (RCRA) to recycle or manage dangerous waste.

Designation: the process of determining whether a waste is regulated under the dangerous waste lists, WAC 173-303-080 through 173-303-082; or characteristics, WAC 173-303-090; or criteria, WAC 173- 303-100. The procedures for designating wastes are in WAC 173-303-070. A waste that has been designated as a dangerous waste may be either DW or Extremely Hazardous Waste (EHW).

Disposal: the discharging, discarding, or abandoning of dangerous waste, or the treatment, decontamination, or recycling of such wastes once they have been discarded or abandoned. This includes the discharge off any dangerous wastes into or on any land, air, or water.

Destination facility for Universal Waste: a facility that treats, disposes of, or recycles a particular category of universal waste, except those management activities described in WAC 173-303-573 (9)(a), (b) and (c) and 173-303-573 (20)(a), (b) and (c). A facility at which a particular category of universal waste is only accumulated is not a destination facility for purposes of managing that category of universal waste.

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EHW:see Extremely Hazardous Waste.

Energy Recovery: Burning used oil in an enclosed device or unit using controlled flame combustion to recover heat energy.

Extremely Hazardous Waste (EHW): (see What is DW or EHW designation?) Those solid wastes as defined in Chapter 173-303 WAC that designate as Extremely Hazardous Waste.

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Facility: all contiguous land, and structures, equipment, and improvements on the land used for recycling, reusing, reclaiming, transferring, storing, treating, or disposing off dangerous waste. A facility may consist of several treatment, storage, or disposal operational units (e.g., one or more landfills, surface impoundments, or combination of them). Unless otherwise specified in these forms, the terms facility, management facility, TSDR facility, and treatment/storage/disposal/recycling facility shall be used interchangeably.

Form Code: code developed by EPA to describe the physical/chemical nature of a waste. The coding system is divided into seven broad categories: Mixed Media/Debris/Devices, Inorganic Liquids, Organic Liquids, Inorganic Solids, Organic Solids, Inorganic Sludges, and Organic Sludges. The broad categories have subsections to describe more specific wastes. Examples of form codes include: W203 concentrated non-halogenated (e.g., non-chlorinated) solvent, and W505 metal bearing sludges (including plating sludge) not containing cyanides.

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Generator: any person, by site, whose act or process produces dangerous waste or whose act first causes a dangerous waste to become subject to regulation.

Generator of Fuel: Person, by site, whose act or process produces dangerous waste fuel or whose act first causes a dangerous waste fuel to become subject to regulation.

Generator who Markets to a Burner: Persons who send their waste fuel directly to a burner.

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Hazardous Waste: Hazardous wastes are regulated because they designate (are identified) under the U.S. Environmental Protection Agency's (USEPA's), Code of Federal Regulations (Hazardous Waste Regulations), 40 CFR Part 261. Washington state is authorized by the federal government to regulate hazardous wastes. The term "Dangerous Wastes" includes the federal Hazardous Wastes.

Hazardous Waste Planning Fee: per Chapter 173-305 WAC, a fee assessed on generators, organizations required to prepare Pollution Prevention Plans. Assessment is based on the quantity of generation.

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Industrial Boiler: A boiler located on the site of a facility that is engaged in a mechanical or chemical manufacturing process to transform substances into new products, including the component parts of products.

Industrial Furnace: Any of the following enclosed devices that are integral components of manufacturing processes and that use controlled flame combustion to recover materials or energy: cement kilns, lime kilns, aggregate kilns (including asphalt kilns), phosphate furnaces, refining furnaces, titanium dioxide chloride process oxidation reactors, and methane-reforming furnaces (and other devices as specified by Ecology.)

Installation: a facility or site.

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Lab pack: small containers of dangerous waste in over packed drums.

Land Owner: in the context of these forms, the person who owns the property a facility is located on.

Large Quantity Generator (LQG):  a generator whose monthly waste generation or accumulation is 2,200 pounds or more of dangerous waste, or 2.2 pounds or more of acutely hazardous waste.

Large Quantity Handler of Universal Waste (LQHUW): a universal waste handler as defined in Chapter 173-303-040 WAC who accumulates 11,000 pounds or more total of universal waste (batteries, thermostats, and lamps calculated collectively) and/or who accumulates more than 2,200 pounds of lamps at any time. This designation as a large quantity handler of universal waste is retained through the end of the calendar year in which 11,000 pounds or more total of universal waste and/or 2,200 pounds of lamps are accumulated.

Legal Owner: in the context of these forms, the company/agency who owns the site or part of the site to which the RCRA Site ID Number is assigned.

Listed Dangerous or Hazardous Wastes: can be identified on lists by their chemical names or the processes that generate them. A person's knowledge must be used to identify these wastes. They are regulated by both Washington state and EPA. Characteristic waste codes start with a "U," a "P," an "F," a "K," or "WPCB." They are described in WAC 173-303-081 and -082, and individually listed in WAC 173-303-9903 and -9904.

Listed Discarded Chemical Products are listed by a common name and chemical identification number (CAS). For example, "P095" is the waste code applied to phosgene.

Listed Source Wastes come from non-specific waste streams such as a "spent (used) acetone" (F003), or very specific industry sources such as "emission control dust/sludge from secondary lead smelting" (K069).

LQG: see Large Quantity Generator

LQHUW: see Large Quantity Handler of Universal Waste

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Management: means the treatment, storage, disposal, or recycling of dangerous waste.

Management Method Code: code developed by EPA to describe the type of hazardous waste management system used to treat or dispose of a hazardous waste. The 29 specific codes are organized into four broad categories: Reclamation and Recovery, Destruction or Treatment Prior to Disposal at Another Site, Disposal, and Storage and Transfer. Examples of specific management codes include "H020," solvents recovery; "H040" incineration, thermal destruction other than as a fuel, and "H132," landfill or surface impoundment that will be closed as a landfill.

Management Facility: means a facility that treats, stores, recycles, or disposes of dangerous waste. See also TSDR facility.

Management System: a process or series of processes acting together to perform a single operation on a dangerous waste stream. May consist of a number of units, or single pieces of equipment, e.g., individual tanks, surface impoundments, or distillation systems.

Manifest: the Uniform Hazardous Waste Manifest or hazardous waste shipping document, prepared in accordance with the requirements of WAC 173-303-180 that is used to identify the quantity, composition, origin, routing, and destination of a dangerous waste while it is being transported to a point of transfer, disposal, treatment, or storage.

Manifest Document Number: the unique twelve-digit document number located right after the US EPA twelve digit identification number on a manifest. This number is assigned to the manifest by the generator for recording and reporting purposes.

Material Safety Data Sheet (MSDS): manufacturers are required by law to provide material safety data sheets on all products that they manufacture and sell. These data sheets provide information on the physical, chemical, and toxic properties of a product.

Medium Quantity Generator (MQG): a generator whose monthly waste generation or accumulation is 220 pounds or more, but less than 2,200 pounds, of dangerous waste.

Mixed Radioactive) Waste: a radioactive waste, as defined by the Atomic Energy Act, which is mixed with a dangerous waste. This waste is regulated under RCRA as well as the Nuclear Regulatory Act and must be reported on these forms.

MQG: see Medium Quantity Generator.

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NAICS: see North American Industry Classification System

National Pollutant Discharge Elimination System (NPDES): a provision of the Clean Water Act that prohibits discharge of pollutants into waters of the United States unless a special permit is issued by EPA, a state, or (where delegated) a tribal government on an Indian reservation.

Non-Recurrent Waste: or periodic waste generation is when you generate waste during non-routine events such as spill cleanup or the equipment decommissioning. It includes remediation-derived waste generation, such as a Superfund remedial action or RCRA closure of a dangerous waste management unit. Non-recurrent waste is not associated with ongoing, day-to-day, or routine site operations.

North American Industry Classification System (NAICS): has replaced the U. S. Standard Industrial Classification (SIC System). NAICS is a classification system developed jointly by the United States, Canada, and Mexico to provide new comparability in statistics about business activity across North America.

NPDES: see National Pollutant Discharge Elimination System.

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Off-site: any facility or business on another property, or on a different site (see On-site).

Off-Specification Used Oil Fuel: Fuel that exceeds any specification level in the following table from WAC 173-303-515:

Table 1--used oil exceeding any specification level is subject to this section when burned for energy recovery

Constituent/property Allowable level
Arsenic 5 ppm maximum
Cadmium 2 ppm maximum
Chromium 10 ppm maximum
Lead 100 ppm maximum
Flash point 100° F minimum
Total halogens 4,000 ppm maximum *

* Used oil containing more than 1,000 parts per million (ppm) total halogens is presumed to be a dangerous waste under the rebuttable presumption provided under 40 CFR 279.10(b)(1). Such used oil is subject to 40 CFR Subpart H of Part 266 rather than this section when burned for energy recovery unless the presumption of mixing can be successfully rebutted.

Note: Applicable standards for the burning of used oil containing PCBs are imposed by 40 CFR 761.20(e).

On-site: on the same, geographically contiguous, or bordering property. Travel between two bordering properties divided by a public right-of-way, and owned, operated, or controlled by the same person, shall be considered on-site travel if: the travel crosses the right-of-way at a perpendicular intersection or the right-of-way is controlled by the property owner and is inaccessible to the public.

Operator: in the context of these forms, the person responsible for the operation of the site to which the RCRA Site ID Number is assigned.

Origin Code: code developed by Department of Ecology to describe the origin of a hazardous waste, in terms of the type of activity that generated the waste in question. Examples of an origin code include origin code "i," which indicates that the waste is recurrent, from production processes or routine service and cleanup activities; and origin code "ii," which indicates that the waste is the result of a spill cleanup, equipment decommissioning, or other remedial clean-up activity.

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Permit: an authorization that allows a person to perform dangerous waste transfer, treatment, storage, or disposal operations, and that typically includes specific conditions for such operations. Permits must be issued by Ecology, EPA, or another state authorized by EPA pursuant to 40 CFR. Part 271 and WAC 173-303-800 through -810.

Permit-by-Rule (PBR): a provision of the Dangerous Waste Regulations whereby a facility or activity is considered to have a dangerous waste permit to treat waste if certain requirements are complied with. PBR provisions for wastewater treatment units and elementary neutralization units apply only to the unit(s) involved and do not apply to the specific waste(s) being treated. Dangerous wastes are fully regulated before entering a PBR unit and when removed from the unit.

The owner or operator of a totally enclosed treatment facility or an elementary neutralization or wastewater treatment unit that treats state-only dangerous wastes generated on or off site, or federally regulated hazardous wastes generated on site will have a permit by rule, if they have an:

  • National Pollutant Discharge Elimination System (NPDES) permit
  • State waste discharge permit
  • Pretreatment permit (or written discharge authorization from the local sewerage authority) issued by the department, or
  • Pretreatment permit (or written discharge authorization) from a local sewage utility delegated pretreatment program responsibilities pursuant to RCW 90.48.165.

The owner or operator of a Publicly Owned Treatment Works (POTW) which accepts dangerous waste for treatment will have a permit by rule if the owner or operator has a National Pollutant Discharge Elimination System (NPDES) permit.

Underground injection wells will have a permit by rule if the owner or operator has an underground injection control (UIC) permit issued by the department under a federally approved program for underground injection control.

The owner or operator of a barge or other vessel which accepts dangerous waste for ocean disposal, will have a permit by rule if the owner or operator has a permit for ocean dumping issued under 40 CFR Part 220 (Ocean Dumping, authorized by the Marine Protection, Research, and Sanctuaries Act, as amended, 33 United States Code § 1420 et seq.).

Pollution Prevention Plan: per Chapter 173-307 WAC, a plan that identifies and addresses opportunities to reduce the use of toxic materials and the generation of dangerous wastes. Generators of at least 2,640 pounds of recurrent dangerous waste in one year are required to prepare one.

Publicly Owned Treatment Works (POTW): wastewater treatment works owned by a state, unit of local government, or Indian Tribe usually designed to treat domestic wastewaters.

POTW: see Publicly Owned Treatment Works

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QEL: see Quantity Exclusion Limit.

Quantity Exclusion Limit (QEL): (see The quantity exclusion limit (QEL) of a waste) The quantity, by weight, at which a waste becomes fully regulated under medium quantity generator and large quantity generator requirements, as per WAC 173-303-070.

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RCRA: see Resource Conservation and Recovery Act.

RCRA Site ID Number: the number used by EPA and the US Department of Transportation to identify each generator, transporter, and treatment, storage, and disposal facility in the USA. In Washington State, the ID number is assigned by the Department of Ecology. It begins with "WA" and is followed by a letter and 9 digits or by 10 digits.

RCW: Revised Code of Washington (legislative statutes: Laws).

Reclaim: to process a material in order to recover usable products, or to regenerate a material.

Reclamation: a process to recover a usable product or to regenerate a usable material. Examples are recovery of lead from spent batteries and regeneration of spent solvents.

Recurrent Waste: waste derived on-site from a production process, service activity or routine cleanup (including off-specification or spent chemicals).

Recycle: means to use, reuse, or reclaim a material.

Recycling: the use or reuse off waste as an effective substitute for a commercial product or as an ingredient or feedstock in an industrial process. It also refers to the reclamation of useful constituent fractions within a waste material or the removal of contaminants from a waste to allow it to be reused. As used in this report, recycling implies use, reuse, or reclamation of a waste after it has been generated.

Recycling Without Prior Storage or Accumulation: waste recycled on-site, without being stored or accumulated prior to recycling in a process subject to WAC 173-303-120(4)(a) of the Dangerous Waste Regulations, are not counted toward generator status and not reported on the Annual Dangerous Waste Report. As soon as the waste is generated, it must immediately enter the recycling unit. Wastes cannot be carried in buckets between the point of generation and the recycling units.

Residual: matter that remains after completion of a waste treatment activity (e.g., a sludge resulting from wastewater treatment; a still bottom remaining after solvent distillation),

Resource Conservation and Recovery Act (RCRA): the federal law regulating hazardous waste. The Solid Waste Disposal Act, as amended by the Resource Conservation and Recovery Act of 1976, as amended by the Hazardous and Solid Waste Amendments of 1984, 42 U.S.C. Section 6901 et seq.

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Site: for the purpose of these forms, a site is the land or water area where any facility or activity is physically located or conducted, including adjacent land used in connection with the facility or activity.

Small Quantity Generator (SQG): A generator whose monthly waste generation is less than the QEL (220 pounds for most common wastes or 2.2 pounds for acutely hazardous wastes) and whose accumulation (at any time) is less then 2,200 pounds for waste with a QEL of 220, or 2.2 pounds for waste with QEL of 2.2 pounds.

Smelting, Melting, and Refining Furnace Exemption: Under 40 CFR 266.100(c), owners or operators of smelting, melting, and refining furnaces that process hazardous wastes solely for metals recovery are conditionally exempt from regulation, except for 40 CFR. 266.101 and 266.112, provided they comply with limited requirements set forth in Section 266.100(c). Similarly, 40 CFR 266.100(f) provides that owners or operators of smelting, melting, and re-fining furnaces that process hazardous wastes for the recovery of precious metals are conditionally exempt from regulation, except for 40 CFR 266.112, provided they comply with limited requirements specified in Section 266.100(f).

Smelter Deferral: You process hazardous waste in a smelting, melting, or refining furnace solely for metals recovery, as described in 40 CFR 266.100 (d), or to recover economically significant amounts of precious metals as described in 40CFR 266.100(g), or if you process hazardous wastes in a lead recovery furnace to recover lead, as described in 40 CFR 266.100(h).

Special Waste Handler

Source Code: code developed by EPA to indicate what industrial process or activity caused the generation of a hazardous waste. The 34 specific codes are organized into six broad categories: Wastes from Ongoing Production and Service Processes, Other Intermittent Events or Processes, Pollution Control and Waste Management Process Residuals, Spills and Accidental Releases, Remediation of Past Contamination, and Waste Not Physically Generated on Site. Examples of specific source codes include "G06," painting and coating; and "G13," cleaning out process equipment.

Source Reduction: any practice that (1) reduces the amount of any hazardous substance, pollutant, or contaminant entering any waste or otherwise being released into the environment (including fugitive emissions) prior to recycling, treatment, or disposal; and (2) reduces the hazards to public health and the environment associated with the release of such substances, pollutants, or contaminants. The term includes equipment or technology modifications, process or procedure modifications, reformulation or redesign of products, substitution of raw materials, and improvements in housekeeping, maintenance, training, or inventory control. Source reduction does not include any practice that alters the physical, chemical, or biological characteristics or the volume of a hazardous substance, pollutant, or contaminant through a process or activity which itself is not integral to and necessary for the production of a product or the provision of a service.

SQG: see Small Quantity Generator.

State Regulated Dangerous Waste Codes: Wastes that are regulated only by Washington State. Also known as "State only" wastes.

  • "WPCB" - Listed Source Waste Code for PCBs
    Example of a potential WPCB Waste: An un-drained transformer suspected to contain PCBs.

  • "WSC2" - State Solid Corrosive
    Example of a State Solid Corrosive Waste: Batteries not managed under the Universal Waste provisions.

  • "WT01" - Extremely Hazardous State Toxic Criteria Waste.

  • "WT02" - Dangerous State Toxic Criteria Waste.
    Examples of potential Toxic Criteria Wastes: Wash waters, spent solvents, batteries, paints, coatings and sealing compounds.

  • "WP01" - State Persistent Criteria Halogenated Organic Compounds (HOCs) greater than 1% or 10,000 parts per million - Extremely Hazardous Waste.

  • "WP02" - State Persistent Criteria Halogenated Organic Compounds (HOCs) equal to or greater than 0.01% or 100 parts per million, and not more than 1% or 10,000 parts per million - Dangerous Waste.

  • "WP03" - State Persistent Criteria Polycyclic Aromatic Hydrocarbons (PAHs) greater than 1% or 10,000 parts per million Extremely Hazardous Waste. There is no Dangerous Waste concentration level for PAHs.

Examples of potential Persistent Criteria Wastes: Organic compounds, such as heating and motor fuels, cleaning solvents, paints, varnishes, and aerosols are very commonplace materials. Also asphalt wastes, paint and ink, oil, grease, brake fluid and fuels, PCB contaminated wastes, pesticides, and contaminated soil and absorbents.

  • "WL01" - A lab pack containing any amount of State regulated Extremely Hazardous Waste having waste codes WT01, WP01, or WP03.
  • "WL02" - A lab pack containing any other Federal or State regulated wastes with waste codes other than WT01, WT02, or WP03.

Storage: means the holding of dangerous waste for a temporary period at the end of which the dangerous waste is treated, disposed of, or transferred elsewhere. "Accumulation" of dangerous waste, by the generator on the site of generation, is not storage as long as the generator complies with the applicable requirements of WAC 173-303-200 and 173-303-201.

Storage/Transfer: a dangerous waste handling activity, not to include treatment, recycling, or disposal (see the individual definitions), that may involve the permitted storage of a dangerous waste prior to its ultimate treatment/disposal/recycling, whether on-site or off-site; and may involve the sorting, consolidating, and/ or re-packaging of dangerous wastes received from off-site for purposes of more efficient management or transport. Examples of storage/transfer activities include:

  • the sorting of lab packs received from generators to ascertain the quantities and identities of the various items in the pack in preparation for re-packaging of the lab pack's contents for transport to ultimate treatment/recycling/disposal;
  • the consolidation of waste in a container/tank for purposes of simplified, more economical transport to a facility for ultimate treatment/disposal/recycling; and
  • the crushing of miscellaneous waste containers for more compact and efficient transport to ultimate treatment/ disposal/ recycling.

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TCLP: see Toxicity Characteristic Leaching Procedure.

Toxicity Characteristic Leaching Procedure (TCLP): a test procedure used to evaluate the characteristic of toxicity for purposes of designating a dangerous waste (see How to designate for dangerous waste codes).

Transfer Facility: means any transportation related facility including loading docks, parking areas, storage areas, buildings, piers, and other similar areas where shipments of dangerous waste are held, consolidated, or transferred within a period of ten days or less during the normal course of transportation.

Transportation: the movement of dangerous waste by air, rail, highway, or water.

Transporter: a person engaged in the off-site transportation of dangerous waste.

Treatment: the physical, chemical, or biological processing of dangerous waste to make such wastes non-dangerous or less dangerous, safer for transport, amenable for energy or material resource recovery, amenable for storage, or reduced in volume, with the exception of compacting, repackaging, and sorting as allowed under WAC 173-303-400(2) and 173-303-600(3). Treatment includes any method, technique, or process designed to change the physical, chemical, or biological character or composition of any dangerous waste so as to:

  • neutralize such waste,
  • recover energy or material resources from the waste,
  • render such waste non-dangerous or less hazardous,
  • make it safer for transport, storage, or disposal, or
  • make it amenable for recovery, amenable for storage, or reduce its volume.

Treatment-by-Generator (TBG): the process by which generators may treat their own dangerous wastes on-site without obtaining review, written approval, or a dangerous waste treatment permit. The following dangerous waste treatment activities are included:

  • filtration
  • elementary neutralization
  • solidification
  • evaporation
  • filtration
  • carbon adsorption
  • separation and distillation
  • polymerization
  • aldehyde deactivation
  • pharmaceutical waste

See Treatment by Generator, #96-412, available from Ecology at 360-407-6752 for more information.

Treatment/Storage/Disposal/Recycling (TSDR ) Facility: All contiguous land and structures, other appurtenances, and improvements of the land used for recycling, reusing, reclaiming, transferring, treating, storing, or disposing of dangerous waste. Unless otherwise specified, the terms treatment/storage/disposal/recycling facility, TSDR facility, and management facility shall be used interchangeably.

TSDR Facility: see Treatment/Storage/Disposal/Recycling facility.

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UIC: see Underground Injection Control.

Underground Injection Control (UIC): The subsurface emplacement of fluids through a bored, drilled or driven well; or through a dug well, where the depth of the dug well is greater than the largest surface dimension.

Universal Waste: Wastes managed under the Universal Waste Rule (WAC 173-303-573) are not counted toward generator status and not reported on your dangerous waste annual reports. These include:

  • Batteries - all batteries that designate as hazardous waste should be managed as universal waste. Spent lead-acid batteries may continue to be managed under the existing lead-acid battery exemption at WAC 173-303-520.
  • Lamps - also referred to as "universal waste lamps" means any type of high or low pressure bulb or tube portion of an electric lighting device that generates light through the discharge of electricity either directly or indirectly as radiant energy. Universal waste lamps include, but are not limited to, fluorescent, mercury vapor, metal halide, high-pressure sodium and neon. As a reference, it may be assumed that four, 4-foot, 1-inch diameter unbroken fluorescent tubes are equal to 2.2 pounds in weight.
  • Mercury containing thermostats: A mercury containing thermostat is a temperature control device that contains metallic mercury in an ampule attached to a bimetal sensing element (this does not include all mercury switches). Ampules removed from these thermostats should also be managed under the universal waste requirements. Other types of mercury switches must be managed according to all applicable dangerous waste requirements.

Universal Waste Handler: also means Large Quantity Handler of Universal Waste.

  • Has the same meaning as a "generator" of universal waste; or
  • The owner or operator of a facility, including all contiguous property, that receives universal waste from other universal waste handlers, accumulates universal waste, and sends universal waste to another universal waste handler, to a destination facility, or to a foreign destination.

Universal waste handler does not mean:

  • A person who treats (except under the provisions of WAC 173-303-573 (9)(a), (b), or (c) or (20)(a), (b), or (c)) disposes of, or recycles universal waste; or
  • A person engaged in the off-site transportation of universal waste by air, rail, highway, or water, including a universal waste transfer facility.

Universal Waste Transfer Facility: means any transportation-related facility including loading docks, parking areas, storage areas and other similar areas where shipments of universal waste are held during the normal course of transportation for ten days or less.

Universal Waste Transporter: means a person engaged in the off-site transportation of universal waste by air, rail, highway, or water.

Used Oil: Any oil that has been refined from crude oil, or any synthetic oil, that has been used and as a result of such use is contaminated by physical or chemical impurities.

Used Oil Fuel: Used oil fuel can designate for the federal dangerous waste characteristics of Ignitability, Corrosivity, Reactivity, or Toxicity (D codes).  It cannot be mixed with  Dangerous Waste.  See WAC 173-303-090.

It can also designate for State Toxicity Criteria WT02, or Persistence Criteria WP02 waste codes. It can't designate for WT01, WP01, or WP03 extremely hazardous waste codes .

Used Oil Fuel Marketer: Any person who conducts either of the following activities:

Directs a shipment of off-specification used oil from their site, to an off-specification used oil burner; or

  • First claims that used oil that is to be burned for energy recovery meets the used oil fuel specifications set forth in CFR 279.11.

Used Oil Processor/Re-refiner: a facility that processes used oil.

  • Process - A site that processes on or off-specification used oil. Processing is chemical or physical operations designed to produce from used oil, or to make used oil more amenable for production of, fuel oils, lubricants, or other used oil-derived product. Processing includes, but is not limited to: blending used oil with virgin petroleum products, blending used oils to meet the fuel specification, filtration, simple distillation, chemical or physical separation and re-refining.

Re-refine: To produce lubricating oils and greases, industrial fuel, asphalt extender, gasoline, and other products from on- or off-specification used oil.

Used Oil Transfer Facility: any transportation-related facility, including loading docks, parking areas, storage areas, and other areas where shipments of used oil are held for more than 24 hours during the normal course of transportation and not longer than 35 days. Transfer facilities that store used oil for more than 35 days are subject to regulation under 40 CFR Part 279, Subpart F.

Used Oil Transporter: any person who transports used oil, who collects used oil from more than one generator and transports the collected oil, and owners and operators of used oil transfer facilities. Used oil transporters may consolidate or aggregate loads off used oil for purposes of transportation but, with the following exception, may not process used oil. Used oil transporters may conduct incidental processing operations that occur in the normal course of used oil transportation (e.g., settling and water separation), but that are not designed to produce (or make more amenable for production of) used oil-derived products or used oil fuel.

Utility Boiler: a boiler that is used to produce electricity, steam, or heated or cooled air for sale.

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WAC: Washington Administrative Code. Chapter 173-303 WAC provides the Department of Ecology’s dangerous waste regulations.

Waste: all dangerous and hazardous waste regulated pursuant to Chapter 173-303 WAC and the federal RCRA regulation.

Waste Minimization: the reduction, to the extent feasible, of dangerous waste that is generated or subsequently treated, stored, or disposed of. It includes any source reduction or recycling activity undertaken by a generator that results in (1) the reduction of total volume or quantity of dangerous waste; (2) the reduction of toxicity of dangerous waste; or (3) both, as long as the reduction is consistent with the goals of minimizing present and future threats to human health and the environment.

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XQG (No Regulated Waste Generated): Dangerous Waste is not generated in any amount.

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