Environment terminology · MLC-0121
Environment terms: W (738)
- WabashThe Wabash River Basin. Illinois, Indiana, Ohio. Area = 32600 sq.mi.
- Wadeable Stream1. A stream, creek, or small river that is shallow enough to be sampled using methods that involve wading...
- Wadeable streamsStreams that are small and shallow enough to adequately sample by wading, without a boat.
- Wading BirdLong-necked, long-legged birds that feed by wading in wetlands and catching prey with their bills. Includes...
- Waelz KilnInclined rotary kiln in which zinc-containing materials are charged together with a carbon reducing agent...
- Wafer CleaningProcess type that consists of any production process using fluorinated GHG reagents to clean wafers at any...
- Wafer KilnKiln that dries materials presenting as wafers.
- Wafer PassCount of the number of times a wafer substrate is processed in a specific process recipe, sub-type, or type...
- Wafer StartNumber of fresh wafers that are introduced into the fabrication sequence each month. It includes test wafers...
- Walk Through ParlorUpon completion of milking, cows walk through the front of the stall to exit.
- Walk to School DayEvent to promote physical activity, safety, and concern for the environment that can increase opportunities...
- walkover locator1. Used in horizontal directional drilling, a commonly-used locating technology in which a battery-operated...
- Wall InsulationInsulating materials within or on the walls between heated areas of the building and unheated areas or the...
- Wall-Fired BoilerBoiler that has pulverized coal burners arranged on the walls of the furnace. The burners have discrete...
- Warburg EffectThis effect refers to the high cellular levels of lactic acid in tumor cells, and is named after Otto Warburg...
- WarehouseBuilding for the storage of goods and merchandise prior to shipment for selling.
- WarfarinAn anticoagulant that acts by inhibiting the synthesis of vitamin K-dependent coagulation factors. Warfarin...
- Warfarin and salts (1.0)Includes any unique chemical substance that contains warfarin or a warfarin salt as part of that chemical's...
- Warm Air FurnaceWarm air is heated directly by burning a fuel. Then warm-air furnaces typically rely on air ducts to carry...
- Warm CloudClouds totally below the 0 degree isotherm
- Warm Core RingAn eddy that forms when a boundary current pinches off a parcel of warmer water. The ring measures 100-200...
- Warm FrontA transition zone between a mass of warm air and the colder air it is replacing.
- Warm Mix AsphaltMixture of an asphalt binder with aggregate, paraffin or esterfied wax, and mineral additives that allow its...
- Warm Season PlantA plant which makes most or all its growth during the spring, summer, and fall and is usually dormant in...
- Warning DeviceSound emitting device used to alert and warn people of the presence of railroad equipment.
- Warning LabelWarning statement required by section 611 of the Act. The term warning statement shall be synonymous with...
- Warning StatementWarning statement required by section 611 of the Act. The term warning statement shall be synonymous with...
- WarrantyWarranty required by section 6(c)(1) of the Act. [40 CFR 204.2 (CFR 2013)] [40 CFR 205.2 (CFR 2013)]
- WashcoatTransparent special purpose finishing material having a solids content by weight of 12.0 percent by weight or...
- Washed Shell MoundGenerally linear accumulations of dead shell that form high in the intertidal zone along tidal creeks and on...
- Washer1. Machine which agitates fabric articles in a petroleum solvent bath and spins the articles to remove the...
- WASHINGA film-processing step that uses water to remove unwanted soluble chemicals from photographic material.
- Washing Finished ProductsCleaning finished metal products after use or storage using fresh water or water containing a mild cleaning...
- WashloadSediment carried in suspension by stream flow and that is of sizes not represented in the bed material.
- Washoff OperationThose operations in which organic HAP solvent is used to remove coating from wood furniture or a wood...
- WashoutCarrying away of solid waste by waters of the base flood.
- Washover FanA fan-like landform of sand that washed over a barrier island or spit during a storm, and then deposited sand...
- Washover Fan FlatA gently sloping, fan-like, subaqueous landform created by overwash from storm surges that transports...
- WashwaterLiquid resulting from the rinsing of the exterior of any equipment or containers that have or may have come...
- Wasp and Hornet InsecticideAny insecticide product that is designed for use against wasps, hornets, yellow jackets, or bees by allowing...
- Waste1. Unwanted materials left over from a manufacturing process; Refuse from places of human or animal...
- Waste Analysis PlanA plan that outlines the procedures necessary to ensure proper treatment, storage, or disposal of hazardous...
- Waste and WastewaterMaterial, or spent or used water or waste, generated from residential, industrial, commercial, mining, or...
- Waste Biological TreatmentVarious waste treatment processes utilizing various micro-organisms to degrade/transform waste.
- Waste by SubstanceWaste, not otherwise specified, characterized by a predominant substance.
- Waste Characteristic1. Waste that is considered hazardous under RCRA because it exhibits any of four different properties...
- Waste Characterization1. Identification of chemical and microbiological constituents of a waste material.
- Waste Characterization StudiesRefers to the identification and measurement (by weight or volume) of specific categories of municipal solid...
- Waste Combustion SystemStructural system that burns waste materials to dispose of them
- Waste ComponentIngredient of the total inventory of the waste that influences a waste characteristic.
- Waste Cover1. Soil or other material used to cover sewage sludge placed on an active sewage sludge unit.
- Waste Derived EthanolEthanol derived from animal wastes, including poultry fats and poultry wastes, and other waste materials or...
- Waste Destruction1. With respect to fluorinated GHGs, the expiration of a fluorinated GHG to the destruction efficiency...
- Waste DeterminationPerforming all applicable procedures in accordance with the requirements of § 265.1084 of this subpart to...
- Waste Disposal CompanyBusiness providing the service of removing different types waste products safely from their source to a...
- Waste Disposal SystemTechnology and activities related to the elimination of waste.
- Waste Disposal System Modification1. Change to a HMIWI unit after April 6, 2010, such that: (1) The cumulative costs of the modifications, over...
- Waste ExchangeArrangement in which companies exchange their wastes for the benefit of both parties.
- Waste FeedThe continuous or intermittent flow of wastes into an incinerator.
- Waste FixationAny physical or chemical process used to either reduce the mobility of hazardous constitutents in a hazardous...
- Waste FormMaterials comprising the radioactive components of waste and any encapsulating or stabilizing matrix.
- Waste Generating FacilityAll contiguous property owned, leased, or otherwise controlled by the non-hazardous secondary material...
- Waste Generation1. Refers to the amount (weight or volume) of materials and products that enter the waste stream before...
- Waste Grease(Waste) lubricants, greases and fuel additives
- Waste HandlingProcessing or treatment of waste (liquid or solid) that is generated as a by-product of either the magnetic...
- Waste Handling DeviceEquipment that is used to separate solvent from solid waste (e.g., filter dryers) or liquid waste (e.g., pot...
- Waste Heat BoilerDevice that recovers normally unused energy (i.e., hot exhaust gas) and converts it to usable heat. Waste...
- Waste Heat EmissionThe release into the environment of heat which is a byproduct of an existing process.
- Waste Heat RecoveryCapturing heat energy that is a byproduct of manufacturing processes and putting it to use rather than...
- Waste Incinerator EmissionEmissions from commercial and industrial solid waste incinerators (general waste burning units without...
- Waste Isolation Pilot PlantWaste Isolation Pilot Plant, as authorized pursuant to section 213 of the Department of Energy National...
- Waste Isolation Pilot Plant Land Withdrawal ActTo withdraw land for the Waste Isolation Pilot Plant, and for other purposes.
- Waste Liquid MercuryWaste containing liquid (metallic) mercury
- Waste Load Allocation1. The maximum load of pollutants each discharger of waste is allowed to release into a particular waterway...
- Waste ManagementThe weight or volume of materials and products that enter the waste stream before recycling, composting...
- Waste Management & Remediation ServicesIndustries in the Waste Management and Remediation Services subsector group establishments engaged in the...
- Waste Management OperationCollection of off-site material management units, process vents, and equipment components used at a plant...
- Waste Management Unit1. Equipment, structure, or device used to convey, store, treat, or dispose of regulated-material. Examples...
- Waste Management Unit BoundaryVertical surface located at the hydraulically downgradient limit of the unit. This vertical surface extends...
- Waste Management WellShaft sunk into the ground for the purpose of waste disposal or management
- Waste MaterialMatter of any kind or description, including, but not limited to, dredged material, solid waste,incinerator...
- Waste Minimization1. Measures or techniques that reduce the amount of wastes generated during industrial production processes...
- Waste Minimization PracticeProcedures employed to minimize material losses and prevent unnecessary waste generation, for example...
- Waste OilUsed products primarily derived from petroleum, which include, but are not limited to, fuel oils, motor oils...
- Waste OverflowDischarge of manure or process wastewater resulting from the filling of wastewater or manure storage...
- Waste PileAn open pile used for treating or storing nonliquid hazardous waste.
- Waste PilesNon-containerized, lined or unlined accumulations of solid, nonflowing waste.
- Waste PondSurface pool containing water, but which has as its primary use, the collection and storage of wastes.
- Waste PreventionDesign chemical syntheses to prevent waste. Leave no waste to treat or clean up.
- Waste Reduction1. Using source reduction, recycling, or composting to prevent or reduce waste generation.
- Waste Solidification1. Any physical or chemical process used to either reduce the mobility of hazardous constitutents in a...
- Waste Stabilization1. Any physical or chemical process used to either reduce the mobility of hazardous constituents in a...
- Waste Storage TankA reservoir intended to hold stormwater, combined, sanitary, or industrial wastewater when temporary storage...
- Waste Stream1. Refers to the total flow of solid waste from homes, businesses, institutions, and manufacturing plants...
- Waste System Closure PlanPlan for closure prepared in accordance with the requirements of § 267.112.
- Waste System Replacement UnitLandfill, surface impoundment, or waste pile unit (1) from which all or substantially all of the waste is...
- Waste Thermal ProcessingProcessing of waste material by means of heat.
- Waste Thermal Processing FacilityAll thermal processing equipment, buildings, and grounds at a specific site.
- Waste Thermal TreatmentTreatment of hazardous waste in a device which uses elevated temperatures as the primary means to change the...
- Waste Transfer EquipmentEquipment and vehicles used to move waste from one place to another.
- Waste Treatment Lagoon1. Impoundment made by excavation or earth fill for biological treatment of wastewater.
- Waste Treatment PlantA facility containing a series of tanks, screens, filters and other processes by which pollutants are removed...
- Waste Treatment Process1. Process in which an off-site material stream is physically, chemically, thermally, or biologically treated...
- Waste Treatment StreamThe continuous movement of waste from generator to treater and disposer.
- Waste Treatment System1. Including treatment ponds or lagoons designed to meet the requirements of CWA (other than cooling ponds as...
- Waste WaterWater carrying wastes from homes, businesses and industries that is a mixture of water and dissolved or...
- Waste Within Generator ControlThat the non-hazardous secondary material is generated and burned in combustion units at the generating...
- WASTELANThe most current version of CERCLIS, the database that houses all Superfund site information. Also referred...
- Wasteload Allocation1. The portion of a receiving water's loading capacity that is allocated to one of its existing or future...
- Waste-to-Energy1. The process of burning solid waste, landfill gas, tires, or other forms of waste to produce heat or...
- Waste-to-Energy Facility1. Facility where recovered municipal solid waste is converted into a usable form of energy, usually via...
- Waste-To-Energy Facility/CombustorRefers to a facility where recovered municipal solid waste is converted into a usable form of energy, usually...
- Waste-to-Energy Incinerator1. A process unit designed to burn solid, liquid, or gaseous materials under controlled conditions to reduce...
- Waste-to-ProfitThe process of using one company's waste or byproduct as the input or raw material for another company...
- Wastewater1. The spent or used water from a home, community, farm, or industry that contains dissolved or suspended...
- Wastewater Discharge1. Water phase that is discharged from the separator in a wastewater treatment system.
- Wastewater DisposalGetting rid of water containing potential contaminants, such as human excreta, food waste and other wastes.
- Wastewater Flow Pollutant CategoryAll wastewater flow parameters for measuring wastewater flows in millions of gallons per day, gallons per...
- Wastewater Infrastructure1. The plan or network for the collection, treatment, and disposal of sewage in a community. The level of...
- Wastewater Operations and MaintenanceActions taken after construction to ensure that facilities constructed to treat wastewater will be operated...
- Wastewater PipePipe for draining wastewater or water-borne wastes,
- Wastewater Reference Control Technology(i) Controls specified in §§ 63.133 through 63.137; (ii) A steam stripper meeting the specifications of §...
- Wastewater ResidualThe solids generated or retained during the treatment of wastewater.
- Wastewater Stream1. Stream that contains wastewater.
- Wastewater Stream in Chloroprene ServiceWastewater stream in a process at affected sources producing neoprene that contains total annual average...
- Wastewater System1. Any component, piece of equipment, or installation that receives, treats, or processes oily wastewater...
- Wastewater Tank1. Stationary waste management unit that is designed to contain an accumulation of wastewater or residuals...
- Wastewater TreatmentChemical, biological, and mechanical procedures applied to an industrial or municipal discharge or to any...
- Wastewater Treatment PlanA facility containing a series of tanks, screens, filters, and other processes by which pollutants are...
- Wastewater Treatment Plant1. A facility containing a series of tanks, screens, filters, and other processes by which pollutants are...
- Wastewater Treatment Process1. Chemical, biological, and mechanical procedures applied to an industrial or municipal discharge or to any...
- Wastewater Treatment System1. Assortment of devices in which the solvent/water mixture, generated when the carbon bed in the carbon...
- Wastewater Treatment TankTank that is designed to receive and treat an influent wastewater through physical, chemical, or biological...
- Wastewater Treatment Unit1. Device which:(1) Is part of a wastewater treatment facility that is subject to regulation under either...
- Wastewater Treatment UnitsTanks or tank systems that treat hazardous wastewaters and discharge them pursuant to CWA.
- WastewayWaterway used to drain excess irrigation water dumped from the irrigation delivery system.
- Water1. The liquid that descends from the clouds as rain, forms streams, lakes, and seas; and is a major...
- Water AllocationThe division of supplies among competing interests: 1) Among offstream uses. 2) Between offstream and...
- Water barA diversion ditch and/or hump installed across a trail or road to divert runoff from the surface before the...
- Water Bill SurchargeSpecial charge on a water bill used to send customers a specific pricing signal and recover costs associated...
- Water Bodies1. The Water Bodies layer includes area surface features such as ponds, lakes and wide rivers. The water...
- Water Body Designated Use1. Those uses specified in water quality standards for each water body or segment whether or not they are...
- Water, brackishWater body that is transitional from the fresh water and saline water that contain between 1,000 ppm to...
- Water Budget1. A summation of inputs, outputs, and net changes to a water resource system over a period of time.
- Water by UseWater, the substance, categorized by human uses.This excludes agricultural uses.
- Water CatchmentAn area where the natural landscape collects the water.
- Water Clarity1. A measure of the amount of sunlight that can penetrate through the water.
- Water Clarity AcreAn acre of shallow-water bay grass designated-use bottom habitat, located anywhere between the 2-meter depth...
- Water ColumnA hypothetical "cylinder" of water from the surface of a water body to the bottom and within which physical...
- Water Column LayerThe vertical layers in an oceanic column of water
- WATER COLUMN STUDYInvestigation of water-borne PCBs to characterize their sources, movement, and distribution.
- Water ConservationAny beneficial reduction in water losses, waste, or use.
- Water Control Structure1. Any device intended to alter or control the flow of a fluid. Typical control structures include, but are...
- Water Current1. That portion of a stream of water which is moving with a velocity much greater than the average or in...
- Water Curtain1. APCD that draws the exhaust stream through a continuous curtain of moving water to remove suspended...
- Water Customer ClassGroup of customers (residential, commercial, industrial, wholesale, and so on) defined by similar costs of...
- Water Cycle1. The process, also known as the hydrologic cycle, in which water travels in a sequence from the air through...
- Water Deficit DisordersWater deficit develops as a normal phenomenon in plants when water loss by transpiration exceeds the rate of...
- Water Dischargers (NPDES)As authorized by the Clean Water Act, the National Pollutant Discharge Elimination System (NPDES)...
- Water Disinfection By-ProductSubstances formed in water during the reaction of a disinfectant with naturally present organic matter. [MK]
- Water Disinfection TechnologyA process used to control waterborne diseases by inactivating the pathogenic microorganisms in the water ...
- Water DistributionSupplying water to multiple users through the infrastructure of a water system.
- Water Distribution and Storage SystemA system which delivers potable water to many end users and has a source of water, a treatment plant to make...
- Water Distribution InfrastructureThe basic physical framework required to move quantities of water
- Water Distribution SystemSystem to connect water treatment plants or water sources (in the absence of treatment) to customers via a...
- Water Distribution System AttackIn addition to contamination incidents, attacks on water systems involving explosives are possible.
- water diversionTransfer of water from one watershed to another, usually involving dams and tunnels.
- Water DropletA typical water droplet existing in a cloud has an approximate diameter of 20 microns.
- Water Droplet Coalescence1. The process by which water droplets in a cloud collide and come together to form raindrops.
- Water Droplet CondensationAfter the initiation stage, no more new particles are created and the excess vapor (the amount above the...
- Water Energy NexusRelationship between energy and water resources
- Water (environmental media)Emissions or resources that exist in a liquid phase [Original source...
- Water factorThe number of gallons per cycle per cubic foot that a clothes washer uses.
- Water (flow class)Forms of water (H2O) classified by salinity [Original source...
- Water, freshWater body with less than 1,000 parts per million (ppm) dissolved salt [Original source...
- Water HammerThe sound like someone hammering on a pipe that occurs when a valve is opened or closed very rapidly. When a...
- Water Hold-Out CoatingCoating applied to the interior cavity areas of doors, quarter panels and rocker panels for the purpose of...
- Water ImpairmentDredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes...
- Water Information Sharing and Analysis CenterAn information service developed to provide the nation's drinking water and wastewater utility personnel with...
- Water Infrastructure DecontaminationInactivation or reduction of water infrastructure contaminants by physical, chemical or other methods to meet...
- Water Jet Weaving ProcessInternal subdivision of the low water use processing subcategory for facilities primarily engaged in...
- Water LevelWater Level (Gage Height)
- Water Level GageA device that facilitates the measurement of the level, or stage, of the upper surface of water in a...
- Water Level GaugeA device that facilitates the measurement of the level, or stage, of the upper surface of water in a...
- Water Level RecorderThe stage of a water body is the elevation of the water surface relative to some datum. Stage is synonymous...
- Water LossMetered source water less revenue-producing water and authorized unmetered water uses.
- Water MainMain pipe in a water distribution system.
- Water MassRefers to a parcel of water with homogeneous properties (e.g., chemical, physical). If no other hydroform...
- Water Model1. Hydrographic model
- Water MoldUsually vascular plant parasites, in spite of their resemblance to fungi, they are more closely related to...
- Water Monitoring & ForecastingThe monitoring of surface water, including marine environments, to assess current environmental water quality...
- Water Monitoring SystemMonitors significant changes in water quality as required by state and federal laws.
- Water Mycotoxin ContaminantFungal contamination of drinking water.
- Water PermittingTerms associated with EPA regulation of water pollutants.
- Water Plant OperatorThe employee who oversees a treatment plant that removes contaminants and monitors water quality, providing...
- Water PollutantThe term pollutant is defined in CWA section 502(6) and § 122.2. The statute defines pollutant very broadly...
- Water Pollution1. The addition of sewage, industrial wastes or other harmful or objectionable material to water in...
- Water Pollution SourceAny building, structure, facility, or installation from which there is or may be the discharge of toxic...
- Water PondingWater that has collected in an area that it should not stay, such as a roof or driveway, due to ineffective...
- Water PoolPools are deep areas of flow that occur at the apex of meanders. Channel cross sections are asymmetrical in...
- Water Protection Task ForceEstablished in 2001, the Task Force was the predecessor of the Water Security Division. The Task Force...
- Water Purveyor1. (purr-VAY-or) An agency or person that supplies water (usually potable water).
- Water Quality1. The biological, chemical, and physical conditions of a waterbody. It is a measure of a waterbody's ability...
- Water Quality Based-Effluent LimitationAn effluent limitation determined by selecting the most stringent of the effluent limits calculated using all...
- Water Quality ControlThe regulation of any activities or environmental or human-made factors that may affect the quality of water...
- Water Quality Criteria1. Levels of water quality expected to render a body of water suitable for its designated use. Criteria are...
- Water Quality Data BaseEPA's computerized STOrage and RETrieval water quality data base that includes physical, chemical, and...
- Water Quality ExchangeAn Exchange Network data exchange that allows Network partners to share ambient water quality data with the...
- Water Quality ImprovementImprovement in the degree to which the water is free from harmful pollution.
- Water Quality Limited Segment1. Any segment where it is known that water quality does not meet applicable water quality standards, and/or...
- Water Quality Management PlanA State or areawide waste treatment management plan developed and updated in accordance with the provisions...
- Water quality modelingA system of mathematical expressions that describe both hydrologic and water quality processes. When used for...
- Water Quality ProtectionProcedures to guard the health of the chemical, physical, biological, radiological, and other properties and...
- Water Quality RequirementLimitation, standard, or other requirement under sections 301, 302, 303, 306, and 307 of the Clean Water Act...
- Water Quality Standard1. The combination of a designated use and the maximum concentration of a pollutant which will protect that...
- Water Quality Standards1. State-adopted and EPA-approved ambient standards for waterbodies. The standards prescribe the use of the...
- Water Quality Standards VarianceTime-limited designated use and criterion for a specific pollutant(s) or water quality parameter(s) that...
- water quality targetTargets used in developing nutrient criteria to quantitatively define the level of nutrients that represents...
- Water quality targets (in the context of nutrient criteria)Targets used in developing nutrient criteria to quantitatively define the level of nutrients that represents...
- Water Quality TradingAn innovative approach to achieve water quality goals more efficiently. The foundations of trading are that a...
- Water Quality-Based Effluent LimitA value determined by selecting the most stringent of the effluent limits calculated using all applicable...
- Water Quality-Based Effluent LimitationsEffluent limitations applied to dischargers when mere technology-based limitations would cause violations of...
- Water Quality-Based LimitationEffluent limitations applied to dischargers when mere technology-based limitations would cause violations of...
- Water Quality-Based LimitationsEffluent limitations applied to dischargers when mere technology-based limitations would cause violations of...
- Water Quality-Based Permit1. A permit with an effluent limit more stringent than one based on technology performance. Such limits may...
- Water Quality-Limited Segments1. Those water segments which do not or are not expected to meet applicable water quality standards even...
- Water ReclamationThe treatment of waste water to ensure it is suitable for safe reuse.
- Water Reducible CoatingAny coating that contains more than 5 percent water by weight as applied in its volatile fraction.
- Water Reference LevelLevel specified in paragraph (1) or (2) of this definition, whichever is lower.(1) Ten percent of the maximum...
- Water Regulatory LocalityGeographic area which is defined for water regulatory purposes.
- Water Reservoir1. A body of water impounded by a dam and in which water can be stored.
- Water ReuseProvision of reclaimed wastewater for use as an alternative to conventional water supplies.
- Water RightA property right or legal claim to withdraw a specified amount of water in a specified time frame for a...
- Water Rights1. The right to use water from a source
- Water, salineWater body with greater than 10,000ppm to 35,000 ppm dissolved salt [Original source...
- Water Salinity1. The degree of salt in water. [NASA Sustainable Development Indicators Glossary]
- Water SealSeal pot, p-leg trap, or other type of trap filled with water (e.g., flooded sewers that maintain liquid...
- Water Seal Control1. Seal pot, p-leg trap, or other type of trap filled with water that has a design capability to create a...
- Water SecurityActions taken to assess and reduce consequences, threats, and vulnerabilities to potential terrorist attacks...
- Water SeparatorAny device used to recover perchloroethylene from a water-perchloroethylene mixture.
- Water ShedderApplying a dilute water-based chemical compound to a part to accelerate drying. This operation typically is...
- Water Side EconomizerA water side economizer reduces energy consumption in cooling mode by allowing the chiller to be turned off...
- Water Solubility1. The maximum concentration of a chemical compound which can result when it is dissolved in water. If a...
- Water Soluble ChemicalChemical substances easily dissolved in water
- Water SourceThe primary source of water for the water system. Includes: Intake, Well, Reservoir, or Spring.
- Water SpoutIn general, a tornado occurring over water. Specifically, it normally refers to a small, relatively weak...
- Water Stage RecorderThe stage of a water body is the elevation of the water surface relative to some datum. Stage is synonymous...
- Water StorageFacility in which quantities of water are saved for future use
- Water Storage Pond1. An impound for liquid wastes, so designated as to accomplish some degree of biochemical treatment of the...
- Water StressCondition of plants where water is scarce and and hydration needs are not met, such as in droughts.
- Water Stress EffectThe closing of the stomata by a plant in response to excessive water loss through transpiration or in...
- Water Supplier1. A person who owns or operates a public water system.
- Water Supply and Irrigation SystemsThis industry comprises establishments primarily engaged in operating water treatment plants and/or operating...
- Water Supply ProtectionActions and activities to prevent the pollution of sources of water (such as rivers, streams, lakes...
- Water Supply ReservoirAny natural or artificial holding area used to store, regulate, or control water.
- Water Supply System1. The collection, treatment, storage, and distribution of potable water from source to consumer.
- Water System Vulnerability AssessmentAn assessment to determine the vulnerability of a water system to a terrorist attack or other intentional...
- Water Table1. The boundary between the saturated and unsaturated zones. Generally, the level to which water will rise in...
- Water Table AquiferAn unconfined aquifer in which the water table can rise and fall.
- Water Temperature1. Changes in average water temperature.
- Water TransmissionThe movement of water from its collection to a treatment facility
- Water Transmission FacilityPipes used to transport raw or treated water to distribution facilities.
- Water Transmission LineA pipeline that transports raw water from its source to a water treatment plant. After treatment, water is...
- Water Transportation1. Industries in the Water Transportation subsector provide water transportation of passengers and cargo...
- Water Treatment Chemical1. Chemicals used to treat drinking water including disinfectants and anti-corrosion chemicals to inhibit the...
- Water Treatment Lagoon1. An impound for liquid wastes, so designed as to accomplish some degree of biochemical treatment of the...
- water treatment residuals additionThe addition of iron-rich or aluminum-rich drinking water treatment residuals (WTR) to soils to bind with...
- Water Treatment TechnologyEquipment, methods and processes used to treat the aquatic environment when it has already been polluted or...
- Water TurnoutA drainage ditch that drains water away from roads and road ditches.
- Water TypeAn Assessment Unit must have at least one water type, and it may have multiple water types.
- Water UseWater that is used for a specific purpose, such as for domestic use, irrigation, or industrial processing...
- Water Use BudgetAccounting of total water use or projected water use for a given location or activity.
- Water User ClassGroup of customers (residential, commercial, industrial, wholesale, and so on) defined by similar costs of...
- Water Vapor1. Water diffused as a gas in the atmosphere.
- Water Vapor FeedbackA process in which an increase in the amount of water vapor increases the atmosphere's absorption of longwave...
- Water Vascular SystemIn echinoderms, a system of internal canals and appendages that are water-filled and functions as a means of...
- Water Wave1. A disturbance of the surface of a liquid body, as the ocean, in the form of a ridge, swell or hump.
- Water Well1. An excavation where the intended use is for the location, acquisition, development, or artificial recharge...
- Water Well MonitoringMeasurement, by on-site instruments or laboratory methods, of the quality of water in a well.
- Water withdrawal1. The process of taking water from a source and conveying it to a place for a particular type of use.
- Water Withdrawal Rotation ProgramProgram in which particular surface water intakes within a water supply system are used only for specified...
- Water-Absorbing PolymerPolymeric substance that is capable of absorbing its weight of water.
- Water-Based Drilling FluidContinuous phase and suspending medium for solids is a water-miscible fluid, regardless of the presence of...
- Water-Based Green Tire SprayAny mold release agent and lubricant applied to the inside or outside of green tires that contains 12 percent...
- Waterbody1. Any type of surface water, such as a stream, lake, or wetland.
- Waterbody UseA waterbody or a segment of a waterbody can have many uses. Typical uses include public water supplies...
- Waterborne Chemical ContaminationIntroduction into surface or groundwaters of chemicals in a concentration that makes the medium unfit for its...
- Waterborne Coating1. Coating which contains more than 5 weight percent water in its volatile fraction.
- Waterborne diseaseA disease caused by bacteria or other organisms that live in water. A person can get a waterborne disease if...
- Waterborne Disease Outbreak1. The significant occurrence of acute infectious illness, epidemiologically associated with the ingestion of...
- Waterborne DiseasesDiseases caused by bacteria or other organisms that live in water. A person can get a waterborne disease if...
- Waterborne FungusFungus that lives and thrives in water, such as lakes and ponds.
- Waterborne Ink SystemInk and related coating mixtures whose volatile portion consists of a mixture of VOC solvent and more than...
- Waterborne Pathogenic MicroorganismA microorganism capable of causing disease that may be transmitted via water and acquired through ingestion...
- WatercourseA definite channel with bed and banks within which concentrated water flows continuously, frequently or...
- Waterfowl1. Any of various birds that swim on water or rely on aquatic environments, including ducks, geese and swans.
- Watering PointWater supply, methods, and facilities used for the delivery of finished water to the aircraft. These...
- Waterproofing Sealer and TreatmentCoating formulated and recommended for application to a porous substrate for the primary purpose of...
- Water-Related RecreationEncompasses activities undertaken for amusement and relaxation. Activities encompass two broad categories of...
- Waters of the United States1. All waters which are currently used, were used in the past, or may be susceptible to us in interstate or...
- Waters Subject to UNDSNavigable waters of the United States, including the territorial seas and the waters of the contiguous zone...
- Watershed1. Land area that delivers runoff water, sediment, and dissolved substances to a major river and its...
- Watershed Approach1. A coordinated framework for environmental management that focuses public and private efforts on the...
- Watershed AreaA topographic area within a line drawn connecting the highest points uphill of a drinking water intake into...
- Watershed Boundary DatasetThe Watershed Boundary Dataset (WBD) defines the areal extent of surface water drainage to a point...
- Watershed Definitions for Streams"A region or area bounded peripherally by a water parting and draining ultimately to a particular watercourse...
- Watershed Management1. A holistic approach applied within an area defined by hydrological, not political, boundaries, integrating...
- Watershed Management PlanA strategy and/or work plan for achieving water resource goals that provides assessment and management...
- Watershed Names (HUC 12)HUC12 is a local sub-watershed level (~90,000 HUC12 watersheds nationwide). How's My Waterway uses HUC12...
- Watershed plan1. A document that provides assessment and management information for a geographically defined watershed...
- Watershed ProcessA natural system of interactions in the environment (e.g., water movement, erosion, nutrient cycling).
- Watershed Protection Approach1. The USEPA's comprehensive approach to managing water resource areas, such as river basins, watersheds, and...
- Watershed RestorationThe action of restoring the total land area that contributes water to a river, stream, lake or other body of...
- Watershed StorageThe capacity of an area to store precipitation in the snowpack, lakes, wetlands, and groundwater.
- Watershed-Based PermittingAn approach that produces permits that are issued to point sources on a geographic or watershed basis to meet...
- Watershed-Based TradingWatershed-based trading is an efficient, market-driven approach that encourages innovation in meeting water...
- WatershedsThe land area that drains into a stream; the watershed for a major river may encompass a number of smaller...
- Watershed-Scale ApproachA consideration of the entire watershed, including the land mass that drains into the aquatic ecosystem.
- Water-Soluble PackagingPackaging that dissolves in water; used to reduce exposure risks to pesticide mixers and loaders.
- Water-Source Heat PumpHeat pump that uses wells or heat exchangers to transfer heat from water to the inside of a building. Most...
- Waterwall Furnace1. Combustion unit having energy (heat) recovery in the furnace (i.e., radiant heat transfer section) of the...
- Waterwash System1. Control system that utilizes flowing water (i.e., a conventional waterwash system) or a pumpless system to...
- Watt1. A watt is the absolute unit of power equal to the work done at the rate of one joule per second.
- Wave EnergyWave power devices extract energy directly from the surface motion of powerful ocean waves or from pressure...
- Wave Energy Capture DeviceCan be considered a fully submerged point absorber; a pressure differential is induced within the device as...
- Wave PowerElectrical energy obtained by exploiting the energy in the action of ocean waves
- wave run-upThe upper levels reached by a wave on a beach or coastal structure, relative to still-water level.
- Wave-Built TerraceA subaqueous, relict, depositional landform originally constructed by river or longshore, sediment deposits...
- Wave-Cut PlatformA gently sloping surface produced by wave erosion, which extends into the sea or lake from the base of the...
- wave-dominatedA barrier or coastal area where the geomorphology is primarily a product of wave processes.
- Wave-Dominated BeachBeaches that are exposed to persistent ocean swell, waves, and low tides (range of less than 2 meters)...
- Wave-Driven CurrentResidual current caused by asymmetrical force created by wave motion.
- WavefrontThe wave front is the instantaneous boundary between the seismic waves in the earth material, and the...
- Wavelength1. The length of one complete wave of an alternating or vibrating phenomenon, generally measured from crest...
- wavesRegular or irregular disturbances in or on the surface of a water body that form characteristic shapes and...
- Wax1. Organic mixture or compound with low melting point and high molecular weight, which is solid at room...
- WaxesSolid or semisolid materials derived from petroleum distillates or residues. Light-colored, more or less...
- Weak Liquor Storage TankAny storage tank except washer filtrate tanks containing spent liquor recovered from the pulping process and...
- Weak Nitric AcidAcid which is 30 to 70 percent in strength.
- WeaningThe process of removing the pigs from the sow and moving them to the nursery.
- WeanlingA young animal that is independent of his mother for nourishment
- Weapon of Mass Destruction AttackAttack using any explosive, incendiary, or poison gas, bomb, grenade, rocket having a propellant charge of...
- Weaponized AnthraxIf a bioterrorist attack were to happen, Bacillus anthracis, the bacteria that causes anthrax, would be one...
- Weather1. The condition of the atmosphere at a particular place and time. Some familiar characteristics of the...
- Weather EmergencyThose emergencies caused by weather conditions.
- Weather ForecastingScientific prediction of weather behavior and activity withing a geographic area over a certain period of...
- Weather Front TypeA boundary or transition zone between two air masses of different density, and thus (usually) of different...
- Weather NormalizationWater demand, revenues, or other variables adjusted to a "normal" weather year
- Weather Research and Forecasting ModelA computer weather-prediction system for atmospheric research and weather forecasting. Learn more about WRF...
- Weather-Adjusted1. Water demand, revenues, or other variables adjusted to a "normal" weather year; also known as weather...
- weathering1. The process during which a complex compound is reduced to its simpler component parts, transported via...
- WeatherizationEnergy efficiency improvement measures for homes, including a wide variety of measures that encompass the...
- Weatherized HomeEnergy efficiency improvement measures for homes, including a wide variety of measures that encompass the...
- Web 2.0This term is used to describe the collaborative and user-driven ways in which people use the internet and...
- Web (Animal)The webs created by spiders and other spinning arthropods.
- Web ClientSoftware applications, typically browsers, that access information which is typically distributed over the...
- Web ClientsSoftware applications, typically browsers, that access information which is typically distributed over the...
- Web CoatingCoating of products, such as fabric, paper, plastic film, metallic foil, metal coil, cord, and yarn, that are...
- Web Coating Line1. Any number of work stations, of which one or more applies a continuous layer of coating material across...
- Web Information Service1. A home page and linked subordinate content, whether on the same server or other Internet sites. A Web...
- Web PageDocument or information resource available on the Internet, accessed through a Web browser or on a local...
- Web PortalA web page that includes availability and access information for other resources.
- Web ServerA World Wide Web Server is a computer which provides access to one or more collections of documents using...
- Web ServiceSoftware system designed to support interoperable machine-to-machine interaction over a network. It may use...
- Web Services1. Web Services refers to the technologies that allow for making connections. Services are what you connect...
- Web SubstrateContinuous substrate (e.g., paper, film, foil) which is flexible enough to be wound or unwound as rolls.
- Web TaxonomyA taxonomy used by the Environmental Protection Agency (EPA) to classify content in its web pages.
- Webbing/Veiling CoatingCoating designed and labeled exclusively to provide a stranded to spider webbed appearance when applied.
- Weberian ApparatusThe four anterior vertebrae and associated tissues in some fishes (catfishes, loaches, minnows, suckers) that...
- WebinarAn online seminar that might contain audio and video.
- WebmasterEach Web server has a Webmaster -- an individual with primary responsibility for the server. By convention...
- WebMethodsAn enterprise software suite of tools used on application integration, business process integration and...
- WebpageThis includes webpages with links on adaptation and resilience resources.
- Web-safe colorsColor palette consisting of a collection of 216 colors which remain consistent across Macintosh and Windows...
- WebsiteA collection of related webpages.
- Weed1. Any undesirable or troublesome plant, especially one that grows profusely where it is not wanted.
- Weekly Average1. Sum of all values measured in a calendar week divided by the number of measurements.
- WeibullForm of a dose-response curve characterized by a relatively shallow slope at low doses that increases sharply...
- Weibull DistributionForm of a dose-response curve characterized by a relatively shallow slope at low doses that increases sharply...
- Weibull Model1. A dose-response model.
- Weight FractionWeight of an ingredient divided by the total net weight of the product, expressed to thousandths of a gram of...
- Weight of evidenceWeight of evidence (WOE) category. Based on the quality and adequacy of data on carcinogenicity, EPA places a...
- Weight of Scientific Evidence1. Considerations in assessing the interpretation of published information about toxicity--quality of testing...
- Weighted Arithmetic MeanArithmetic mean of sample results weighted by the number of subsamples in each sample. Its purpose is to give...
- Weighted Least Squares EstimateParameter estimate obtained by minimizing the sum of squares of observed and estimated values weighted by a...
- weighted usable areaThe total surface area having a certain combination of hydraulic and substrate conditions, multiplied by the...
- WeightingThe act of assigning subjective, value-based weighting factors to the different impact categories based on...
- Weight-of-Evidence for Carcinogenicity1. A system used by the U.S. EPA for characterizing the extent to which the available data support the...
- WeightsIn a probability sample, the sample weights are the inverses of the inclusion probabilities; these are always...
- Weir1. (weer) A wall or plate placed in an open channel and used to measure the flow of water. The depth of the...
- Weir Diameter(weer) Many circular clarifiers have a circular weir within the outside edge of the clarifier. All the water...
- Weir LoadingA guideline used to determine the length of weir needed on settling tanks and clarifiers in treatment plants...
- WelderUse hand-welding, flame-cutting, hand soldering, or brazing equipment to weld or join metal components or to...
- Welding1. Process which joins two metal parts by melting the parts at the joint and filling the space with molten...
- Welding RodFlux-coated metal wire used to join metals together during the process of welding.
- Welding Rod Containing MFHAPWelding rod that contains cadmium, chromium, lead, or nickel in amounts greater than or equal to 0.1 percent...
- Weld-Through Preconstruction Primer (Specialty Coating)Coating that provides corrosion protection for steel during inventory, is typically applied at less than 1...
- Weld-Through Primer1. Primer that is applied to an area before welding is performed, and that provides corrosion resistance to...
- Well1. A bored, drilled, or driven shaft, or a dug hole, whose depth is greater than the largest surface...
- Well Blowout1. An uncontrolled flow of gas, oil, or other fluids from a well to the atmosphere. A well may blow out when...
- Well capA tight-fitting, vermin-proof seal designed to prevent contaminants from flowing down inside of the well...
- Well casingThe tubular lining of a well. Also a steel or plastic pipe installed during construction to prevent collapse...
- Well Completion1. Casing is installed and cemented and the drilling rig is dismantled and moved to the next site. A service...
- Well Completion FluidSalt solutions, weighted brines, polymers, and various additives used to prevent damage to the well bore...
- Well Completion OperationAny oil and natural gas well completion using hydraulic fracturing occurring at an oil and natural gas...
- Well Completion VesselVessel that contains flowback during a well completion operation following hydraulic fracturing or...
- Well ControlConsists of two basic components: an active component consisting of drilling fluid pressure monitoring...
- Well DrillingCreation of a borehole by drilling.
- Well Field1. Area containing one or more wells that produces usable amount of water.
- Well filesFiles that generally contain information regarding all activities conducted at an oil and gas production...
- Well Injection1. The subsurface emplacement of fluids into a well.
- Well Log1. A record describing geologic formations and well testing or development techniques used during well...
- Well LoggingUsed to identify formation and other downhole properties of the well bore.
- Well Maintenance ActivityProcesses needed to keep a well functioning.
- Well Monitoring1. The measurement, by on-site instruments or laboratory methods, of the quality of water in a well.
- Well operatorA company that ultimately controls and operates oil and gas wells.
- Well PackerDevice lowered into a well to produce a fluid-tight seal.
- Well Plug1. A watertight and gastight seal installed in a bore hole or well to prevent movement of fluids.
- well point1. A hollow vertical tube, rod, or pipe terminating in a perforated pointed shoe and fitted with a fine-mesh...
- Well ProjectGroup of wells in a single operation.[40 CFR 146.3 (CFR 2018)]
- Well Recompletion OperationAny oil and natural gas well completion using hydraulic refracturing occurring at an oil and natural gas...
- Well ReleaseShort duration of uncontrolled emissions release from a well followed by a period of controlled emissions...
- Well ServicingServicing operations assumes that the well has been completed and initial production has begun.All servicing...
- Well SiteOne or more surface sites that are constructed for the drilling and subsequent operation of any oil well...
- Well Site PreparationFor an oil and gas well, in most instances, looks like any other construction site.
- Well Stimulation1. Involves techniques to optimize well performance. This may include pumping of acids, energized fluids, and...
- Well Testing Venting and FlaringVenting and/or flaring of natural gas at the time the production rate of a well is determined for regulatory...
- Well TransfereeOwner or operator receiving ownership and/or operational control of the well.
- Well TransferorOwner or operator transferring ownership and/or operational control of the well.
- Well Treatment FluidAny fluid used to restore or improve productivity by chemically or physically altering hydrocarbon-bearing...
- Well Workover1. Workover activities include one or more of a variety of remedial operations on a producing well to try to...
- WellboreA hole drilled into the earth for the purpose of exploration or extraction of natural resources such as oil...
- Well-Capture ZoneVolume from which a well pumping at a defined rate is withdrawing water from an aquifer. The dimensions of...
- Well-Characterized Introduced Genetic MaterialThe following have been determined:(1) The function of all of the products expressed from the structural...
- Welldeck DischargeThe water that accumulates from seawater flooding of the docking well (welldeck) of a vessel used to...
- Wellfield Rotation ProgramProgram in which part of a wellfield is used for a given interval of time and then another part is used...
- Wellhead1. The top of a structure built over a well. Term also used for the source of a well or stream.
- Wellhead EquipmentAll equipment, permanent and portable, located on the improved land area (i.e. well pad) surrounding one or...
- Wellhead Only Well SiteWell site that contains one or more wellheads and no major production and processing equipment for the...
- Wellhead ProtectionActivities to ensure that the surface and subsurface zone surrounding a water well or well field keeps...
- Wellhead Protection Area1. A protected surface and subsurface zone surrounding a well or well field that supplies a public water...
- Well-Mixed DomainReaches of estuaries where the tidal flux and/or the river discharge is sufficient to overcome the salt-wedge...
- Well-Mixed EstuaryIn this circulation type, tidal fluctuations dominate, and the water column is mixed vertically.
- Well-Pad SiteEquipment on or associated with a single well-pad. Specifically, the well-pad site includes all equipment on...
- West Nile FeverMosquito-borne viral illness caused by the West Nile virus, a flavivirus and endemic to regions of Africa...
- West Nile VirusA species of Flavivirus, one of the Japanese encephalitis virus group ( Encephalitis viruses, Japanese). It...
- Westerly Wind BeltRegions where the winds blow from west to east. These regions are on the polar sides of the trade winds in...
- Western Blot1. Western blotting is a laboratory technique used to detect a specific protein in a blood or tissue sample...
- Western Coal Mining OperationSurface or underground coal mining operation located in the interior western United States, west of the 100th...
- Western EuropeScope Note: Use for region comprised of Portugal, Spain, France, Andorra, Luxembourg, Switzerland...
- Western Lake ErieThe drainage into Lake Erie from the Huron River Basin boundary to and including the Vermilion River Basin...
- Western Lake SuperiorThe drainage into Lake Superior within the United States from the Ontario- Minnesota international boundary...
- Western Regional Air PartnershipAn RPO consisting of Western states.
- Western Vernal PoolSeasonal wetlands located in parts of California and associated with topographic depression, soils with poor...
- Wet Air Cleaning SystemSteelmaking air cleaning systems that primarily use water for furnace gas cleaning.
- Wet Air Pollution ControlUsing water to remove chemicals, fumes, or dusts that are entrained in air streams exhausted from process...
- Wet Air Pollution Control ScrubberAir pollution control devices used to remove particulates and fumes from air by entraining the pollutants in...
- Wet Air Pollution Control SystemEmission control system that utilizes water to clean process or furnace off-gases.
- Wet Atmospheric ConvectionConvective process that produces clouds/rainfall.
- Wet BarkingWet barking operations shall be defined to include hydraulic barking operations and wet drum barking...
- Wet Bottom BoilerWet bottom wall-fired boilers, including wet bottom turbo-fired boilers; and wet bottom boilers otherwise...
- Wet Bottom FurnaceAsh is removed from the furnace in a molten state.
- Wet CastUsing a concrete mix that is wet instead of the more commonly used dry mix. Used to make pipes and other...
- Wet ChemistryLaboratory procedures used to analyze a sample of water using liquid chemical solutions (wet) instead of, or...
- Wet Control DeviceAny equipment that uses water as a means of collecting an air pollutant. Wet control devices include...
- Wet deposition1. Pollutants in the air that fall onto the land or water with rain or snow.
- Wet Desulfurization SystemSystems that remove sulfur compounds from coke oven gases and produce a contaminated process wastewater.
- Wet Disposable Cleaning ClothCommercially available, pre-moistened white disposable cloth designed to be used for cleaning hard surfaces...
- Wet Drill CuttingsUnaltered drill cuttings and adhering drilling fluid and formation oil carried out from the wellbore with the...
- Wet Electrostatic Precipitator1. Air pollution control device that uses both electrical forces and water to remove pollutants in the exit...
- Wet Fastener Installation CoatingPrimer or sealant applied by dipping, brushing, or daubing to fasteners that are installed before the coating...
- Wet FinishingScreeding, floating, troweling, patching, rubbing, and cleaning surfaces not in contact with the form.
- Wet Floodproofing1. Floodproofing technique in which a building is sealed such that floodwaters cannot get inside the...
- Wet Flue Gas Desulfurization TechnologyAny add-on air pollution control device that is located downstream of the steam generating unit that mixes an...
- Wet FormingProcess of making a slurry of water, fiber, and additives into a mat of fibers to be compressed into a...
- Wet LaboratoryLaboratory where chemicals, drugs, or other material or biological matter is tested and analyzed, and which...
- Wet LooperSeries of rollers typically following the saturator used to provide additional absorption time for asphalt to...
- Wet LotConfinement facility for raising ducks which is open to the environment, has a small number of sheltered...
- Wet Material Processing OperationAny of the following:(1) Wet screening operations (as defined in this section) and subsequent screening...
- Wet meadowA type of marsh that commonly occurs in poorly drained areas such as shallow lake basins, low-lying farmland...
- Wet MillingProcess in which shelled corn is steeped in a dilute solution of sulfurous acid (sulfur dioxide dissolved in...
- Wet Mining OperationMining or dredging operation designed and operated to extract any nonmetallic mineral regulated under this...
- Wet MixtureWater or organic solvent-based suspension, solution, dispersion, or emulsion used in the manufacture of an...
- Wet Mopping SystemDevice with the following characteristics: A long handle, a mop head designed to be used with disposable...
- Wet Natural Gas1. A gas containing a relatively high proportion of hydrocarbons that are recoverable as liquids.
- Wet Packed ScrubberThis type of technology is a part of the group of air pollution controls collectively referred to as “wet...
- Wet Particulate Control DeviceAir pollution control device that uses water or other liquid to contact and remove particulate matter in the...
- Wet Pond1. Pond for urban runoff management that is designed to detain urban runoff and always contains water.
- Wet Refuse-Derived Fuel Process ConversionCombustion unit that was converted from a wet refuse-derived fuel process to a dry refuse-derived fuel...
- Wet Screening OperationScreening operation at a nonmetallic mineral processing plant which removes unwanted material or which...
- Wet Scrubber1. Add-on air pollution control device that utilizes an alkaline scrubbing liquor to collect particulate...
- Wet Scrubber SystemAny emission control device that mixes an aqueous stream or slurry with the exhaust gases from a steam...
- Wet SuppressionUse of water, water combined with a chemical surfactant, or a chemical binding agent to prevent the...
- Wet Weather Green InfrastructureInfrastructure associated with stormwater management and low impact development that encompasses approaches...
- Wet Weather Point SourceAny discernible, confined and discrete conveyance from which pollutants are, or may be, discharged as the...
- Wet WeightReporting chemical analysis results by including either the weight, or the volume and density, of all liquids.
- Wetland1. An area where water is at, near, or above the land surface long enough to be capable of supporting aquatic...
- wetland accretion1. A process by which the surface of wetlands increases in elevation; see also accretion.
- Wetland ConservationActivities to protect, restore or enhance wetlands areas, such as bogs, marshes and swamps.
- Wetland delineationThe procedure used to identify and delineate wetlands.
738 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.