Environment terminology · MLC-0121

Environment terms: S (2,959)

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Solvent RecoveryFuel blending operations and the recycling of spent solvents through separation of solvent mixtures in...
Solvent Recovery AreaCollection of devices used to remove HAP emissions from process air, to recover the HAP, and to purify the...
Solvent Recovery DeviceFor the purposes of this subpart, an add-on air pollution control device in which HAP is captured rather than...
Solvent Recovery DryerClass of dry cleaning dryers that employs a condenser to condense and recover solvent vapors evaporated in a...
Solvent Recovery System1. Air pollution control system by which VOC solvent vapors in air or other gases are captured and directed...
Solvent Storage TankStationary tanks that are associated with magnetic tape operations and that store virgin solvent, spent...
Solvent UtilizationUse of solvent that is delivered to coating mix preparation equipment for the purpose of formulating coatings...
Solvent Working CapacityVolume of extraction solvent normally retained in solvent recovery equipment. Examples include components...
Solvent-based inksSet by evaporation of the ink oil at elevated temperatures.
Solvent-Based ResinAmino/phenolic resin that consumes a solvent (i.e., methanol, xylene) as a reactant in the resin producing...
Solvent-Borne CoatingCoating which contains five percent or less water by weight in its volatile fraction.
Solvent-Borne Ink SystemInk and related coating mixtures whose volatile portion consists essentially of VOC solvent with not more...
Solvent-Free ProcessChemical process carried out without the use of a solvent
Solvents1. Chemical products that are used to dissolve other compounds; typically found in cleaners and used in...
Solvent-Spun Synthetic FiberAny synthetic fiber produced by a process that uses an organic solvent in the spinning solution, the...
Solvent-Spun Synthetic Fiber ProcessTotal of all equipment having a common spinning solution preparation system or a common solvent recovery...
Somatic Cell1. Any body cell other than gametes (egg or sperm); sometimes referred to as "adult" cells.
Somatic Cell CountThe number of white blood cells per milliliter of milk or measurement of the number of somatic cells present...
Somatic Cell ScoreA logarithmic representation of the SCC, often referred to as linear scores because they are linearly related...
Somatic CellsThe combination of the leukocytes (white blood cells) from blood and the epithelial cells from the secretory...
Somatostatin-Secreting CellCells found throughout the gastrointestinal tract and in the pancreas. They secrete somatostatin in both an...
Sombric HorizonA sombric horizon (F. sombre, dark) is a subsurface horizon in mineral soils that has formed under free...
Some Other RaceIncludes all other responses not included in the “White,” “Black or African American,” “American Indian or...
Sonar Dome DischargeSome domes that house detection, navigation, and ranging equipment are filled with freshwater and/or seawater...
sondeUsed in horizontal directional drilling, a locating device in the drillhead that transmits wireless radio...
SonesThe sone is a linear unit (measure) of loudness which allows a simplified comparison of fan loudness. For...
SongbirdSmall perching and singing birds, typically of the order Passeriformes, including sparrows, finches, and...
SonoraThe drainage that originates within the United States east of the Colorado River Basin and ultimately...
SootCarbon dust formed by incomplete combustion.
Soot BlowingUsing steam or compressed air to remove carbon from a furnace or from a boiler’s heat transfer surfaces.
Sooty MoldA condition of a dark colored and powdery-like saprophytic fungi that thrive on insect secretions with a high...
Sooty MoldsBlack molds affecting any kind of dead or dying plant tissue.
SorbTo either adsorb or absorb, or both.
Sorbent1. Material that is used to soak up free liquids by either adsorption or absorption, or both.
Sorbent CanisterGas-tight canisters typically filled with activated carbon (charcoal) for collection and transport of vapor...
sorbent canistersGas-tight canisters typically filled with activated carbon (charcoal) for collection and transport of vapor...
Sorbent TubeGlass tubes filled with a sorbent material that reacts chemically with specific organic compounds. Based on...
sorbent tubesGlass tubes filled with a sorbent material that reacts chemically with specific organic compounds. Based on...
SoriCompact fruiting structure of rust and smut fungi.
Sorption1. A general term used to encompass the processes of absorption, adsorption, ion exchange, and chemisorption.
Sorption ProcessAction of soaking up or attracting substances; process used in many pollution control systems.
Sorption (treatment technology category)A physical, chemical, or combined physical-chemical adsorption or absorption process using a resin or other...
SortData in shot record form are sorted for display as common offset records, common shot records, common...
SORTINGIn files management, the process of separating records into groups for filing according to a classification...
Sound1. A relatively long, narrow waterway connecting two larger bodies of water (or two parts of the same water...
Sound Exposure LevelLevel in decibels calculated as ten times the common logarithm of time integral of squared A-weighted sound...
Sound Level1. Level, in decibels, measured by instrumentation which satisfies the requirements of American National...
Sound Pressure Level1. Level, in decibels, calculated as 20 times the common logarithm of the ratio of a sound pressure to the...
sounding1. A general term indicating the recording of vertical measurements. Commonly used to describe vertical...
Sounding TubeA pipe or tube used for measuring the depths of water.
Soundness1. One of EPA's five Assessment Factors (see definition) that describes the extent to which the scientific...
SoupCombination of various fresh and pre-processed meats, fish, dairy products, eggs, flours, starches...
Sour Cherry ProcessingProcessing of all sour varieties of cherries into the following products styles: Frozen and canned, pitted...
Sour GasAny gas that contains significant concentrations of hydrogen sulfide. Sour gas may include untreated fuel...
Sour WaterWater that contains sulfur compounds (usually H2 S) at concentrations of 10 parts per million by weight or...
Source1. An entity or action that releases to the environment or imposes on the environment a chemical, physical...
Source AggregationThe treatment of two or more areas that could be considered individual sources as one discrete source. The...
Source AreaThe location of liquid hydrocarbons or the zone of highest soil or groundwater concentrations, or both, of...
Source Baseline Condition1. Conditions that exist prior to an affected source implementing controls, such as a control system.
Source CategoryA group of similar industrial processes or industries that are contributors to releases of hazardous air...
Source Characterization MeasurementsMeasurements made to estimate the rate of release of pollutants into the environment from a source such as an...
Source Classification Code1. The code that characterizes an emissions process. All emissions in the inventory are associated with an...
Source ConfirmedIndicator of whether the Source has been confirmed.
Source Control1. A method of abating storm-generated or CSO pollution at the upstream, upland source where the pollutants...
Source Control ActionConstruction or installation and start-up of those actions necessary to prevent the continued release of...
Source Control Maintenance MeasureThose measures intended to maintain the effectiveness of source control actions once such actions are...
SOURCE DOCUMENT MICROFILMINGConverting documents, usually paper-based, to microimages.
SOURCE DOCUMENTSDocuments containing images and/or data entered into a microform or electronic records system. Also called...
Source (Drinking Water Source; Source Type)A source of water for a drinking water system. Includes: Intake, Well, Reservoir, or Spring.
Source HabitatA habitat that is a net exporter of individuals (Pulliam 1988:654).
Source Hazardous Waste Quantity Factor ValueThe highest of the values assigned to a source using the four hazardous waste quantity tiers.
Source IdentifierA microbial population that is particular to a specific animal host.
Source Material1. Uranium, thorium or any combination of them. Includes ores that contain, by weight, one-twentieth of 1...
Source MaterialsDefined as material that includes or contains hazardous substances, pollutants or contaminants that act as a...
Source Meter1. A meter used to record water withdrawn from a surface water or groundwater source, or purchased from a...
Source Modification1. Any physical change in, or change in the method of operation of, a stationary source which increases the...
Source NameIndicates the specific Source types associated with the Action or Assessment.
Source Oriented ModelRepresentation of processes from the pollutant source
Source Reduction1. The design, manufacture, purchase, or use of materials (such as products and packaging) to reduce the...
Source Reduction ActivitiesInclude substitution of raw materials; reformulation or redesign of products; equipment or technology...
Source SDF Download PageThis is the main entry page into a DSSTox database (or group of DSSTox data files sharing the same NAMEID)...
Source Separation1. Organizing materials by type (such as paper, metal, plastic, and glass) so that these items can be...
Source Startup1. Setting in operation of a source for any purpose.[40 CFR 52.01 (CFR 2013)][40 CFR 60.2 (CFR 2013)]
Source TermAs applied to chemical stressors, the type, magnitude, and patterns of chemical(s) released.
Source TypeIndicates the Source breakdown for the TMDL (i.e. Point/Nonpoint source, Point source, or Nonpoint source).
Source Type OtherA source type used when defined source types do not apply. Examples include: contaminated buildings, storm...
Source Using 1 to 10 TonsSource(s) using 907 kg (1 ton) or more of ethylene oxide in any consecutive 12-month period but less than...
Source Using 1 TonSource(s) using 907 kg (1 ton) or more of ethylene oxide within any consecutive 12-month period after...
Source Using 10 TonsSource(s) using 9,070 kg (10 tons) or more of ethylene oxide in any consecutive 12-month period after...
Source Using Less Than 1 TonSource(s) using less than 907 kg (1 ton) of ethylene oxide within all consecutive 12-month periods after...
Source Using Less Than 10 TonsSource(s) using less than 9,070 kg (10 tons) of ethylene oxide in all consecutive 12-month periods after...
Source Water1. Water in its natural state, prior to any treatment for drinking.
Source Water AssessmentA study and report required by the Source Water Assessment Program (SWAP) of the Safe Drinking Water Act...
Source Water CollaborativeA non-profit partnership, organization, or coalition established to support source water protection.
Source Water Production AreaThe area delineated by a state for a Public Water Supply or including numerous such suppliers, whether the...
Source Water Protection Area1. The area delineated by the state for a public water system (PWS) or including numerous PWSs, whether the...
Source-Of-SupplyFacilities used to extract and/or store raw water prior to transmission and distribution.
SourcesSources of indoor air pollutants. Indoor air pollutants can originate within the building or be drawn in from...
Source-Sink RelationshipThe effect of a species habitat quality on the species population growth
Source-Specific FieldsIn DSSTox SDF files, these are data or text fields that are particular to that DSSTox database, containing...
Source-to-Outcome ModelModel which traces the relationship/pathway between the source exposure and resulting outcome.
SourisThe Souris River Basin within the United States. North Dakota. Area = 9150 sq.mi.
Souris-Red-Rainy RegionThe drainage within the United states of the Lake of the Woods and the Rainy, Red, and Souris River Basins...
South Florida RegionThose areas south of Lake Okeechobee and the Caloosahatchee River watershed to the west of Lake Okeechobee...
South PlatteThe South Platte River Basin. Colorado, Nebraska, Wyoming. Area = 23900 sq.mi.
Southeastern Lake MichiganThe drainage into Lake Michigan from and including the St. Joseph River Basin to and including the Grand...
Southeastern Lake OntarioThe drainage into Lake Ontario from the Genesee River Basin boundary to and including the Stony Creek Basin...
Southern Blot1. Southern blotting is a laboratory technique used to detect a specific DNA sequence in a blood or tissue...
Southern California CoastalThe drainage within the United States that discharges into the Pacific Ocean from the Rincon Creek Basin...
Southern FloridaThe coastal drainage and associated waters from St. Lucie Inlet to and including the Caloosahatchee River...
Southern Lake ErieThe drainage into Lake Erie from the Vermilion River Basin boundary to and including the Ashtabula River...
Southern Lake Superior-Lake SuperiorThe drainage into Lake Superior within the United States from the Montreal River Basin boundary to the Soo...
Southern Mojave-Salton SeaThe closed desert basins in Southeastern California, including the Lower Mojave Desert and the Salton Sea...
Southwestern Lake Huron-Lake HuronThe drainage into Lake Huron within the United States, from the Au Sable River Basin boundary to the St...
Southwestern Lake MichiganThe drainage into Lake Michigan from the St. Joseph River Basin boundary to and including the Milwaukee River...
Southwestern Lake OntarioThe drainage into Lake Ontario from the Niagara River Basin boundary to and including the Genesee River...
Sow1. In swine, the term sow refers to a female after she has borne a litter.
SownPlanted using a broadcast seeding machine that distributes seed upon the soil surface. The seed may then be...
SOxOxides of sulfur
Soybean RustSerious and wide-spread disease of soybeans caused by Phakopsora pachyrhizi, also known as Asian Soybean Rust.
Space ComplexityA measure of the amount of computer memory required to carry out a computation; it can vary with the size of...
Space Vehicle1. Man-made device, either manned or unmanned, designed for operation beyond earth's atmosphere. This...
SpacingThe distance between sources or transmitters and detectors or receivers on a logging probe.
Span1. The scale or range of values an instrument is designed to measure.
Span Gas1. Purified gas mixture used to span gas analyzers. Span gases must meet the specifications of § 1065.750...
Spandex FiberManufactured fiber in which the fiber-forming substance is a long chain synthetic polymer comprised of at...
Spare EngineEngine installed (or intended to be installed) on an in-service aircraft to replace an existing engine and...
Spare PartThose parts that are supplied by a manufacturer to another manufacturer, distributor, or retailer, for...
Sparge1. Injection of air below the water table to strip dissolved volatile organic compounds and/or oxygenate...
Sparge or SpargingInjection of air below the water table to strip dissolved volatile organic compounds and/or oxygenate ground...
Spark-Ignition Engine1. An internal combustion engine which uses a spark of an electrical discharge to ignite the fuel-air mixture
Sparse Matrix Operator Kernel EmissionsA modeling system that processes emissions data for use in air quality models. It uses the Biogenic Emission...
Sparse Matrix Operator Kernel Emissions modeling systemThe Sparse Matrix Operator Kernel Emissions (SMOKE) modeling system is used to process emissions inventories...
Spartina alternifloraSmooth cordgrass is a tall clumping perennial grass with creeping rhizomes that grows up to 7 ft. in height...
SpatJuvenile oysters that have just attached to a hard surface.
Spatial DiscretizationThe level of detail in describing the changes in space of a system, such as a catchment or sewer system, for...
Spatial GradientA graded change in the magnitude of some quantity or dimension measured along a transect.
Spatial Insect RepellentInclude treatments of both indoor and outdoor sites where the product is applied into the air rather than...
Spatial modelA set of rules and procedures for conducting spatial analysis to derive new information that can be analyzed...
Spatial SegmentationA numerical discretization of the spatial component of a system into one or more dimensions; forms the basis...
Spatial statisticsStatistical methodology and theory that accounts for spatial aspects of a spatially distributed data set...
Spatial variabilityVariability across location, whether long- or short-term.
Spatial/Temporal Co-occurrence1. A type of evidence that involves observation of two entities or conditions at the same place or time; it...
Spatter CoatingCoating labeled exclusively as such wherein spots, globules, or spatters of contrasting colors appear on or...
Spatter Coating/Multicolor CoatingCoating labeled exclusively as such wherein spots, globules, or spatters of contrasting colors appear on or...
SpawnTo release eggs and/or sperm into the water.
Spawning1. The process of bringing forth offspring for aquatic organisms, such as oysters, fish, or frogs.
Special Appropriations Act ProjectEPA grant projects identified and funded through EPA’s annual appropriations acts. Sometimes these projects...
Special Aquatic SiteThose sites identified in subpart E. They are geographic areas, large or small, possessing special ecological...
Special Consolidated ChecklistA consolidation of the Revision Checklists for a major rule, such as the Land Disposal Restrictions (LDR)...
Special Drainage WellsClass V wells that include potable water tank overflow, construction dewatering, swimming pool drainage, and...
Special FeatureEnabling off-street or off-highway operation and use means a vehicle: (1) That has 4-wheel drive; and (2)...
Special irrigation district1. An irrigation district in existence prior to May 18, 1994 that provides primarily agricultural service...
Special Local-Needs RegistrationRegistration of a pesticide product by a state agency for a specific use that is not federally registered...
Special Marking Specialty CoatingAny coating that is used for safety or identification applications, such as markings on flight decks and...
Special naphtha1. All finished products within the naphtha boiling range that are used as paint thinners, cleaners, or...
Special Needs PopulationPopulations whose members may have additional needs before, during, and after an incident in functional...
Special Notice IssuedIssuance under CERCLA Section 122 of a Special Notice Letter to potentially responsible parties (PRPs). The...
Special Notice LetterEPA sends out a special notice letter when it is ready to negotiate with PRPs to clean up a site. A special...
Special Nuclear Material1. Meaning contained in the Atomic Energy Act of 1954, 42 U.S.C. 2014 et seq., and the regulations issued...
Special Permit1. EPA may issue a special permit under the Marine Protection, Research and Sanctuaries Act (MPRSA) to an...
Special Populations1. People who might be more sensitive or susceptible to exposure to hazardous substances because of factors...
Special ProcedureProcedures allowed under § 1065.10(c)(2).
Special Production AreaDemarcated area within which all manufacturing, processing, and use of a new chemical substance takes place...
Special Purpose Monitor StationMonitor included in an agency's monitoring network that the agency has designated as a special purpose...
Special Purpose Rail EquipmentMaintenance-of-way equipment which may be located on or operated from rail cars including: Ballast cribbing...
SPECIAL RECORDSTypes of records maintained separately from textual/paper records because their physical form or...
Special Review1. Formerly known as Rebuttable Presumption Against Registration (RPAR), this is the regulatory process...
Special Status PlantRefers to vegetation designated as important by local, state, or Federal entities. Designations may be for...
Special Track WorkTrack other than normal tie and ballast bolted or welded rail or containing devices such as retarders or...
Special Waste1. Items such as household hazardous waste, bulky wastes (refrigerators, pieces of furniture, etc.) tires...
Specialist1. A species with narrow food preferences, habitat preferences, or both (after Ricklefs 1979:871).
Specialized Function CoatingCoatings that fulfill extremely specific engineering requirements that are limited in application and are...
Specialized Use AreaLocality used for a certain type of activity, includes commercial production-related and service activities.
Specially Designated LandLand area that has been identified for a distinctive use.
SpecialtyAll hot forming operations other than “carbon hot forming operations.”
Specialty BiocidesIn this report, estimates are provided for end uses as follows: swimming pools, spas and industrial water...
Specialty Chemical1. Uses of chemicals in a research, industrial, or household setting. This does not include pharmacologic...
Specialty Chemicals ProductionManufacturing of chemicals produced to perform a certain function.
Specialty Coating1. Coating that, even though it meets the definition of a primer, topcoat, or self-priming topcoat, has...
Specialty CropSpecialty crops are defined in law as “fruits and vegetables, tree nuts, dried fruits and horticulture and...
Specialty DesolventizerDesolventizer that removes excess solvent from soybean meal using vacuum conditions, energy from superheated...
Specialty Gas CompanyOrganization that wholly or partially owns or operates one or more EPA Protocol gas production sites.
Specialty Hot Forming OperationAll hot forming operations other than “carbon hot forming operations.”
Specialty Interior CoatingAny coating used on interior surfaces aboard U.S. military vessels pursuant to a coating specification that...
Specialty Metal ScrapScrap where the only materials from motor vehicles in the scrap are materials (such as certain exhaust...
Specialty Steel1. Category of steel that includes silicon electrical, alloy, tool, and stainless steels.
Specialty YeastIncludes but is not limited to yeast produced for use in wine, champagne, whiskey, and beer.
SpeciationThe process of disaggregating inventory pollutants into individual chemical species or species groups.
Speciation Trends Network StationPM 2.5 speciation station designated to be part of the speciation trends network. This network provides...
Species1. A reproductively isolated aggregate of interbreeding organisms having common attributes and usually...
species diversityThe variety of species in an area. It includes not only the number of species in the area but also their...
Species ExtinctionThe disappearance of a species from part or all of its range.
Species HabitatThe place where a population of a species normally lives and its surroundings, both living and non-living...
Species IntroductionIntentional or unintentional escape, release, dissemination, or placement of a species into an ecosystem as a...
Species NameName used to describe the species of a sample in legacy STORET.
Species Pattern MarkerA specific species, pattern or marker that is indicative of a particular host species. ARA patterns of...
Species RangeThe geographic extent over which a species occurs, including areas that comprise suitable habitat as well as...
Species RecoveryProcess whereby the land, plants and wildlife move through various ecological stages in order to return to a...
species richness1. The number of species in an area.
Species Sensitivity DistributionThe statistical distribution of species based on their sensitivity to exposure to an agent.
Specific Air RangeDistance an airplane travels per unit of fuel consumed. Specific air range is expressed in kilometers per...
Specific CapacityAn alternative term to capacity that is associated with acceptance testing of ground water wells. Specific...
Specific Causation1. The concept of causation applies to specific events, not to general categories. That is, the cause of each...
Specific Chemical IdentityThe chemical name, Chemical Abstracts Service (CAS) Registry Number, or any other information that reveals...
Specific Conductance1. A rapid method of estimating the dissolved-solids content of a water supply. The measurement indicates the...
Specific dataData that are characteristic of a particular subsystem, or process.
Specific EmissionEmissions expressed on the basis of observed brake power, using units of g/kW-hr. Observed brake power...
specific gravity1. The dimensionless ratio of the density of a substance with respect to the density of water. The specific...
Specific Gravity Monitoring DeviceUnit of equipment used to monitor specific gravity and having a minimum accuracy of ±0.02 specific gravity...
Specific Instruction for UseInformation and requirements specific to a particular pesticide product or work site that an applicator needs...
Specific Oxygen Uptake RateMass of oxygen consumed per unit time per unit mass of total solids (dry weight basis) in the sewage sludge.
Specific Pathogen-Free AnimalAnimals or humans raised in the absence of a particular disease-causing virus or other microorganism.
Specific ProhibitionProhibitions that apply to each IU introducing pollutants into a POTW regardless of whether the IU is subject...
Specific prohibitionsProhibitions that apply to each IU introducing pollutants into a POTW regardless of whether the IU is subject...
Specific Ultraviolet AbsorptionAt 254 nanometers (nm), an indicator of the humic content of water. It is a calculated parameter obtained by...
Specific Yield1. The quantity of water that a unit volume of saturated permeable rock or soil will yield when drained by...
Specification1. Clear and accurate description of the technical requirements for materials, products or services...
Specifications1. Acceptance criteria set at the onset of a quality assurance plan that help to determine if the intended...
Specificity1. The degree to which an effect is known to result from one or very few possible causes, or a cause is known...
Specified Adjustable Range1. Range of allowable settings for an adjustable component specified by a certificate of conformity. [40 CFR...
Specified ProcedureProcedures we specify in this part 1065 or the standard-setting part. Other procedures allowed or required by...
SpecimenAny material derived from a test system for examination or analysis.
Spectral analysis of surface wavesAn in situ seismic method that analyzes dispersion of surface waves and inverts it in terms of mechanical...
Spectral Interference Check Solution1. A solution of selected method analytes of higher concentrations which is used to evaluate the procedural...
Spectral IrradianceSpectrally resolved irradiance, measured in watts per square meter per nanometer ((W/m²)/nm).
Spectral UncertaintyPossible variation in exposure to the noise spectra in the workplace. (To avoid the underprotection that...
Spectral-gamma logA log of gamma radiation as a function of its energy that permits the identification of the radioisotopes...
Spectroscopy1. Image where signals are identified and separated according to their frequencies, e.g., to identify...
Speeches, Testimony & TranscriptsTranscripts: Something that has been transcribed; a written record of dictated or recorded speech...
Spent Acid SolutionSolutions of steel pickling acids which have been used in the pickling process and are discharged or removed...
Spent Brine Return Flow WellsClass V wells that dispose of the spent brine that results from the extraction of minerals, halogens, and...
Spent Caustic Waste Stream1. Continuously flowing process wastewater stream that results from the use of a caustic wash system in an...
Spent Fuel1. Irradiated fuel that is permanently discharged from a reactor. Except for possible reprocessing, this fuel...
Spent LiquorProcess liquid generated from the separation of cooking liquor from pulp by the pulp washing system...
Spent Liquor SolidDry weight of the solids in the spent pulping liquor that enters the chemical recovery furnace or chemical...
Spent LubricantWater or an oil-water mixture which is used in forming operations to reduce friction, heat and wear and...
Spent MaterialAny material that has been used and as a result of contamination can no longer serve the purpose for which it...
Spent MaterialsMaterials that have been used and can no longer serve the purpose for which they were produced without...
Spent Nuclear Fuel1. Nuclear reactor fuel that has been used to the extent to that it can no longer effectively sustain a chain...
Spent Pickle LiquorSolutions of steel pickling acids which have been used in the pickling process and are discharged or removed...
Spent Pulping LiquorResidual liquid collected from on-site pulping operations at chemical pulp facilities that is subsequently...
Spermatic Cord1. A tube-like structure composed of the vas deferens and surrounding tissue layers, that runs from the...
Spermatozoa1. The male reproductive cell that is formed in the testicle. A sperm consists of a head, a body, and a tail...
SphincterA ring-shaped muscle that allows an opening to close tightly, such as the sphincter muscle in the lower end...
SphingolipidsA class of membrane lipids that have a polar head and two nonpolar tails. They are composed of one molecule...
SpiculeSmall, needle-like projections that make up the skeleton of a sponge.
SpiculesSmall, needle-like projections that make up the skeleton of a sponge.
SpiderEight-legged predatory arthropods in the Class Arachnida.
Spike1. A substance that is added to an environmental sample to increase the concentration of target analyte by...
Spiked measurementsQuality control measurements in which the detector or instrument is exposed to a known concentration and...
Spiked Sample/Positive ControlKnown amounts of analyte are added to a sample and the percent recovery is calculated. Used to test an...
SpikeletIn grasses, the smallest aggregation of florets plus any occurring below the glumes.
Spill containerCatches and contains spilled solvent from the dry cleaning machine.
Spill eventA discharge of oil into or upon the navigable waters of the United States or adjoining shorelines in harmful...
Spill historyIf a facility has experienced one or more spill events, the SPCC Plan must include a written description of...
Spill Impact ComponentComponent of the Gulf RESTORE program authorized by section 311(t)(3) of the Federal Water Pollution Control...
Spill Impact FormulaFormula established by the Council in accordance with section 311(t)(3)(A)(ii) of the Federal Water Pollution...
Spill of National Significance1. A spill that due to its severity, size, location, actual or potential impact on the public health and...
Spill Prevention, Containment, and Countermeasures PlanPlan covering the release of hazardous substances as defined in the Clean Water Act.
Spill Prevention Control and Countermeasure and Facility Response PlanThe Spill Prevention Control and Countermeasure (SPCC) is a rule to prevent oil discharges to the navigable...
Spill Prevention Control and Countermeasure Plan1. A plan prepared by a facility to minimize the likelihood of a spill and to expedite control and cleanup...
Spill Prevention Control and CountermeasuresRegulations establishing spill prevention procedures and equipment requirements for nontransportation-related...
Spill Response OrganizationEntity that provides spill response resources to mitigate or remove CWA hazardous substances from the...
SpilloverThe benefit of a program intervention that accrues to individuals or organizations that are not direct...
Spillway1. Structure over or through which flow is discharged from a reservoir. If the rate of flow is controlled by...
Spillway ChannelOpen channel or closed conduit conveying water from the spillway inlet downstream.
Spin CastingThe form is spun at 2-4 revolutions per second while vibrating and depositing concrete and at speeds up to 12...
Spin DopeLiquid mixture of polymer and solvent that is fed to the spinneret to form the acrylic and modacrylic fibers.
Spinach ProcessingProcessing of spinach and leafy greens into the following product styles: Canned or frozen, whole leaf...
Spinal Cord1. The elongated, approximately cylindrical part of the central nervous system of vertebrates that lies in...
Spindle Assembly InteractionSpindle Assembly Interaction involves temporary non-covalent binding through intermolecular physical forces...
Spindle Pole BodyThe microtubule organizing center of yeast, Saccharomyces cerevisiae, which functions like the centrosome of...
Spinethe binding edge at the back of a book.
Spine and ribs plotA plot of long-spaced detector output versus short-spaced detector output for a dual detector gamma-gamma...
Spinner surveyA log made with an impeller flowmeter.
Spinning ReserveElectric power plant or utility capacity on-line and running at low power in excess of actual load.
Spinning SolutionMixture of polymer, prepolymer, or copolymer and additives dissolved in solvent. The solution is prepared at...
Spinning Solution Preparation SystemEquipment used to prepare spinning solutions; the system includes equipment for mixing, filtering, blending...
Spiraea japonicaJapanese spiraea, also called Japanese meadowsweet, is a perennial, deciduous shrub that grows to 4 or...
SpirometrySpirometry is a lung function test that measures how much (volume) and how fast (flow) air moves into and out...
spit1. An elongated ridge of sand that projects from the land into the mouth of an adjacent lake or bay.
Spitback EmissionsEvaporative emissions resulting from the loss of liquid fuel that is emitted from a vehicle during a fueling...
Spleen1. An organ that is part of the hematopoietic and immune systems. It is composed of the white pulp and the...
SpliningAn interpolation method in which values are estimated using a mathematical function that minimizes overall...
Split SamplesTwo or more representative portions taken from one sample in the field or in the laboratory and analyzed by...
split-barrel samplerA nonsealed soil sampling tool that is split longitudinally. The split barrel allows easy removal of soil...
S-PlusComputer software for performing statistical analyses.
Spodic HorizonA spodic horizon is an illuvial layer with 85 percent or more spodic materials. Spodic materials contain...
Spodoptera frugiperdapesticide [Original source...
SpodosolsThe feature that is common to most Spodosols is the presence of a spodic horizon, in which amorphous mixtures...
Spoil1. Dirt or rock removed from its original location--destroying the composition of the soil in the process--as...
Sponge Body PartNames for animal body parts vary by animal order and family classifications. Sponges are in the phylum...
Sponsor1. Person who initiates and supports, by provision of financial or other resources, a study or a person who...
Spontaneous-potential log1. A log of the difference in DC voltage between an electrode in a well and one at the surface; most of the...
SporangiosporeA spore borne within a sporangium
Sporangium1. A structure found in plants, fungi, and algae, that produces and contains spores.
Spore1. The reproductive body of an organism which is capable of giving rise to a new organism either directly or...
Spore DispersalSpores travel in several ways: passively moved by a breeze or water drop, mechanically disturbed (by a person...
Spore DormancyArrested developmental stage of spores prior to their germination, hypobiosis.
Spore GerminationProcess wherein spores start producing new vegetative cells.
Spore-Forming MicroorganismOrganisms that are capable of spore production, including both spore and vegetative forms of the organism.
SporophyteA phase where spores are produced in the life cycle of plants having alternation of generations (i.e., having...
Sport FishingFishing for fun and recreation.
Sport Utility VehicleLight truck with an extended roof line to increase cargo or passenger capacity, cargo compartment open to the...
SporulationThe process by which immature (noninfective) coccidian oocysts develop into the mature, infective form. (Also...
Spot AllowanceAllowance that may be used for purposes of compliance with a source's Acid Rain sulfur dioxide emissions...
Spot announcementGeneric phrase meaning a commercial or public service announcement.
Spot AuctionAuction of a spot allowance.
Spot PriceThe price for a one-time open market transaction for near-term delivery of a specific quantity of product at...
Spot SaleSale of a spot allowance.
Spot StrippingDepainting of an area where it is not technically feasible to use a non-chemical depainting technique.
Spot ZoningThe designation of an isolated parcel of land for a use classification harmful to or inconsonant with the use...
SpouseA person legally married to another person.
Sprawl1. Land development that is built away from urban areas and existing town centers, creating large areas of...
Spray Application1. Method of applying coatings by atomizing and directing the atomized spray toward the part to be coated.
Spray AreaEnclosure where liquid in the form of tiny drops is blown onto an article (usually as part of a manufacturing...
Spray Booth1. Structure housing automatic or manual spray application equipment where prime coat, guide coat, or topcoat...
Spray Booth Air SealEntry or entry vestibule to or exit or exit vestibule from a spray booth which isolates the spray booth from...
Spray Buff ProductProduct designed to restore a worn floor finish in conjunction with a floor buffing machine and special pad.
Spray Coating EquipmentDevices used to apply a material by spraying it onto a substrate for protective, decorative, or functional...
Spray Dryer1. Dryers that evaporate brine to form magnesium powder by contact with high temperature gases exhausted from...
Spray FieldPhysical location where effluent is sprayed as a means of disposal.
Spray GunDevice that atomizes a coating or other material and projects the particulates or other material onto a...
Spray IrrigationAn common irrigation method where water is shot from high-pressure sprayers onto crops. Because water is shot...
Spray Painting ProcessApplying an organic coating to a part. Coatings such as paint, varnish, lacquer, shellac, and plastics are...
Spray PyrolysisA deposition process whereby heat is used to break molecules into elemental sources that are then spray...
Spray RoomEnclosure with four sides and a roof where spray paint is prevented from leaving the booth during spraying by...
Spray TowerEnclosed vertical tower in which acid pickling solution is sprayed onto moving steel strip in multiple...
Spray Tower Air Quality Restricted OperationOperation involving more than 6 changes of formulation in a 30 consecutive day period that are of such degree...
Spray Tower Fast Turnaround OperationOperation involving more than 6 changes of formulation in a 30 consecutive day period that are of such degree...
Spray Tower Normal OperationOperation utilizing formulations that present limitted air quality problems from stack gases and associated...
Spray Tower Scrubber1. A device that sprays alkaline water into a chamber where acid gases are present to aid in neutralizing the...
Spray-Applied Coating Operation1. Coatings that are applied using a hand-held device that creates an atomized mist of coating and deposits...
Spray-Applied PaintingApplication of paints using a hand-held device that creates an atomized mist of paint and deposits the paint...
Spray-in-Place FoamRigid cellular polyurethane or polyisocyanurate foam produced by catalyzed chemical reactions that hardens at...
Spray-in-Place InsulationInsulation material that is sprayed onto a surface or into cavities and includes cellulose fiber spray-on as...
SpreadGeneral term for the extent of variation among cases.
Spreader Stoker Coal/Refuse-Derived Fuel Mixed Fuel-Fired Combustor1. Combustor that fires coal and refuse-derived fuel simultaneously, in which coal is introduced to the...
Spreader Stoker Fixed Floor Refuse-Derived Fuel-Fired Combustor/100 Percent Coal CapableSpreader stoker type combustor with a fixed floor grate design that typically fires 100 percent...
Spreader Stoker Steam Generating UnitSteam generating unit in which solid fuel is introduced to the combustion zone by a mechanism that throws the...
Spreading CenterSpreading centers are areas where tectonic plates are moving apart, allowing new oceanic crust to reach the...
Spring1. Ground water seeping out of the earth where the water table intersects the ground surface.
spring high waterThe average height of the high waters during the semimonthly times of spring tides (occurs at the full and...
Spring LineTheoretical center of a pipeline. Also, the guideline for laying a course of bricks.
Spring MeltThe process whereby warm temperatures melt winter snow and ice. Because various forms of acid deposition may...
Spring Melt/Thaw1. The process by which warm temperatures melt winter snow and ice. Because various forms of acid deposition...
Spring Viremia of CarpAn infection caused by Rhabdovirus carpio causing high mortality rates in various Carp species.
Sprinkler Irrigation InfrastructureIrrigation to support water distribution by overhead high-pressure sprinklers or guns from a central location...
SproutingPlants growing new growth, such as shoots or buds.
SpudTo start the well drilling process by removing rock, dirt, and other sedimentary material with the drill bit.
Spud (spud a well)To start the well drilling process by removing rock, dirt, and other sedimentary material with the drill bit.
Spur and Groove Coral ReefHabitat having alternating sand and coral formations that are oriented perpendicular to the shore or...
Spur RoadA short road that branches from a major forest road and that is generally used to access specific areas for...
Sputtering1. Vacuum evaporation process in which portions of a coating material are physically removed from a substrate...
Squall LineA squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy...
Squamulose LichenSquamulose lichens have scale-like lobes called squamules that are typically small and overlap to form mats...
Squash ProcessingProcessing of pumpkin and squash into canned and frozen styles.
§, section symbolThis designates a section. Example: §273.6 is also written as 40 CFR 273.6 (title 40, part 273, section 6)...
St. Clair-DetroitThe St. Clair and Detroit River Basins within the United States from the mouth of Lake Huron to and including...
St. CroixThe St. Croix River Basin. Minnesota, Wisconsin. Area = 7750 sq.mi.
St. FrancoisThe Riviere St. Francois Basin within the United States. Vermont. Area = 590 sq.mi.
St. JohnThe St. John River Basin within the United States. Maine. Area = 7330 sq.mi.
St. JohnsThe coastal drainage and associated waters from and including the St. Johns River Basin to St. Lucie Inlet...
StabilizationConversion of the active organic matter in sludge into inert, harmless material.
Stabilization Construction CompletedThe event by which the State or EPA formally notifies the RCRA facility that the interim measures undertaken...
Stabilization Construction Completed - Exposure Control by Barrier and/or Institutional Control1. The event by which the State or EPA formally notifies the RCRA facility that the interim measures...
Stabilization Construction Completed - Groundwater Extraction and Treatment1. The event by which the State or EPA formally notifies the RCRA facility that the interim measures...
Stabilization Construction Completed - Other Activity1. The event by which the State or the EPA formally notifies the RCRA facility that the interim measures...
Stabilization Construction Completed - Source Removal and/or Treatment1. The event by which the State or EPA formally notifies the RCRA facility that the interim measures...
Stabilization Measures DecisionEPA's or the State's notification or written acknowledgement to the RCRA facility that a stabilization...
Stabilization Measures Evaluation - Facility is Amenable to Stabilization Activity1. This event indicates that the feasibility and appropriateness of stabilization activities at this facility...
Stabilization Measures Evaluation - Facility is not Amenable to Stabilization Activity at this Time1. This event indicates that the feasibility and appropriateness of stabilization activities at this facility...
Stabilization Measures Evaluation - Facility is not Amenable to Stabilization Activity (Lack of Data)1. This event indicates that the feasibility and appropriateness of stabilization activities at this facility...
Stabilization Measures Evaluation - Facility is not Amenable to Stabilization Activity (Other Reason)1. This event indicates that the feasibility and appropriateness of stabilization activities at this facility...
Stabilization Measures Implemented - Exposure Control by Barrier and/or Institutional Control1. EPA's or the State's notification or written acknowledgement to the RCRA facility that a stabilization...
Stabilization Measures Implemented - Groundwater Extraction and Treatment1. EPA's or the State's notification or written acknowledgement to the RCRA facility that a stabilization...
Stabilization Measures Implemented - Other Activity1. EPA's or the State's notification or written acknowledgement to the RCRA facility that a stabilization...
Stabilization Measures Implemented - Source Removal and/or Treatment1. EPA's or the State's notification or written acknowledgement to the RCRA facility that a stabilization...
Stabilization PondLarge earthen basin used for the treatment of wastewater by natural processes involving the use of both algae...
StabilizationTechnology(Technology which facilitates the) conversion of the active organic matter in sludge into inert, harmless...
Stabilized BaseNon-asphaltic road base composed of aggregate mixed with a pozzolanic material which increases the bearing...
Stabilized Organic MatterThe pool of soil organic matter that is resistant to biological degradation because it is either physically...
Stabilizer1. Stabilizers are used to prevent plastic materials from degrading when subject to heat or ultraviolet...
Stable AirA motionless mass of air that holds, instead of dispersing, pollutants.
Stable ChannelA stable channel is one whose most probable form amongst rivers is the channel morphology that, over time, in...
Stack1. A chimney, smokestack, or vertical pipe that discharges used air.
Stack Effect1. Air, as in a chimney, that moves upward because it is warmer than the ambient atmosphere.
Stack Effect Reduction TechniquesFeatures that prevent or reduce the flow of warm conditioned air upward and out of the building...
Stack Emission1. Particulate matter that is released to the atmosphere from a capture system.
Stack HeightDifference between the elevation of the top of a sewage sludge incinerator stack and the elevation of the...
Stack or Point Air EmissionsAll releases of the EPCRA Section 313 chemical to the air that occur through stacks, confined vents, ducts...
StackingAdding together two or more signals. This process is often used in geophysics to improve the signal to noise...
Staff AcquisitionStaff Acquisition establishes procedures for recruiting and selecting high-quality, productive employees with...
Stage II ControlsSystems placed on service station gasoline pumps to control and capture gasoline vapors during refuelling.
Staging Pile1. An accumulation of solid, non-flowing remediation waste that is not a containment building and that is...
Staging ServerEPA uses a two tier segmentation of their servers. There are a set of production servers and a set of staging...
StagnationLack of motion in a mass of air or water that holds pollutants in place.
Stain1. Coating that produces a dry film with minimal coloring. This includes lacquer stains.
Stain ControllerConditioner or pretreatment coating formulated and recommended for application to wood prior to the...
Stain FungusThis fungi has spores that produce mycelium that colonizes the wood, which eventually blocks the...
Stainless SteelLow carbon steel that contains at least 10.5 percent chromium.
Stakeholder1. Any organization, governmental entity, or individual that has a stake in or may be impacted by a given...
STAKEHOLDER INVOLVEMENTA broad spectrum, multi-sector involvement of affected and interested groups or individuals, using an...
Stakeholder(s)Any organization, governmental entity, or individual that has a stake in or may be impacted by a given...
Stakeholders1. Individuals or organizations with a direct personal, economic, legal, social, or cultural interest in the...
StalagmometerInstrument used to measure the surface tension of a solution by determining the mass of a drop of liquid by...
StallA cow housing cubicle.
StalledAny federal site that has been in the Comprehensive Environmental Response, Compensation, and Liability...
Stalled Federal Facility CleanupAny federal site that has been in the Comprehensive Environmental Response, Compensation, and Liability...
Stamen1. The male reproductive organ of a flower.
StanchionA device with two rails that was closed around a cows neck after she entered a stall and to keep her...
StandA contiguous group of trees sufficiently uniform in species composition, arrangement of age classes, and...
Stand Alone Heifer FacilityA dairy operation that specializes in raising calves as dairy cow replacements.
Stand-Alone EquipmentUnwind or feed section, which may include more than one unwind or feed station (such as on a laminator); a...
Stand-Alone Pesticide Formulating, Packaging, and Repackaging FacilityPFPR facility where either: No pesticide manufacturing occurs; or where pesticide manufacturing process...
Stand-Alone Semichemical Pulp MillAny stationary source that produces pulp from wood by partially digesting wood chips in a chemical solution...
Standard1. A physical or chemical quantity whose value is known exactly, and is used to calibrate or standardize...
Standard Addition1. The addition of a known amount of analyte to the sample in order to determine the relative response of the...
standard analysisAn analytical determination made with known quantities of target compounds; used to determine response...
Standard BatchBatch process operated within a range of operating conditions that are documented in an operating scenario...
Standard Chemical FieldsEach DSSTox SDF file contains a standard set of chemical information fields. These include fields for...
Standard Deviation1. A measure of the spread, the square root of the variance; a statistic used with interval-ratio variables.
Standard EquipmentThose features or equipment which are marketed on a vehicle over which the purchaser can exercise no choice...
standard error1. The standard deviation of a theoretical distribution of sample means about the true population mean.
Standard FerromanganeseAlloy as defined by ASTM Designation A99-76 or 82 (Reapproved 1987) (incorporated by reference - see § 60.17).
STANDARD FORMA form prescribed by a Federal agency and approved by GSA for mandatory use throughout the U.S. Government...
STANDARD FORM 115, REQUEST FOR RECORDS DISPOSITION AUTHORITYThe form used by Federal agencies to obtain disposition authority from NARA for records to which the General...
STANDARD FORM 135, RECORDS TRANSMITTAL AND RECEIPTThe form to be submitted by agencies to a Federal records center before transferring records there.
STANDARD FORM 258, REQUEST TO TRANSFER, APPROVAL, AND RECEIPT OF RECORDS TO NATIONAL ARCHIVES OF THE UNITED STATESThe form used by Federal agencies to transfer legal custody of permanent records to the National Archives...
Standard Industrial Classification (code)The Department of Commerce economic end-product identifier, which has been replaced by NAICS.
Standard Industrial Classification codesStandard Industrial Classification codes classify a business or facility according to its primary kind of...
Standard InstrumentAn assessment, inventory, questionnaire, or interview that has been tested with a large number of individuals...
Standard InstrumentsAn assessment, inventory, questionnaire, or interview that has been tested with a large number of individuals...
Standard LampThe standard lamp is an internal quartz-halogen light source that the Brewer uses to quality assure response...
Standard Linear Weighting TechniqueWeighting method used where the effects being considered (e.g., compliance costs) are linearly additive over...
Standard Methods for the Examination of Water and WastewaterA joint publication of the American Public Health Association, American Water Works Association, and the...
Standard Metropolitan Statistical Area1. Any areas listed in OMB Bulletin No. 93-17 entitled “Revised Statistical Definitions for Metropolitan...
Standard of Performance1. Standard for emissions of air pollutants which reflects the degree of emission limitation achievable...
Standard Operating Procedure1. A standard operating procedure (SOP) is a step-by-step procedure that promotes uniformity in operations to...
Standard Operating Procedures1. A written document outlining an analytical method which provides a level of detail intended to allow...
Standard PayloadVehicle payload assumed for each class in tons for modeling and calculating emission credits. There are three...
Standard PermitStandard, individual permit issued under the authority of section 404 of the Clean Water Act.
Standard Reference MaterialCalibration gas mixture issued and certified by NIST as having specific known chemical or physical property...
Standard Reference Material-Equivalent Compressed Gas Primary Reference MaterialGas mixtures listed in a declaration of equivalence in accordance with section 2.1.2 of the “EPA Traceability...
Standard Reference MethodMethod which includes comparison with a recognized standard as a means of improved accuracy.
Standard Sample1. The aliquot of finished drinking water that is examined for the presence of coliform bacteria.
Standard Sample (regulatory)The aliquot of finished drinking water that is examined for the presence of coliform bacteria. {OW/TSC}
Standard Setting / Reporting Guideline DevelopmentStandard Setting/Reporting Guideline Development involves the establishment of allowable limits associated...
Standard Solution1. A solution in which the exact concentration of a chemical or compound is known.
Standard SolutionsWhen a compound purity is assayed to be 96% or greater, the weight can be used without correction to...
Standard TablesOne of the Standard Tools under the RAGS Part D approach. The Standard Tables have been developed to clearly...
Standard (Technical)According to Office of Management and Budget (OMB) Circular A-119, the term "standard," or "technical...
Standard ToolsA basic element of the RAGS Part D approach. The Standard Tools have been developed to standardize the...
Standard Toxicity FieldsEach DSSTox SDF file contains a set of standard toxicity information fields, the number of which varies...
Standard TrailerMeaning given in § 1037.501.
Standard Uncertainty1. Uncertainty of the result of a measurement expressed as a standard deviation. {ORD} {OW/EAD} {OPP} {ORCR}
Standard Wipe SampleSample collected for chemical extraction and analysis using the standard wipe test as defined in § 761.123...
Standard Wipe TestFor spills of high-concentration PCBs on solid surfaces, a cleanup to numerical surface standards and...
standardizationA set of techniques used to remove as far as possible the effects of differences in the age or other...
Standardize1. To compare with a standard.
Standardized Mortality RatioThis is the relative measure of the difference in risk between the exposed and unexposed populations in a...
Standardized Permit1. RCRA permit authorizing management of hazardous waste issued under subpart G of this part and part 270...
Standardized Permit Supplemental PortionSupplemental portion of a standardized permit consists of site-specific terms and conditions, beyond those of...
Standardized QuestionA question that is designed to be asked or read and interpreted in the same way regardless of the number and...
Standards1. The maximum allowable emissions in grams per mile for each air pollutant. The Air Pollutants are: (1.) NOx...
Standards developing organizationThe organization responsible for creating and maintaining the set of criteria that makes up a standard; and...
Standby ImpoundmentPeriod of time that an impoundment is not accepting uranium byproduct material or tailings but has not yet...
Standby IntakeA surface water intake held in reserve by a water supply entity (e.g., agency, authority, cooperative...
Standby WellA well held in reserve by a water supply entity (e.g., agency, authority, cooperative, private company, or...
Standing CropBiomass of all human food chain organisms in a given area of a surface water body at one time. Standing crop...
Standing HeatA sow or gilt will assume a rigid stance and maintain it during servicing if she is ready to be bred.
Standing LossNatural gas emissions from fixed roof tanks as a result of evaporative losses during storage.
StandoffDistance separating a probe from the wall of a borehole.
Standpipe CapApparatus used to cover the opening in the gooseneck of an offtake system.
Staphylococcus hyicusA species of gram-positive bacteria in the family STAPHYLOCOCCACEAE. It is an important opportunistic...
StarchesAny of a group of polysaccharides of the general formula (C6-H10-O5)n, composed of a long-chain polymer of...
Start Date1. The date and time on which the strategy run was most recently started.
Start of a Response ActionThe point in time when there is a guarantee or set-aside of funding by EPA, other federal agencies, states or...
Start TimeThe time at which a grab sample was taken or the start time of the composite sample, based on a 24-hour clock.
StartersDevices used to start up large motors gradually to avoid severe mechanical shock to a driven machine and to...
Starting MaterialSubstance used to synthesize or purify a technical grade of active ingredient (or the practical equivalent of...
Starting Production FlowBy washing in the well and setting the packer. Washing in means to pump in water or brine to flush out the...
Start-UpSetting into operation of a piece of equipment.
Startup1. Begins at the first firing of fuel in the stationary combustion turbine. For simple cycle turbines...
Startup after February 28, 2019For affected sources that commence construction or reconstruction after April 6, 2018, and after August 27...
Startup after September 17, 2020Setting in operation of the add-on control devices.[85 FR 15960; National Emission Standards for Hazardous...
Startup Production RateKiln, press dryer or spray dryer production rate required to bring the process unit to the proper operating...
Startup, Shutdown, and Malfunction Plan1. Plan developed according to the provisions of § 63.6(e)(3).
State1. One of the States of the United States, the District of Columbia, the Commonwealth of Puerto Rico, the...
State 404 AgencyAny state agency administering a 404 program which has been approved under section 404(h).
State 404 ProgramState program which has been approved by EPA under section 404 of the Act to regulate the discharge of...
State Advisory BoardA state advisory board is typically established by the governor and given the task of formulating...
State Agency1. Agency of the State or Tribal government which has jurisdiction over public water systems. During any...
State Agent1. Entity acting on behalf of the State, with the legal authority of the State.
State Air Pollution Control Agency1. Air pollution control agency primarily responsible for development and implementation of a plan under the...
State and Regional Energy PlanningA state or regional energy plan is a strategic effort to develop and promote energy goals and formulate...
State Appliance Efficiency StandardsState appliance efficiency standards establish minimum energy efficiency levels for equipment and other...
State assurance levelsA limit on how much a single state within a trading program can emit beyond its budget; generally used to...

2,959 of 30,736 terms in Environment terminology (MLC-0121). Request the full dataset.