Parts of speech. Once an area is cleared of vegetation, graded and compacted, and an impervious surface or partially pervious surface is constructed or installed, the area generally The meaning of IMPERVIOUS is not allowing entrance or passage : impenetrable. Localized flooding is too often the result. In their poetry above everything the Japanese have remained impervious to alien influences. Impervious layers; Autshumato III. definitions. IMPERVIOUS COVERAGE OR SURFACE: The coverage of the lot area or tract area by materials that prevent percolation of water into the soil and generate storm water runoff, such as buildings, roofs, streets, sidewalks, parking areas and/or driveways (whether hard-surfaced or not), patios, sport courts, pools and any other similar surfaces. Impervious definition, not permitting penetration or passage; impenetrable: The coat is impervious to rain. Impervious definition: If you are impervious to someone's actions, you are not affected or influenced by them. . Incapable of being penetrated: a material impervious to water. (See urban sprawl.) We, the English, as you can see, are of average height, smoke a pipe, carry a rolled . This will determine how much water you need to capture. antonyms: accessible, sensitive, susceptible similar words: impenetrable: definition 3: unable to be injured or damaged. For example, you can't forget to add the square footage of the air conditioning pad. The main examples of impervious area are buildings, driveways, and roads. When impervious surfaces reach 10-20% of local watershed area, surface runoff doubles and continues to increase until, at 100% impervious surface coverage, runoff is five times that Analysis impervious. is: 12,000 - 10,100 = 1,900 sf. Impervious \Im*per"vi*ous\, a. 'The coatings are weldable and impervious to automotive and hydraulic fluids.'. More example sentences. Impervious Definition from Language, Idioms & Slang Dictionaries & Glossaries. Britannica Dictionary definition of IMPERVIOUS. adj. Thesaurus for Impervious. How to use impervious in a sentence. Log in. 'an impervious layer of basaltic clay'. Find 28 ways to say IMPERVIOUS, along with antonyms, related words, and example sentences at Thesaurus.com, the world's most trusted free thesaurus. is: 10,100 - 1,900 = 8,200 sf. untouched. imperviously synonyms, imperviously pronunciation, imperviously translation, English dictionary definition of imperviously. Environmental and permitting concerns need to be addressed as land development progresses. House roofs! Usage: He was impervious to her pleas for understanding. adjective. Very special care should be taken so to proportion the sand as to make a perfectly impervious mixture. Impervious surfaces prevent infiltration, lead to increased water flow on the surface of the land, and much more rapid . The County's definition includes examples that address administrative grey areas if they are not defined. Joseph Thompson re Fr. Mapping Impervious Surface Areas in Mecklenburg County Impervious surfaces are areas where a portion of the land has been modified to reduce the land's natural ability to absorb and hold rainfall. im- not + per through + via way. Impervious cover is any type of human-made surface that doesn't absorb rainfall, including: Uncovered wooden decks and unpaved portions of driveways count as 50% impervious cover. definition, it is not readily apparent that the reference is intended to include any and all gravel or only compacted gravel. (adjective) A material impervious to water. a material impervious to water someone impervious to argument . The definition of impervious surface, as defined in King County Code 9.04.020(P) reads in part "a hard surface area which either prevents or retards the entry of water into the soil mantle as under natural conditions prior to development, and/or a hard Use filters to view other words, we have 667 synonyms for impervious. Decker and "homophobia" RC1/4 and RC1/2 series fixed-carbon composition, non-inductive, low-capacitance resistors withstand larger short-term pulses and higher voltages than carbon film resistors, . impervious - WordReference English dictionary, questions, discussion and forums. These are all "impervious surfaces"; impervious to the water from precipitation. Browse the use examples 'impervious strata' in the great English corpus. Porous pavement consists of pervious asphalt or concrete materials which are both included in the Commission definition of "impervious surface." Porous pavement is designed to allow percolation or infiltration of stormwater through the surface into the soil below, where the water is then naturally-filtered, and pollutants are removed. Did you know? Impervious surface coverage can be limited by restricting land use density (such as a number of homes per acre in a subdivision), but this approach causes land elsewhere (outside the subdivision) to be developed, to accommodate the growing population. Such surfaces are those that can be thoroughly and repeatedly cleaned and disinfected, will not retain odors, and from which fluids bead up and run off or can be removed without their being . Waterproofing a building's flat roof is an important but difficult procedure that requires melting together the edges of bitumen-based sheet material to create an impervious layer. He clasped his arms behind his head and lay down, impervious to the cold. Meaning of impervious. Examples of Impervious in a sentence. The Harry Potter Glossary. • The brass table top is impervious to liquids. See more. From Fr. Incapable of being penetrated: a material impervious to water. Find more opposite . 1 Not allowing fluid to pass through. No. impervious layer. The amount of area that does not absorb water (impervious) will significantly "The soil which offers the minimum possible resistance to the flow of the water is called as pervious soil.". Sample 1. impervious synonyms, impervious pronunciation, impervious translation, English dictionary definition of impervious. More example sentences. Example Sentence. Impervious Surface. Driveways! 'In other words, it's not impervious to moisture but it will get you through an afternoon . The man was completely impervious to the deception we were trying. impervious and untouched. adjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house." figurative (person: unaffected) insensible adj mf. Define imperviously. Other than exposed natural rock croppings, impervious surfaces are completely human-created and are an unnatural part of most ecosystems.. Impervious surfaces are the main contributor to excess stormwater runoff that would otherwise have been retained on site in natural forests or meadows. "This gulf impassable, impervious .", "The minds of these zealots were absolutely impervious ." In many natural systems, most rainfall infiltrates into the soil, and slowly moves to streams, springs, or aquifers. Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air. a substance impervious to light. Impervious area means the area of the premises that is impervious to rainfall or overland flow, including areas of the premises covered by compacted gravel. Definition in the dictionary English. Please call 512-494-9400 and ask about . It includes surfaces such as compacted gravel, streets, driveways, sidewalks, parking areas, buildings and other similar structures. Example Figure 3-1: Existing parking lot with 12,000 sf of impervious surface. impervious to • The college administration seemed impervious to criticism. Impervious Surface Ratio (ISR) What is an Impervious Surface? A magic spell Hermione put on Harry's glasses so they would repell water during a Quidditch match. synonyms. Impervious - Impervious Meaning - Impervious Examples - Impervious Definition - C2 Vocabularyhttp://www.iswearenglish.com/ https://www.facebook.com/isweareng. An impervious surface area includes and hard-surfaced, man-made area that does not readily absorb or retain water, including but not limited to building roofs, parking and driveway areas, sidewalks and paved recreational facilities. 'This impervious drape allows a 3-sq inch opening at the femoral site and covers the patient from head to toe.'. Apr 10, 2011 #14 As others said before, it comes down to why you are making the distinction. unreceptive. Pervious pavement is designed to let water naturally seep through it and go down into the soil beneath. What's the definition of Impervious in thesaurus? Antonyms for impervious include receptive to, susceptible to, receptive, susceptible, weak, negotiable, passable, penetrable, permeable and porous. Definition of impervious adjective in Oxford Advanced American Dictionary. Learn the definition of 'impervious strata'. 'an impervious layer of basaltic clay'. a coat impervious to rain. unapproachable. Impervious definition, not permitting penetration or passage; impenetrable: The coat is impervious to rain. Streets and pavement! 81. Impervious Definition from Arts & Humanities Dictionaries & Glossaries. Based on 1 documents. Alternatives The City could decide to change the code to address the following issues in the definition of impervious area: Gravel, or more commonly and more specifically, compacted gravel. Check out the pronunciation, synonyms and grammar. Impervious Surfaces Figure 2: Different semi-pervious walkway surfaces can minimize runoff and add interest to the landscape. inviolable. Instead, the water runs off the impervious surface, picking up many types of pollution in the process, and then flows into a storm drain or a nearby body of water. The shoreland rules do not have an impervious surface definition. Adjective. Adjective (en adjective) Unaffected or unable to be affected by. Information and translations of impervious in the most comprehensive dictionary definitions resource on the web. Impervious Surface is defined as that area on a piece of property that does not allow rainfall or stormwater to pass through. Please call 512-494-9400 and ask about . impervious and unapproachable. 4 letter words 'The coatings are weldable and impervious to automotive and hydraulic fluids.'. adjetivo de una sola terminación: Adjetivos de una sola terminación en singular ("amable", "constante") pero que sí varían en plural ("amables . Net Impervious Area. Examples Stem. Defining permeable pavers as impervious surface addresses . We've arranged the synonyms in length order so that they are easier to find. Pervious soil: It may be defined as. Examples of Impervious Area. Alternatively, urban structures can be built differently to make them function more like naturally pervious soils; examples . impervious and inviolable. What does impervious mean? Smart growth strategies can help to reduce the impact of new development on stormwater . All Free. Impervious Surface Growth Model. Synonyms for IMPERVIOUS: impenetrable, impermeable, tight, impassable, impregnable; Antonyms for IMPERVIOUS: penetrable, permeable, pervious, negotiable, passable antonyms. 2.2 Site Coverage (Pervious versus Impervious Areas) Another very important aspect to stormwater management is the site coverage. The broken window is not impervious to the rain. The impervious cover calculation isn't as easy as just adding up square footage. imperviously synonyms, imperviously pronunciation, imperviously translation, English dictionary definition of imperviously. 56. Impervious surfaces are surfaces that allow little or no stormwater infiltration into the ground. Learn more. thesaurus. 26. 'The coatings are weldable and impervious to automotive and hydraulic fluids.'. * , title=(The Celebrity), chapter=5 , passage=Although the Celebrity was almost impervious to sarcasm, he was now beginning to exhibit visible signs of uneasiness, the consciousness dawning upon him that his eccentricity was not receiving the ovation it merited. OSHA safety data sheets use the phrase "wear impermeable or impervious" clothing. 'This impervious drape allows a 3-sq inch opening at the femoral site and covers the patient from head to toe.'. [1913 Webster] The minds of these zealots were absolutely impervious. (Adjective) Cant get through, cannot be penetrated, unmoved by opinion, argument or suggestion. 1. If it is about stormwater run-off and the load on the . Impervious Surface Law and Legal Definition Impervious surface is defined by 9 CFR 1.1 to mean "a surface that does not permit the absorption of fluids. However, no material will remain permanently impervious to a chemical. [1913 Webster] This gulf impassable, impervious. See more. Impervious cover is any type of human-made surface that doesn't absorb rainfall, including: Uncovered wooden decks and unpaved portions of driveways count as 50% impervious cover. See Voyage.] Search impervious and thousands of other words in English definition and synonym dictionary from Reverso. Since the bank installed an impervious safe, it has not been robbed. Most related words/phrases with sentence examples define Impervious meaning and usage. Filed Under: Soil Mechanics 1. Messages 5,170 Points 31. The . Otis Cyburbian. 77. impervious: 1 adj not admitting of passage or capable of being affected "a material impervious to water" "someone impervious to argument" Synonyms: imperviable impermeable preventing especially liquids to pass or diffuse through fast resistant to destruction or fading acid-fast not easily decolorized by acid solutions; pertains to . Incapable of being penetrated. }}Preventive of any penetration; impenetrable, impermeable . Definition of Impervious. Definition (adj) not admitting of passage or capable of being affected Synonyms: imperviable. Stormwater runoff is a major contributor to water pollution. Their permeability ranges from less than 1/100 to 1/100000 m/sec, while the soils offering maximum resistance are called as . Let us hope these thin walls are impervious to the freezing cold tonight! If someone is impervious to something,they are not…. adjective. The banner picture shows it all — Superhighways! adjective. By basic definition a concrete structure is impervious. You can complete the definition of impervious given by the English Definition dictionary with other English dictionaries: Wikipedia, Lexilogos, Oxford, Cambridge, Chambers Harrap, Wordreference, Collins Lexibase dictionaries, Merriam Webster. And a dry well likely increases the rate of percolation, but not the surface area able to percolate. impervious, impervious to adj. Currently, a large percentage of roads . --Milton. Definitions of impervious - OneLook Dictionary Search. Not permeable; not permitting the passage of substances (for example, liquids, gases) or heat through a membrane or other structure. Instead, with impervious pavement, water runs off into storm drains that are lined along the road or paved surface at particular intervals. impervious ( comparative more impervious, superlative most impervious ) Unaffected or unable to be affected by something. The impervious soil have permeability < 10 -8 m/sec. sentences. METHODS Methods for calculating the anticipated impervious surface coverage under each of the Modest increases in impervious surface due to construction of cottages can in most cases easily be offset by modest removal of impervious surfaces on affected lots, and/or disconnection of downspouts from pipes that discharge runoff to streets.. Report Card Gives Low Marks to City Council Members « PubliCola. For example, Silts, clay and their mixtures. "Homophobia" is a made-up word, undefined, and in fact impervious to any reasonable definition. 1. Pervious is an antonym of impervious. 30. Definition. Jump to: General, Art, Business, Computing, Medicine, Miscellaneous, Religion, Science, Slang, Sports, Tech, Phrases. The focus should be on choosing protective clothing that adequately protects from the hazards of a specific job and meets the specific tasks of a job. Impervious Not pervious; not admitting of entrance or passage through; as, a substance impervious to water or air. Reduced Imperious Area Credit. When it rains in this locale, water no longer seeps into the ground, but now runs off into storm sewers and then quickly into local creeks. impervious definition: 1. not allowing liquid to go through: 2. As adjectives the difference between pervious and impervious is that pervious is admitting passage; capable of being penetrated by another body or substance; permeable while impervious is unaffected or unable to be affected by. The new project will have a total new and replaced impervious area of 10,100 sf. The judge was impervious to all pleas for mercy.She was a confident person but not impervious to criticism. To calculate impervious cover, you add to building coverage the extra elements included in impervious cover like driveways and other uncovered, impervious areas. impervious and unreceptive. Define imperviously. Literature Dictionaries. Impervious area means impermeable surfaces, such as pavement or rooftops, which prevent the infiltration of stormwater and urban runoff into the ground. If you have these features, we may be able to lower the impervious cover on your account, which will in turn lower your bill. adj. | Meaning, pronunciation, translations and examples 1897 December (indicated as 1898 ), Winston Churchill, chapter V, in The Celebrity: An Episode, New York, N.Y.: 'In other words, it's not . The impervious surface definition includes decks, patios, gravel driveways and permeable pavers. Appendix F: Impervious Areas PURPOSE An estimate of impervious surface coverage by sub-basin was conducted to quantitatively measure differences in environmental impacts among proposed land use planning alternatives. Any dispute contesting the amount of impervious area allocated to a given property will be addressed by comparing the digital record of impervious area to actual measurements provided by the rate payer based on the following definition of "impervious cover". not allowing something to enter or pass through. 1 Not allowing fluid to pass through. 40. Related terms for impervious- synonyms, antonyms and sentences with impervious. 1 Not allowing fluid to pass through. Net Impervious Area. An impervious surface is a hard area that doesn't allow water to seep into the ground. The examples of such type of soils include coarse grained soils. [more impervious; most impervious] 1. technical : not allowing something (such as water or light) to enter or pass through — usually + to. 1. We found 40 dictionaries with English definitions that include the word impervious: Click on the first link on a line below to go directly to a page where "impervious" is . • Was it possible for anyone to be so impervious to the things he saw? 'In other words, it's not . (> 5,000 sf) Incapable of being penetrated: a material impervious to water. adj. IMPERVIOUS 'IMPERVIOUS' is a 10 letter word starting with I and ending with S Synonyms, crossword answers and other related words for IMPERVIOUS We hope that the following list of synonyms for the word impervious will help you to finish your crossword today. [L. impervius; pref. If you have these features, we may be able to lower the impervious cover on your account, which will in turn lower your bill. adjectives. Impervious pavement does not allow water to seep through it. Impervious Coverage means any surface which has been compacted or covered with a layer of material so that it is highly resistant to infiltration by water. Impervious surfaces are roads, buildings, parking lots, and other surfaces that water cannot easily penetrate. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. The . Define impervious. impervious surfaces increase, stormwater runoff increases in quantity, speed, temperature, and pollutant load. Lists. The soil which offers maximum resistance to the flow of water through it is known as impervious soil. impervious layer. 'This impervious drape allows a 3-sq inch opening at the femoral site and covers the patient from head to toe.'. 1 When rainwater washes over impervious surfaces such as rooftops, parking lots, and roads, it collects and carries pollutants that ultimately flow into waterways. Match all exact any words . The amount of impervious area in both the pre-development and post-development conditions is a major topic of discussion in land development that can be a main factor in determining the proposed layout for a new project. impervious - Dictionary definition and meaning for word impervious. Thus, Impervious Surface is a critical factor in determining the impact of residential, commercial and industrial developments and properties on stormwater program management services. • The trees everywhere over-grow the road, so that it is totally impervious to the sun, except at a few places. Interactive Impervious Cover Map. Definition of impervious in the Definitions.net dictionary. Impervious is an antonym of pervious. The Impervious A total new and replaced impervious area of 10,100 sf and the load on the a ''! All pleas for mercy.She was a confident person but not impervious to something, they are defined! 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