Zone of aeration definition

Zone of aeration means the unsaturated zone that occurs below the ground surface and above the point at which the upper limit of the water table exists.
Zone of aeration means a subsurface zone containing water under pressure less than that of the atmosphere, including water held by capillary and containing air or gases generally under atmospheric pressure. This zone is limited above by the land surface and below by the surface of the zone of saturation, e.g., the water table.
Zone of aeration means the unsat- urated zone that occurs below the ground surface and the point at which the upper limit of the water table exists. [1973 c.835 §208; 1975 c.167 §1; 1977 c.828 §1; 1991 c.598 §3; 1999 c.551 §3; 2009 c.248 §3]

Examples of Zone of aeration in a sentence

  • Zone of aeration Zone of saturation Permeable rock Groundwater soaks into the ground, passes through the zone of aeration, and collects in the zone of saturation.The zone of aeration has three layers.


More Definitions of Zone of aeration

Zone of aeration means the unsaturated zone that occurs below the ground surface
Zone of aeration means a subsurface zone extending from the water table to the surface of the land.
Zone of aeration means a subsurface zone containing water under a pressure lower than that of the atmosphere, including water held by capillarity; and containing air or gases generally under atmospheric pressure. This zone is bounded above by the land surface and below by the water table;
Zone of aeration means a subsurface zone containing water under pressure less than that of the atmosphere, including water held by capillary and containing air or gases generally under atmospheric pressure. This zone is limited above by the land surface and below by the surface of the zone of saturation, i.e., the water table. 2.0 GENERAL STANDARDS, PROHIBITIONS AND PROVISIONS2.1 Each and every owner/lessee of real property is jointly and severally responsible for:2.1.1 Disposing of wastewater in conformance with all applicable Regulations; and2.1.2 Connecting all plumbing fixtures on that property, from which wastewater is or may be discharged, to a central wastewater system or on‑site wastewater treatment and disposal system approved by the Department; and2.1.3 Maintaining, repairing, and/or replacing the system as necessary to assure proper operation of the system.2.2 No permit may be issued by the Department under these Regulations unless the county or municipality having land use jurisdiction has first approved the activity through zoning procedures provided by law.2.3 Any county governmental unit may assume responsibility and authority for administering its own regulatory program for on‑site wastewater treatment and disposal systems pursuant to 7 Del.C. §6003(d) if the delegated program establishes standards no less stringent than the standards established in these Regulations. 2.4 Administrative and judicial review and the enforcement under these Regulations shall be in accordance with the provisions of 7 Del.C. Ch. 60.2.5 If any part of these Regulations, or the application of any part thereof, is held invalid or unconstitutional, the application of such part to other persons or circumstances, and the remainder of these Regulations, shall not be affected thereby and shall be deemed valid and effective.2.6 These Regulations, being necessary for the health and welfare of the State and its inhabitants, shall be liberally construed in order to preserve the land, surface water and groundwater resources of the State.2.7 At the sole discretion of the Department, if the proposed operation of a system may cause pollution of public waters or create a public health hazard, system installation or use shall not be authorized. 2.7.1 In no case shall an active OWTDS be placed installed over or dispose of wastewater onver top of an existing OWTDS without sand-lining or properly abandoning the old system.2.8 All wastewater shall be treated and disposed of in a manner approved by th...
Zone of aeration means that region of the soil or rock between the land surface and the nearest saturated zone in which the interstices are occupied partially by air.

Related to Zone of aeration

  • Zone 3 means all of that part of the Lower Peninsula south of the line described in subdivision (bb).

  • business waste means waste that emanates from premises that are used wholly or mainly for commercial, retail, wholesale, entertainment or government administration purposes;

  • Operating Permit means a permit issued pursuant to section 10 of this local law. The term “Operating Permit” shall also include an Operating Permit which is renewed, amended or extended pursuant to any provision of this local law.

  • Master plumber means an individual who possesses the necessary skills and qualifications to plan and supervise the installation of plumbing and who is licensed as a master plumber.

  • Zone 2 means British Columbia and Alberta Receipt Points and Liquids Receipt Points at or upstream of the Blueberry Hill Compressor Station. ARTICLE 2 QUALITY‌ 2.1 Subject to Articles 2.4, 2.5, 2.6, 2.7 and 21.1 hereof, Gas tendered to Transporter at Receipt Points shall conform to the following Quality Specifications:‌

  • Ozone season means the period of time beginning May 1 of a year and ending on September 30 of the same year, inclusive.

  • Floodplain Development Permit means any type of permit that is required in conformance with the provisions of this ordinance, prior to the commencement of any development activity.

  • fire hydrant means a fire plug or fixed pillar fire hydrant;

  • Seismic impact zone means an area with a 10% or greater probability that the maximum horizontal acceleration in lithified earth material, expressed as a percentage of the earth's gravitational pull (g), will exceed 0.10g in 250 years.

  • Construction waste means solid waste which is produced or generated during construction, remodeling, or repair of pavements, houses, commercial buildings, and other structures. Construction wastes include, but are not limited to lumber, wire, sheetrock, broken brick, shingles, glass, pipes, concrete, paving materials, and metal and plastics if the metal or plastics are a part of the materials of construction or empty containers for such materials. Paints, coatings, solvents, asbestos, any liquid, compressed gases or semi-liquids and garbage are not construction wastes.

  • Standard Methods for the Examination of Water and Wastewater means the most recent edition of Standard Methods for the Examination of Water and Wastewater published jointly by the American Public Health Association, the American Waterworks Association and the Water Environment Federation;

  • CREFC® Significant Insurance Event Template A report substantially in the form of, and containing the information called for in, the downloadable form of the “Interest Significant Insurance Event Template” available as of the Closing Date on the CREFC® Website, or such other form for the presentation of such information and containing such additional information as may from time to time be approved by the CREFC® for commercial mortgage securities transactions generally.

  • Process wastewater means any water which, during manufacturing or processing, comes into direct contact with or results from the production or use of any raw material, intermediate product, finished product, by-product, or waste product.

  • Sedimentation means a process for removal of solids before filtration by gravity or separation.

  • Empowerment Neighborhoods means neighborhoods designated by the Urban Coordinating Council “in consultation and conjunction with” the New Jersey Redevelopment Authority pursuant to N.J.S.A 55:19-69.

  • Nonpoint source pollution means pollution such as sediment, nitrogen, phosphorous, hydrocarbons, heavy metals, and toxics whose sources cannot be pinpointed but rather are washed from the land surface in a diffuse manner by stormwater runoff.

  • Natural Boundary means the visible high water mark, or bankfull width, of any lake, river, stream or other body of water where the presence and action of the water are so common and usual, and so long continued in all ordinary years, as to mark on the soil of the bed of the body of water a character distinct from that of its banks, in vegetation, as well as in the nature of the soil itself;

  • Imminent danger to the health and safety of the public means the existence of any condition or practice, or any violation of a permit or other requirement of this chapter in a surface coal mining and reclamation operation, which condition, practice, or violation could reasonably be expected to cause substantial physical harm to persons outside the permit area before such condition, practice, or violation can be abated. A reasonable expectation of death or serious injury before abatement exists if a rational person, subjected to the same conditions or practices giving rise to the peril, would not expose the person's self to the danger during the time necessary for abatement.

  • General air quality operating permit or "general permit" means an air quality operating permit that meets the requirements of ARM 17.8.1222, covers multiple sources in a source category, and is issued in lieu of individual permits being issued to each source.

  • Transboundary movement means any movement of hazardous wastes or other wastes from an area under the national jurisdiction of one State to or through an area under the national jurisdiction of another State or to or through an area not under the national jurisdiction of any State, provided at least two States are involved in the movement;

  • Public highway means a public highway, road, street, avenue, alley, or thoroughfare of any kind, or a bridge, tunnel, or subway used by the public.

  • Stormwater management planning area means the geographic area for which a stormwater management planning agency is authorized to prepare stormwater management plans, or a specific portion of that area identified in a stormwater management plan prepared by that agency.

  • Stormwater management measure means any practice, technology, process, program, or other method intended to control or reduce stormwater runoff and associated pollutants, or to induce or control the infiltration or groundwater recharge of stormwater or to eliminate illicit or illegal non-stormwater discharges into stormwater conveyances.

  • Water pollution means the unpermitted release of sediment from disturbed areas, solid waste or waste-derived constituents, or leachate to the waters of the state.

  • In-stream Waste Concentration or "(IWC)" means the concentration of a discharge in the receiving water after mixing has occurred in the allocated zone of influence.

  • Transient non-community water system or “transient non-CWS” means a non- CWS that does not regularly serve at least 25 of the same persons over six months of the year.