Subsurface Gas Migration definition

Subsurface Gas Migration means underground landfill gases that are detected at any point on the perimeter pursuant to California Code of Regulations title 27, section 20921.

Examples of Subsurface Gas Migration in a sentence

  • Please contact your utility for information on entering into a payment agreement.

  • M-8 Other Potential Sources of ExposureM-8-1 Subsurface Gas Migration The USEPA has indicated a concern for exposure of off-site populations to explosions that may25 occur as a result of generation of methane gas and subsurface migration.

Related to Subsurface Gas Migration

  • Surface waters means all waters of the state as defined in G.S. 143-212 except underground waters

  • Soil means all unconsolidated mineral and organic material of any origin.

  • Surface water means all water which is open to the atmosphere and subject to surface runoff.

  • Groundwater means all water, which is below the surface of the ground in the saturation zone and in direct contact with the ground or subsoil.

  • Surface mining means mining by removing the overburden lying above the natural deposits and excavating directly from the natural deposits exposed, or by excavating directly from deposits lying exposed in their natural state and shall include dredge operations conducted in or on natural waterways or artificially created waterways within the state.

  • Subsurface tracer study means the release of a substance tagged with radioactive material for the purpose of tracing the movement or position of the tagged substance in the well-bore or adjacent formation.

  • Water well means an excavation that is drilled, cored, bored, augered, washed, driven, dug, jetted, or otherwise constructed for the purpose of exploring for groundwater, monitoring groundwater, utilizing the geothermal properties of the ground, or extracting water from or injecting water into the aquifer. “Water well” does not include an open ditch or drain tiles or an excavation made for obtaining or prospecting for oil, natural gas, minerals, or products mined or quarried.

  • Greenhouse Gas Emissions means emissions in terms of tonnes of CO2 equivalent of carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorcarbons (HFCs), perfluorocarbons (PFCs), nitrogen trifluoride (NF3) and sulphur hexafluoride (SF6) determined pursuant to Regulation (EU) No 525/2013 and falling within the scope of this Regulation;

  • Vegetation means trees, shrubs, nursery stock and other vegetation and includes the limbs or growth of any Vegetation.

  • Underground mining means all methods of mining other than surface mining.

  • Sediment means solid material, mineral or organic, that is in suspension, is being transported, or has been moved from its site of origin by air, water or gravity as a product of erosion.

  • Water surface elevation means the height, in relation to the National Geodetic Vertical Datum (NGVD) of 1929, the North American Vertical Datum (NAVD) of 1988, or other datum, where specified, of floods of various magnitudes and frequencies in the floodplains of riverine areas.

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

  • Pipelines means those pipelines within the Storage Facility that connect the Tanks to one another and to the receiving and delivery flanges of the Storage Facility.

  • Water means the chemical element defined as H2O in any of its three natural states, liquid, solid and gaseous.

  • Contaminated soil means soil that meets all of the following criteria:

  • Diatomaceous earth filtration means a process resulting in substantial particulate removal in which a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum), and while the water is filtered by passing through the cake on the septum, additional filter media known as body feed is continuously added to the feed water to maintain the permeability of the filter cake.

  • Wildlife habitat means a surface water of the state used by plants and animals not considered as pathogens, vectors for pathogens or intermediate hosts for pathogens for humans or domesticated livestock and plants.

  • Wildlife means all species of the animal kingdom whose

  • Plants means live plants and live parts of plants, including fresh fruit, vegetables and seeds;

  • Gas well means a well producing gas or natural gas from a common source of gas supply as determined by the commission.

  • Water Surface Elevation (WSE means the height, in relation to mean sea level, of floods of various magnitudes and frequencies in the floodplains of coastal or riverine areas.

  • Waters or “waters of the state” means any and all water, public or private, on or beneath the surface of the ground, which are contained within, flow through, or border upon Tennessee or any portion thereof except those bodies of water confined to and retained within the limits of private property in single ownership which do not combine or effect a junction with natural surface or underground waters.

  • Geologically hazardous areas means areas that because of their susceptibility to erosion, sliding, earthquake, or other geological events, are not suited to the siting of commercial, residential, or industrial development consistent with public health or safety concerns.

  • Gas means any mixture of hydrocarbons and noncombustible gases in a gaseous state consisting primarily of methane.

  • Potable means water suitable for drinking by the public.