Alluvial groundwater definition

Alluvial groundwater means water located below the land surface within the Quaternary hydrostratigraphic unit that borders or underlies major perennial and intermittent streams in the Tongue River and Rosebud Creek basins. This unit is composed of unconsolidated alluvial deposits of clay, silt, sand, and gravel. For the purposes of this Compact, all other water below the land surface will be deemed nonalluvial groundwater.
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Alluvial groundwater means groundwater contained in water-bearing strata of Quaternary alluvium, which are geologic materials younger than the underlying Santa Fe Group sediments.
Sample 1

Examples of Alluvial groundwater in a sentence

  • Alluvial groundwater may discharge to Blacktail Creek (BTC) and Silver Bow Creek (SBC); therefore, groundwater capture and treatment systems are in place to minimize discharge of contaminated groundwater to BTC and SBC and prevent exceedances of surface water ARARs. This requires development of a groundwater monitoring plan that will ensure data is of adequate quality and is usable to assure the groundwater capture systems are operating effectively and preventing surface water standard exceedances.

  • The bore is located at the southern boundary of the Project buffer zone, adjacent to Goobang Creek, within the Lachlan Unregulated and Alluvial groundwater source.

  • Hydrology in northern California significantly affects the availability of SWP supplies; local hydrology affects the availability of Alluvial groundwater supplies, as well as demands; and dry- year reductions in SWP supplies affect the need for additional Saugus groundwater pumping.The SWP supply data used in this analysis are based on the results of SWP modeling studies conducted by DWR using CalSim, a computer model that simulates monthly operations of the SWP and CVP systems.

  • Alluvial groundwater levels fluctuate with rainfall and have not been impacted by previous mining at Newstan Colliery.

  • An interpolation has then been performed to estimate the calibration constants of cloudy and noisy situations.

  • While with treatment, there is sufficient Alluvial pumping capacity to achieve the Alluvial groundwater supply (Table 2-4A), it is planned that SCV Water will develop some future capacity as it constructs municipal supplies for the Newhall Ranch Specific Plan, as agricultural is retired.

  • Alluvial groundwater is also a source of recharge to the regional aquifer, as well as to the intermediate perched saturated zones (thereby providing potential downward pathways for contaminants released at the surface to eventually reach the regional aquifer).

  • Alluvial groundwater and surface water in water sources with highly connected surface and groundwaters are treated as a single ‘resource’ within this Plan.

  • The Lachlan Unregulated and Alluvial groundwater source is anticipated to contain a shallow (Cowra Formation) and a deep aquifer (Lachlan Formation).

  • Alluvial groundwater floods are associated with high river flows, with water flowing out through the banks of the river into the hydraulically connected alluvium, causing flooding behind embanked flood defences.

Related to Alluvial groundwater

  • 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.

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

  • 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.

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

  • 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.

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

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

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

  • 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.

  • Aquifer means a geologic formation, group of formations, or part of a formation capable of yielding a significant amount of groundwater to wells or springs.

  • Navigable waters ’ means the waters of the United States, including the territorial sea;

  • Septage means the liquid and solid material pumped from a septic tank, cesspool, or similar domestic sewage treatment system, or from a holding tank, when the system is cleaned or maintained.

  • Topsoil means a varying depth (up to 300 mm) of the soil profile irrespective of the fertility, appearance, structure, agricultural potential, fertility and composition of the soil;

  • Underground source of drinking water means an aquifer or its portion:

  • Potable means water suitable for drinking by the public.

  • Surface impoundment or "impoundment" means a facility or part of a facility which is a natural topographic depression, man-made excavation, or diked area formed primarily of earthen materials (although it may be lined with man-made materials), which is designed to hold an accumulation of liquid wastes or wastes containing free liquids, and which is not an injection well. Examples of surface impoundments are holding, storage, settling, and aeration pits, ponds, and lagoons.

  • Uppermost aquifer means the geologic formation nearest the natural ground surface that is an aquifer, as well as lower aquifers that are hydraulically interconnected with this aquifer within the facility's property boundary.

  • Impervious surface means a surface that has been covered with a layer of material so that it is highly resistant to infiltration by water.