Hydraulic conductivity definition

Hydraulic conductivity means the quantity of water that will flow through a unit cross-sectional area of a porous material per unit of time under a hydraulic gradient of 1.0;

Hydraulic conductivity means the rate of water movement through the soil measured in meters per day (m/d) as determined by the following methods. For a saturated soil, the Bouwer-Rice method or its equivalent shall be used. For unsaturated soil, use a Guelph permeameter or an equivalent in situ constant-head permeameter in a boring finished above the water table. If an in situ method cannot be used for unsaturated soil because of depth, or if the soil is homogeneous and lacks flow-conducting channels, fractures, cavities, etc., laboratory measurement of hydraulic conductivity is acceptable.

Hydraulic conductivity means the rate at which water can move through a permeable medium (i.e., the coefficient of permeability).

Examples of Hydraulic conductivity in a sentence

• Hydraulic conductivity class shall be assigned based on the soil horizon with the minimum hydraulic conductivity in depth zone extending 6 inches above and 12 inches below planned depth to base of soil absorption trench.

• Hydraulic conductivity values averaging no greater than 1 x 10-6 cm/sec.

• Hydraulic conductivity may also be estimated based on the grain size distribution of the porous formation.

• Hydraulic conductivity is the discharge of water per unit area per unit hydraulic gradient in a subsurface formation.

• In addition to review of existing information, the methods used to characterize the hydrogeological conditions included the following activities: • Borehole drilling and logging; • Installation and development of groundwater monitoring wells; • Hydraulic conductivity testing (packer tests and slug tests); • Measurements of groundwater level in boreholes and wells; and • Measurements of inflow rates and water levels in the existing decline and pressure heads in underground boreholes.

More Definitions of Hydraulic conductivity

Hydraulic conductivity means a specific mathematical coefficient (quantitative) that relates the rate of water movement to the hydraulic gradient. A term of Darcy’s law Q = KAi where K represents hydraulic conductivity and is the current standard for measuring a soils ability to transmit water.

Hydraulic conductivity means the volume of water at the existing kinematic viscosity that will move in a porous medium in unit time under a unit hydraulic gradient through a unit area measured at right angles to the direction of flow.

Hydraulic conductivity means a measure of the capacity of a porous medium (rock or soil) to transmit water. It is expressed as the volume of water that will flow through a unit length of a unit cross-sectional area of the porous medium in a unit time with a unit head loss.

Hydraulic conductivity means the rate of flow in gallons per day (gpd) through a cross section of one square foot (ft2) under a unit hydraulic gradient (gpd/ft2).

Hydraulic conductivity means the rate of water movement through the soil measured in meters per day (m/d) as determined by the following methods. For a saturated soil, the Bouwer-Rice method or its equivalent shall be used. For unsaturated soil, use a Guelph permeameter or an equivalent in situ

Hydraulic conductivity means the rate of water movement through the soil measured in meters per day (m/d) as determined by the following methods. For a saturated soil, the Bouwer-Rice method or its equivalent shall be used. For unsaturated soil, use a Guelph permeameter or an equivalent in situ constant-head permeameter in a boring finished above the water table. If an in situ method cannot be used for unsaturated soil because of depth, or if the soil is homogeneous and lacks flow-conducting channels, fractures, cavities, etc., laboratory measurement of hydraulic conductivity is acceptable.If laboratory methods are used, collect undisturbed soil samples using a thin-walled tube sampler in accordance with American Society of Testing and Materials (ASTM) Standard D1587. Samples shall be clearly marked, preserved and transported to the laboratory. The laboratory shall measure hydraulic conductivity using a constant-head permeameter in accordance with ASTM Standard D2434 or a falling-head permeameter in accordance with accepted methodology.

Hydraulic conductivity means the rate at which water can move through a permeable medium