Impervious layer definition

Impervious layer means any layer of material in the soil profile that has a percolation rate slower than 120 minutes per inch.
Sample 1Sample 2Sample 3
Impervious layer means any layer of material in the soil profile that has a percolation rate slower than 240 minutes per inch.
Sample 1Sample 2Sample 3
Impervious layer means any layer of material that has a percolation rate slower than 240 minutes per inch (mpi).
Sample 1Sample 2Sample 3

Examples of Impervious layer in a sentence

  • Impervious layer or material is characterized as having a percolation rate slower than one hundred twenty (120) minutes per inch or having clay content of sixty (60) percent or greater.

  • Handpump Typical sub-surface dam Ground level Maximum storage About 1.0m Overflow Flow Flow Impervious layer Rock or impermeable material Sand dam construction showing reinforcing Sand dams A sand dam is a special type of sub-surface dam built across a seasonal river.

  • Impervious layer at the bottom shall be provided with low permeability soil blanket, HDPE sheeting 750 micron thick wherever required to prevent leaching of heavy metal.As per the arrangement, total volume of ash pond within the starter dyke height of 6 meter with 1-meter freeboard is calculated as 1,414,000m3.

  • Impervious layer revetmentAsphalt and concrete are often used as impervious layers in revetments.

  • Impervious layer map and final soil map of the Vouga basin 65 Figure 15.

  • Impervious layer reduces seepage, easy to ins tall Emergency access N/A N/A routes Vibration study N/A N/A CONCLUSIONS There are a number of conclusions which can be drawn from the above exercise and findings.

  • The production of 2015 very high resolution (~ 5m) layer products for Europe are being initiated by the European Environment Agency: Impervious layer; Forests; Grass and non-woody vegetation; Wetness and water; Small woody features.

  • The directors shall be eligible Members; provided however, no Owners representing the same Lot may serve on the Board at the same time.

  • The primary service model is a combination of Positive Behavior Support in the family home through contracted providers and wraparound service delivery.

  • Municipal functions: original and delegated and entrustedThe revision of the Law did not bring about significant changes in the functions of local self-governments.


More Definitions of Impervious layer

Impervious layer means any layer of material in the Soil Profile that has a
Sample 1Sample 2
Impervious layer means a strata, such as a clay or shale, that does not permit water to move through perceptibly.
Sample 1Sample 2

Related to Impervious layer

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

  • Impervious area means any surface that does not allow stormwater to infiltrate into the ground.

  • Regulated impervious surface means any of the following, alone or in combination:

  • 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.

  • Tank means an enclosed space which is formed by the permanent structure of a ship and which is designed for the carriage of liquid in bulk.

  • Iatrogenic infertility means an impairment of fertility by surgery, radiation, chemotherapy, or other medical treatment affecting reproductive organs or processes.

  • stacked bicycle parking space means a horizontal bicycle parking space that is positioned above or below another bicycle parking space and equipped with a mechanical device providing floor level access to both bicycle parking spaces.

  • Tandem parking means that two or more automobiles are parked on a driveway or in any other location on a lot, lined up behind one another.

  • Membrane filtration means a pressure or vacuum driven separation process in which particulate matter larger than one micrometer is rejected by an engineered barrier, primarily through a size exclusion mechanism, and which has a measurable removal efficiency of a target organism that can be verified through the application of a direct integrity test. This definition includes the common membrane technologies of microfiltration, ultrafiltration, nanofiltration, and reverse osmosis.

  • Loading or unloading means the handling of property: