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22 Cards in this Set

  • Front
  • Back
Surface water
Water found in lakes, rivers, and streams
Ground Water
Water occurring below the earth's surface that is available to feed springs, flow into streams, and supply wells
Layers of rock and soil that collect and store ground water and will allow water to flow through it with relative ease
Two types of Aquifer
Confined and unconfined
Confined Aquifer
Water bearing stratum that has layers of rock and soil that do not allow water to pass through them (impermeable layers), both above and below
Unconfined Aquifer
Bound by an impermeable stratum below, but has a permeable layer of rock or soil above that will allow water to pass through it.
Water Table
The highest point to which ground water rises
The property of a material or soil that does not allow or allows with great difficult, the movement or passage of water
Potable Water
Water that does not contain objectionable pollution contamination minerals, or ineffective agents, and it considered satisfactory for drinking.
Hydrologic Cycle
A process that supplies water to both surface and ground sources
Conversion of water from streams, rivers, lakes and ponds (surface water)into a vapor
When the vapor in he cloud comes in contact with cooler air, it condenses. Condensed vapor is heavier than air and it falls t the earth as rain, sleet, hail or snow (depending on temperature) This is known as precipitation
Water flowing over the earth. As the precipitation falls to the earth's surface, some of it flows over the surface of the earth and forms streams, rivers, lakes, and ponds.
Process by which part of the water falling as rain, sleet, hail, and snow seeps through the ground
The storage of ground water is the source of water for wells. The water that filters through the rocks and soil is collected and stored in certain types of rock layers as ground water.
Sanitary Survey
Survey taken twice a year to identify and correct conditions in the vicinity of the well or aquifer that can cause its waters to be contaminated
Three major sources of surface water available for domestic use
Rivers, Lakes, Man made resevoirs
The hydrologic cycle is nature's way of ________the limited supply of water
5 steps in the hydrologic cycle
Evaporation, Condensation/Precipitation, Runoff, Infiltration, Storage
Two types of aquifers
Confined and unconfined
How often do you perform a sanitary survey?
twice a year
Purpose of water treatment
Supply clean, clear, potable water to base facilities, personnel, and support equipment