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Misconception: Groundwater is a non-renewable resource.

Groundwater is constantly renewed by passing from atmospheric or surface water to groundwater in the hydrologic cycle.

Misconception: Water from springs is safe without treatment.

Although flow through the ground does have a purifying effect on water by filtering sediment, bacteria, and certain chemicals, the purification effect is limited. Large concentrations of chemicals may be too much to be completely removed, and certain chemicals may not be removed by the ground at all. Some groundwater is naturally unsuitable for drinking because of the minerals it has dissolved from the rock through which it flows.

Misconception: Groundwater and surface water are separate.

Groundwater, surface water, and atmospheric water are intimately related through the earth's water recycling machine, called the hydrologic cycle. Water passes repeatedly through all three parts of the cycle.

Misconception: Groundwater flows in underground rivers.

Little groundwater flows in open channels beneath the surface. Most flows through fractures in the rock, through millimeter sized opening between layers, and between the grains of the rock.

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14y ago

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