What is the interaction between groundwater and surface water?

Surface water seeps into the ground and recharges the underlying aquifer—groundwater discharges to the surface and supplies the stream with baseflow. USGS Integrated Watershed Studies assess these exchanges and their effect on surface-water and groundwater quality and quantity.

What are some of the important interactions between surface and groundwater?

Surface-water/groundwater interactions include the exchange of water, and the chemicals that may be present in the water, which can lead to issues with water supply and water quality. Groundwater can be a major contributor to streams, lakes, and wetlands while surface water can contribute recharge to groundwater.

How does groundwater affect the ecosystem?

Some human activities, such as pumping water into the ground for oil and gas extraction, can cause an aquifer to hold too much ground water. Too much ground water discharge to streams can lead to erosion and alter the balance of aquatic plant and animal species.

What is the relationship between groundwater and surface water quizlet?

Terms in this set (11) Surface water is all water above the land, including lakes, rivers, streams, ponds, floodwater, and runoff. Ground water is the water beneath the surface of the earth, consisting largely of surface water that has seeped down: the source of water in springs and wells.

How do streams and groundwater interact with one another?

The interaction takes place in three basic ways: streams gain water from inflow of groundwater through the streambed (gaining stream), streams lose water to groundwater by outflow through the streambed (losing stream), or. they do both, gaining in some reaches and losing in other reaches.

Why is groundwater and surface water important?

Groundwater, which is in aquifers below the surface of the Earth, is one of the Nation’s most important natural resources. Groundwater is the source of about 37 percent of the water that county and city water departments supply to households and businesses (public supply).

How does groundwater pollution affect the environment?

Contamination of ground water can result in poor drinking water quality, loss of water supply, degraded surface water systems, high cleanup costs, high costs for alternative water supplies, and/or potential health problems. The consequences of contaminated ground water or degraded surface water are often serious.

What are the problems related to groundwater availability?

Depletion of water tables, saltwater encroachment, drying of aquifers, groundwater pollution, water logging and salinity, etc. are major consequences of overexploitation and intensive irrigation. It has been reported that in many parts of the country the water table is declining at the rate of 1–2 m/year.

Why is it important to understand the relationship between surface water and groundwater?

Pollution of surface water can cause degradation of ground-water quality and conversely pollution of ground water can degrade surface water. Thus, effective land and water management requires a clear understanding of the linkages between ground water and surface water as it applies to any given hydrologic setting.

What is the relationship between surface water groundwater and a watershed?

When groundwater discharges into surface water, they flow together. Streams and rivers flow down the valley of the watershed until they join larger rivers and, eventually, reach the ocean. Thus, groundwater typically flows toward a stream, while the stream flows toward the ocean.

What is the relationship between surface water and ground water?

Groundwater and Surface-Water Interactions. In many situations, surface-water bodies gain water and solutes from ground-water systems and in others the surface-water body is a source of ground-water recharge and causes changes in ground-water quality. As a result, withdrawal of water from streams can deplete ground water or conversely,…

How do surface-water bodies interact with each other?

These interactions take many forms. In many situations, surface-water bodies gain water and solutes from ground-water systems and in others the surface-water body is a source of ground-water recharge and causes changes in ground-water quality.

What is groundwater/surface water exchange?

Groundwater is a major source of water to streams, lakes, and wetlands; surface water can also recharge (replenish) groundwater supplies. Traditional methods of collecting groundwater/surface-water exchange data can be labor intensive. The effects of groundwater/surface-water exchange can occur on a variety of spatial and temporal scales.

How do groundwater upwelling zones affect stream water quality?

Groundwater upwelling to streams creates unique habitat by influencing stream water quality and temperature; upwelling zones also serve as vectors for contamination when groundwater is degraded.