NGWA has a series of information briefs on issues as they relate to groundwater. Please bookmark this page and check back for others as they become available.
In addition, NGWA has developed a series of information sheets that are available for the public that are available from this link.
Brackish water does not have an exact
definition, but it is typically defined as distastefully salty but less
saline than seawater (between 1,000 to 10,000 ppm [parts per million] in
total dissolved solids [TDS]). In addition to certain surface water
settings such as estuaries, brackish water can be found in aquifers. In
some regions of the country with limited availability of freshwater,
desalination of brackish groundwater is being used as an alternative
supply. Read more about brackish groundwater.
The National Ground Water Association invites others to join with it in recognizing that, givengroundwater’s vast reserves and broad geographical distribution, its generally good quality, andits protection from seasonal fluctuations and contamination, groundwater holds the promise toensure
future world communities an affordable and safe water supply. Further,
by recognizing that both surface water and groundwater constitute
essential resources, thoroughly integrated water resources management
strategies will serve to enhance the security, reliability, and quality
of the world’s water supplies. Read more about the global importance of groundwater.
The disposal of carbon dioxide (CO2) into
the subsurface via well injection, also known as geologic carbon
sequestration or carbon capture and storage (CCS), is one of a portfolio
of technologies under consideration as a viable approach to mitigating
greenhouse gas buildup. Recognizing that this option for carbon capture
holds great promise, it is important to understand it also has the
potential to endanger underground sources of drinking water if proper
safeguards are not taken. Read more about geologic carbon sequestration.
Groundwater is a critical component of this nation’s water resources. Approximately 78 percentof
community water systems and nearly all rural water supplies use
groundwater. Groundwater is the source for 42 percent of the nation’s
agricultural irrigation water. Additionally, groundwateralso feeds
streams and rivers, especially during periods of drought or low flow,
providing environmental benefits and sustaining ecosystem services. Read more about managed aquifer recharge.
Western states, with the exception of Utah and California, exempt small groundwater uses,such as for domestic or livestock purposes, from certain provisions of the states’ water withdrawal permitting, adjudication procedures, or both. In Utah, small groundwater users must go through the water withdrawal permitting process and California does not have a comprehensive, statewide groundwater permitting process. Read more about the regulation of exempt wells in the west.
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National Ground Water Association
601 Dempsey Rd.
Westerville, OH 43081
(614 898.7791 outside the US)
fax 614 898.7786