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  2. Multilevel groundwater monitoring systems - Wikipedia

    en.wikipedia.org/wiki/Multilevel_groundwater...

    The Solinst Waterloo Multilevel groundwater monitoring system is a modular MLS designed to collect groundwater data from multiple depths within a single borehole via a series of monitoring ports positioned at specific intervals along 2-inch ID Schedule 80 PVC casing. The various monitoring ports can be connected to a combination of: sampling ...

  3. Center for Earth Resources Observation and Science

    en.wikipedia.org/wiki/Center_for_Earth_Resources...

    The Center for Earth Resources Observation and Science (EROS) is a United States Geological Survey data management, systems development, and research field center It serves as the national archive of remotely sensed images of the Earth's land surface acquired by civilian satellites and aircraft.

  4. National Centers for Environmental Information - Wikipedia

    en.wikipedia.org/wiki/National_Centers_for...

    The organization was created by merging the three existing NOAA National Data Centers with the goal of streamlining the collection and preservation of environmental data. The merger, which came in response to increasing demand for environmental information, was intended to make NOAA's data more useful through the application of consistent data ...

  5. List of aquifers in the United States - Wikipedia

    en.wikipedia.org/wiki/List_of_aquifers_in_the...

    Aquifers of the United States Withdrawal rates from the Ogallala Aquifer.. This is a list of some aquifers in the United States.. Map of major US aquifers by rock type. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to groundwater wells and springs.

  6. Denver Federal Center - Wikipedia

    en.wikipedia.org/wiki/Denver_Federal_Center

    The Denver Federal Center, in Lakewood, Colorado, is part of the General Services Administration (GSA) and is home to about 6,200 employees of agencies of the federal government of the United States. The center encompasses an area of about 670 acres (2.7 km 2 ) and has 90 buildings with over 4,000,000 square feet (400,000 m 2 ) of office ...

  7. United States Geological Survey - Wikipedia

    en.wikipedia.org/wiki/United_States_Geological...

    In 2015, the USGS unveiled the topoView website, a new way to view their entire digitized collection of over 178,000 maps from 1884 to 2006. The site is an interactive map of the United States that allows users to search or move around the map to find the USGS collection of maps for a specific area.

  8. MODFLOW - Wikipedia

    en.wikipedia.org/wiki/MODFLOW

    MODFLOW simulation. MODFLOW is the U.S. Geological Survey modular finite-difference flow model, which is a computer code that solves the groundwater flow equation.The program is used by hydrogeologists to simulate the flow of groundwater through aquifers.

  9. Hydrologic unit system (United States) - Wikipedia

    en.wikipedia.org/wiki/Hydrologic_unit_system...

    Aquifers of the United States are organized by national principal aquifer codes and names assigned by the National Water Information System (NWIS). Aquifers are identified by a geohydrologic unit code (a three-digit number related to the age of the formation) followed by a 4 or 5 character abbreviation for the geologic unit or aquifer name. [10]