arizona

Visualization of water use in the United States

The U.S. Geological Survey has produced a visualization that shows how much freshwater is used by each state for a variety of purposes. The visualization resizes the states according to how much freshwater they use.

The visualization shows freshwater withdrawals for thermoelectric power generation, public supply, irrigation, industrial use, or total withdrawals, with data available in 5-year intervals from 1950 to the present.

Click here to access the visualization of state water use.

Dr. M. Lee Allison (1948 - 2016)

Dr. M. Lee Allison
Dr. M. Lee Allison, State Geologist and Director of the Arizona Geological Survey, passed away Tuesday, August 16th, at noon after suffering a critical head injury from a fall at his home on Saturday. 
 
Lee’s passing is a tragic loss for his wife, family, staff of the Arizona Geological Survey, the geologic and geoinformatics communities, and Lee’s broad circle of friends, colleagues, and acquaintances around the world.  He was an incredibly dynamic leader of our agency, and a world-wide leader in many areas that were important to him. We mourn his passing, and will do our best to carry on his legacy.
 
There will not be a memorial service. Lee’s family has requested they not be contacted. Any messages of condolence can be addressed to AZGS team members; we will pass them along to his family.

Interactive map of the chemistry and mineralogy of soils in the United States

The U.S. Geological Survey provides geochemical and mineralogical maps for the conterminous United States, based on sampling data with a spatial resolution of 1 sample per 1,600 square km, for a total of 4857 sites across the country. The resulting interactive maps allow users to see regional variations in soil chemistry at different depths in the soil.
 

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