Stocks of water, the liquid derived from precipitation. A constituent of living matter and necessity for all life, it covers a large proportion of the earth's surface.
Assessing ground-water vulnerability to contamination: providing scientifically defensible information for decision makers [ More info] The information, citations, and hypothetical examples provided in this report highlight how basic principles and assessments are essential components of the regulatory and policy decision-making process. Link to PDF version.
Assessing Groundwater Availability in the High Plains Aquifer in Parts of Colorado, Kansas, Nebraska, New Mexico, Oklahoma, South Dakota, Texas, and Wyoming [ More info] Explains concepts and methods used to determine the likely future supply of usable water in this major aquifer.
Assessing groundwater availability in the North Atlantic Coastal Plain aquifer system [ More info] Nature, history, and distinctive characteristics of this aquifer system help us to understand the likely distribution of available groundwater.
Availability of Groundwater Data for California, Water Year 2008 [ More info] Summary showing number of wells in each county for which water level measurements are available, with description of methodology and well numbering system.
Availability of groundwater data for California, water year 2010 [ More info] Map of California showing the number of wells (by county) with available water-level or water-quality data for Water Year 2010, with descriptions of the data and instructions for obtaining them.
Changes in Water Levels and Storage in the High Plains Aquifer, Predevelopment to 2007 [ More info] Summarizes changes in water levels and drainable water in storage in the High Plains aquifer from predevelopment (before about 1950) to 2007.
Changes in water levels and storage in the High Plains Aquifer, predevelopment to 2009 [ More info] Summarizes graphically the areas where water levels have dropped, and by how much, in this extensive underground water reservoir that covers several states in the mid-continent.
Cooperative Water Program [ More info] Program that monitors, assesses, and communicates the results of the quantity and quality of water in rivers and aquifers.
Drought and deluge: Effects of recent climate variability on groundwater levels in eastern Arkansas [ More info] Water levels in wells completed in the Mississippi River Valley alluvial aquifer and the Sparta aquifer in eastern Arkansas respond to variability associated with annual precipitation.
Edwards Aquifer online resources [ More info] Recharge and discharge summaries and other data, aeromagnetic survey map, and publications on Edwards Aquifer, Texas.
Alphabetical Index of Topics
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