* Although the U.S. Geological Survey collects data every five years, there are a few years of delay in releasing the data in order to fully process it.
Years Available: 2000, 2005, 2010, 2015
Permanent Link: http://data.sagepub.com/sagestats/6601
General Notes: *Median value gives the value for the "average" county for this metric, the 50th percentile of all counties reporting data. **Water used in the process of generating electricity with steam-driven turbine generators. Term used in previous water-use circulars to describe the combined public-supply deliveries to thermoelectric-power plants and self-supplied thermoelectric-power withdrawals. For 2000 and 2005, thermoelectric-power water use refers only to self-supplied thermoelectric-power withdrawals. Thermoelectric power was subdivided into fuel types of fossil fuel, geothermal, and nuclear from 1985-1995 and into cooling types of once-through and recirculating from 2000 to present. Also known as closed-loop cooling system. Water is withdrawn from a source, circulated through heat exchangers, cooled, and then re-used in the same process. Recirculation cooling systems may use induced draft cooling towers, forced draft cooling towers, cooling ponds, or canals. Water that is on the Earth's surface, such as in a stream, river, lake, or reservoir. Water that contains less than 1,000 milligrams per liter (mg/L) of dissolved solids. Generally, water with more than 500 mg/L of dissolved solids is undesirable for drinking and many industrial uses.