Total withdrawals for all categories of use in 2015 were estimated to be 322 billion gallons per day (Bgal/d), a level of withdrawal not reported since before 1970. Total withdrawals in 2015 were 9 percent less than in 2010, continuing a sharp but steady downward trend since 2005. Freshwater withdrawals were also 9 percent less than in 2015.
••• WATER USE HOME • TOTAL WATER USE • SURFACE WATER USE • GROUNDWATER USE • TRENDS •••
Public Supply • Domestic • Irrigation • Thermoelectric Power • Industrial • Mining • Livestock • Aquaculture
Water Use Trends, 1950-2015
(source: Dieter, C.A., Maupin, M.A., Caldwell, R.R., Harris, M.A., Ivahnenko, T.I., Lovelace, J.K., Barber, N.L., and Linsey, K.S., 2018, Estimated use of water in the United States in 2015: U.S. Geological Survey Circular 1441, 65 p., https://doi.org/10.3133/cir1441.)
The drop in total withdrawals in 2015 was primarily caused by signicant decreases in withdrawals for thermoelectric power (28.8 Bgal/d), which accounted for 89 percent of the decrease in total withdrawals. The decrease in public-supply withdrawals accounted for another 9 percent of the decline in total withdrawals. Categories of use with larger withdrawals in 2015 than in 2010 were irrigation and mining. The increase in irrigation withdrawals was only about 2 percent greater than 2010 levels, partly resulting from updated 2010 data, and mining withdrawals were corrected downward for 2010.
Below are other water-use topics.
Water Use in the United States
Total Water Use
Surface-Water Use
Groundwater Use
Water-Use Terminology
- Overview
Total withdrawals for all categories of use in 2015 were estimated to be 322 billion gallons per day (Bgal/d), a level of withdrawal not reported since before 1970. Total withdrawals in 2015 were 9 percent less than in 2010, continuing a sharp but steady downward trend since 2005. Freshwater withdrawals were also 9 percent less than in 2015.
••• WATER USE HOME • TOTAL WATER USE • SURFACE WATER USE • GROUNDWATER USE • TRENDS •••
Public Supply • Domestic • Irrigation • Thermoelectric Power • Industrial • Mining • Livestock • Aquaculture
Water Use Trends, 1950-2015
(source: Dieter, C.A., Maupin, M.A., Caldwell, R.R., Harris, M.A., Ivahnenko, T.I., Lovelace, J.K., Barber, N.L., and Linsey, K.S., 2018, Estimated use of water in the United States in 2015: U.S. Geological Survey Circular 1441, 65 p., https://doi.org/10.3133/cir1441.)
Sources/Usage: Public Domain.The drop in total withdrawals in 2015 was primarily caused by signicant decreases in withdrawals for thermoelectric power (28.8 Bgal/d), which accounted for 89 percent of the decrease in total withdrawals. The decrease in public-supply withdrawals accounted for another 9 percent of the decline in total withdrawals. Categories of use with larger withdrawals in 2015 than in 2010 were irrigation and mining. The increase in irrigation withdrawals was only about 2 percent greater than 2010 levels, partly resulting from updated 2010 data, and mining withdrawals were corrected downward for 2010.
Sources/Usage: Public Domain. - Science
Below are other water-use topics.
Water Use in the United States
The USGS produces national estimates of water withdrawal and consumptive water use. Withdrawal estimates are currently being finalized for a 20-year period from 2000 to 2020 for the three largest water use categories nationally (public supply, self-supplied thermoelectric power, and self-supplied crop irrigation). Six additional categories of use (self-supplied industrial, domestic, mining...Total Water Use
The USGS has estimated water use for the United States every 5 years since 1950. Estimates are provided for groundwater and surface-water sources, for fresh and saline water quality, and by sector or category of use. Estimates have been made at the State level since 1950, and at the county level since 1985. Water-use estimates by watershed were made from 1950 through 1995, first at the water...Surface-Water Use
Surface-water sources include streams and rivers, lakes and reservoirs, and oceans. For the purposes of the USGS water-use reports, surface water with less than 1,000 milligrams per liter (mg/L) of dissolved solids is considered freshwater, and the remainder is considered saline.Surface-water resources are often evaluated by watershed. The most recent USGS water-use estimates by watershed are in...Groundwater Use
Groundwater refers to all subsurface water, specifically that part of groundwater which is in the saturated zone. Groundwater sources are called aquifers: geologic formations that contain sufficient saturated permeable material to yield significant quantities of water to wells and springs. For the purposes of the USGS water-use reports, groundwater with less than 1,000 milligrams per liter (mg/L)...Water-Use Terminology
The following terms have been used in one or more of the water-use publications. The comparison of water-use categories over the history of these reports may also help clarify the use of some of the terms.