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Public supply, 11%
Domestic, 1%
Water tower, DeKalb County, GA
Kitchen faucet
Irrigation, 31%
Livestock, less than 1%
Microirrigation in an orchard, CA
Dairy cows, central Maryland
Aquaculture, 2%
Industrial, 4%
Catfish ready for harvest
Chemical manufacturing plant
Mining, 1%
�ermoelectric power, 49%
Dragline bucket in kaolin mine, Wilkinson County, GA
Base of cooling tower, Bartow County, GA
FIGURE 1.5
Water use in the United States. (From Hutson, S.S., Barber, N.L., Kenny, J.F., Linsey, K.S.,
Lumia, D.S., and Maupin, M.A., USGS Circular 1268, U.S. Geological Survey, Washington, DC, 2000.)
The changes in water management and water use have resulted from (Hirsch 2006):
•
Market forces—energy costs and agricultural prices
•
Demographics
•
Public values (ecosystem services)
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