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Estimated Use of Water in the United States, 1955 - Usgs Circular 398 (Paperback)
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Estimated Use of Water in the United States, 1955 - Usgs Circular 398 (Paperback)
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Loot Price R402
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The estimated withdrawal use of water in the United States during
1955 was about 740,000 mgd (million gallons per day). Withdrawal
use of water requires that it be removed from the ground or
diverted from a stream or lake. In this report it is divided into
five types: public supplies, rural, irrigation, self-supplied
industrial, and waterpower. Consumptive use of water is the
quantity discharged to the atmosphere or incorporated in the
products of the process in which it was used. Only a small part of
the water withdrawn for industry was consumed, but as much as 60
percent of the water withdrawn for irrigation may have been
consumed. Of the water withdrawn in 1955 about 1,500,000 mgd was
for generation of waterpower, and all other withdrawal uses
amounted to only about 240,000 mgd. Surface-water sources supplied
194,000 mgd and groundwater sources supplied 46,000 mgd. The amount
of water withdrawn in each State and in each of 19 geographic
regions is given. The quantity of water used without being
withdrawn for such purposes as navigation, recreation, and
conservation of fish and wildlife was not determined. The water
surface area of the reservoirs and lakes used to store water for
these purposes is sufficiently large that the evaporation from this
source is greater than the quantity of water withdrawn for rural
and public supplies. The amount of water used for generation of
waterpower has increased 36 percent since 1950. The largest
increase, 43 percent, was in self-supplied industrial water. Rural
use, excluding irrigation, decreased 31 percent. The upper limit of
our water supply is the average annual runoff, nearly 1,200, 000
mgd. The supply is depleted by the quantity of water consumed
rather than by the quantity withdrawn. In 1955 about one-fourth of
the water withdrawn was consumed. The amount thus consumed is about
one-twentieth of the supply.
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