Irrigation
and Water
Irrigation
makes agriculture possible in areas that were previously not suitable for crop
production. Less than 15%
of U.S. cropland is
irrigated, although irrigation is essential for crop production in some of the
most productive areas of the country such as Illinois . In Illinois , home to some of the highest corn
yields in the country (152 bushel per acre average for the state), much of the
crops are under constant irrigation from the time they are planted until they
are harvested.
The
Department of Water Management is responsible for delivering almost 1 billion
gallons of water to Chicago
and 125 suburban communities each day through a network of purification plants,
tunnels, pumping stations, water mains and many other structures. Raw water
enters the crib about 2-miles out in the lake and is sent to one of two
purification plants where the water is treated and impurities are removed. The
water then flows to 12 pumping stations located throughout the city of Chicago and ultimately
delivered to homes and business.
References
http://www.cityofchicago.org/ city/en/depts/water.html
http://www.epa.gov/ agriculture/ag101/ cropirrigation.html
The Chicago Water Tower is the
second-oldest water tower in the
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