1-8 The American Water Works Association estimates that 15% of the water that utilities process is lost each day. Assuming that the loss was from Public Supply Withdrawal in 2000 (Problem 1-2), estimate the total value of the lost water if delivered water costs $0.45 per cubic meter.
Reservoir and Streamflow Routing
In hydrology, a reservoir is usually a natural pond that is enlarged or made using a dam to keep the water clean. Reservoirs or dams can be constructed in several ways, including controlling the existing watercourse, disrupting the watercourse to form embayment within it, by digging or building any number of retaining walls.
Water Resource Systems Analysis
Water resources are natural water sources that may be as useful as water sources. 97% of the world's water is saltwater and only 3% is pure water; just over two-thirds of this ice sheet is located in glaciers. The remaining pure frozen water is found primarily as groundwater, with only a small fraction present above the ground or in the air. Natural sources of freshwater include surface water, under river flow, groundwater, and ice water. Artificial water sources can include treated wastewater (recycled water) and saline seawater.
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1-9
The American Water Works Association estimates that 15% of the water that utilities process is lost each
day. Assuming that the loss was from Public Supply Withdrawal in 2000 (Problem 1-2), estimate the total
value of the lost water if delivered water costs $0.45 per cubic meter.
Water delivered from a public supply in western Michigan costs $0.45 per cubic meter. A 0.5 L bottle of
water purchased from a dispensing machine costs $1.00. What is the cost of the bottled water on a per
cubic meter basis?
Answer: $2000 m"
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Estimate the per capita daily water withdrawal for public supply in the United States in 2005 (in Lpcd). Use
the following population data (McGeveran, 2002) and water supply data (Hutson et al., 2001):
Year
1950
1960
1970
1980
1990
2000
Population
151,325,798
179,323,175
203,302,031
226,542,203
248,709,873
281,421,906
Public Supply Withdrawal, m³ · d−¹
5.30 × 107
7.95 × 107
1.02 × 108
1.29 × 108
1.46 × 108
1.64 x 108
(Note: This problem may be worked by hand calculation and then plotting on graph paper to extrapolate
to 2005 or, it may be worked using a spreadsheet to perform the calculations, plot the graph, and extrapo-
late to 2005.)"
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