With water supply issues set to become an important topic of conversation in the near future, this segment from a WPSU documentary Liquid Assets provides a timely introduction to a system (New York’s) as it exists today. Water supply is one of the most important civic services and an important determinant of the quality of life of a community. People all over the world receive their daily supply of water through a variety of different means. Several factors affect the way in which water is supplied to a community.
A regular supply of water is one of the most basic necessities of human life. In fact, ancient societies and cultures developed on the banks of rivers because they sustained life. In the modern world this need is stronger than ever because water is now used for much more than simply drinking, cooking and washing. The supply of water has not kept up with its demand, simply because water bodies have stayed the same, while cities and civilizations have vastly expanded! In such a situation, it is wiser to pull water from other, faraway sources rather than depend upon the local ones. Philadelphia was the first American city to do so in the 19th century and its residents were rewarded with good health, industrial prosperity and Europe’s admiration for its technology. The water system developed by the Philadelphia engineers is used as the basis of most water systems today.
Water supply systems differ from region to region, depending upon the terrain and the reservoirs from which water is drawn. In New York, for instance, 95% of the movement of water is done using gravity and only 5% requires pumping through pipes. On the other hand, carrying water to a town atop a hill will require an entirely different system. Of crucial importance is the resource from which the water is drawn. Water may be drawn from surface water sources, ground water sources or sometimes by desalinating seawater. It is easy to imagine the inconvenience of not having a regular supply of water. But having to supply your own water can also be the cause of dangerous illnesses, because water drawn directly from rivers and lakes may contain contaminants and pollutants that are missing from a clean and treated supply of water.
“Water supply is set to become a bone of contention among communities”. Research the validity of this statement and discuss it with your classmates.
Investigate your local water supply system. How is it similar to and/or different from the supply system discussed in this segment of Liquid Assets?
Academic standards correlations on Teachers' Domain use the Achievement Standards Network (ASN) database of state and national standards, provided to NSDL projects courtesy of JES & Co.
We assign reference terms to each statement within a standards document and to each media resource, and correlations are based upon matches of these terms for a given grade band. If a particular standards document of interest to you is not displayed yet, it most likely has not yet been processed by ASN or by Teachers' Domain. We will be adding social studies and arts correlations over the coming year, and also will be increasing the specificity of alignment.