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<br />. <br />< <br />. <br />> <br />. <br />o <br />'''''' <br />. <br />. <br />< <br />. <br />. <br />> <br />1lao <br />> <br />< <br />o <br />. <br />. <br />. <br />< <br />" <br />;: <br />< <br />U <br />. <br />. <br />. <br />. <br />Z <br />o <br />. <br />~ 1'2.0 <br />. <br /> <br />.. <br />11UI <br /> <br />,.. <br /> <br /> <br />-" <br /> <br />, <br /> <br />'00 <br /> <br />-- <br />..~...f'.!... ...... <br />~..M'. <br /> <br />p ~!:.o <br /> <br />/ / <br />// ",.if' \."'- <br />#,/ <br /> <br />I"to <br /> <br />I'"~ <br /> <br />Plate 1. Per Capita Requirements of Water for Cities. <br /> <br />,~ 1M' <br />YEARS <br /> <br />.!ltO <br /> <br />,., <br /> <br />ulation of OUf cities a considerable quantity of water <br />is required by sanitary facilities in order to preserve <br />health. Water is also necessary in such areas in <br />order to control the fire hazard. History records the <br />fate of many cities and even civilizations that did <br />not survive and lost the battle to the ravages of <br />epidemics and fire which sanitation and fire pro- <br />tection, made possible by an adequate water supply, <br />could have conholled. <br />In contrast to the way in which a municipal supply <br />must be operated, an irrigation supply is most eco~ <br />nomically operated at or near the peak of its avai1~ <br />able water supply. In agriculture, more pwfit can be <br />realized in the long run by utilizing most of the water <br /> <br />22 <br /> <br />" <br /> <br /> , ~ <br /> :~, <br /> , <br /> , - <br /> ,~- <br />0 <br />. <br />> <br />. <br />. <br />. <br />z <br />0 <br />" <br />< <br />. <br />, <br />. .0_ <br />. <br />. <br /> ".'. <br /> -- <br /> , O~ <br /> ;1 <br /> ":.-".! <br /> <br /> <br /> <br />UIIO <br /> <br />.... <br /> <br />I." <br /> <br />I'''' <br /> <br />,... <br /> <br />1.'5!:l <br /> <br />"Ie <br /> <br />,.- <br /> <br />YE:'ARS <br /> <br />,- <br /> <br />Plate 2. Population Served with Domestic Water. <br /> <br />available each year, rather than by holding crop area <br />to that which could be supplied with water dudng a <br />year of minimum water supply. <br /> <br />The objective in controlling storage for a mu. <br />nicipal water supply is to always have water avail- <br />able. The objective in controlling storage for ag- <br />ricultural purposes is to utilize all available water <br />in producing crops. The objective in flood control <br />is to have as much storage volume available as <br />possible. <br /> <br />As a result of these interests, which are often <br />conflicting, water storage supplies which jointly <br />serve both agriculture and municipalities must be <br />operated to the interest of both, and cannot be operat- <br />ed solely in the interest of one party to the exclusion <br />of the interest of the other. <br /> <br />::j <br />/1 <br /> <br />-:;~~;i <br />~~1 <br /> <br />: ,'"I":." ,.:- <br />v,.~....",J <br />