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<br /> <br />:" ~ ,t, ,..t..> <br /> <br />ALTERNATE USES OF WATER <br />l)O;j~Z3 Durirtg periods of extreme drought, the numerous <br /> <br />'. <br /> <br />functional uses of water are in competition for <br /> <br />the limited supplies. In addition to water for hydro- <br /> <br />electric power generation, water may be required for <br /> <br />municipal and industrial purposes, irrigation, cooling <br /> <br />of thermal power plants, navigation, and maintenance of <br /> <br />streamflow~ for water quality, fish and wildlife, and <br />esthetic purposes. Publicly-owned multiple-purpose <br />water resource facilities will be operated on a day-to- <br />day basis to meet the region's most critical needs. <br /> <br />Operations ~hat are different from normal may, or may not, <br /> <br />be beneficial to hydroelectric power generation. As reservoirs <br /> <br />are drawn dbwn, the head is reduoed with a consequent reduction <br /> <br />in power production. Areas that normally use gravity-fed <br /> <br /> <br />surface wat$r supplies for irrigation may resort to pumping <br /> <br />of groundwater with a consequent increase in energy loads. <br /> <br />Water needs ;for hydroelectric energy production may not be <br /> <br />given very high priority if they are in conflict with other <br /> <br />needs such as potable water supplies, irrigation, etc. The <br /> <br />assumption m?y be made that electric energy can be obtained <br /> <br /> <br />from other sources whereas the sources of water for more <br /> <br />direct human needs are relatively limited. It is probable <br /> <br />that water management for other functions could adversely <br /> <br /> <br />impact on electric energy production in the Pacific Northwest. <br /> <br />49 <br /> <br />.<;,. ..<c ".~.. ~'" <br /> <br />;~j;j'",~~,~j <br /> <br />~ '" ' ~ , <br /> <br />~I~{0ifi:~ <br />,~~... <br /> <br />