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<br />quantities of water used by persons relying on rural water districts, <br />or individual wells, or cisterns. Based on this procedure, rural farm <br />and rural nonfarm water use was 54,000 acre-feet during 1965. It <br />should be noted that rural nonfarm water use is included in the urban <br />category in the water forecasts. <br /> <br />The amount of water used for 1 ivestock watering was determined from <br />the quantity of water needed to produce a dollar of output in the <br />I ivestock industry. An analysis of data from the livestock industry <br />indicates the following unit quantities of water are required to <br />produce a dollar of output: beef cattle, 43.2 gallons; hogs, 12.0 <br />gallons; and dairy cattle, 33.8 gallons. On the basis of these <br />figures, 91,900 acre-feet of water were used for 1 ivestock watering <br />during 1965. <br /> <br />Industrial <br /> <br />Industrial water requirements as defined in this study include all water <br />withdrawn in mining, electric power generation, and manufacturing. In <br />order to gather the information needed to determine the character and <br />extent of industrial water use in the state, questionnaires were sent <br />to most manufacturers and electric power producers operating in the <br />state. Information concerning water use for mining was taken from <br />some of the returned questionnaires and from material published by <br />others. <br /> <br />Review and analyses of the information obtained from the returned <br />questionnaires provided the basis for making estimates of the amount <br />of water used for industrial purposes and for determining the amount <br />of water used annually per dollar of output in the industrial sector. <br />These figures were then used to make estimates of future industrial <br />water requirements. <br /> <br />The most important manufacturing groups from the water uSe and economic <br />standpoints are food and kindred products; chemicals and al lied <br />products; stone, clay, glass, and concrete products; petroleum refining <br />and related industries; machinery; and transportation equipment. The <br />amount of water withdrawn for use by manufacturers during 1965 was over <br />151,500 acre-feet of water. <br /> <br />The amount of water used in the manufacturing sector during 1965 <br />amounted to only about a third of that which was withdrawn for electric <br />power generation. In fact, the electric power generation industry used <br />almost as much water in 1965 as was used for municipal, industrial, <br />and rural domestic purposes combined. Nearly 461,700 acre-feet were <br />withdrawn for electric power generation. <br /> <br />An estimate of the amount of water used in the mining sector was taken <br />from reports by the U.S.' Bureau of Hines, Kansas Geological Survey, and <br />from the Kansas Wate.- Resources Board's questionnaires. These sources <br />indicate that over 67,600 acre-feet of water were used by the <br />mining industry in Kansas in 1965. The manufacturing, electric power <br />generation, and mining sectors used a total of 680,800 acre-feet of <br />water during 1965. <br /> <br />22. <br />