TO PUMP ITS OWN WATER.
To make the Kings river of central California pump its own water is the interesting plan presented by J. B. Lippincott, resident hydrographer of the United States Geological Survey, who has recently investigated the possibility of an increased use of that stream for irrigation and other purposes.
The Kings river valley is one of the richest irrigation sections of the West. Nearly 400,000 acres are already under cultivation and utilise almost all the available flow of the river, but fertile lands remain for which there is not a sufficient water supply; this is especially true of the lands on the adjacent foothills of the Sierra Nevada. Mr. Liopincott in his report recently issued in the series of Water Supply and Irrigation papers (No. 58) of the Geological Survey, shows that the construction of reservoirs for the impounding of flood waters on the tributaries would be of value, and he also suggests a unique plan for the full conservation of the river’s water. In the flat lands of the lower valley, commonly known as the delta, the sands and gravels of the soil have become thoroughly _ saturated through twenty or thirty years of irrigation, so that an abundance of water can he obtained from wells sunk into them. It is estimated that over 300,000 acre-feet could be had from this source annually, or sufficient water to flood 300.000 acres to the depth of one foot each year. In close proximity to this supply stand the steen slopes of the Sierras, among whose summits the Kings river has its rise. On the upper course of the river, where the waterpower possibilities are the best, it is proposed to erect a power plant of 1,800-horsenower to generate 2,200 volts of electricity, transmit it at high tension fortyfive miles to the iower valley, harness it to numerous pumping stations located in different parts of the delta, and so make the river pump up its own water which has been once used in irrigation, rendering it a second time available for the reclamation of new lands. It is estimated that if all the water derived from the pumping plants and the proposed storage reservoirs should be put upon new areas it would mean the addition of 200,000 acres of valuable land to the State.