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Show 6050 4053 the United States and the States and the people at large. Q Well, wherein are these improvements inter- related? A Each reservoir in the headwater region, for example, will benefit every power site down below. Q In what way? A By equalizing, or tending to equalize, the flow of the stream. The Colorado, for instance, would vary from less than 2000 cubic feet per second to 200,000 or 300,000 in the course of a year. Those streams will be brought to a common mean of 15,000 or 20,000 second- feet by means of reservoirs. That makes it possible to develop a much larger horsepower during the low. water season than would otherwise be possible. The demand for power being more or less even throughout the seasons, that equation of flow is also beneficial to power development. Q How does an equalization of flow help irrigation? A It may help, or it may hurt, irrigation. For irri-gation in a region such as the lower portion of the Colorado River, or the Imperial Valley, where they irrigate twelve months in the year, they, like power, need almost a uniform flow. The other regions, the irrigation season might be confined to two or three months in the summer, and if that |