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19 0034 12 percent were irrigated exclusively from surface water; 53,800 acres or 71 percent were irrigated from surface and ground water supplies; and the remaining 12,900 acres or 17 percent were irri- gated exclusively from ground water. The total area is under ditch. An inventory made in 1958 showed 470 irrigation wells in the area. The rapid expansion of irrigation pumping in recent years may have exceeded the recharge capacity of the aquifer resulting in "mining" of water. A comprehensive ground water survey being conducted cooperatively by the State of Kansas and the U.S.G.S. should answer that question. The yield of the potential Syracuse Reservoir, or alternate Hartland Reservoir, can be used to supplement the present irrigation water supply. Exchanges can be arranged to benefit the area upstream from the reservoir. The lower canals can be served directly by reser- voir releases. The ground water study may show methods by which supplemental surface water can be applied to the higher lands in such a pattern as to make return flows available to recharge the aquifer underlying the lower lands. This would permit optimum utilization of both surface and ground waters. Ingalls area An upland area lying north of the Arkansas River comprises about 200,000 acres situated in northeastern Gr~ County and extending into adjacent Hodgeman, Finney and Ford Counties. Topography of the area is generally smooth. The surface soils are deep and fertile, of loessial origin, and underlain with the Ogallala formation of consid- erable depth. Representa.tive borings indicate that a large portion of the area might qualify as Class 1 and 2 arable lands.