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A study of the groundwater conditions at Cordova, Alaska, to determine the availability of supplies from previously unexplored groundwater sources was made in September and October 1961 by the U.S. Geological Survey, in cooperation with the Alaska Department of Health and Welfare and the Cordova Public Utilities. During the investigation two test wells were drilled in a glaciated valley between Eyak Lake and Orca Inlet. One test well entered consolidated bedrock at a depth of about 120 feet, the other was drilled to a depth of 142 feet and penetrated only unconsolidated materials. Test well 1 produced only a small amount of water when pumped; however, the low yield of this test well may have been due to improper screen-slot size rather than to the nature of the aquifer. Test well 2 was pumped at a rate of 130 gpm (gallons per minute), with only a moderate amount of drawdown. Water samples for chemical analyses were collected from both test wells and from Eyak Lake. The results of these analyses indicate that the ground water is of good chemical quality and there is little likelihood of sea water being drawn into wells after prolonged pumping. Attention should be given to the problem of chloride content of water from aquifers at depths greater than the depth of the deeper test well.