Wilbur C. Ballance William Thordarson 1976 <p>During May 1974, the U.S. Geological Survey collected water samples from Amchitka Island, Alaska. Tritium determinations were made on 99 water samples, and dissolved gross alpha and gross beta/gamma determinations were made on 34 water samples, No appreciable differences were found between the data obtained in May 1974 and the data obtained before the Cannikin nuclear explosion.</p> application/pdf 10.3133/70156988 en U.S. Geological Survey Radiochemical monitoring of water after the Cannikin event, Amchitka Island, Alaska, May 1974 reports