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Partner Logo        May 1, 2023        Graphic element for the 50th anniversary celebration of USGS Earth Resources Observation and Science (EROS) Center

Technical Memos        April 7, 1997        TM97-04 Tritium/helium dating of ground-water samples available through contract with Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York

Partner Logo        June 6, 2023        GeoSTAC Logo

Technical Memos        July 20, 2021        NMFS Biological Opinion

Technical Memos        July 20, 2021        NMFS Incidental Harassment Authorization

Technical Memos        October 8, 1998        TM99-01 Change in reporting unit for relative abundances of helium isotopes

Technical Memos        July 20, 2021        USFWS Incidental Harassment Authorization

Technical Memos        December 13, 2018        NCCWSC 2009 National Workshop Summary

Technical Memos        July 20, 2021        Final Environmental Assessment

Technical Memos        April 7, 1997        TM97-04S Collection, processing, and analysis of ground-water samples for tritium/helium-3 dating;