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Joseph P Nielsen

Joseph Nielsen is currently acting as the Director of the Observing Systems Division (OSD) for the USGS Water Resources Mission Area.

Joe is currently acting as director of the Observing Systems Division (OSD) within the USGS Water Resources Mission Area. In this role he leads a broad team to develop and support innovative and trusted methods for data collection to assess water availability, including quantity and quality, to meet the water management and prediction needs of the Nation. 

Joe also serves as the Delaware River Master, administering the provisions of the 1954 Supreme Court that established the position, relating to yields, diversions, and releases; conserving the waters of the river; compiling data on the water needs of the parties; checking and correlating streamflow measurements and records; observing, recording, and studying the effect of developments in the watershed on water supply and other uses; and making periodic reports to the Court. 

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