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November 13, 2019 - The USGS is currently experiencing a delay in the processing of timeseries data. National administrators are investigating the issue and hope to restore normal data delivery as soon as possible. We will post an updated message when the problem has been resolved.
Welcome to the NWIS-Web for the Arizona Water
The majority of USGS Gaging Stations are funded though a cooperative
program between the USGS other interested agencies.
Follow this link for information on the Cooperative Water Program with