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Explore the NEWUSGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.
Water Quality Samples for Arizona
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Welcome to the NWIS-Web for the Arizona Water
Science Center
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
the USGS.
Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data
starting March 11, 2024
with a full decommission expected 6 months later.
Learn more about the upcoming change and where to find the new samples
data in our blog.