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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 the Nation
Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data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.
USGS 420347092541601 084N18W26AAA 1996NAWQA City of Marshalltown