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  • Due to a lapse in government funding, this website will not be updated except to provide important public safety information. For more information please visit: www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

USGS Water-Quality Daily Data for the Nation

! This page is undergoing modernization and will be decommissioned in the future.
Daily data are now available in WDFN and will be integrated in other pages soon. Learn more about decommission of NWISWeb.
! Discrete water samples data are undergoing modernization with this page no longer being updated with the latest data starting March 11, 2024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.

Choose Site Selection Criteria
Choose from the following criteria to constrain the number of sites selected.   If no additional site-selection criteria are chosen and no additional specifications are defined on the following page then output will be for all 16,115 sites that have water-quality daily values data.

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          Site
   -- Attribute --

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          Data
   -- Attribute * --

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* Selection of more than one data attribute will include all samples that meet all conditions selected.