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DART Queries are Temporarily Unavailable Performing backups, up by 04:00 US/Pacific.
Message Time: April 26 2025 00:55:02.

DART Hourly Water Quality Graphics

Data Courtesy of U.S. Army Corps of Engineers, NWD and Grant County PUD, U.S. Geological Survey Water Data, U.S. Bureau of Reclamation Columbia-Pacific Northwest Region Hydromet

Hourly Water Quality Queries

Graphics Hourly Data

Select Year, Site, River Parameter

The year following the site indicates earliest data available.

Set Date and Hours

mm/dd
Query Notes