USGS Washington Water Science Center USGS Home Page

This is your direct link to all kinds of water resource information. Here you'll find information on Washington's rivers and streams. You'll also find information about ground water, water quality, and many other topics. The USGS operates the most extensive satellite network of stream-gaging stations in the state, many of which form the backbone of flood-warning systems.

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Latest River Conditions:
Statewide Streamflow Table
Real-Time Map - Google Maps

Annual Data Reports:
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Water Science in the News

Geology + Wells + Pumping = Drops in Water Levels in Columbia Plateau
Geologic barriers, the intermixing of water between aquifers through wells, and groundwater pumping contribute to the pattern of declines of groundwater levels of the Columbia Plateau....

New Tool Guides Chamokane Water Plans
Water management in the Chamokane Creek Basin can now be guided by a new computer model to run "what-if" simulations to evaluate the potential effects of groundwater withdrawals on streamflows in the basin....

Estimates of Low Summer Flows Help Fish, Habitat
Low summer streamflows during the driest years--particularly in streams without flow gages--can be estimated using relatively inexpensive methods....

USGS Podcast: Streamgages