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Oregon Water Science Center

Provisional Real-Time Discharge and Water Quality Data

Streamflow and water-quality data from real-time gages and water-quality monitors are relayed to the Oregon Water Science Center in Portland through a satellite- and telephone-based telemetry and data collection system. Data are transmitted from each station at least once and typically several times per day.

Real-time water-quality data provided from this USGS Oregon Water Science Center website are "provisional" and have not been reviewed or edited. These data may be subject to significant change and are not citeable until reviewed and approved by the U.S. Geological Survey. Real-time data may be changed after review for one or more of the following reasons:

Data are reviewed periodically to ensure accuracy. Each station record is considered provisional until the data are reviewed, finalized, and approved for release. The data are usually reviewed and finalized within 6 months of the end of the water year.

Data users are cautioned to consider carefully the provisional nature of this information before using it for decisions that concern personal or public safety or the conduct of business that involves substantial monetary or operational consequences.

Information concerning the accuracy and appropriate uses of these data or information concerning other hydrologic data may be obtained from:

Public Information Officer
U.S. Geological Survey
Oregon Water Science Center
2130 SW 5th Avenue
Portland, OR 97201
(503) 251-3200
email: <>


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