USGS 12013500 WILLAPA RIVER NEAR WILLAPA, WA

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DESCRIPTION:: Latitude 46°39'04", Longitude 123°39'05" NAD27; Pacific County, Washington, Hydrologic Unit 17100106; Drainage area: 130 square miles; Datum of gage: 6.92 feet above NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations (availability statement)	1987-10-01	2025-09-27
Daily Data
Discharge, cubic feet per second	1947-08-26	2025-09-26	25904
Daily Statistics
Discharge, cubic feet per second	1947-08-26	2025-04-20	25745
Monthly Statistics
Discharge, cubic feet per second	1947-08	2025-04
Annual Statistics
Discharge, cubic feet per second	1947	2025
Peak streamflow	1949-02-22	2023-12-05	73
Field measurements	1947-08-26	2025-08-11	495
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1908-09-05	1986-08-28	198
Water-Year Summary	2006	2024	19
Revisions	Loading...

OPERATION:: Record for this site is maintained by the USGS Washington Water Science Center; Email questions about this site to Washington Water Science Center Water-Data Inquiries

U.S. Department of the Interior | U.S. Geological Survey
Title: NWIS Site Information for USA: Site Inventory
URL: https://waterdata.usgs.gov/nwis/inventory?

Page Contact Information: Washington Water Data Support Team
Page Last Modified: 2025-09-27 21:21:19 EDT
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