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- Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
- For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
- For water years 2006 through 2013, choose a water year and an Annual Water Data Report will be provided.
- For water years 2005 and earlier, Annual Water Data Reports may be available in digital format.
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USGS Water-Year Summary 2024
14202630 WAPATO CANAL AT PUMP HOUSE, AT GASTON, OR
LOCATION - Lat 45°26'24.62", long 123°07'30.65" referenced to North American Datum of 1983, Washington County, OR, Hydrologic Unit 17090010, and on left bank 60 ft upstream from pump house.
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 2011 to current year (gage heights only).
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 160.51 ft above NAVD of 1988 (levels by U.S. Fish and Wildlife Service). Prior to Oct. 1, 2014, datum of gage was incorrectly reported as 171.37 ft above NAVD of 1988.
REMARKS - Flow generally affected by pump operations 60 ft downstream. Flow subject to backwater from Tualatin River.
EXTREMES FOR PERIOD OF RECORD - Maximum daily gage height, 10.67 ft Feb. 27, 28, 2017; minimum daily gage height, 0.43 ft Oct 30, 2021.
