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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.
- Not all sites have reports available for every water year.
USGS Water-Year Summary 2024
12321500 BOUNDARY CREEK NEAR PORTHILL, ID
LOCATION - Lat 48°59'50", long 116°34'09" referenced to North American Datum of 1983, in sec.11, T.65 N., R.2 W., Boundary County, ID, Hydrologic Unit 17010104, Smith Falls quad., on left bank near mouth of canyon, 0.2 mi south of international boundary, 3 mi west of Porthill, and at mile 3.5.
DRAINAGE AREA - 97 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - May 1928 to current year (no winter records 1929, 1930).
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 4080 ft³/s May 22, 2013 (from rating curve extended above 3,000 ft³/s), gage height, 15.28 ft, current datum; minimum daily discharge, 3.8 ft³/s Sept. 28-30, 2024, due to upstream diversion.
