Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information please see www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Water-Year Summary for Site 421401121480900

Click to hide Water-Year Summary instructions and information
  • 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.
Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00095 Specific cond at 25C(Max.,Min.,Mean)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  

Water year 2025: 2025-10-01 to 2026-09-30
 
Print this page
USGS Water-Year Summary 2025
421401121480900 UPPER KLAMATH LAKE AT LINK RIVER DAM, AT KLAMATH FALLS, OR
LOCATION - Lat 42°14'01", long 121°48'09" referenced to North American Datum of 1983, Klamath County, OR, Hydrologic Unit 18010203, near right end of Link River Dam.
WATER-QUALITY RECORDS
PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: June 2001 to current year.

pH: June 2001 to current year.

WATER TEMPERATURE: June 2001 to current year.

DISSOLVED OXYGEN: June 2001 to current year.

COOPERATION - Data prior to Mar. 5, 2013 computed from data furnished by U.S. Bureau of Reclamation.
INSTRUMENTATION - Water-quality monitor.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 157 microsiemens June 28, 2013; minimum, 94 microsiemens Jan. 3, 14-20, Feb. 24-26, 2002, Mar. 23, 2017.

pH: Maximum, 10.6 units June 22, 2013, July 23, 25-28, 2023; minimum, 7.0 units Feb. 25, 26, 2008.

WATER TEMPERATURE: Maximum, 28.1°C July 29, 2022; minimum, -0.1°C Dec. 30, 2010.

DISSOLVED OXYGEN: Maximum, 18.0 mg/L July 8, 2012; minimum, 0.6 mg/L Aug. 7, 2022.