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Water-Year Summary for Site 422305121553803

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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.
Available Parameters
00010 Temperature, water(Max.,Min.,Mean)  
00095 Specific cond at 25C(Max.,Mean,Min.)  
00300 Dissolved oxygen(Max.,Min.,Mean)  
00400 pH(Max.,Min.,Med.)  
32321 Relative fPC, water, in situ(Min.,Max.,Mean)  

Water year 2024: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2024
422305121553803 UPPER KLAMATH LAKE (MID-TRENCH, UPPER) NEAR KLAMATH FALLS, OR
LOCATION - Lat 42°23'05.38", long 121°55'38.93" referenced to North American Datum of 1927, Klamath County, OR, Hydrologic Unit 18010203, and about 0.17 mi east of shore.
SURFACE-WATER RECORDS
PERIOD OF RECORD -

SPECIFIC CONDUCTANCE: June 2005 to current year (seasonal records only).

pH: September 2004 to current year (seasonal records only).

WATER TEMPERATURE: September 2004 to current year (seasonal records only).

DISSOLVED OXYGEN: September 2004 to current year (seasonal records only). Prior to October 2015, published as Mid-Trench - Upper - MDTU.

WATER-QUALITY RECORDS
INSTRUMENTATION - Water-quality monitor.
REMARKS - Cyanobacteria data and chemical analyses collected at this location are available via NWISWeb.
EXTREMES FOR PERIOD OF DAILY RECORD -

SPECIFIC CONDUCTANCE: Maximum, 171 microsiemens June 28, 2013; minimum, 94 microsiemens May 22, 23, 2017.

pH: Maximum, 10.6 units June 25, 2007, July 22, 2011, July 4, 13, 2019; minimum, 6.9 units Sept. 3, 2013.

WATER TEMPERATURE: Maximum, 30.0°C July 29, 2022; minimum, 6.5°C Oct. 12, 2008.

DISSOLVED OXYGEN: Maximum, 30.9 mg/L Aug. 3, 2008; minimum, 0.0 mg/L July 21-23, 2008, Aug. 7, 8, 10, 11, 2017, Sept. 5-7, 2019, July 15, 28, 29, 2021.