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Water-Year Summary for Site 453027122400000

! This page will be decommissioned in early 2026. Modernized Water Year Summary Reports are available in WDFN. Learn more about our modernization plans and timeline.
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.)  
32315 Relative fChl, water, in situ(Max.,Min.,Mean)  
32316 fChl, water, in situ(Max.,Min.,Mean)  
32319 fPC, water, in situ(Max.,Min.,Mean)  
32321 Relative fPC, water, in situ(Max.,Min.,Mean)  

Water year 2025: 2024-10-01 to 2025-09-30
 
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USGS Water-Year Summary 2025
453027122400000 WILLAMETTE RIVER BLW HOLGATE CHANNEL, PORTLAND, OR