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Scientific Investigations Report 2013–5135


Modeling the Water-Quality Effects of Changes to the Klamath River Upstream of Keno Dam, Oregon


Table 1. Total phosphorus and total nitrogen loads for upstream inflow, point, and nonpoint sources in the 
Link-Keno reach base case model, Klamath River, Oregon, 2006–09. 


Site name Site type Total phosphorus (metric tons per calendar year)
2006 2007 2008 2009
Link River Upstream inflow 188 128 128 114
Klamath Falls wastewater treatment plant Point source 13 11 11 8
South Suburban wastewater treatment plant Point source 11 10 9 8
Lost River Diversion Channel Nonpoint source 66 17 19 10
Columbia Forest Products Point source 0.003 0.001 0.000 0.000
Klamath Straits Drain Nonpoint source 76 31 32 30
Site name Site type Total nitrogen (metric tons per calendar year)
2006 2007 2008 2009
Link River Upstream inflow 2,488 1,819 1,948 1,746
Klamath Falls wastewater treatment plant Point source 65 54 53 49
South Suburban wastewater treatment plant Point source 43 39 36 33
Lost River Diversion Channel Nonpoint source 617 142 158 70
Columbia Forest Products Point source 0.038 0.009 0.003 0.001
Klamath Straits Drain Nonpoint source 506 285 319 278

First posted July 24, 2013

For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Avenue
Portland, Oregon 97201
http://or.water.usgs.gov

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