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Scientific Investigations Report 2013–5135


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Prepared in cooperation with the Bureau of Reclamation


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


By Annett B. Sullivan1, I. Ertugrul Sogutlugil2, Stewart A. Rounds1, and Michael L. Deas2


Tables

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. 


Table 2. Summary of model scenarios for the Link-Keno Reach, Klamath River, Oregon. 


Table 3. Number of days dissolved oxygen was simulated to be less than the 30-day criteria (and the average amount less than the criteria) at selected Oregon Department of Environmental Quality compliance locations for scenario 3 under the base case and Total Maximum Daily Load scenarios, Klamath River, Oregon, for years 2006–09.


Table 4. Number of days pH was simulated to be greater than the 9.0 criteria (and the average amount greater than the criteria) at selected Oregon Department of Environmental Quality compliance locations for scenario 3 under the base case and Total Maximum Daily Load scenarios, Klamath River, Oregon, for years 2006–09.


Table 5. Number of days acute ammonia toxicity was greater than the criteria (and average amount greater than the criteria) at selected Oregon Department of Environmental Quality compliance locations for scenario 3 under the base case and Total Maximum Daily Load scenarios, Klamath River, Oregon, for years 2006–09.


Table 6. Number of days chronic ammonia toxicity was greater than criteria (and average amount greater than the criteria) at selected Oregon Department of Environmental Quality compliance locations for scenario 3 under the base case and Total Maximum Daily Load scenarios, Klamath River, Oregon, for years 2006–09.


Table 7. Annual particulate organic material and algae load decreases for scenario 6, Link-Keno reach of the Klamath River, Oregon, 2006–09.


Table 8. Particulate organic material and algae load decreases (June 15–October 31) for scenario 6, Link‑Keno reach of the Klamath River, Oregon, 2006–09.


Table 9. Wetland representations for scenario 7 simulations, Klamath River, Oregon.


Table 10. Wetland calculator results (required wetland area and removal rates) for model segments 28 and 54 of the Link‑Keno reach for influent maximum, average, and minimum biochemical oxygen demand and total suspended solids per 100 cubic feet per second of flow diverted to a wetland in the Link-Keno reach of the Klamath River, Oregon.


Table 11. Specified decreases in modeled return flow due to removals of biochemical oxygen demand, total suspended sediment, total nitrogen, and total phosphorus through treatment wetlands for scenario 7 in the Link-Keno reach of the Klamath River, Oregon.


Table 12. Flow rates used in scenario 8, Klamath River, Oregon.


Table 13. Annual average change in air temperature between 2006–09 and 2057–60 from five Global Circulation Models for the Klamath River basin, Oregon.


Table 14. Final parameter estimates of the non-linear regression model for major inputs at selected sites in the Link-Keno reach of the Klamath River, Oregon, 2006–09.


1U.S. Geologial Survey

2Watercourse Engineering, Inc.

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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