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https://hdl.handle.net/11681/12344| Title: | Limnological investigations : Lake Koocanusa, Montana. part 1, pre-impoundment study, 1967-1972 |
| Authors: | United States. Army. Corps of Engineers. Seattle District. Bonde, Thomas J. H. Bush, Ronald M. |
| Keywords: | Dams Eutrophication Reservoirs Water pollution Water quality Water Lake Koocanusa, Montana Libby Dam Limnology Nutrient cycle Environmental effects |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 82-21 |
| Description: | Special Report Abstract: This report documents the effects of the construction of Libby Dam upon the water quality of the United States portion of the Kootenai River during the pre-impoundment phase of a long-term water quality study. Water quality problems during dam construction appeared to be restricted to short-term increases in suspended sediment and turbidity which suppressed the aquatic insect population in the river downstream. Abnormally high background concentrations and abrupt chemical changes in water quality during the course of the study were attributed to industrial discharges from a fertilizer plant and mining operation located on an upstream tributary to the river. Nutrient loadings of nitrogen and phosphorus were found to be of sufficient magnitude to predict the development of eutrophic conditions following inpoundment suggesting that efforts in controlling nutrient point sources be continued. NOTE: This file is very large. Allow your browser several minutes to download the file. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/12344 |
| Appears in Collections: | Special Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SR-82-21.pdf | 55.45 MB | Adobe PDF |  View/Open |