1. Effects on Dissolved Oxygen during Generation at Center Hill Dam Jared Durrett Undergraduate Biology Department Tennessee Technological University Cookeville, TN 38505

2. Introduction TWRA (2003) tested for D.O. and its effect on aquatic species. D.O. was not at the levels it needed to be regardless of methods that were in place.

3. Objective and Hypothesis To determine the dissolved oxygen count of Center Hill Lake/ Caney Fork River before, during, and after generation That the dam will not have enough D.O. to support aquatic life.

4. Methods and Materials “Standard Methods” 4500-0 Dissolved Oxygen Content Method Bench HI 2400 D.O. Meter Surveying potential sites for sampling to take place A Dell Dimension 3000 to compile data using Excel

6. Results The D.O. below the dam was low, but as it flowed away became enriched with oxygen again.

7. Discussion Awareness USACE TVA TWRA

8. Summary D.O. is important –Fish –Invertebrates –Botanicals –Algae –Etc...

9. Summary Measures have been in place to help: Not enough Technological advances may be in order Reconsider Dam construction

10. Conclusion Efforts must be made Look at generation times (later Summer/early Fall) Better Management of life TVA/USACE Participation

11. Work Cited Fiss, Frank C., Young, David W. 2003. Management Plan for the Center Hill Trout Fishery 2004-2009. TVA, 2004. Tailwater Improvements: Boosting Oxygen Levels. http://www.tva.gov/environment/water/rri_oxy.htm. Jan.26 05.

12. Any Questions?