Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs 1997
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Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs 1997 %U %U 5%U 4 Environmental Indicators Section Field Operations Division Alabama Department of Environmental Management Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs 1997 March 24, 1999 Environmental Indicators Section Field Operations Division Alabama Department of Environmental Management Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs 1997 Preface This project was funded or partially funded by the Alabama Department of Environmental Management utilizing a Clean Water Act Section 106 provided by the U.S. Environmental Protection Agency - Region 4. Comments or questions related to this report should be addressed to: Alabama Department of Environmental Management Field Operations Division Environmental Indicators Section P.O. Box 301463 Montgomery, AL 36130-1463 TABLE OF CONTENTS LIST OF TABLES ......................................................................................................................................... ii LIST OF FIGURES....................................................................................................................................... iii INTRODUCTION............................................................................................................. 1 MATERIALS AND METHODS ..................................................................................... 5 RESULTS AND DISCUSSION ..................................................................................... 12 I. COOSA RIVER RESERVOIRS.....................................................................................15 Weiss Reservoir............................................................................................................................. 17 Neely Henry Reservoir.................................................................................................................. 21 Logan Martin Reservoir ................................................................................................................ 25 Lay Reservoir ................................................................................................................................ 29 Mitchell Reservoir......................................................................................................................... 33 Jordan Reservoir............................................................................................................................ 37 II. TALLAPOOSA RIVER RESERVOIRS ........................................................................62 Harris Reservoir ............................................................................................................................ 64 Martin Reservoir............................................................................................................................ 68 Yates Reservoir ............................................................................................................................. 72 Thurlow Reservoir......................................................................................................................... 76 LITERATURE CITED .................................................................................................. 92 APPENDIX...................................................................................................................... 93 i LIST OF TABLES Table 1. Reservoirs sampled during the Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs, 1997. ............................................................................. 6 Table 2. Monitoring sites for the Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs, 1997. ............................................................................. 7 Table 3. Water quality variables measured during the Intensive Water Quality Survey of Coosa and Tallapoosa River Reservoirs, 1997. ........................................................... 9 Table I.1. Algal growth potential testing (AGPT) of Coosa River reservoirs, August 1997............................................................................................................................43 Table II.1. Algal growth potential testing (AGPT) of Tallapoosa River reservoirs, August 1997. .............................................................................................................. 79 ii LIST OF FIGURE Figure 1. Publicly accessible reservoirs of Alabama......................................................... 2 Figure I.1. Weiss Reservoir with 1997 sampling locations. ............................................ 16 Figure I.2. Neely Henry Reservoir with 1997 sampling locations. ................................. 20 Figure I.3. Logan Martin Reservoir with 1997 sampling locations................................. 24 Figure I.4. Lay Reservoir with 1997 sampling locations................................................. 28 Figure I.5. Mitchell Reservoir with 1997 sampling locations. ........................................ 32 Figure I.6. Jordan Reservoir with 1997 sampling locations. ........................................... 36 Figure I.7. Mean total nitrogen (TN) concentrations of Coosa reservoir locations, April- October 1997. ................................................................................................ 40 Figure I.8. Mean total phosphorus (TP) concentrations of Coosa reservoir locations April-October 1997........................................................................................ 41 Figure I.9. Mean chlorophyll a concentrations of Coosa reservoir locations April- October 1997. ................................................................................................ 42 Figure I.10. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), and lake mean TP vs. discharge of Weiss Reservoir, April-October 1997........ 44 Figure I.11. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state index (TSI), and dissolved oxygen (DO) of Weiss Reservoir, April-October 1997. ..................................................................................................................... 45 Figure I.12. Depth profiles of dissolved oxygen (DO) and temperature (Temp) in the dam forebay of Weiss Reservoir, April-October 1997. .............................. 46 Figure I.13. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), and lake mean TP vs. discharge for Neely Henry Reservoir, April-October 1997. ..................................................................................................................... 47 Figure I.14. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state index (TSI) and dissolved oxygen (DO) for Neely Henry Reservoir, April-October 1997............................................................................................................. 48 Figure I.15. Depth profiles of dissolved oxygen (DO) and temperature (Temp) of the dam forebay of Neely Henry Reservoir, April-October 1997..................... 49 Figure I.16. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), and lake mean TP vs. discharge of Logan Martin Reservoir, April-October 1997............................................................................................................. 50 Figure I.17. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state index (TSI), and dissolved oxygen (DO) of Logan Martin Reservoir, April- October 1997............................................................................................... 51 Figure I.18. Depth profiles of dissolved oxygen (DO) and temperature (Temp) in the dam forebay of Logan Martin Reservoir, April-October 1997. .................. 52 Figure I.19. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), lake mean TP vs. discharge of Lay Reservoir, April-October 1997. .......... 53 Figure I.20. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state (TSI), and dissolved oxygen (DO) of Lay Reservoir, April-October 1997........... 54 iii LIST OF FIGURES (cont'd) Figure I.21. Depth profiles of dissolved oxygen (DO) and temperature (Temp) in the dam forebay of Lay Reservoir, April-October 1997................................... 55 Figure I.22. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), and lake mean TP vs. discharge of Mitchell Reservoir, April-October 1997.... 56 Figure I.23. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state index (TSI) and dissolved oxygen (DO) of Mitchell Reservoir, April-October 1997............................................................................................................. 57 Figure I.24. Depth profiles of dissolved oxygen (DO) and temperature (Temp) in the dam forebay of Mitchell Reservoir, April-October 1997............................ 58 Figure I.25. Total nitrogen (TN), lake mean TN vs. discharge, total phosphorus (TP), lake mean TP vs. discharge of Jordan Reservoir, April-October 1997....... 59 Figure I.26. Chlorophyll a, lake mean chlorophyll a vs. discharge, trophic state (TSI), and dissolved oxygen (DO) of Jordan Reservoir, April-October 1997....... 60 Figure I.27. Depth profiles of dissolved oxygen (DO) and temperature (Temp) in the dam forebay of Jordan Reservoir, April-October 1997............................... 61 Figure II.1. Harris Reservoir with 1997 sampling locations...........................................