HYDROLOGIC EFFECTS OF THE JUNE 1998 AUGUST 2002 DROUGHT IN SOUTH CAROLINA A compilation of hydrographs illustrating the effects of the drought on ground-water levels, lake levels, and streamflows in South Carolina. STATE OF SOUTH CAROLINA DEPARTMENT OF NATURAL RESOURCES LAND, WATER AND CONSERVATION DIVISION WATER RESOURCES REPORT 34 2004 HYDROLOGIC EFFECTS OF THE JUNE 1998 AUGUST 2002 DROUGHT IN SOUTH CAROLINA A compilation of hydrographs illustrating the effects of the drought on ground-water levels, lake levels, and streamflows in South Carolina. STATE OF SOUTH CAROLINA DEPARTMENT OF NATURAL RESOURCES LAND, WATER AND CONSERVATION DIVISION WATER RESOURCES REPORT 34 2004 This document is available on the Department of Natural Resources web site at http://www.dnr.state.sc.us/ STATE OF SOUTH CAROLINA The Honorable Mark H. Sanford, Governor South Carolina Department of Natural Resources Board Members Michael G. McShane, Chairman ................................................................................................................... Member-at-Large T. Smith Ragsdale, III ..................................................................................................................... 1st Congressional District R. Michael Campbell, II ................................................................................................................ 2nd Congressional District Stephen L. Davis ........................................................................................................................... 3rd Congressional District Dr. Joab M. Lesesne, Jr. ................................................................................................................. 4th Congressional District Dr. Douglas A. Rucker ................................................................................................................... 5th Congressional District John P. Evans ................................................................................................................................ 6th Congressional District John E. Frampton, Director Land, Water and Conservation Division Alfred H. Vang, Deputy Director A.W. Badr, Ph.D., Chief, Hydrology Section ii HYDROLOGIC EFFECTS OF THE JUNE 1998 AUGUST 2002 DROUGHT IN SOUTH CAROLINA South Carolina experienced one of its most severe multiyear droughts during the period from June 1998 through August 2002. Ground-water levels, lake levels, and streamflows were at or below record lows in most areas. This report documents the hydrologic conditions of the States aquifers, lakes, and streams during the drought. It consists of three sections: GROUND-WATER LEVELS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Joseph A. Gellici and Shelly L. Harwell LAKE LEVELS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Joseph A. Gellici and A. W. Badr STREAMFLOW CONDITIONS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Masaaki Kiuchi Each section consists of hydrographs that illustrate the effects of the drought on the water resources of South Carolina. Data for the report were provided by the U.S. Geological Survey, South Carolina Department of Natural Resources, Duke Power Company, U.S. Army Corps of Engineers, South Carolina Public Service Authority (Santee-Cooper), and the South Carolina Electric and Gas Company. iii CONTENTS Page GROUND-WATER LEVELS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Joseph A. Gellici and Shelly L. Harwell Abstract ................................................................................................................................. 1 Introduction ............................................................................................................................ 1 Aquifers of South Carolina ...................................................................................................... 1 Methodology .......................................................................................................................... 2 Discussion and hydrographs .................................................................................................... 5 References ............................................................................................................................. 26 LAKE LEVELS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Joseph A. Gellici and A. W. Badr Abstract ................................................................................................................................. 27 Introduction ............................................................................................................................ 27 Methodology .......................................................................................................................... 28 Discussion and hydrographs .................................................................................................... 28 STREAMFLOW CONDITIONS IN SOUTH CAROLINA DURING THE JUNE 1998 AUGUST 2002 DROUGHT by Masaaki Kiuchi Introduction ............................................................................................................................ 34 Unregulated streams ............................................................................................................... 34 Regulated streams ................................................................................................................... 35 iv FIGURES Page 1. Map showing location of monitor wells and stream gages used in drought study .............. 3 Hydrographs of Coastal Plain wells 2. Well AIK-846 .............................................................................................................. 7 3. Well AIK-849 .............................................................................................................. 7 4. Well ALL-347 .............................................................................................................. 8 5. Well ALL-348 .............................................................................................................. 9 6. Well ALL-371 .............................................................................................................. 10 7. Well ALL-372 .............................................................................................................. 11 8. Well ALL-373 .............................................................................................................. 12 9. Well ALL-375 .............................................................................................................. 13 10. Well ALL-376 .............................................................................................................. 14 11. Well ALL-377 .............................................................................................................. 15 12. Well BFT-429 .............................................................................................................. 16 13. Well BRK-431 ............................................................................................................. 16 14. Well CHN-14............................................................................................................... 17 15. Well CHN-44............................................................................................................... 17 16. Well COL-16 ............................................................................................................... 18 17. Well COL-97 ............................................................................................................... 18 18. Well HAM-83 .............................................................................................................. 19 19. Well MLB-110 ............................................................................................................. 19 20. Well MRN-77 .............................................................................................................. 20 21. Well RIC-585............................................................................................................... 20 Hydrographs of Piedmont wells 22. Well AND-326 ............................................................................................................. 21 23. Well CTR-21 ................................................................................................................ 21 24. Well MCK-52 .............................................................................................................. 22 25. Well OCO-233 ............................................................................................................ 22 26. Well SAL-69 ................................................................................................................ 23 27. Well SPA-1581 ............................................................................................................ 23 28. Well YRK-147 ............................................................................................................. 24 29. Monthly precipitation in Allendale County, 1996-2002 (station 70126) ........................... 25 30. Composite plot of eight wells at site C-10, Allendale County .......................................... 26 Hydrographs of lakes 31. Lake Greenwood.......................................................................................................... 29 32. Lake Hartwell ..............................................................................................................