Nutrient study in Lake Greenwood

CHED 843

Marshall L. Deanhardt, Ralph C. Layland, and Celeste M. Huggins.
The explosive growth in the upstate of South Carolina is having an adverse effect on the quality of water in Lake Greenwood. High phosphorous and nitrogen content has led to algal blooms at Lake Greenwood in recent years. During recent dry periods, more than 80 percent of the water flowing from the Reedy River into Lake Greenwood is treated effluent from sewage treatment plants. Steps must be taken to ensure the future quality of water in Lake Greenwood. The purpose of this study is threefold: 1) to identify the limiting nutrients entering and exiting the lake, 2) to measure the levels of extractable metals (lead, cadmium, chromium, and copper) in bottom sediments from six selected sites in the lake, and 3) to measure the internal loading of phosphorus across the sediment-water interface in the lake. Results from this ongoing study will be presented and discussed.