Water Quality Assessment for Lake Blackshear, Georgia
Broadhurst, Lisa Jan
Elder, Elisabeth D.
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Lake Blackshear, a man-made impoundment of the Flint River, is used extensively for recreational activities as well as for power generation. The purpose of this study was to monitor water quality in two representative areas of the Lake, Spring Creek and Warren Slough. Samples from seven locations were collected four times each month from December 1999, through December 2000. Samples were monitored for total coliforrns and fecal conforms with the most probable number method and for heterotrophic plate counts with nutrient agar. In situ determinations of temperature, dissolved oxygen, and pH were made respectively with an YSI meter and a pHTestr2. Seasonal variations, high temperatures with low dissolved oxygen during summer months and lower temperatures with higher dissolved oxygen levels in winter months, were observed. The pH remained relatively constant throughout the study period. Spatial and seasonal variations occurred in the bacterial counts but coliform counts generally met Georgia requirements for recreational and fishing waters.