Accession Number:

ADA282881

Title:

Limnological Assessment of West Point Lake, Georgia

Descriptive Note:

Final rept.

Corporate Author:

ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Report Date:

1994-07-01

Pagination or Media Count:

188.0

Abstract:

West Point Lake is a large hydropower reservoir constructed and operated by the U.S. Army Corps of Engineers on the Chattahoochee River in west- central Georgia. Water quality and mixing characteristics are markedly impacted by water and material loads from the river and by within-lake processes. In general, the lake is nutrient-rich and highly productive, and exhibits pronounced patterns in the distribution of chlorophyll and turbidity. Data derived from LANDSAT images and limnological surveys, as well as data resulting from intensive sampling in selected areas, were used to describe and assess observed patterns in the distribution of water quality variables. Cluster analyses identified four distinct lake regions characterized as lake-like with moderate to low nutrients and productivity cluster 1, turbid nutrient-rich and advective cluster 4, and intermediate to high in nutrient concentration and turbidity level. The latter regions are potentially sensitive to changes in nutrient input cluster 2 or turbidity level cluster 3. Conditions in the tailwater below West Point Dam were influenced by hydrograph changes resulting from hydropower operation, local impacts from inflowing tributaries, and loss reactions, including oxidation, adsorption, and sedimentation. Chlorophyll, Nutrients, Tailwater, Invertebrates, Reservoir, Water quality, LANDSAT, Sediment

Subject Categories:

  • Hydrology, Limnology and Potamology
  • Civil Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE