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Toxicity assessment of sediments collected upstream and downstream from the White Dam in Clarke County, Georgia

Open-File Report 2018-1036

By:
ORCID iD
https://doi.org/10.3133/ofr20181036

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Abstract

The White Dam in Clarke County, Georgia, has been proposed for breaching. Efforts to determine potential risks to downstream biota included assessments of sediment collected in the vicinity of the dam. Sediments collected from sites upstream and downstream from the dam were evaluated for toxicity in 42-day exposures using the freshwater amphipod Hyalella azteca. Endpoints of the study were survival, growth, and reproduction of H. azteca. Results indicated no significant differences between the collected sediments and the water-only treatment used for comparison of the test endpoints. Therefore, based on the laboratory experiments in this study, sediment migration downstream from a breach of the Dam may not pose a toxicity risk to downstream biota.

Suggested Citation

Lasier, P.J., 2018, Toxicity assessment of sediments collected upstream and downstream from the White Dam in Clarke County, Georgia: U.S. Geological Survey Open-File Report 2018–1036, 6 p., https://doi.org/10.3133/ofr20181036.

ISSN: 2331-1258 (online)

Table of Contents

  • Abstract
  • Introduction
  • Methods
  • Results and Discussion
  • References Cited

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Toxicity assessment of sediments collected upstream and downstream from the White Dam in Clarke County, Georgia
Series title:
Open-File Report
Series number:
2018-1036
DOI:
10.3133/ofr20181036
Year Published:
2018
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
Patuxent Wildlife Research Center
Description:
v, 6 p.
Country:
United States
State:
Georgia
County:
Clarke County
Other Geospatial:
White Dam
Online Only (Y/N):
Y
Additional Online Files (Y/N):
N