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Toxicity Assessment of Sediments Collected Upstream and Downstream of the White Dam in Clarke County, Georgia


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Lasier, P.J., 2017, Toxicity assessment of sediments collected upstream and downstream of the White Dam in Clarke County, Georgia: U.S. Geological Survey data release,


A breach in the White Dam has been proposed to facilitate fish passage. As a Technical Assistance project, the U.S. Geological Survey provided toxicity assessments of sediment samples collected by USEPA personnel. These data describe water-quality conditions in exposure chambers during 42-d sediment exposures using the freshwater amphipod, Hyalella azteca.


Point of Contact :
Pete Lasier
Originator :
Pete Lasier
Metadata Contact :
Pete Lasier
Publisher :
U.S. Geological Survey
Distributor :
GS ScienceBase
USGS Mission Area :
Environmental Health
SDC Data Owner :
Patuxent Wildlife Research Center

Attached Files

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White Dam Breach-Ha Weights.csv 2.11 KB
White Dam Breach-Overlying Water Chemistry.csv 4.11 KB
White Dam Breach-Sediment Characteristics.csv 1.7 KB
White Dam Breach-Sediment Exposure Results.csv 1.91 KB


The overlying water chemistry data were collected to verify that acceptable test conditions for H. azteca existed during the sediment exposures. The sediment exposure data will be used along with bathymetric and biotic data collected by USEPA in a risk-assessment package assembled by the Georgia Environmental Protection Agency for presentation to the US Corps of Engineers as part of the permit process to breach the dam. The Ha Weights data are dry weights of amphipods surviving at the termination of sediment-toxicity assessment were determined to evaluate growth during sediment exposures. The sediment characteristics data are physical characteristics of the sediments including moisture and organic contents along with proportions of sand, silt, and clay were determined to aid in evaluations of sediment toxicity.



  • Patuxent Wildlife Research Center
  • USGS Data Release Products



Additional Information


Type Scheme Key
DOI doi:10.5066/F7M043WM

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