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COLIFORMS AND WATER QUALITY: USE OF DATA IN PROJECT DESIGN AND OPERATION 1
Author(s) -
Thornton Kent W.,
Nix Joe F.,
Bragg Jimmy D.
Publication year - 1980
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1980.tb02336.x
Subject(s) - turbidity , environmental science , fecal coliform , hydrology (agriculture) , water quality , interflow , settling , storm , plume , stormwater , surface runoff , environmental engineering , meteorology , geology , geography , oceanography , ecology , geotechnical engineering , biology
Knowledge of coliform transport and disappearance may provide information for project design and operation that minimizes potential water quality problems such as the violation of body contact recreation standards. Storm events were sampled in the Caddo River above DeGray Reservoir, Arkansas, and then tracked through the reservoir using the increased turbidity associated with the storm flows. Fecal coliforms were sampled both in the river and throughout the water column in the reservoir. In general, increased fecal coliform concentrations were closely associated with the increased turbidity resulting from the storm flows. This association existed for all three types of turbidity plume movement ‐ overflow, interflow, and underflow. As the turbidity plume moved down the reservoir, fecal coliform concentrations decreased due to die‐off, settling, and dilution. With several assumptions, it is possible to use this information to assist in locating recreational sites in a reservoir or to anticipate possible body contact standard violations at existing recreation sites.