Research Article
Dec 1967
Effects of Impoundments on Water Quality
Authors: Milo A. Churchill, F.ASCE, and W. R. NicholasAuthor Affiliations
Publication: Journal of the Sanitary Engineering Division
Volume 93, Issue 6
Abstract
Changes occurring in the quality of water during its passage through Tennessee River reservoirs and during lengthy storage in tributary impoundments are observed. Seasonal variations of temperatures of water discharged from main-river impoundments are discussed. DO concentrations in the water discharged from main-river reservoirs recede during the summer months but do not reach the low concentrations observed below storage impoundments. Both total coliform and fecal coliform concentrations in main-stream reservoirs increase greatly below local municipalities. In tributary storage impoundments strong thermoclines develop in early spring, and relatively cool water, low in DO, is discharged through low-level power intakes well into or throughout the summer. Low DO concentrations are also caused by biological activity in eutrophic impoundments, inflows to which are otherwise relatively free of pollution. A multiple regression technique is used to develop an equation for predicting DO concentrations to be expected in releases from a proposed impoundment.
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Information
Published In
Journal of the Sanitary Engineering Division
Volume 93 • Issue 6 • December 1967
Pages: 73 - 90
Copyright
© 1967 American Society of Civil Engineers.
History
Published in print: Dec 1967
Published online: Feb 12, 2021
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Authors
Affiliations
Milo A. Churchill, F.ASCE
Chf., Water Quality Branch, Div. of Health and Safety, Tennessee Valley Authority, Chattanooga, Tenn.
W. R. Nicholas
Asst. Chf., Water Quality Branch, Div. of Health and Safety, Tennessee Valley Authority, Chattanooga, Tenn.
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.