Research Article
May 1978
Lake Process Models Applied to Reservoir Management
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VIEW THE REPLYAuthors: Wesley L. Bradford and David J. MaieroAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 104, Issue 5
Abstract
Two simplified models of lake processes are used to predict the trophic state of the proposed Tocks Island Lake to be constructed on the Delaware River, north of Trenton, N.J. Using independent estimates of phosphorus entering the lake area via the river, both models predicted the lake would be eutrophic with hypolimnetic dissolved oxygen demands exceeding 5 mg/l and midsummer Secchi Disk transparency depths as low as 0.6 m. Point source phosphorus loads to the basin were estimated from known wastewater discharges, and nonpoint loads from known land uses and area loading factors. Then, proposed measures to reduce the phosphorus load were tested for effectiveness by calculating the proportional decrease in load brought about by each measure and applying the proportion to the phosphorus load entering the lake area. The new load was then used with the models to predict the new trophic state. It was found that very stringent controls would be required to bring a significant change in the trophic state toward mesotrophy.
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Published In
Journal of the Environmental Engineering Division
Volume 104 • Issue 5 • May 1978
Pages: 981 - 996
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: May 1978
Published online: Feb 11, 2021
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Authors
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Wesley L. Bradford
Environmental Consultant, Menlo Park, Calif.
David J. Maiero
URS Corp., San Mateo, Calif.
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