Onodaga Lake and Dissolved Oxygen in Seneca River

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Abstract
An evaluation, conducted by model simulation, is presented of the impacts the elimination of chemically-based physical stratification and the range of behavior of phytoplankton released from hypereutrophic Onondaga Lake would have on the dissolved oxygen resources of the Seneca River, under critical flow, temperature, and loading conditions. Further, a method is presented for determining the minimum fraction of lake phytoplankton that will decay in a receiving river under conditions of nutrient saturation for both systems. The elimination of physical stratification in the river was predicted to cause degradation of oxygen conditions in the surface waters of the river; ranging from noncontravention to severe contravention of present standards (daily average concentration of 5.0 mgl−1). This broad range of potential impact is associated with the degree of uncertainty in behavior of lake phytoplankton in the river.

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