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Multi-Lake Regulation

The Study Board concluded that to more fully address changing water levels in the upper Great Lakes basin, there was a need to look beyond the existing system of Great Lakes regulation, and consider alternative approaches for managing and adapting to uncertain future conditions. One such option is multi-lake regulation – the possibility of operating regulation structures to control Great Lakes water levels and flows, within certain limits, to benefit the Great Lakes-St. Lawrence River system as a whole. In theory, this could be achieved either by using the existing two structures on the St. Marys and St. Lawrence rivers, with modified regulation rules that consider the entire state of the system, or by combining modified regulation rules at the existing structures with new control structures at one or more of the additional Great Lakes connecting channels, such as the St. Clair, Detroit and Niagara rivers.
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Regulation and Compensation Literature Review
Multi-Lake Regulation