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Water Uses Synthesis and Summary

Impact of Fluctuations in Water Levels and Flow Rates on Water Uses within the Upper Great Lakes



Contributors
Environmental Consulting & Technology Inc.;Veritas Economic Consulting, Great Lakes Commission
Abstract
Identifies and characterizes potential problems for various water users due to fluctuations in upper Great Lakes water levels. Databases of water intakes and outfalls were developed, and data sources, types of data available, data gaps and potential ways to improve the databases were documented. A short-coming of the data was that it contained incomplete information on the vertical reference datum, and thus the impact of fluctuating lake levels on the facilities was impossible to assess. Consequently, it was decided to focus on a smaller number of facilities and seek more detailed, complete information using a survey developed for this purpose. Analysis of the survey data produced performance indicators that identify the number of municipal and industrial water intake and outfall systems affected by fluctuating lake levels, and also identified the elevations, by lake, where facilities will encounter problems or cease operations as a result of rising or falling lake levels.
Reports:
Impact of Fluctuations in Water Levels on Water Users Part 1
Impact of Fluctuations in Water Levels on Water Users Part 2
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Supporting Content (Show)
Main Topics
Lake Superior Regulation
Questions We Asked
Can a regulation plan be designed to perform better than Plan 1977A?
What are the main benefits of the new regulation plan?
Key Findings
Plan 2012 will be more robust and provide important benefits compared to Plan 77A
Plan 2012 provides overall economic improvements
Recommendations
Approve Lake Superior Plan 2012
Tasks
Water Uses Evaluation