REGINA – A new report says the tools and procedures used by the Saskatchewan Watershed Authority to manage the Gardiner Dam during high water flows last year were antiquated.
The report says there were deficiencies in estimating inflows and outflows from Lake Diefenbaker.
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That impacted how decisions were made to operate the dam when the water level was high.
The report says Gardiner Dam is one of the few major control structures in North America operated for multiple purposes without a formal ranking of priorities, such as flood control, hydroelectric generation and water supply.
It says there needs to be priorities instead of the ad hoc regime currently in place.
And it says if water supply and hydroelectricity generation are the overriding objectives, then the reduced flood protection capability should be explained to the public.
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