A report on the feasibility and cost of aeration on the Red River / author, Y.L. Lau. : En13-7/75-1E-PDF

"Dissolved oxygen levels, monitored at Emerson, Manitoba, on the Red River recently showed a slug of water about 17.5 miles long which had only about l ppm of DO. The river was ice covered at the time and atmospheric reaeration could not take place. Such a slug of 'dead' water would, of course, be harmful to fish and other aquatic life. The Hydraulics Research Division was, therefore, requested to give a quick preliminary report on the feasibility of using artificial aeration should such incidents reoccur and give a rough estimate of the costs involved"--Introd.

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