NPDES Permit IL0002224 authorizes Exelon Dresden to operate in indirect open cycle
mode from June 15th to September 30th of each year (about 3 1/2 months).
In the indirect
open cycle mode, approximately J,000,000 gpm of cooling water is drawn into ExelonDresden's cribhouse intake structure from the Kankakee River via the intake canal.
The upstream river temperature of the Kankakee River was measured at 89.6° F on July
15,2012.
The capacity ofthe Illinois River and the Station's cooling
pond to dissipa...
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