| - ILLI~OIS ENVIRONMENTAL PROTECTION AGENCY
August L 2012Exelon Generation Company.- Based on its review, the Agency GRANTS LaSalle Station a provisional variance
extension subject to the specific conditions set forth below.- Makeup water is pumped fi'om the Illinois River using three pumps with a total capacity
of90,000 gpm.- For example, the upstream river
temperature of the Illinois River was measured at 89°F on July 3,2012.nighttime cooling, the river retains the heat introduced to it during the da}1ime hours,both upstream and downstream ofthe station. |