Don’t get wet! Physical Plant to start up sprinkler system on St. Paul campus today. Kelly Engebretson '99 M.A. April 12, 2012 The Physical Plant Grounds Department will start up the irrigation system on the University of St. Thomas’ St. Paul campus today, Thursday, April 12. This process may take up to two days to complete.Don’t get wet: On occasion, water may blow out of the sprinkler systems. The Grounds Department advises all walkers to watch out for this and to try to avoid these areas. For more information call Bob Reed, Grounds Department, (651) 962-6545.