AT 1015 HOURS EE WAS FINISHING CLEANING THE DRIVE OVER HOPPER #1 WHEN HE THREW DOPWN THE ROLL CAUSING WATER TO GO DOWN INTO THE TUNNEL. HE THEN WENT TO INTO THE TUNNEL TO ENERGIZE THE AIR CANN ONS, AND WAS SHOCKED WHEN HE CAME INTO CONTACT WITH THE CONTROL BOX W/ 110V AC. EE WAS ALSO WET.