EE WAS SHOWERING AT END OF SHIFT. HE HAD COMPLETED SHOWER AND SHUT OFF HOT WATER AND COLD WATER. APPARENTLY HOT WATER VALVE DID NOT SHUT COMPLETELY AND HOT CONDENSATE APPROXIMATELY 216 DEGREES CAME OUT OF SHOWER HEAD BURNING LEFT SHOULDER, BACK AND UPPER ARM. WATER HEATED TO 216 DEG BECAUSE OF FAULTY STEAM REGULATOR TO CONTROL VALVE.