THE INJURED EE WAS OPERATING THE WATER TRUCK AND WAS USING THE DECK MOUNTED MONITOR WATER CANNON. HE NOTICED THAT THE RADIATOR CAP AP REARED LOOSE AND HE TOUCHED THE CAP WITH THE TOE OF HIS BO OT. THE CAP FLEW OFF AND THE HOT ENGINE COOLANT SPEWED FROM THE RADIATOR SOAKING HIS LEG, ARM AND HAND. THIS CAUSED SECOND DEGREE BURNS.