WHILE ATTEMPTING TO MAKE A DELIVERY, THE EE WAS REQUIRED TO WADE THROUGH 12-14"" OF STANDING WATER. IN DOING SO HE TRIPPED OVER A SUBMERGED CABLE. WHEN HE FELL HE STRUCK HIS LT. KNEE ON A ROCK FRACTURING THE PATELLA. HE ALSO SPRAINED HIS LT.SHOULDER & BOTH ELBOWS IN ARRESTING THE FALL. HE SOUGHT TREATMENT AT 5:00PM.