EE IS STATING THAT HE WAS PUSHING A WHEELBARROW ON THE CONCRETE FLOOR OF THE PLANT WITH APPROX 10 #S OF LOOSE COAL/MUD IN IT. HE CROUCHED DOWN A LITTLE TO GO UNDER A STRUCTURE AND WHEN HE PROC EEDED HE FELT A SHARP PAIN IN HIS LOWER BACK. THIS CAUSED HIM TO GO TO HIS KNEES AND THEN ON THE FLOOR.