853AM-A TRUCK CARRYING INDUSTRIAL SLUDGE HAS DUMPED THE SLICK MATERIAL ON FM 3083 FROM I-45 TO JUST PAST AIRPORT ROAD. HAZMAT CREWS ARE ON THE SCENE. THE WORST CONCENTRATION IS ON FM 3083 EASTBOUND FROM FM 1484 TO AIRPORT ROAD. THIS SECTION IS NOW CLOSED AND WILL BE FOR SEVERAL HOURS.