4/22/19-In morning noticed that petroleum coke spill between 2 kiln bldgs smoldering. Location of spill made access initially difficult. Was evaluated how to access, extinguished ASAP 4/22/19. MSHA was not notified or an initial 7000-1 report done as issue was not viewed as fire or any risk of combustion. Failure to report resulted in paperwork citation #9382974 issued on 7/29/19.