USS, A SUBSIDIARY OF USX, OPERATES THE GARY-WORKS FACILITY IN GARY, IN. THE GARY WORKS HAS BENZENE CONTAINGING WASTE STREAMS ABOVE THE REGULATORY THRESHOLD ESTABLISHED IN THE BENZENE NESHAP RULE. THE GARY WORKS FAILED TO PROPERLY MEASURE THE BENZENE WASTE STREAMS AT ITS FACILITY AND FAILED TO INSTALL PROPER CONTROLS IN ACCORDANCE WITH THE REGS.