U.S. EPA indicated that HexionÂs recordkeeping and monitoring of the carbon systems should be improved upon in order to be able to demonstrate continuous compliance with the Illinois SIP and Title V requirements of 90 percent control of process emissions. Hexion and U.S. EPA determined that the best course of action would be to install a continuous analyzer on each carbon system, and to improve manual monitoring practices in the time period before installation of the analyzers. The Administrative Consent Order memorializes the steps Hexion will take to implement the course of action described above, and will ultimately enable the facility to continuously demonstrate compliance with the applicable emission control requirements.