RESPONDENTS, LOCKFORMER COMPANY AND MET-COIL SYSTEMS CORPORA TION, SHALL PERFORM THE REMOVAL ACTIONS ITSELF OR RETAIN A CONTRACTOR TO IMPLEMENT THE REMOVAL ACTIONS. RESPONDENTS SHALL REIMBURSE U.S. EPA, UPON WRITTEN DEMAND, FOR ALL RESPONSE COSTS INCURRED BY THE UNITED STATES IN OVERSEEING RESPONDENTS' IMPLEMENTATION OF THE REQUIREMENTS OF THIS ORDER. VIOLATION OF ANY PROVISION OF THIS ORDER MAY SUBJECT RESPONDENTS TO CIVIL PENALTIES OF UP TO $27,500 PER VIOLA- TION PER DAY.