CEMEX Inc., St. Barbara Cement Inc. and St. Marys Cement Inc. agreed to pay a 1,359,422 civil penalty, split between Michigan and the United States, in settlement of allegations their cement facility (formerly owned by CEMEX, then by St. Barbara and St. Mary's) violated state and federal air pollution laws over a long period without monitoring or action. The settlement also included an agreement to install a filtering system with an approximately 17 million cost. The announcement did not indicate how much each company would pay. Here we assume the total cost was divided evenly between the old and new owners.