Respondent was the owner of the facility under CAA 112(a)(9) and stored propane over the threshold quantity of 10,000 pounds per year and : failed to estimate the greatest distance to endpoint for the Facility's worst case scenario and failed to meet other RMP requirements outlined in this CAFO, and because of these failures, it was unlawful to operate said facility. A CAFO was reached between the Respondent and EPA, with a civil penalty of $275,400.