ON MAY 17, 2016, AN AUTHORIZED REPRESENTATIVE TO THE EPA CONDUCTED AN INSPECTION OF THE C.I. THORNBURG COMPANY, INC. FACILITY LOCATED AT 4304 ALTIZER AVENUE IN HUNTINGTON, WV, TO DETERMINE COMPLIANCE WITH THE RISK MANAGEMENT PLAN (RMP) REGULATION PROMULGATED AT 40 C.F.R. PART 68 UNDER SECTION 112(r) OF THE CLEAN AIR ACT (THE ACT OR CAA). EPA FOUND THAT THE RESPONDENT HAD VIOLATED REGULATIONS IMPLEMENTING SECTION 112(r) OF THE ACT, SPECIFICALLY: THE OWNER OR OPERATOR FAILED TO (1) DOCUMENT THAT EQUIPMENT COMPLIES WITH RECOGNIZED AND GENERALLY ACCEPTED GOOD ENGINEERING PRACTICES IN ACCORDANCE WITH 40 CFR 68.65(d)(2) AND (2) FAILED TO ENSURE THE FREQUENCY OF INSPECTIONS AND TESTS OF PROCESS EQUIPMENT IS CONSISTENT WITH APPLICABLE MANUFACTURERS' RECOMMENDATIONS, GOOD ENGINEERING PRACTICES, AND PRIOR OPERATING EXPERIENCE [40 C.F.R 6873(d)(3)].