EPA determined the following violations for the Facilities: Respondent violated NSPS Subpart KKK, 40 C.F.R. 60.632, by failing to operate valves and pressure relief devices with no detectable emissions; Respondent violated NSPS Subparts KKK, 40 C.F.R. 60.632, by failing to monitor components at the Facilities at the required monthly, quarterly, or other frequency; Respondent violated NSPS Subpart OOOO, 40 C.F.R. 60.5400, by failing to repair a valve at the Artesia Gas Plant within fifteen (15) days of identification of a leak; Respondent failed to timely identify the applicability of NSPS Subpart OOOOa, 40 C.F.R. 60.5365a(f), for process units at the Facilities.