On May 14, 2020, there was an incident at the Facility that resulted in an accidental release. A pipe failure occurred in the synthesis gas area of ammonia plant. The failed pipe was due to high cycle, low stress fatigue. Respondent failed to correct equipment deficiencies to maintain the ongoing integrity of process equipment pursuant to 40 CFR 68.73(e) and failed to perform appropriate checks and inspections on process equipment, pursuant to 40 CFR 68.73(f)(2).