Chemical Process Safety (PSM/RMP)

Case Study: Unnoticed Corrosion Causes Ammonia Leak at a Cold Storage Facility (TSSA)

In the spring of 2024, emergency responders responded to an ammonia leak at a cold storage facility in southern Ontario. The incident occurred on the roof, where a corroded shut-off valve on the hot gas line of an ammonia center evaporator failed, resulting in the release of ammonia gas into the surrounding environment. The cold

350 pound NH3 release @ potatoe processing plant leads to $65K in EPCRA citations

Respondent produced, used, or stored ammonia at the Facility and released a reportable quantity of an EHS, ammonia. On or about August 31, 2022, a “release” of ammonia in excess of 100 pounds occurred at the Facility (the release). As a result of the information obtained by the EPA and subsequent investigation, the Complainant has

Bypassed Safety Device Deficiencies (BSEE)

A team of auditors identified a potential risk associated with bypassed safety devices and inconsistent interpretation of regulations after multiple incidents of noncompliance were issued, associated with the operator’s failure to comply with 30 CFR 250.869 and 30 CFR 250.870 in 2025. The BSEE Performance-Based Risk Inspection (PBRI) covered five assets (all production platforms) in

Fatigue Cracking of ¾-Inch Pipe Nipple Results in Gas Release (BSEE)

The Bureau of Safety and Environmental Enforcement (BSEE) has investigated a recent offshore gas release incident resulting from the failure of a ¾-inch pipe nipple connected to a compressor suction scrubber (Figure 1). The failure led to an immediateplatform shut-in and a full muster of personnel onboard. The released gas posed a significant safety risk,

Consider Human Error and Domino Effects (EPSC Learning Sheet July 2025)

At an Ethylene unit in the Czech Republic (2015), when swapping over cooling water supply lines during a flowmeter calibration, the operator made a simple mistake. While intending to open valve #3 on the spare supply line, he closed the identical valve #2 instead, shutting off all cooling water to the Light Ends columns. A

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