One of the top questions I get in my process safety circles is… Do we have to pressure test/leak test piping that has been opened/modified before we re-introduce the HHC/EHS to the piping? I turn to one of my favorite sources for RAGAGEPs, NFPA, and one of the best NFPA codes is NFPA 58, which…...
“Leak Checking” new and modified piping Read More »
The U.S. Chemical Safety and Hazard Investigation Board (CSB) marked the 20th anniversary of the fatal explosions and fires at BP America Texas City Refinery in Texas City, TX, that occurred on March 23, 2005. The tragic incident resulted in the deaths of 15 people and injuries to 180 others. To remember this deadly event,…...
CSB marks the 20th anniversary of the BP Texas City Refinery Read More »
Processes that handle Liquified Pressurized Gases are required to have Hydrostatic Relief Valves on liquid piping where the liquid can be trapped. Much like vapor/gas phase Pressure Safety Valves, it is frowned upon when we have an intervening valve under the PSV. However, many codes today ALLOW us to install a 3-way valve below the…...
3-Way Valve under Hydrostatic RV? Read More »
The arrangement below is very common in processes/systems. This simple yet common arrangement causes havoc in hazard analyses. As the title states, is this arrangement managed with a Temporary SOP, a Car-Seal, or Both? The issue is that the motorized valve is tied to a Hi-Hi level alarm and interlock. When the vessel archives its…...
Temporary SOP or a Car-Seal or Both? Read More »
Several clients design Double Block and Bleed (DB&B) isolation into their process, especially when they know they will regularly enter certain Permit-Required Confined Spaces (PRCS). When these DB&B arrangements are part of the design, the isolation valves and the bleed valve are near one another. This allows us to use a single lock with some…...
How many locks do we need to Lockout a Double Block & Bleed arrangement Read More »
Contributing to the severity and duration of the fire was the lack of storage tank fail-safe control valves and internal fire valves and the location of the control building in the containment area where fuel leaks are likely to occur. The National Transportation Safety Board determined that the probable cause of the fire at the…...
Did we learn from the Stapleton Air Port Tank Farm Fire (1990) Read More »
I think most EHS professionals will agree that bulk tanks of hazardous materials need some means of “secondary containment”. This practice has been in place for my entire career and rarely gets challenged. However, in recent years I have come across several scenarios where either the facility/unit designed the process to function this way or…...
Secondary Containment and “Equalization” of tanks Read More »
Today, the CSB released a second update on its ongoing investigation into the fatal hydrogen sulfide (H2S) release that occurred on October 10, 2024, at the PEMEX Deer Park Refinery in Deer Park, Texas. Two contract workers died during the incident, and over 27,000 pounds of toxic hydrogen sulfide gas were released. Local authorities issued…...
We see this far too often… a management system failure related to 3-year PSM/RMP audits. A company with multiple facilities should be “trending” its 3-year audit findings to IDENTIFY opportunities for improvement across the company. I did this years ago when I was a member of the Corporate EHS Team for a semi-conductor. And was…...
If we are not trending the findings from our 3-year PSM/RMP audits, WTH are we doing? Read More »
A video I posted over two years ago has come full circle. A citizen (some may call him homeless) was allowed to sit (and smoke) within 20′ of a gasoline tanker unloading operation at a gas station. His actions may not have been his sole demise, as we can see in the video evidence that…...
Failing to control flammable vapor results in severe injuries for by-stander (video) Read More »
Fire Severely Burned an Employee and Resulted in $350 Million in Damages The CSB released its final investigation report into the November 19, 2023, fire at the renewable diesel facility in Martinez, CA. The incident seriously injured one employee, who suffered third-degree burns over most of his face and body and resulted in approximately $350 million in…...
CSB Issues Final Report into 2023 Fire at a Renewables Facility in Martinez, CA Read More »
Volume 2 covers 25 serious chemical incidents in 14 states: Arkansas, Alabama, California, Colorado, Connecticut, Illinois, Louisiana, Mississippi, Nebraska, Nevada, New Mexico, Ohio, Oklahoma and Texas. These serious incidents resulted in 7 fatalities, 23 serious injuries, and approximately $1 billion in property damage. Link to Volume 2: http://www.idevmail.net/link.aspx?l=1&d=86&mid=421120&m=2672 The reports give the public important information about…...
The CSB releases Volume 2 of its Incident Reports Read More »
