Permit Required Confined Spaces

Fatal flash fire in water tank (PRCS)

On or about May 28th, 2020 at approximately 15:30 hours three (3) employees were exposed to fire and explosion hazards when a remediation repair (on a produced water tank) involved a grinder for preparing the surface and a heat gun for preparing an epoxy on a tank which had accumulated hydrocarbon vapors from the produced…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Fatal flash fire in water tank (PRCS) Read More »

Manhole entry kills entrant and almost killed a “would-be rescuer” (H2S and O2 deficiency)

At 9:00 a.m. on May 29, 2020, Employee #1 and #2, coworkers, discussed entry into a manhole to clear a blockage. Employee #1 entered into the manhole without personal protective equipment, without training, and without performing any air quality testing. Employee #1 successfully placed the line to clear the blockage and began to climb out…....

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Manhole entry kills entrant and almost killed a “would-be rescuer” (H2S and O2 deficiency) Read More »

Flammable atmosphere generated within a ship’s ballast tank

This is a MUST READ accident report for those who are involved in entries into Permit-Required Confined Spaces.  It is a scenario that occurs daily around the globe and is often overlooked until tragedy strikes.  Many times over my career, the INITIAL testing of the space indicated NO ATMOSPHERIC HAZARDS were present; however, the work…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Flammable atmosphere generated within a ship’s ballast tank Read More »

Employee enters reactor and dies from fall after being overcome by VC vapors

At approximately 4:00 a.m. on March 29, 2020, an employee was installing a blind on a flange on a reactor. Then, the probe stem fell inside of the reactor, and the employee tried to fish it out. Using a ladder, the employee went inside the reactor that was NOT cleared for entry because the reactor…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Employee enters reactor and dies from fall after being overcome by VC vapors Read More »

What does “potential” mean in relation to Permit-Required Confined Spaces (PRCS)

The word “potential” is defined by Merriam-Webster as: existing in possibility : capable of development into actuality In OSHA’s PRCS standards (both 1910 and 1926 versions) it uses the word “potential” when talking about atmospheric hazards; especially when we are talking about RECLASSIFYING a PRCS to a NON-PRCS using 1910.146(c)(7) or 1926.1203(g) 1926.1203(g)(1) If the permit…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

What does “potential” mean in relation to Permit-Required Confined Spaces (PRCS) Read More »

Is NFPA 326 a step up from OSHA’s PRCS entry standards?

So OSHA made some serious improvements in their latest Construction Standard, 1926.1201-.1213, for confined spaces.  But there is another option to “upgrade” our efforts for entry safety practices and that is NFPA 326 – Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair. … Membership Required You must be a member to...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Is NFPA 326 a step up from OSHA’s PRCS entry standards? Read More »

Is a spiral freezer a Permit-Required Confined Space (PRCS)?

The short and simple answer is YES. It is, without a doubt, a PRCS.  This debate is much like the “Is an Evaporative Condenser a PRCS” discussion.  This week, I was presenting at the 2020 Refrigerating Engineers & Technicians Association (RETA) virtual conference, and my presentation was “Evaluating Your Ammonia Refrigeration System to determine if…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Is a spiral freezer a Permit-Required Confined Space (PRCS)? Read More »

PRCS Fatality in 8’X8’X10′ pit (Oxygen Deficiency)

At 9:50 a.m. on June 5, 2018, Employee #1 was in an 8 foot by 8-foot pit that was approximately 10 feet deep, cleaning out built-up sediment using a brush and 5-gallon bucket. Employee #1 was being helped by Employee #2, who was dumping the waste outside of the building that the pit was in…....

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

PRCS Fatality in 8’X8’X10′ pit (Oxygen Deficiency) Read More »

Isolating a PRCS with misaligning or removing sections of lines, pipes, or ducts

Does your entry procedures/practices allow for “misaligning or removing sections of lines, pipes, or ducts” as a means to isolate a PRCS?  If yes, do your procedures/practices specify the length of “sections of lines, pipes, or ducts” that have to be removed in order to meet the intent of “isolation”?  I can not recall where…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

Isolating a PRCS with misaligning or removing sections of lines, pipes, or ducts Read More »

The Silver Medalist for the number of “would-be-rescuers” (Water Valve Pits are PRCSs)

NOTE: this incident happened long BEFORE OSHA had 1910.146 in place… At about 3:30 p.m. on October 10, 1986, Employee #1, a self contractor, arrived to inspect the sawmill’s fire protection sprinkler system backflow valve located in an underground vault 8 ft deep by 6 ft wide by 12 ft long with a 31 in…....

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

The Silver Medalist for the number of “would-be-rescuers” (Water Valve Pits are PRCSs) Read More »

PRCS (Heater Treater) Explosion fatality (Flammable atm & $44K)

At 10:45 a.m. on January 11, 2020, Employee #1, employed by an oil and gas operation company, was overseeing a heater treater welding repair. Employee #2 emptied the remaining fluids in the heater treater. Employee #1 power washed the heater treater to remove any remaining flammable materials and ensure that it was safe for welding…....

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

PRCS (Heater Treater) Explosion fatality (Flammable atm & $44K) Read More »

OSHA grants an interim order for isolation of a “condenser/water box” (PRCS isolation – 1910.146(d)(3)(iii))

CAUTION:  This interim order is specific to the facility requesting it.  Do NOT use these measures at your facility!!! If I had a nickel for every time I have heard the excuse… “its more dangerous to do these isolations than it is to do the entry with lesser isolations,” I would not be writing this…...

Membership Required

You must be a member to access this content.

View Membership Levels

Already a member? Log in here

OSHA grants an interim order for isolation of a “condenser/water box” (PRCS isolation – 1910.146(d)(3)(iii)) Read More »

Scroll to Top