Safety Info Posts

N2 used in a “purged-enclosure” for HAZLOC leads to O2 Defecient Atm

I have been writing a lot about the hazards of using N2 and CO2 in occupied spaces without adequate safeguards. This fatal accident occurred inside what many will call an “instrument shack” within a chemical process. This room had a gas chromatograph machine that was NOT intrinsically safe, so it was within a “pressureized enclosure”…...

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Does your Process Hazards Analysis (PHA) require teams to consider the PREVENTION, PROTECTION, and MITIGATION layers of protection?

Whenever I facilitate a PHA for a client who is serious about the exercise, I always create a visual on a white board so the team can methodically discuss ALL the safeguards/barriers/controls that are present to PREVENT-PROTECT-MITIGATE the event being studied. It looks like this:… Membership Required You must be a member to access this...

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EPA RMP citations @ ferric chloride manufacturing facility (Cl2 & $20K)

The Respondent owns and operates a ferric chloride manufacturing facility, which maintains a maximum inventory of 3,000,000 pounds of the regulated toxic substance chlorine, as stated in the December 21, 2021, RMP that was submitted to and reviewed by EPA. Chlorine is a regulated toxic substance under Section 112 of the CAA with a threshold…...

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This time of year, the overfilling of LPG tanks catches up to the unsafe practice

Hazmat crews respond to propane tank leak in Suffolk Talk to anyone who deals with LPG, and they will tell you that we normally see an increase in leaking tanks this time of year. However, I believe we are seeing an increase in these events year after year. One speculation is that delivery businesses are…...

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Working around high-pressure is NEVER “routine”

Last month, a city water worker was killed when a high-pressure water hose operating at around 1,000 psig struck the worker in the head. The police report used the phrase “the deceased had performed the task countless times and knew to keep his foot on top of the pressure line“. REPORT: Water crews responded to…...

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When should WARNING/CAUTION signs be posted when a Nitrogen/CO2 gas source is present?

Nitrogen (N2) and carbon dioxide (CO2) are becoming very popular in food plants for a whole host of reasons. A number of years ago, we lost six workers to an N2 event at a food plant in GA. A look at OSHA data from 2020 to the present shows incidents involving N2 (see below). But…...

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Nitrogen (N2) kills two (2) more unsuspecting workers (Contractors)

Two companies have been fined after two pest control contractors, 34 and 49, died while carrying out pest control work at a chicken factory on October 4, 2018. The men had entered an area full of concentrated nitrogen pumped from a chiller system. When the duo failed to return home from work the night before,…...

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What is OSHA’s official position on the enforcement of the 140 dB peak sound pressure level?

Since the standard says, “should not exceed” rather than “shall not exceed,” is the 140 dB level a recommendation or is compliance mandatory?… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...

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Updated Enforcement Policy for Recording and Reporting of COVID-19 cases

OSHA has issued an updated enforcement policy for recording and reporting COVID-19 cases. This memorandum is to inform you that, effective immediately and until further notice, OSHA is exercising its enforcement discretion to NOT cite employers for violations of 29 CFR Part 1904 for failure to record COVID-19 cases or to report COVID-19 fatalities and…...

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When tours or demos go bad (Niederstedem Tank Explosion – EPSC Learning Sheet April 2026)

CO2 as solid particles can cause electrostatic discharge! In September 1953, an aircraft fuel storage farm was taken into use in Niederstedem, Germany. The automatic fire extinguishing system, which used CO2, was demonstrated to visitors on the roof of the storage tank. The tank containing an explosive mixture suddenly ignited and exploded. 29 people lost…...

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EPA RMP citations @ chemical manufacturer (Phosgene & $75K)

Respondent has a chemical manufacturing process at the Facility, meeting the definition of “process”, as defined by 40 C.F.R. § 68.3. The Facility experienced an accidental release of phosgene on December 4, 2023. Phosgene is a substance listed pursuant to Section 112(r)(3) of the CAA in 40 C.F.R. § 68.130. From the time Respondent first…...

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