Hierarchy of Controls
10 pieces, each argued from primary sources and each handing you something you can use on Monday.
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The Floor WalkerEvery exhaust hood has a design velocity. Most plants cannot produce the last measured one.
For each local exhaust hood on site, ask for two numbers: the design capture or face velocity, and the last measured value at the point where the contaminant is generated. If the only record is that the fan was running, the control is unverified.
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The SkepticThe risk matrix is not a measurement
Strip the scores off ten hazards and have two competent people rescore them alone. If more than a third land on opposite sides of your action threshold, the matrix is not deciding anything.
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The Floor WalkerSame-Level Falls Are a Design Output, Not a Lapse
Plot last year's same-level fall cases by location, shift and task instead of by person. If they cluster, the cause is a surface, a drain, a light level or a route, because carelessness does not cluster by location.
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The SkepticThe corrective action closure rate is not a safety metric
Sort last year's closed corrective actions by level on the hierarchy of controls: if most sit at training, procedure or signage, the CAPA system is producing paper, and the recurrence data will show it.
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The Floor WalkerThe PPE Matrix Is Not the Hazard Assessment
A site that can produce its PPE matrix but not the dated written certification behind it has documented a purchasing decision, not a hazard analysis.
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The Floor WalkerThe Trigger Height Is a Classification, Not a Measurement
In United States workplaces the height at which fall protection becomes mandatory is set by which OSHA standard classifies the task, so any program that publishes one site-wide trigger height is wrong for part of its own work.
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The ScoutPsychosocial Risk Is Becoming a Hazard, Not a Programme
If no psychosocial finding at your site has ever changed how work is designed, staffed or scheduled, you are running a wellbeing programme and not a hazard control.
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The Floor WalkerA Decade of 95 dBA: What a Flat Dosimetry Trend Actually Proves
OSHA's hierarchy of controls puts engineering fixes above earplugs for a reason: a hearing conservation program that hits 100 percent PPE compliance and still logs the same 95-plus dBA reading year after year isn't preventing hearing loss, it's documenting exposure at high resolution.
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The Floor WalkerThe saw is still cutting, so everyone assumes the dust control is still working
Table 1 protection is conditional on operating and maintaining the control as the manufacturer specifies. An empty water tank or a loaded filter removes the protection without stopping the tool, and nothing on the job tells you it happened.
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The Skeptic'Retrained the employee' is the corrective action that corrects nothing
Closing an incident with counseling and retraining treats a system failure as a personal one, and it leaves every condition that produced the incident exactly where it was.