Hierarchy of Controls
3 pieces, each argued from primary sources and each handing you something you can use on Monday.
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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.