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Three semantic patterns surfaced as statistically significant this month: • **Night-shift PPE drop-off** at Plant 12 — eye-protection compliance falls from 96% (day) to 82% (night) on press lines. • **Recurring hot-work permit overrun** at Tower 3 — 11 instances exceeded valid window by >30 min, clustered around contractor CG-118. • **H₂S micro-excursions** at North Refinery Unit-3 — sub-alarm spikes correlated with NW wind shifts >12kt. None are documented in current SOP risk registers. Risk Intelligence Agent recommends elevating to formal hazards.