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As owner of Sierra Environmental for 8 years, Luis Sierra’s safety responsibilities include: supervising asbestos abatement projects, ensuring OSHA/EPA compliance, training crews, enforcing PPE use, conducting site inspections, monitoring air quality/exposure, developing safety plans, and managing emergency responses. Safety-related activities: on-site hazard assessments, containment setup, decontamination procedures, waste disposal oversight, record keeping, and direct field supervision of crews.