42 Quality assurance and quality control services for others; hazardous waste management in the nature of emergency response services to oil, maritime and chemical spill control and clean-up; hazardous waste management services in the nature of chemical, clean-up, control and removal as a result of train derailment, truck accidents, fires, asbestos chemical transfers, pipeline and tank ruptures and natural disasters; educational services, namely, conducting personnel training and offering seminars in the fields of hazwoper, confined space entry, basic health and safety, cpr/first aid, vcra/cercla, lockout/tagout safety, spill response, hazard communication-hazcom, fire prevention, driving safety, accident prevention, right-to-know and respiratory protection as well as providing the occupational safety and health association-osha 40 hour, 24 hour, 8 hour supervisory and 8 hour refresher courses; and hazardous waste remediation services, namely facility closures, super fund comprehensive environmental response, compensation and liability act sites, potential responsible party groups, landfill closures, solid waste management unit and resource conservation and recovery act sites, slurry/cut-off walls, sludge dewatering, rcra caps and liners, sludge fixation, toxic substances control act sites, grout curtains, stabilization, energy conservation and recovery act sites, solidification, buried drum sites, waste minimization, and radioactive sites