O'Connor Associates is an employee-owned multi-disciplinary Canadian environmental consulting firm established in 1979. Using state-of-the-art technologies, our staff provides comprehensive environmental expertise throughout Canada. Our vision is to provide clients with innovative but practical solutions to environmental problems in a variety of settings and industries. The services we provide include Phase I, II and III Environmental Site Assessments; soil, groundwater and surface water monitoring and remediation; site decommissioning; environmental auditing; risk assessment and management; contaminant transport modelling; spill response and investigation; and air quality monitoring.