CERTIFICATIONS& TRAININGS
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Certified Occupational Safety Specialist (COSS)
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OSHA HAZWOPER Supervisor Training (29 CFR 1910.120)
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CDPH Title 17 Lead Supervisor
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OSHA HAZWOPER 40-Hour Training (29 CFR 1910.120)
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OSHA HAZWOPER 8-Hour Refresher Training (29 CFR 1910.120)
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Worker Incident Prevention System (WIPS)
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OSHA Competent Person [29 CFR 1926.32(f)]
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Electrical Safety
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Behavior Based Safety Developer
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American Red Cross CPR/First Aid
AFFILIATIONS
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OSHA Outreach Trainers Group
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Environmental Health & Safety Professionals
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OSHA Discussion & Support
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American Society of Safety Engineers (ASSE)
As a corporate EH&S professional, Terry Dussault, Founder of Yellowknife Consulting Services, has been Southern California's top safety expert for over 30 years. Terry specializes in preparation and implementation training programs related to OSHA, CAL OSHA, EPA, and DOT regulations.
Terry has an extensive background in environmental compliance on a variety of projects including ones impacted with contamination from prior manufacturing and distribution operations.
Before founding Yellowknife Consulting Services, Terry developed extensive experience as an EH&S professional supporting environmental remediation projects, manufacturing facilities, and the aerospace industry—expertise that now drives the practical, field-tested solutions delivered to Yellowknife clients.
PROJECT EXPERIENCE
Exide Residential Cleanup of 1100 Properties with Lead-Impacted Soil
Vernon, CA
Yellowknife Consulting Services founder delivered environmental health and safety oversight for a State-funded cleanup of lead-impacted residential properties linked to a former battery recycling facility. The team developed and implemented a site-specific Health and Safety Plan, including excavation, waste handling, and air monitoring protocols to protect workers and residents from airborne lead exposure. Despite the challenges of onboarding and training over 100 workers and operating within highly constrained residential spaces, the project was executed safely, efficiently, and in full regulatory compliance.
Bioremediation of Perchlorate and VOCs at the Former Bermite Facility
Santa Clarita, CA
Yellowknife Consulting Services provided comprehensive safety oversight for the construction of a 5-acre treatment pad and installation of underground piping, while supporting the safe operation of an on-site treatment system used to mix and remediate perchlorate-impacted soils with specialized amendments. Daily operations were closely monitored to manage complex hazards, including deep excavations, steep slopes, heavy equipment operations, biological risks, changing site conditions, adverse weather, sensitive species, and potential exposure pathways. Over the course of five years, approximately 1.2 billion pounds of soil were successfully treated with zero OSHA recordable incidents, despite challenges such as coordinating traffic control for up to 30 rock trucks operating simultaneously in rugged terrain.
Saugus Aquifer Groundwater Treatment Plant- Former Bermite Facility
Santa Clarita, CA
Yellowknife Consulting Services provided ongoing health and safety oversight during the installation of a large-scale Groundwater Pump and Treat System (GWPTS). Safety observations and inspections were conducted throughout the project to ensure compliance and identify potential risks. Key challenges included trenching across remote mountaintop terrain and along steep slopes for the installation of groundwater conveyance piping, requiring specialized equipment and targeted worker training. Additional high-risk activities included trenching operations beneath an active BNSF railroad. Near-miss incidents were documented and investigated, with lessons learned reinforced through daily tailgate safety meetings. All work was completed successfully, with zero incidents.
Goodyear Airship Operations Facility Maintenance and Development, The Goodyear Tire & Rubber Company
Carson, CA
Provided Health & Safety management for the site improvement project at the Goodyear Airship Operations Facility to make way for the new Wingfoot Two airship and a 9-story inflatable hangar on a 28-acre site, situated on a former landfill. The project was divided into two scopes of work: (1) Environmental Maintenance and (2) Airship Development. Major components of the project include irrigation system demolition, abandonment, and new installation; mass grading, placement of geotextile and geomembrane; three new water retention basins; cut and cover utility trench and pipe and conduit installation (excavation for 2,800 linear feet of trenching); vapor mitigation system and methane detection and alarm system installation; and site restoration. Mr. Dussault was responsible for all HSE field representatives and subcontractors who supported the field engineering solutions to Goodyear and ensuring safe compliance with strict city and county mandates for the former landfill site.
Above-Ground Storage Tank Decontamination & Demolition, Goodman
Santa Fe Springs, CA
Provided Health & Safety program management for the decontamination and demolition of a large capacity aboveground storage tank, located on a former oil refinery site undergoing cleanup and preparation for commercial redevelopment. Previously, the 52-acre property contained 20 rusted oil tanks filled with wastewater that produced hundreds of complaints due to their foul odor. Mr. Dussault managed the team that treated, solidified, and removed residual liquids & sludge within the main slop tank interior. With the work defined as confined space operation, Mr. Dussault created the health and safety protocols to ensure compliance with Level B safety measures, such as positive pressure supplied air respirator and emergency response retrieval equipment. Among Mr. Dassault’s responsibilities were compliance with the local fire department and air district permitting agency for a site-specific odor control system, as well as a site-specific safety plan and a hazard analysis form for each activity. It was a successful and incident-free project.
Oxy Petroleum Bolsa Chica Wetlands Project
Huntington Beach, CA
Provided onsite Health and Safety daily during excavation and disposal of soil impacted with petroleum hydrocarbons and metals. Utilized sheet Pyle shoring to a depth of 30’ feet with no effect to a nearby high-pressure fuel pipeline. Aside from ensuring compliance with OSHA and client safety requirements, Dussault obtained the proper permits and maintained ongoing compliance with the State Fish and Wildlife Agency, SCAQMD, and SARWQCB. Through a seasonal approach, the project was completed over several years without causing adverse effects to sensitive species. The project also went without workers' injuries.
Gulfstream Facility Decommissioning Project
Long Beach, CA
For two phases of the project, Mr. Dussault developed the site-specific Health and Safety Plan and provided ongoing consulting services. The first step in the project was to clean the interior paint booth ducts, followed by an excavation and remediation of soil that was contaminated with jet fuel.
