SENES Consultants


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Environmental Engineering and Scientific Consulting

Email Address
Unit 12,
121 Granton Drive,
Richmond Hill,
L4B 3N4,
Fax Number

SENES Consultants is a Canadian-owned company that provides comprehensive environmental engineering and scientific services. 

Environmental engineering and services for the mining industry

Our technical expertise includes environmental audits, due diligence, and liability assessments; environmental impact assessments; ARD and mine waste management including geochemistry assessment and prediction; water management and treatment; and closure planning: air quality, radioactivity, risk assessments; as well as industrial hygiene and other related activities. 

Formed in 1980, SENES has offices across Canada, including a head office in Toronto, as well as in the US and India. We also have project experience throughout North and South America, the Caribbean, Africa, Australia, Europe, Asia, the Middle East and the Far East. SENES is ISO 9001 compliant.

Integrated environmental management

SENES offers a broad variety of services that are relevant to environmental management within the mining industry. Our unique mix of scientific, engineering and field staff allows us to provide fully integrated services, including:

Wismut, Germany.
Lingan, Nova Scotia (Canada).
Blanket Mine, Zimbabwe.
Kumtor Mine, Kyrgyzstan.
Giant Mine, Northwest Territories (Canada).
  • Baseline environmental studies
  • Conceptual mine planning and strategy development
  • Environmental assessment and regulatory permitting
  • Environmental audit, assessment and management review
  • Acid mine drainage prediction, mitigation and treatment
  • Human health, ecological and facility risk assessment
  • Geochemical, aquatic, atmospheric and environmental pathways modelling
  • Radioactivity assessment
  • Waste management strategies development, including solid waste, tailings, waste rock and hazardous wastes
  • Monitoring and data management program development
  • Decommissioning plan development, review and liability analysis

Our expertise in the above areas has been applied throughout all phases of mining developments around the world. A particular strength of SENES is the design and use of ‘state-of-the-science’ predictive modelling tools that help to determine key performance characteristics and long-term mitigation strategies.

Through the use of these tools and our extensive practical experience, SENES has assisted clients to develop optimum strategies for site-specific environmental management.

Environmental mining consultancy

SENES’ reputation as a leading environmental consulting firm is evidenced by the fact that we have been called on to assist in the resolution of challenging, high-profile environmental issues around the world. A few examples include:

  • Carrying out the resumption audit and industry / regulator workshops following the Omai gold mine dam failure in Guyana
  • Advising INCO on the closure plan for a one-billion- tonne tailings area covering some 20km² near Sudbury
  • Peer reviewing the health risk assessment for the clean-up of the Boliden-Apirsa tailing dam failure in Spain
  • Independently reviewing the Kumtor gold cyanide transport accident in the Kyrgyz Republic on behalf of the International Finance Agency and the European Bank for Reconstruction and Development
  • Serving as advisors on risk and radioactivity to the United States National Mining Association
  • Providing strategic advice to the United Nations, World Bank, IAEA, UNSCEAR, and other internationally respected organisations

Experienced environmental consulting for the mining industry

The strength of the SENES team lies in the cumulative experience of our staff who have a track record of developing effective solutions to challenging, and often complex problems. 

Collectively, the SENES group of companies employs more than 90 professionals in Canada and 200 world wide. The majority of our staff hold post-graduate degrees. Recognised as leaders and innovators within their respective fields, our pool of professionals includes engineers (e.g. civil, mining, chemical, geological and geotechnical), environmental scientists (e.g. physicists, biologists, toxicologists, geochemists, statisticians, hydrologists, water, soil and air quality specialists), and technical support staff. In 2010 SENES was named the Canadian Environmental Employer of the Year.


  • Aurora Gold Project

    The Aurora gold project was developed by Guyana Goldfields (GGL) is located in Cuyuni-Mazaruni, Guyana, South America.

  • Lake St Joseph Iron Ore Project, Ontario

    The Lake St Joseph Iron Ore Project, comprised approximately 13 adjoining mining claims covering an area of approximately 2,592ha, is located 100km north-east of Sioux Lookout and approximately 80km south-southwest of Pickle Lake in Ontario, Canada.

Unit 12
121 Granton Drive
Richmond Hill
L4B 3N4

Email address