the earth

Treatment of contaminated soil, recovery of hazardous materials, water treatment.

The process

RSI Environmental is a processing centre that collects, treats and recycles contaminated soil as well as residual hazardous materials (RHM), contaminated water and residual material. Our technology uses thermal desorption, a process that transfer contaminants from one phase to another, so it could be reused for other purposes.

Our mission is framed from a sustainable development perspective. By reversing soil contamination with our process, we believe we contribute to a better future for the forthcoming generations.


Thanks to the use of successful technologies, RSI Environmental succeeds in destroying persistent contaminants like PCBs, PFAS, HCBs, dioxins, furans, pesticides, organochlorine compounds and more.

Soil treatment

When the contaminated material arrives at the plant, you receive a document certifying that RSI Environmental accepts full responsibility of the hazardous waste. Once it has been processed, we give you a Certificate of Destruction and Decontamination in accordance with due process.

Storage capacity

Our controlled atmosphere storage facilities allow us to keep more than 70-000 ton of hazardous waste at a time. Moreover, we offer an environmental cleanup service in case of hazardous waste spill.


Safe management

The thermal desorption process used by RSI Environmental is recognized as being one of the best way to treat contaminated soil and other hazardous waste.

Certifications and authorizations


RSI Environmental, located in Saint-Ambroise, serves clients throughout Quebec, Ontario and the United States. It holds more than 40 certificates of authorization and a permit issued by the Ministry of Environment and Climate Change. The certificates of authorization are valid as long as the company respects the environmental monitoring, testing and requirements of the Ministry of Environment.

More importantly, these certificates of authorization allow RSI Environmental to effectively treat all organic contaminants such as: petroleum hydrocarbons, PCBs, PFAS, PAHs, chlorophenols, pesticides, dioxins and furans, chlorinated VOCs, PFOS, etc., as well as wastewater. With this permit, RSI Environmental is able to receive and recycle residual or granular hazardous materials particularly oil residue and granular material contaminated with, for example, PCBs. The MDDELCC regularly inspects the facility and its operations of environmental cleaning in addition to the weekly reports of all operational data of the treatment center.

RSI Environmental also submits an annual report to Ministry of Environment specifically outlining a registry of all materials received and treated, the operational parameters, continuous stack emissions, and the traceability of the soil before, during and after undergoing environmental cleaning and treatment. The company is required to perform and pass annual compliance testing of its equipment to ensure the safety of its employees and the environment.

RSI Environment maintains a very strict environmental monitoring procedure. In fact, the majority of the emissions standards present in the Clean Air Regulations were based on the results of RSI Environmental’s treatment centre in Saint-Ambroise. The facility is equipped with an emissions monitoring system which detects and records the concentration of the following elements: NOx, CO, CO2, SO2, HCl, O2 and particulate matter. The automatic shutdown of the process supply ensures that it is controlled safely.

Normally, external sampling firms verify the integrity of groundwater from piezometers at the facility’s perimeter to ambient air by sampling 400 meters in the direction of prevailing winds. Surficial soil samples are also collected in the area surrounding the treatment centre.

RSI Environmental complies with environmental regulations, and is also one of the only soil treatment and environmental cleaning centres in North America to have the ISO 14001 certification. Having this certification allows the company to continually improve its equipment and processes to help the environment.
The facility is also monitored by the Canadian Food Inspection Agency (CFIA) to ensure the safety of the soil coming from outside of Canada. RSI Environmental is certified by the Autorité des marchés financiers (AMF), and is regularly audited by clients or competitors who require the specialized services offered.
RSI Environmental has an active health and safety committee to minimize the risk of accidents for workers and suppliers, as well as an emergency procedure that is updated each year.

Technological and Regulatory Monitoring 

Always with the objective of being on the lookout for technological and regulatory watches, RSI Environmental is a member of several groups and organizations. The company works in partnership with various organizations :

Conseil des entreprises en technologies environnementales du Québec (CETEQ)
The Quebec Business Council on the Environment (CPEQ)
Réseau Environnement
Chambre de commerce et d’industrie Saguenay-Le Fjord
Transfer Environment and Society
Les Produits B.C.C.
Société d’aide au développement des collectivités (SADC) du Fjord
MRC du Fjord-du-Saguenay
Régie des matières résiduelles (RMR) du Lac-Saint-Jean
Chaire de recherche en éco-conseil de l’Université du Québec à Chicoutimi (UQAC)
Santé publique
Department of Sustainable Development, Environment, and Climate Change (MDDELCC)
Department of Energy and and Natural Resources(MERN)
Transition énergétique Québec (TEQ)
Investissement Québec
Fondaction CSN
Fonds régional de solidarité FTQ Saguenay-Lac-Saint-Jean
Desjardins Capital de risque
Canada Economic Development

Our certifications

Autorité des marchés financiers
Canadian Food Inspection Agency (CFIA)
Attestation de réduction de Gaz à effet de serre

At a time when all citizens are concerned about the quality of environment, RSI Environnement safely decontaminates and processes contaminated soils, then transforms them into clean and reusable soils.
80 Melezes Street
Saint-Ambroise (Québec)
G7P 2N4
1 800-676-7849
dropheart-pulseleafchevron-downchevron-down-circle linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram