For soil decontamination in Laval, work with an excavation company with deep expertise in the field. S.A.P. EXCAVATION has specialized in soil rehabilitation for 20 years.
Our work complies with Ministry of the Environment standards, whether for ex-situ extraction and transport of contaminated soils and materials, or for in-situ storage and treatment.
We hold a specialized excavation and general contractor license from the Régie du bâtiment.
This allows us to safely dismantle contaminated or non-contaminated buildings and infrastructure and excavate even beneath foundation footings (with underpinning).
Our team strictly follows the environmental engineer’s directives and plan to ensure lasting results.
We track contaminated soil movement efficiently using the Ministry of the Environment’s traceability tool (Traces).
Our backfilling and compaction methods provide long-term ground stability without differential settlement.
Land contaminated beyond acceptable Ministry of the Environment thresholds loses both its legal compliance and market value. It cannot be used for any purpose.
Before buying or selling potentially contaminated land, or when ceasing or changing industrial activities, a soil characterization study is mandatory.
Soil analysis and decontamination are also required during excavation, grading, construction, expansion, or demolition.
In the event of an accidental hazardous material spill, the responsible company is legally obligated to carry out soil decontamination.
Before any soil decontamination work begins, the environmental expert gathers the site’s history from neighbors and previous owners.
They collect soil samples from various depths and locations to be analyzed in a laboratory.
This reveals the type and concentration of contaminants. Groundwater samples are also analyzed to assess contamination.
If contamination exceeds regulatory limits, a decontamination plan will be drafted.
Can be used without restriction.
Contamination is at an acceptable limit for residential, recreational, or institutional use.
Contaminated, but suitable for non-residential zones such as commercial and industrial areas or low-sensitivity recreational use. Restoration is required for residential, institutional, or sensitive recreational uses (e.g., parks, schools, daycares).
Must undergo corrective action.
Must be treated before being disposed of at an authorized site.
Excavation of soil up to 12 feet deep or more, including underpinning measures when digging beneath buildingv foundations.
Transport of excavated soil by dump truck to an on-site treatment area or temporary storage in piles on platforms for later on-site decontamination.
Immediate loading into our dump truck and transport to an off-site disposal, landfill, or treatment facility.
Backfilling of the excavated area using borrow pit soil and/or treated soil.
Site restoration after backfilling with compliant soil, including leveling, asphalt paving, or sod installation.
Temporary piles of contaminated materials may be stored on site while awaiting characterization by the environmental engineer, in-situ decontamination, or shipment to a treatment facility.
These piles are typically covered to prevent water infiltration and the release of toxic dust. Impermeable membranes may be installed underneath stored soil to protect the environment.
Excavation, transport, and handling of soil on site are carried out carefully to avoid contaminating clean soil or materials.
Our objective is to prevent increasing contamination levels or mixing contaminated soil with compliant soil.
We also take necessary precautions to avoid the release of airborne contaminants from the soil and materials.
In-situ decontamination involves excavating contaminated soil and transporting it to a treatment facility. Once treated to acceptable levels, the soil may later be reused as backfill.
When soil is too contaminated to be treated effectively on-site, we safely excavate and transport it (along with excessively contaminated materials) to an authorized treatment facility for processing or disposal.
Excavation below the water table is possible but may be more costly. We can also excavate beneath building foundation slabs with proper underpinning measures in place.
In both cases, groundwater pumping may be necessary to ensure proper control during the process.
If groundwater is contaminated, our subcontractor (a specialized company) will pump and store it in tanks for on-site treatment before discharge into the municipal sanitary system, stormwater network, or infiltration zones.
If on-site treatment is not possible, the water will be transported to an authorized treatment facility.
For soil decontamination services in Laval, contact the S.A.P. EXCAVATION team at (450) 414-1414 or email us at info@sapexcavation.com.
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