A Phase II Environmental Evaluation is an intrusive investigation to identify and determine the nature and extent of any contamination present. It normally follows a Phase I investigation where site conditions or history of use of a site and/or neighbouring lands, or age of facility suggest potential for impaired conditions. These investigations involve advancing boreholes and/or soil test pits to provide a representative coverage of the area of concern. Groundwater monitoring wells may also be installed to analyse water quality and possible contaminants. Subsurface conditions including soil stratigraphy, groundwater evaluations, flow, direction, and gradient, as well as depth to bedrock may be determined during such investigations. Based on the results obtained during the subsurface investigation programs as well as other available information, site sensitivity assessment is conducted in order to identify legislation or guideline requirements.
Laboratory characterization of soil, groundwater, air and materials is completed in addition to assessment of the physical properties of subsurface environments and contaminants. Chemical constituents are analysed and compared to applicable Provincial and/or Federal Environmental Regulations and Guidelines. If exceedances are found, zones of contaminated soils or groundwater are delineated and quantified and possible effects on human health and safety and the natural environment are researched as well as potential migration pathways, possibility of offsite impacts and chemical stability.
ü Intrusive Investigations
ü Monitoring Wells
ü Materials Sampling
ü Laboratory Analyses/Interpretation
ü Recommendations For Remedial Actions
Above: Borehole Drilling Above: Test Pit Investigation Above: Tripod Drilling