Environmental Site Assessment Details

Phase 1 Environmental Site Assessment

A Phase 1 Environmental Site Assessment is also referred to a Stage 1 Preliminary Site Investigation for Provincial audiences if rezoning or redevelopment of the property is necessary.

The objective of a Phase 1 Environmental Site Assessment is to identify all possible environmental risks or concerns associated with a property. If risks are found, then a Phase 2 Environmental Site Assessment would be conducted to confirm and quantify these risks.

A Phase 1 Environmental Site Assessment consists of the following scope of work:

  • A review of current information and historical records (e.g. land and title documents, government records, and aerial photographs)
  • The completion of a visual site inspection to identify potential concerns (for example an underground storage tank or evidence of a spill)
  • Interviews with knowledgeable persons (typically the tenants, owner, and regulatory agents)
  • A report of findings, conclusions and recommendations, complete with supporting documentation will be submitted to the client.

Here are some examples of Phase 1 Environmental Site Assessments and their outcomes:

  • Example 1 – By examining the historical records and aerial photographs we determine that a gas station used to be operating adjacent to the property in question. The storage of petroleum products nearby would be considered a large environmental risk and therefore would require a Phase II Environmental Assessment to confirm or deny the existence of a contamination from the old gas station.
  • Example 2 – After performing a site visit to a residential property, evidence of an underground oil or gas storage tank is found. Further investigation by a Phase 2 Environmental Site Assessment would be recommended to determine if there was a tank located on the property. If a tank was found, the Phase II would also determine if there was any contamination and its relative extent.
  • Example 3 – After performing a historical investigation, records reviews, site visits, interior/exterior observations, and interviews no environmental risks are found. A final report would be generated detailing that no risks were found and that the transfer of the property was free of environmental liabilities.

JMB Environmental Ltd. conducts comprehensive Phase 2 Environmental Site Assessments which meet CSA and CMHC guidelines. JMB also conducts Stage 1 Preliminary Site Investigations as per British Columbia regulatory requirements.

Phase 2 Environmental Site Assessment

A Phase 2 Environmental Site Assessment is also referred to a Stage 2 Preliminary Site Investigation or a Detailed Site Investigation for Provincial audiences if rezoning or redevelopment of the property is necessary.

The objective of a Phase 2 Environmental Site Assessment is to confirm and quantify any possible contamination outlined in the Phase 1 Environmental Site Assessment.

The typical scope of work may include:

  • Collection of soil, groundwater, surface water, sediment and/or vapour samples;
  • Chemical analysis of samples for relevant parameters;
  • Surveying the site and establishing groundwater flow direction;
  • Determining the appropriate criteria to which the results must be compared;
  • interpretation of data, possibly including modeling, qualitative risk assessment, or development of a Conceptual Site Model;
  • preparation of a clear, comprehensive report documenting the findings and presenting a conclusion regarding the environmental condition of the site.

JMB Environmental Ltd. conducts a superior sampling and analysis service for soils, groundwater, surface water and industrial effluent. We provide accurate measurement and identification of contaminants including horizontal/vertical delineation and site contaminant mapping.


Phase 3 Remediation

Contaminated site remediation involves the removal of organic or inorganic contaminates from the soil and/or ground water. JMB Environmental Ltd. has conducted many projects dealing with the removal of petroleum hydrocarbon contaminates in soil using oil-consuming micro-organisms. Remediation activities are normally conducted over a period of months with the aim of reducing soil contamination to levels which meet the British Columbia Contaminated Sites Regulation up to BC Reg. 239/2007.

JMB Environmental Ltd. provides consulting services for the removal of underground and above ground storage tanks from residential and commercial properties. Underground storage tank removal and decommissioning may include:

  • Removal of hydrocarbon products/water from the tank and subsequent disposal of contents
  • tank cleaning
  • tank excavation and removal of tank from ground
  • chemical testing of the tank nest
  • decommissioning of the tank and transport from the site for disposal

Above ground storage tank removal and decommission is similar to the above process but excavation of the tank is not normally required.