Phase II Environmental Site Assessments


What is a Phase II Environmental Site Assessment (ESA)?

A Phase II ESA is an intrusive assessment that includes quantitative sampling and subsequent laboratory analyses of samples taken from a property. Sampled material may include; soil, groundwater, building materials, air, and sediments. The Phase II ESA is used to evaluate whether contaminants of concern are present and to define the approximate extent of the area affected.
 
Purpose

A Phase II ESA is designed to address the findings of a previously completed Phase I ESA where “Areas of Potential Environmental Concern” (APECs) were identified on a property. Please click here for more information on Phase I Environmental Site Assessments.
 
APECs are areas of a property where actual or potential for contamination exists as a result of Potentially Contaminating Activities (PCAs) which were identified as occurring or as having occurred on the property or in the surrounding area. Each PCA will have specific “Contaminants of Concern” (COCs) associated with it that must be investigated if an APEC was interpreted to exist.
 
Background Information

In Ontario there are two main standards under which Phase II ESAs are conducted and evaluated. The first is the Canadian Standards Association (CSA) document Z769-00 dated March 2000 and reaffirmed in 2013. CSA Phase II ESAs are typically requested to support the sale of a property or for financing purposes.  The second standard is Ontario Regulation 153/04, made under Part XV.1 of the Environmental Protection Act. O.Reg. 153/04 Phase II ESAs are typically requested to support the redevelopment of a property to a more sensitive use and the filing of a Record of Site Condition (RSC).
 
The specific standard to which the Phase II ESA is conducted will depend on the client’s individual needs and intentions.
 
Generally speaking, the analytical results from most environmental samples will be compared to the Ministry of the Environment, Conservation and Parks’ (MOECP) “Soil, ground water and sediment standards for use under Part XV.1 of the Environmental Protection Act”, dated July 1, 2011.
 
Process

Planning
Prior to commencing with a Phase II ESA initial planning is undertaken to define a Scope of Work and identify target areas to be investigated. Target areas are chosen based on the locations of APECs identified as part of the Phase I ESA. As part of the planning phase both public and private underground utility locates must be completed.
 
Data Collection
In general, a Phase II ESA will include the mobilization of a drill rig to a property to drill boreholes for the purposes of collecting soil samples. Upon completion of the boreholes, some or all of the boreholes will be constructed as groundwater monitoring wells. Soil samples obtained will be screened in the field for visual, olfactory, and headspace measurements using a Photoionization Detector. Samples selected for analysis will be submitted to an appropriately qualified third party analytical laboratory. Analyzed chemical compounds will be based on the COCs identified in the Phase I ESA.
 

Following the installation of groundwater monitoring wells, a return visit to the property will be required to develop the wells, complete an elevation survey, measure groundwater levels, and collect groundwater samples. Groundwater samples selected for analysis will be submitted to an appropriately qualified third party analytical laboratory. Analyzed chemical compounds will be based on the COCs identified in the Phase I ESA.
 
Report
Following completion of the site visit and records review, the information will be assessed and compiled into a Phase II ESA Report. The reports are structured around the standards used, and include an executive summary which presents the interpretation of the findings and relevant conclusions and recommendations.
 
JFM’s team of highly qualified professionals is well versed in the conduct of the entire suite of Phase I, II and III Environmental Site Assessments, and to all applicable legislative and industry standards. Our work is relied upon by numerous investor groups, financial institutions, governments, and a wide variety of privately and publicly held industrial and commercial clients.
 
If you would like more information please feel free to contact us or fill out a no obligation consultation form.