Environmental Site Assessment (ESA) is a process of evaluating the potential environmental liabilities associated with a particular property. In Ontario, Environmental Site Assessment is a crucial part of the land development process, especially for those properties that have a history of industrial or commercial use.
An Environmental Site Assessment (ESA) in Ontario is conducted in accordance with the Ontario Regulation 153/04, also known as the “Records of Site Condition” regulation. This regulation sets out the requirements for the completion of environmental site assessments and the issuance of a Records of Site Condition (RSC).
The purpose of an Environmental Site Assessment in Ontario is to identify and assess the potential environmental liabilities associated with a particular property. The assessment typically includes a review of historical land use records, a site inspection, and sampling and analysis of soil, groundwater, surface water, and air. The assessment also considers any potential risks to human health and the environment and evaluates whether remedial measures are necessary.
There are three types of Environmental Site Assessments in Ontario:
1. Phase I Environmental Site Assessment: This is a preliminary assessment that involves a review of historical records and a site inspection to identify any potential environmental liabilities associated with a particular property.
2. Phase II Environmental Site Assessment: This involves sampling and analysis of soil, groundwater, surface water, and air to evaluate the presence and extent of contaminants on the property.
3. Phase III Environmental Site Assessment: This involves the development and implementation of a remediation plan to address any identified environmental liabilities.
In Ontario, the completion of an Environmental Site Assessment is required for a variety of purposes, including:
1. Land development and redevelopment: Environmental Site Assessments are required for any property that is being developed or redeveloped for commercial or industrial use.
2. Property transactions: Environmental Site Assessments are often required as part of the due diligence process for property transactions to assess the potential environmental liabilities associated with the property.
3. Compliance with regulations: Environmental Site Assessments may be required to demonstrate compliance with environmental regulations or to obtain permits for activities that may have an impact on the environment.
The completion of an Environmental Site Assessment in Ontario is typically conducted by a qualified environmental consultant. The consultant must meet specific qualifications and experience requirements as set out by the Ontario Ministry of the Environment, Conservation and Parks. The consultant must also follow the requirements set out in the Ontario Regulation 153/04, which includes the preparation of a Records of Site Condition if necessary.
In conclusion, Environmental Site Assessment is an essential part of the land development process in Ontario. It helps to identify potential environmental liabilities associated with a particular property and ensures that appropriate measures are taken to protect human health and the environment. It is important to engage a qualified environmental consultant to ensure that the assessment is conducted in accordance with the regulations and that any necessary remedial measures are taken.