The historical use of the site and the materials used and produced on site will guide the assessment strategy and type of sampling and chemical analysis to be done. Often the assessment begins with preparation of a Phase I Environmental Site Assessment. Once a site is suspected of being contaminated there is a need to assess the contamination.
In Canada, most standards for remediation are set by the provinces individually, but the Canadian Council of Ministers of the Environment provides guidance at a federal level in the form of the Canadian Environmental Quality Guidelines and the Canada-Wide Standards|Canada-Wide Standard for Petroleum Hydrocarbons in Soil. The European Union (EU) is rapidly moving towards Europe-wide standards, although most of the industrialised nations in Europe have their own standards at present. A set of standards used in Europe exists and is often called the Dutch standards. In the United States, the most comprehensive set of Preliminary Remediation Goals (PRGs) is from the Environmental Protection Agency (EPA) Regional Screening Levels (RSLs). Remedial action is generally subject to an array of regulatory requirements, and may also be based on assessments of human health and ecological risks where no legislative standards exist, or where standards are advisory. The harbor is contaminated with polychlorinated biphenyls (PCBs).Įnvironmental remediation deals with the removal of pollution or contaminants from environmental media such as soil, groundwater, sediment, or surface water. JSTOR ( April 2021) ( Learn how and when to remove this template message)ĭredging contaminated sediment in New Bedford Harbor, Massachusetts.
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