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REMEDIAL INVESTIGATIONS AND FEASIBILITY STUDIES

The purpose of a remedial investigation is to evaluate the existence or extent of environmental impacts at a property.

The objectives of a remedial investigation can include:

  • Evaluating sources of environmental contamination
  • Characterizing the extent and magnitude of environmental contamination
  • Assessing potential pathways for migration of contamination to sensitive receptors
  • Determining a scope of remedial action

Environmental media typically evaluated during site investigations include groundwater, surface water, soil, sediment, soil gas, and air.  Selection of appropriate investigation methods, sample locations, number of samples, laboratory analytical methods, and data interpretation techniques are critical to the completion of investigations.

Campbell Environmental Group will typically review data readily available in regulatory and municipal files, review previous investigation reports, and conduct interviews as part of an initial investigation. This background data review will assist with the decision of whether additional investigation is warranted.

Subsurface cross section

Campbell Environmental Group will typically review data readily available in regulatory and municipal files, review previous investigation reports, and conduct interviews as part of an initial investigation. This background data review will assist with the decision of whether additional investigation is warranted.

CEG is experienced with a wide range of investigative methods and tools that are suitable for varying levels of complexity in site conditions and project objectives.  Methods and tools may include:

  • Installing and sampling monitoring wells and or utilizing existing wells;
  • Testing environmental media in the field using portable analytical equipment;
  • Evaluating aquifer characteristics through recovery and pumping tests; and
  • Supervising geophysical surveys to identify potential migration pathways and identify potentially buried contaminant sources such as underground storage tanks or drums

The end result of a site investigation is the development of a conceptual site model that consists of a three-dimensional understanding of contaminant sources, sensitive receptors, and contaminant fate and transport mechanisms. Through this understanding of the site, an evaluation can be made regarding current and future risks to human health and the environment.

A feasibility study evaluates the ability of select remedial alternatives to control human health and environmental risk posed by contamination. The selected alternatives are analyzed on the basis of the following five criteria:

  • Overall protection of human health and the environment
  • Long-term effectiveness and permanence
  • Reduction of toxicity, mobility, or volume through treatment
  • Short-term effectiveness
  • Implementability
  • Cost

Remedial Investigations and Feasibility Studies Project Example: Gasoline Service Station

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Campbell Environmental Group

173 Gray Road

Falmouth, ME 04105

(207) 253-1990 f(207) 253-1988

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