Planning a Brownfield Cleanup
Avoid a "one size fits all" approach when considering a contaminated site remediation.
Location, Location, Location
Not all contaminated sites are the same. Some will be particularly well-suited for redevelopment because the type and location of the contamination makes them more manageable.
Including a knowledgeable environmental consultant in the very early stages of site identification can help focus the site selection process on the strongest candidate properties. This does not mean that the owner/developer of the property must spend tens of thousands of dollars on environmental investigations during site selection and initial negotiations. But it is important that the owner/developer make a well-informed decision based on his or her planned use of the property, business model, and budget.
A second reason to partner with an environmental consultant early is cost. There is a direct relationship between the physical redevelopment plan and the cost of remediation. For a large mixed-use redevelopment of a former industrial property, modest changes in the physical layout of the property can have a big effect on environmental remediation cost, and the impacts can be evaluated as part of site selection. For instance, if underground parking is proposed at the site, it could be located in an area with significant contamination issues, and then the cost of cleanup might be limited to disposing of contaminated soil. Similarly, many contaminant conditions can be managed by covering them with pavement or buildings. Cleanup costs can be minimized by choosing where parking lots and commercial buildings are located as compared to landscaped areas and residential buildings.
Of course, some cleanups may be driven by issues other than the use of the property. Some examples include contamination that is reaching the drinking water sources of other properties; migration of contaminants from groundwater into the indoor air of buildings on surrounding properties; and contaminated sediment or surface water in an adjacent river or lake. These types of issues are unlikely to be affected by changes in redevelopment plans and are often the most costly and complicated to resolve. By involving the environmental consultant early, these cleanup issues can be identified, separated from the real estate deal, and often left to the original owner to resolve - and pay for.
Environmental Cleanup Goals
How much cleanup is required or warranted? There is no fixed answer to that question because there is no fixed standard for the cleanup of a contaminated property. The level of cleanup is usually a function of the intended use of the property and, for a large piece of property with mixed uses, can change from area to area. The implementation of land use controls (LUCs), also known as institutional controls, often allows higher levels of contamination to be left behind by restricting access to the contamination. LUCs have allowed for the redevelopment of many properties that might otherwise have remained fallow. Conversely, when there are motivating factors such as a business advantage or a specific corporate philosophy, environmental cleanups may involve removing more contamination than required by environmental laws and regulations.
The impact of environmental stigma on a property can be very difficult to quantify. However, the potential for it to affect the success of a redevelopment may be changing. For many years, it has been assumed that neighbors would resist, or at least slow, efforts to redevelop contaminated properties when the redevelopment plan includes leaving some contamination behind. But significant outreach and education efforts by regulators, consultants, and developers have been steadily increasing the receptiveness and knowledge base of these stakeholders.
As a result, people in communities where redevelopment of a contaminated property is planned are in a better position to understand the real risks posed by the contamination, and can evaluate the value of the development on its merits. For example, at a former industrial property in a struggling section of Boston, the neighbors have all heard about and accepted that there are heavy metals and chlorinated solvents in soil and groundwater beneath the property. Over time, the residents have come to see the redevelopment as a way to control potential exposure to the contaminants and, more important, as a way to bring jobs and economic growth to the neighborhood. The neighbors are now some of the project's biggest advocates. Instead of insisting that every bit of contamination be removed, which would break most deals, communities are asking, "When can you start and when will the building be finished?"
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