Indoor Air Risk Analysis

Roux Associates has performed modeling of potential future indoor air concentrations and evaluation of associated risks at multiple Brownfields sites in Massachusetts pending sale and redevelopment.

For one site, a large telecommunications equipment manufacturing plant in northeastern Massachusetts undergoing remediation for several releases of chlorinated volatile organic compounds (CVOCs), Roux Associates was retained by the owner of the facility to assist them in negotiations with the contract purchaser, who desired unrestricted future use of the property so that a day care facility could be developed on the property. 

Roux Associates evaluated existing soil gas and indoor air data and determined that, even with completion of planned remedial measures, unrestricted future use of the property would not likely be possible given residual chlorinated volatile organic compound concentrations beneath portions of the plant.

Since inclusion of a day-care facility in the future use plan for the property was critical for the pending property transaction, Roux Associates was retained to model potential future indoor air concentrations and risk in various portions of the facility to determine the areas  in which a day-care facility could be located.

Based on the results of this modeling, Roux Associates helped draft a complex deed restriction which was amenable to all parties involved in the transaction, including the Massachusetts Attorney General’s Office, leading to the execution of a Brownfields Covenant Not to Sue that was integral to the ultimate success of the transaction.